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| 1 | Structure and function of aggrecan显示文摘Aggrecan is the major proteoglycan in the articular cartilage. This molecule is important in the proper functioning of articular cartilage because it provides a hydrated gel structure (via its interaction with hyaluronan and link protein) that endows the cartilage with load-bearing properties. It is also crucial in chondroskeletal morphogenesis during development. Aggrecan is a multimodular molecule expressed by chondrocytes. Its core protein is composed of three globular domains (G1, G2, and G3) and a large extended region (CS) between G2 and G3 for glycosaminoglycan chain attachment. G1 comprises the amino terminus of the core protein. This domain has the same structural motif as link protein. Functionally, the G1 domain interacts with hyaluronan acid and link protein, forming stable ternary complexes in the extracellular matrix. G2 is homologous to the tandem repeats of G1 and of link protein and is involved in product processing. G3 makes up the carboxyl terminus of the core protein. It enhances glycosaminoglycan modification and product secretion. Aggrecan plays an important role in mediating chondrocyte-chondrocyte and chondrocyte-matrix interactions through its ability to bind hyaluronan. | CHRIS KIANI, LIWEN CHEN, YAO JIONG WU, ALBERT J YEE, BURTON B YANG, Sunnybrook and Women’s College Health Sciences Centre and Department of Laboratory Medicine and Patobiology, 2 Department of Surgeny, Faculty of Medicine, University of Toronto, Canada | 2002 | Cell Research2002，12，1： | 27 |
| 2 | Design of lightweight magnesium car body structure under crash and vibration constraints显示文摘Car body design in view of structural performance and lightweighting is a challenging task due to all the performance targets that must be satisfied such as vehicle safety and ride quality.In this paper,material replacement along with multidisciplinary design optimization strategy is proposed to develop a lightweight car body structure that satisfies the crash and vibration criteria while minimizing weight.Through finite element simulations,full frontal,offset frontal,and side crashes of a full car model are evaluated for peak acceleration,intrusion distance,and the internal energy absorbed by the structural parts.In addition,the first three fundamental natural frequencies are combined with the crash metrics to form the design constraints.The wall thicknesses of twenty-two parts are considered as the design variables.Latin Hypercube Sampling is used to sample the design space,while Radial Basis Function methodology is used to develop surrogate models for the selected crash responses at multiple sites as well as the first three fundamental natural frequencies.A nonlinear surrogate-based optimization problem is formulated for mass minimization under crash and vibration constraints.Using Sequential Quadratic Programming,the design optimization problem is solved with the results verified by finite element simulations.The performance of the optimum design with magnesium parts shows significant weight reduction and better performance compared to the baseline design. | Morteza Kiani Imtiaz Gandikota Masoud Rais-Rohani Keiichi Motoyama | 2014 | Journal of Magnesium and Alloys2014，2，2： | 24 |
