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| 1 | Synthesis of novel adsorbent by intercalation of biopolymer in LDH for the removal of arsenic from synthetic and natural water显示文摘This study focuses on the synthesis of nanocomposites named CCA and CZA that were prepared by the incorporation of cellulose(CL)in the Ca/Al and Zn/Al layered double hydroxide(LDH),respectively.These materials were then used for the uptake of As(Ⅲ)and As(V)from aqueous medium.Characterization of both nanocomposites(CCA and CZA)was done using FTIR and Raman analysis to identify the functional groups,N2 adsorption-desorption isotherms to determine the specific surface area and pore geometry and XPS analysis to obtain the surface atomic composition.Some other characters were investigated using simultaneous TGA and DTA and elemental chemical analysis(CHNS/O).The crystallinity of the prepared nanocomposites was displayed by XRD patterns.Furthermore,the sheet-like structure of the LDHs and the irregularity of surface morphology with porous structure were observed by TEM and SEM microphotographs.Optimization of maximum adsorption capacity was adjusted using different parameters including pH,contact time and adsorbent dosage.The pseudo-second-order model was in good fitting with kinetics results.The adsorption isotherm results showed that CZA exhibits better adsorption capacity for As(Ⅲ)than CCA and the Langmuir isotherm model described the data well for both nanocomposites.Thermodynamic studies illustrated the endothermic nature of CCA and exothermic nature on CZA,as well as the fact that the adsorption process is spontaneous.A real water sample collected from well located in Gabes(Tunisia),has also been treated.The obtained experimental results were confirmed that these sorbents are efficient for the treatment of hazardous toxic species such as. | Hanen Bessaies Sidra Iftekhar Bhairavi Doshi Jamel Kheriji Mohamed Chaker Ncibi Varsha Srivastava Mika Sillanpaa Bechir Hamrouni | 2020 | Journal of Environmental Sciences2020，32，5： | 10 |
| 2 | Characterization and physicochemical aspects of novel cellulose-based layered double hydroxide nanocomposite for removal of antimony and fluoride from aqueous solution显示文摘A series of novel adsorbents composed of cellulose(CL)with Ca/Al layered double hydroxide(CC_(x)A;where x represent the Ca/Al molar ratio)were prepared for the adsorption of antimony(Sb(V))and fluoride(F^(-))ions from aqueous solutions.The CC_(x)A was characterized by Fourier-transform infrared spectroscopy(FTIR),Brunauer–Emmett–Teller(BET),elemental analysis(CHNS/O),thermogravimetric analysis(TGA-DTA),zeta potential,X-ray photoelectron spectroscopy(XPS)and scanning electron microscopy with energy dispersive Xray spectroscopy(SEM-EDX)analysis.The effects of varying parameters such as dose,pH,contact time,temperature and initial concentration on the adsorption process were investigated.According to the obtained results,the adsorption processes were described by a pseudo-second-order kinetic model.Langmuir adsorption isotherm model provided the best fit for the experimental data and was used to describe isotherm constants.The maximum adsorption capacity was found to be 77.2 and 63.1 mg/g for Sb(V)and F^(-),respectively by CC_(3)A(experimental conditions:pH 5.5,time 60 min,dose 15 mg/10 mL,temperature 298 K).The CC_(3)A nanocomposite was able to reduce the Sb(V)and F^(-)ions concentration in synthetic solution to lower than 6μg/L and 1.5 mg/L,respectively,which are maximum contaminant levels of these elements in drinking water according to WHO guidelines. | Hanen Bessaies Sidra Iftekhar Muhammad Bilal Asif Jamel Kheriji Chaker Necibi Mika Sillanpää Bechir Hamrouni | 2021 | Journal of Environmental Sciences2021，33，4： | 4 |