| 3 | High-throughput RNA interference screens integrative analysis: Towards a comprehensive understanding of the virus-host interplay显示文摘Viruses are extremely heterogeneous entities; the size and the nature of their genetic information, as well as the strategies employed to amplify and propagate their genomes, are highly variable. However, as obligatory intracellular parasites, replication of all viruses relies on the host cell. Having co-evolved with their host for several million years, viruses have developed very sophisticated strategies to hijack cellular factors that promote virus uptake, replication, and spread. Identification of host cell factors(HCFs) required for these processes is a major challenge for researchers, but it enables the identification of new, highly selective targets for anti viral therapeutics. To this end, the establishment of platforms enabling genome-wide high-throughput RNA interference(HT-RNAi) screens has led to the identification of several key factors involved in the viral lifecycle. A number of genome-wide HT-RNAi screens have been performed for major human pathogens. These studies enable first inter-viral comparisons related to HCF requirements. Although several cellular functions appear to be uniformly required for the life cycle of most viruses tested(such as the proteasome and the Golgi-mediated secretory pathways), some factors, like the lipid kinase Phosphatidylinositol 4-kinase Ⅲα in the case of hepatitis C virus, are selectively required for individual viruses. However, despite the amount of data available, we are still far away from a comprehensive understanding of the interplay between viruses and host factors. Major limitations towards this goal are the low sensitivity and specificity of such screens, resulting in limited overlap between different screens performed with the same virus. This review focuses on how statistical and bioinformatic analysis methods applied to HTRNAi screens can help overcoming these issues thus increasing the reliability and impact of such studies. | Sandeep Amberkar Narsis A Kiani Ralf Bartenschlager Gualtiero Alvisi Lars Kaderali | 2013 | World Journal of Virology2013，2，2： | 9 |
| 4 | The Effect of Land Use Change on Soil and Water Quality in Northern Iran显示文摘Rapid urbanization has led to extensive land-use changes,particularly in developing countries.This research is aimed to investigate the role of land use and its effect on soil and water quality in Ziarat watershed focusing on four land uses:forest,pasture,cultivated and urban development.Soil samples were taken from a depth of 0-30 cm on each land use and were analyzed by completely randomized split-plot design in two geographical directions.Results showed that bulk density(BD),electrical conductivity(EC),pH,calcium carbonate equivalent(CCE),and soil particle density(DS) of the soil samples in pastures,cultivated and urban areas increased and the mean weight diameter(MWD),soil porosity(F),organic carbons(OC),total nitrogen(TN),exchangeable cations(Ca 2+,Mg 2+,K +,Na +),cation exchange capacity(CEC) and soil microbial respirations(SMR) decreased,respectively in comparison with the forest soils.For water quality evaluations,sodium adsorption ratio(SAR),electrical conductivity(EC),pH,total dissolved solids(TDS),bicarbonate(HCO 3),chloride(Cl),total hardness(TH),calcium(Ca 2+),potassium(K +),sodium(Na +) and magnesium(Mg 2+) were investigated in two areas:Nahrkhoran and Abgir stations.Results showed that the concentration of TDS,EC and HCO 3 in Naharkhoran station is higher than that in Abgir station.On the other hand,the concentration of TDS,EC and HCO 3 in Abgir station are the relatively higher due to its location.Total hardness had the same trend during the study years except in the last three years;however,TH showed an increase of 25% TH in Naharkhoran for the last two years.Cl,K + and SAR in Naharkhoran station increased by 61%,22%,78% and 56% respectively,in comparison with Abgir station.This study demonstrated that the trend of soil degradation and mismanagement of land use may increase the frequency of urban floods and human health problems. | KHALEDIAN Yones KIANI Farshad EBRAHIMI Sohaila | 2012 | Journal of Mountain Science2012，9，6： | 7 |
| 5 | Recent developments in electrocatalysts and future prospects for oxygen reduction reaction in polymer electrolyte membrane fuel cells显示文摘The main difficulty in the extensive commercial use of polymer electrolyte membrane fuel cells(PEMFCs)is the use of noble metals such as Pt-based electrocatalyst at the cathode, which is essential to ease the oxygen reduction reaction(ORR) in fuel cells(FCs). To eliminate the high loading of Pt-based electrocatalysts to minimize the cost, extensive study has been carried out over the previous decades on the non-noble metal catalysts. Development in enhancing the ORR performance of FCs is mainly due to the doped carbon materials, Fe and Co-based electrocatalysts, these materials could be considered as probable substitutes for Pt-based catalysts. But the stability of these non-noble metal electrocatalysts is low and the durability of these metals remains unclear. The three basic reasons of instability are:(i) oxidative occurrence by H_2O_2,(ii) leakage of the metal site and(iii) protonation by probable anion adsorption of the active site. Whereas leakage of the metal site has been almost solved, more work is required to understand and avoid losses from oxidative attack and protonation. The ORR performance such as stability tests are usually run at low current densities and the lifetime is much shorter than desired need. Therefore,improvement in the ORR activity and stability are the key issues of the non-noble metal electrocatalyst.Based on the consequences obtained in this area, numerous future research directions are projected and discussed in this paper. Hence, this review is focused on improvement of stability and durability of the non-noble metal electrocatalyst. | Maryam Kiani Jie Zhang Yan Luo Chunping Jiang Jinlong Fan Gang Wang Jinwei Chen Ruilin Wang | 2018 | Journal of Energy Chemistry2018，27，4： | 7 |
| 6 | Effect of different seed treatments on dormancy breaking and germination in three species in arid and semi-arid lands显示文摘Seeds of many woody plant species have one of several types of dormancy. They do not germinate unless specific environmental signals are in place or events occur. This study was conducted to evaluate the effects of scarification treatments on seed dormancy and germination of Acacia nilotica (L.) Willd. ex Del., Prosopis juliflora (Sw.) DC. and Dodonaea viscosa (L.) Jacq. The following treatments were applied: T1, untreated seed (control); T2, sulphuric acid (97%) for 45 min; T3, boiling water for 5 min. The seeds were cultured on a Murashige and Skoog (MS) medium after sterilization. The responses of seeds to treatments were compared with each other and with the control treatment. Germination was observed daily for a 30-day period. Results indicated positive responses to treatments, while impermeable seed coats may be responsible for low germination rates in intact seeds as seen experimentally in the untreated control. The highest germination was obtained for P. juliflora and D. viscosa acid-scarified seeds (80.8%-90.8%) and for scarified seeds of A. nilotica (50.2%) boiled in water. The germination indices, i.e., final germination percentage (FG), mean daily germination (MDG) and germination rate (GR), were significantly affected by treatments and species (p<0.01). | Seyed Mohammad Hosseini NASR Sekineh Kiani SAVADKOOHI Elahe AHMADI | 2013 | Forestry Studies in China2013，15，2： | 7 |
| 7 | Acoustic radiation force impulse imaging for assessing liver fibrosis in alcoholic liver disease显示文摘AIM: To evaluate the performance of elastography by ultrasound with acoustic radiation force impulse(ARFI) in determining fibrosis stage in patients with alcoholic liver disease(ALD) undergoing alcoholic detoxification in relation to biopsy.METHODS: Eighty-three patients with ALD undergoing detoxification were prospectively enrolled. Each patient underwent ARFI imaging and a liver biopsy onthe same day. Fibrosis was staged according to the METAVIR scoring system. The median of 10 valid ARFI measurements was calculated for