| 3 | Selective COX-2 inhibition improves endothelial function in coronary artery disease显示文摘 | Chenevard R Hurlimann D Bechir M | 2003 | Circulation2003，107，3： | 1 |
| 4 | Application of solid-phase microextraction to the analysis of volatile compounds in virgin olive oils from five new cultivars显示文摘 | Bechir Baccouri Sonia Ben Temime Elisabetta Campeol | 2007 | Food chemistry2007，102，： | 1 |
| 5 | Selective COX-2 inhibition improves endothelial function in coronary artery disease显示文摘 | Chencvard R Hurlimann D Bechir M | 2003 | Circulation2003，107，3： | 1 |
| 6 | Chemical composition and oxidative stability of Tunisian monova-rietal virgin olive oils with regard of fruit ripe- ning显示文摘 | Olfa Baccouri Mokhtar Guerfel Bechir Baccouri | 2008 | Food Chemistry2008，109，： | 1 |
| 7 | Physical Modeling:the Convergence of Cutting-edge Technologies and Miniature Tooling 显示文摘 | Kenzari Bechir | 2006 | International journal of architectural computing2006，，3： | 1 |
| 8 | The challenge of new competition on the world market for Tunisian olive oil exports: a Shift-Share analysis显示文摘 | Mokrani Aicha Sai Mohamed Bechir and Dhehibi Boobaker | 2011 | NEW MEDIT2011，10，4： | 1 |
| 9 | Selective COX-2 inhibition improves endothelial function in coronary artery disease显示文摘 | Chenevard R Hurlimann D Bechir M | 2003 | Circulation2003，107，： | 1 |
| 10 | Selective COX-2 inhibition improves endothelial function in coronary artery disease 显示文摘 | Chenevard R Hurlimann D Bechir M | 2003 | Circulation2003，107，1： | 1 |
| 11 | Saline water irrigation effects on soil salinity distribution and some physiological responses of field grown Chemlali olive显示文摘 | Ben Ahmed Chedlia Magdich Salwa Ben Rouina Bechir | 2012 | Journal of Environmental Management2012，113，53： | 1 |
| 12 | Erythroderma in adults:a report of 80 cases显示文摘 | Rym BM Mourad M Bechir Z | 2005 | Int J Dermatol2005，44，9： | 1 |
| 13 | Increasing hematocrit above 28% during early resuscitative phase is not associated with decreased mortality following severe traumatic brain injury 显示文摘 | Fluckiger C Bechir M Brenni M | 2010 | Acta Neurochir (Wien)2010，152，4： | 1 |
| 14 | High prevalence of human herpesvirus 8 in schizophrenic patients显示文摘 | Neila Hannachi Yousri El Kissi Samar Samoud Jaafar Nakhli Leila Letaief Samia Gaabout Bechir Ben Hadj Ali Jalel Boukadida | 2013 | Psychiatry Research2013，，： | 1 |
| 15 | Folic acid improves baroreceptor sensitivity in hypertension 显示文摘 | Bechir M Enseleit F Chenevard R | 2005 | Jcardiovasc Pharmacol2005，45，1： | 1 |
| 16 | Selective COX-2 inhibition improves endothelial function in coronary artery disease 显示文摘 | Chenevard R Hurlimann D Bechir M | 2003 | Circulation2003，107，3： | 1 |
| 17 | Extreme value theory and volue at risk:Application to oil market显示文摘 | Velayondoum Marimoutou Bechir Raggad Abdelwahed Trabelsi | 2009 | Energy Economios2009，31，4： | 1 |
| 18 | Automatic framework gen-eration for hard real-time applications显示文摘 | IRFAN H BECHIR Z ELIE N | | Innovations0，，： | 1 |
| 19 | A survey on energy-efficient routing techniques with QoS assurances for wireless multimedia sensor networks显示文摘 | SAMINA E BECHIR H | 2012 | IEEE Communications Surveys and Tutorials2012，14，2： | 1 |
| 20 | Selective COX-2 inhibition improves endothelial function in coronary artery disease显示文摘 | Chenevard R Hurlimann D Bechir M | 2003 | Circulation2003，107，： | 1 |
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