each patient.RESULTS: Sixty-nine males and thirteen females(one patient excluded due to insufficient biopsy size) were assessed with a mean alcohol consumption of 132.4 ± 128.8 standard drinks per week and mean cumulative year duration of 17.6 ± 9.5 years. Sensitivity and specificity were respectively 82.4%(0.70-0.95) and 83.3%(0.73-0.94)(AUROC = 0.87) for F ≥ 2 with a cut-off value of 1.63m/s; 82.4%(0.64-1.00) and 78.5%(0.69-0.89)(AUROC = 0.86) for F ≥ 3 with a cut-off value of 1.84m/s; and 92.3%(0.78-1.00] and 81.6%(0.72-0.90)(AUROC = 0.89) for F = 4 with a cut-off value of 1.94 m/s.CONCLUSION: ARFI is an accurate, non-invasive and easy method for assessing liver fibrosis in patients with ALD undergoing alcoholic detoxification. | Anita Kiani Vanessa Brun Fabrice Lainé Bruno Turlin Jeff Morcet Sophie Michalak Antonia Le Gruyer Ludivine Legros Edouard Bardou-Jacquet Yves Gandon Romain Moirand | 2016 | World Journal of Gastroenterology2016，22，20： | 6 |
| 8 | Mixing and segregation of solid particles in a conical spouted bed: Effect of particle size and density显示文摘 | M. Kiani M.R. Rahimi S.H. Hosseini G. Ahmadi | 2017 | Particuology2017，15，3： | 5 |
| 9 | Modified consecutive modal pushover procedure for seismic investigation of one-way asymmetric-plan tall buildings显示文摘The effects of higher modes and torsion have a significant impact on the seismic responses of asymmetric-plan tall buildings.A consecutive modal pushover(CMP) procedure is one of the pushover methods that have been developed to consider these effects.The aim of this paper is to modify the(CMP) analysis procedure to estimate the seismic demands of one-way asymmetric-plan tall buildings with dual systems.An analysis of 10-,15-and 20-story asymmetric-plan buildings is carried out,and the results from the modified consecutive modal pushover(MCMP) procedure are compared with those obtained from the modal pushover analysis(MPA) procedure and the nonlinear time history analysis(NLTHA).The MCMP estimates of the seismic demands of one-way asymmetric-plan buildings demonstrate a reasonable accuracy,compared to the results obtained from the NLTHA.Furthermore,the accuracy of the MCMP procedure in the prediction of plastic hinge rotations is better than the MPA procedure.The new pushover procedure is also more accurate than the FEMA load distribution and the MPA procedure. | Faramarz Khoshnoudian Mahdi Kiani | 2012 | Earthquake Engineering and Engineering Vibration2012，11，2： | 4 |
| 10 | Field-effect passivation on silicon nanowire solar cells显示文摘表面再结合为高效率的太阳能电池代表一个缺陷。这为 nanowire 数组太阳能电池是特别重要的,在 surface-to-volume 比率极大地被提高的地方。这里,有效再结合上并且在设备表演上的不同钝化材料的效果试验性地被分析。我们的太阳能电池是自顶向下的轴的 n-p 连接硅 nanowires 借助于近地的阶段移动平版印刷术(NF-PSL ) 制作了的大区域。我们为最好的房间报导 9.9% 的效率,与 SiO 使钝化 < 潜水艇 class= “ a-plus-plus ” > 2 /SiN x 栈。表面的存在的影响在硅 / 氧化物接口修理了费用密度被学习。 | Anna Dalmau Mallorqui Esther Alarcon-Llado Ignasi Canales Mundet Amirreza Kiani Benedicte Demaurex Stefaan De Wolf Andreas Menzel Margrit Zacharias Anna Fontcuberta i Morra | 2015 | Nano Research2015，8，2： | 3 |
| 11 | Effect of transferring lignocellulose-degrading bacteria from termite to rumen fluid of sheep on in vitro gas production, fermentation parameters, microbial populations and enzyme activity显示文摘The digestive tract of termite(Microcerotermes diversus) contains a variety of lignocellulose-degrading bacteria with exocellulases enzyme activity, not found in the rumen, which could potentially improve fiber degradation in the rumen. The objectives of the current study were to determine the effect of inoculation of rumen fluid(RF) with three species of bacteria isolated from termite digestive tract, Bacillus licheniformis, Ochrobactrum intermedium, and Microbacterium paludicola, on in vitro gas production(IVGP), fermentation parameters, nutrient disappearance, microbial populations, and hydrolytic enzyme activities with fibrous wheat straw(WS) and date leaf(DL) as incubation substrate. Inoculation of RF with either of three termite bacteria increased(P<0.05) ammonia-N concentration compared with the control group(free of termite gut bacteria). Termite bacteria inoculation had no effect(P>0.05) on gas production characteristics, dry matter, organic matter and neutral detergent fiber disappearance, pH, and concentration and composition of volatile fatty acids. Population of proteolytic bacteria and protozoa, but not cellulolytic bacteria, were increased(P<0.05) when RF was inoculated with termite bacteria with both WS and DL substrates. Inoculation of RF with termite bacteria increased protease activity, while activities of carboxymethyl-cellulase, microcrystalline-cellulase, α-amylase and filter paper degrading activity remained unchanged(P>0.05). Overall, the results of this study indicated that transferring lignocellulose-degrading bacteria, isolated from digestive tract of termite, to rumen liquid increased protozoa and proteolytic bacteria population and consequently increased protease activity and ammonia-N concentration in vitro, however, no effect on fermentation and fiber degradation parameters were detected. These results suggest that the termite bacteria might be rapidly lysed by the rumen microbes before beneficial effects on the rumen fermentation process could occur. | Ayoub AZIZI Afrooz SHARIFI Hasan FAZAELI Arash AZARFAR Arjan JONKER Ali KIANI | 2020 | Journal of Integrative Agriculture2020，19，5： | 3 |
| 12 | Changes induced by osmotic stress in the morphology, biochemistry, physiology, anatomy and stomatal parameters of almond species(Prunus L. spp.) grown in vitro显示文摘We investigated the influence of different levels of osmotic stress on growth and development in selected wild almond species(eight Prunus spp.) grown in vitro. The study, while endorsing the efficacy of in vitro screening of auxiliary buds of wild almond for osmotic stress tolerance, showed species variability in its response to osmotic stress. Osmotic stress reduced growth and development of all the species. However, the putative tolerant Prunus spp. showed better performance than the putative susceptible genotypes. On average there was an 80% decrease in shoot dry weight at-1.2 MPa. Reduction in shoot weight was more common in osmotic stress-susceptible species in the section labeled ‘Euamygdalus'. The tolerant Prunus species produced smaller changes in biochemical responses than the sensitive cultivars for malondialdehyde content, catalase activity, relative permeability of protoplast membranes, and net photosynthetic rate. The tolerant species maintained cell integrity better than drought sensitive species. Wild almond species in the section labeled ‘Spartioides'(Prunus arabica(Olivier) Neikle, Prunus glauca (Browicz) A.E. Murray, Prunus scoparia Spach) and ‘Lycioides'(Prunus lycioides Spach, Prunus reuteri Bossi. et Bushe) were best adapted to osmotic stress. Increase in chlorophyll concentration and leaf thickness under high osmotic stress can be considered as preliminary selection parameters for osmotic stress tolerance in Prunus spp. The study confirmed the efficacy of the in vitro method for screening of large number of genotypes for osmotic stress tolerance in wild almond species. | Shakiba Rajabpoor Soghra Kiani Karim Sorkheh Farahnaz Tavakoli | 2014 | Journal of Forestry Research2014，25，3： | 3 |
| 13 | Assessing dynamic response of multispan viscoelastic thin beams under a moving mass via generalized moving least square method显示文摘Dynamic response of multispan viscoelastic thin beams subjected to a moving mass is studied by an efficient numerical method in some detail.To this end,the unknown parameters of the problem are discretized in spatial domain using generalized moving least square method(GMLSM) and then,discrete equations of motion based on Lagrange's equation are obtained.Maximum deflection and bending moments are considered as the important design parameters.The design parameter spectra in terms of mass weight and velocity of the moving mass are presented for multispan viscoelastic beams as well as various values of relaxation rate and beam span number.A reasonable good agreement is achieved between the results of the proposed solution and those obtained by other researchers.The results indicate that,although the load inertia effects in beams with higher span number would be intensified for higher levels of moving mass velocity,the maximum values of design parameters would increase either.Moreover,the possibility of mass separation is shown to be more critical as the span number of the beam increases.This fact also violates the linear relation between the mass weight of the moving load and the associated design parameters,especially for high moving mass velocities.However,as the relaxation rate of the beam material increases,the load inertia effects as well as the possibility of moving mass separation reduces. | Keivan Kiani Ali Nikkhoo Bahman Mehri | 2010 | Acta Mechanica Sinica2010，26，5： | 3 |
| 14 | 二维氮化钨纳米片催化剂的可控制备及其氧还原性能研究(英文)显示文摘本文以钨酸钠和硫酸钾等试剂为原料,采用水热结合氨气氮化的方法原位获得了一种二维的氮化钨(WN)晶体,并将其作为氧还原(ORR)反应的催化剂.通过控制和优化制备条件(水热过程中硫酸钾含量、pH值以及氮化条件包括氮化温度和氮化时间),实现了纳米WN的可控制备. | 张洁 陈金伟 罗艳 陈奕含 Maryam Kiani 魏小洋 罗瑞 王刚 王瑞林 | 2018 | Science China Materials2018，61，12： | 3 |
| 15 | A Green and Highly Efficient Protocol for Catalyst-free Kno- evenagel Condensation and Michael Addition of Aromatic Al- dehydes with 1,3-Cyclic Diketones in PEG-400显示文摘为从有在在 PEG-400 的房间温度的 dimedone 和 1,3-indanedione 的芳香的醛的 tetraketones 的合成的一条方便、高度有效、绿的途径被描述。是的 PEG-400 的使用反应媒介并且避免任何催化剂的使用使这个过程环境地良性。七新混合物被报导。 | Firouzeh, Nemati Hossein, Kiani | 2011 | Chinese Journal of Chemistry2011，29，11： | 2 |
| 16 | Single balloon enteroscopy for endoscopic retrograde cholangiography in patients with Roux-en-Y hepaticojejuno anastomosis显示文摘AIM:To evaluate single balloon enteroscopy in diagnostic and therapeutic endoscopic retrograde cholangiography(ERC)in patients with Roux-en-Y hepaticojejunoanastomosis(HJA).METHODS:The study took place from January 2009to December 2011 and we retrospectively assessed 15patients with Roux-en-Y HJA who had signs of biliary obstruction.In total,23 ERC procedures were performed in these patients and a single balloon videoen-teroscope(Olympus SIF Q 180)was used in all of the cases.A transparent overtube was drawn over the videoenteroscope and it freely moved on the working part of the enteroscope.Its distal end was equipped with a silicone balloon that was inflated by air from an external pump at a pressure of≤5.4 kPa.The technical limitations or rather the parameters of the single balloon enteroscope(working length-200 cm,diameter of the working channel-2.8 mm,absence of Albarran bridge)showed the need for special endoscopic instrumentation.RESULTS:Cannulation success was reached in diagnostic ERC in 12 of 15 patients.ERC findings were normal in 1 of 12 patients.ERC in the remaining 11 patients showed some pathological changes.One of these(cystic bile duct dilation)was subsequently resolved surgically.Endoscopic treatment was initialized in the remaining 10 patients(5 with HJA stenosis,2 with choledocholithiasis,and 3 with both).This treatment was successful in 9 of 10 patients.The endoscopic therapeutic procedures included:balloon dilatation of HJA stenosis-11 times(7 patients);choledocholitiasis extraction-five times(5 patients);biliary plastic stent placement-six times(4 patients);and removal of biliary stents placed by us-six times(4 patients).The mean time of performing a single ERC was 72 min.The longest procedure took 110 min and the shortest took34 min.This shows that it is necessary to allow for more time in individual procedures.Furthermore,these procedures require the presence of an anesthesiologist.We did not observe any complications in these 15 patients.CONCLUSION:This method is more demanding than standard endoscopic retrograde cholangiopancreatography due to altered postsurgical anatomy.However,it is effective,safe,and widens the possibilities of resolving biliary pathology. | Bohuslav Kianika Jan Lata Ivo Novotny Petr Dítě Jirí Vaníek | 2013 | World Journal of Gastroenterology2013，19，44： | 2 |
| 17 | Iran supports a great share of biodiversity and floristic endemism for Fritillaria spp.(Liliaceae):A review显示文摘Iran supports a great share of exotic and/or endemic plant genera and species. The genus Fritillaria(Liliaceae) is a precious part of this botanical richness with 19 species, of which 10 are endemic to the country. However, signs are mounting that the country is truly at a crossroads when it comes to preservation of this national wealth. In this regard, an effective conservation strategy should thoroughly consider the classification of Fritillaria, as conservation practices are compromised by knowledge gaps in systematics and taxonomy. As published studies on Fritillaria in Iran have been sporadic and limited in scope, the aim of this review is to provide information necessary to help bridge these information gaps.Our objective is to facilitate increased understanding of the geographic, taxonomic, cytogenetic and phylogenetic status of Iranian Fritilloria, which is vital to meeting the goal of sustainable conservation of the genus in Iran and neighboring areas. | Mahmoud Kiani Shirin Mohammadi Alireza Babaei Fatemeh Sefidkon Mohamad Reza Naghavi Mojtaba Ranjbar Seyed Ali Razavi Keramatollah Saeidi Hadi Jafari Davoud Asgari Daniel Potter | 2017 | Plant Diversity2017，39，5： | 2 |
| 18 | Zn(NO_3)_2·6H_2O/2,4,6-trichloro-1,3,5-triazine(TCT) a mild and selective system for nitration of phenols显示文摘Certain phenols and naphthols were nitrated regioselectively with Zn(NO_3)_2·6H_2O/TCT in acetonitrile as solvent at room temperature and short reaction time in good yields.The reaction condition was mild.TCT is a cheap and commercially available reagent.It performed as an acid catalyst in this transformation. | Firouzeh Nemati Hossein Kiani | 2010 | Chinese Chemical Letters2010，21，4： | 2 |
| 19 | Stress analysis of thermally affected rotating nanoshafts with varying material properties显示文摘Based on the surface elasticity theory of GurtinMurdoch, thermo-elastic fields within rotating nanoshafts with varying material properties subjected to a thermal field are explicitly examined. Accounting for the surface energy effect, the nonclassical boundary conditions are enforced in the cases of fixed-free and free-free conditions. The effects of variation of material properties, temperature of the environment, angular velocity, and radius of the outer radius on the radial displacement, hoop and radial stresses are investigated. In all performed studies, the role of the surface effect on the thermo-elastic field of the nanostructure is methodically discussed. | Keivan Kiani | 2016 | Acta Mechanica Sinica2016，32，5： | 2 |
| 20 | 功能化纳米碳管对水溶液中Pb2+吸附的动力学、平衡与等温线(英文)显示文摘以3-Amino-5a,10a-dihydroxybenzo[b] indeno [2,l-d]furan-10-one (ADIF)功能化改性的纳米碳管(MWCNT-ADIF)为吸附剂,除去水溶液中的Pb^2+。采用FT-IR, SEM, TGA及DTG对MWCNT-ADIF样品进行表征。探讨了pH值、Pb^2+初始浓度、吸附量和接触时间对吸附动力学与平衡的影响。采用4种二参数模型(Langmuir、Freundlich、Tempkin与Dubinin-Radushkevich)和6种三参数模型(Redlich-Peterson, Khan, Sips, Radke-Prausnitz, Toth, Hil)研究Pb^2+吸附等温线。通过伪一阶动力学模型、伪二阶动力学模型和粒子内扩散模型分析吸附动力学。采用3种误差分析方法、相关系数、卡方值和平均相对误差来确定最佳拟合等温线和动力学模型。结果表明,吸附动力学与伪二阶动力学模型相吻合。误差分析表明,三参数模型比二参数模型更适合描述Pb^2+吸附数据。等温线数据与Langmuir、 Hill和Sips models相符。MWCNT-ADIF在pH=3溶液中能脱除92%的Pb^2+,并且回收后的MWCNT-ADIF能重复使用5个再生周期。 | Hamzeh Eyni Hasan Tahermansouri Farhoush Kiani Mansour Jahangiri | 2019 | 新型炭材料2019，34，6： | 2 |
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