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19篇 您的检索式:作者名="Hualei Zhou"
    题名 作者 年代 出处 被引量
1Extraction of scandium from red mud by modified activated carbon and kinetics study显示文摘激活的碳(交流) 被 tri 丁基磷酸盐(TBP ) 为有选择地从红泥提取钪修改并且由赌注(Brunauer-Emmett-Teller ) 表面区域描绘了。修改交流有优先的吸附到钪。到钪的吸附能力和选择上的吸附物剂量,吸附温度,和时间的影响被检验。最佳吸附物剂量(6.25 g/L ) ,吸附温度(308 K ) ,和吸附时间(40 min ) 被弄明白。一个 pseudo-second-order 动力学模特儿为描述钪的吸附过程被雇用。ZHOU Hualei LI Dongyan TIAN Yajun CHEN Yunfa 2008Rare Metals2008,27,3:20
2Preparation,characterization of Mo,Ag-loaded BiVO_4 and comparison of their degradation of methylene blue显示文摘Two types of metal-loaded visible-light-driven photocatalysts,Mo-BiVO4and Ag-BiVO4,were synthesized by wet impregnation method.Material poperties were characterized by UV-vis diffuse reflectance spectroscopy,X-ray diffraction,field emission scanning electron microscopy,X-ray photoelectron spectroscopy and low temperature nitrogen adsorption-desorption.Photocatalytic activity of the obtained materials was investigated through degrading methylene blue(MB) solution under visible-light irradiation.The results reveal that both metal loaded-BiVO4catalysts have monoclinic scheelite structure.Mo and Ag exist as oxides on the surface of the particles.The changes of absorption in visible-light region,band gap(E g) and specific surface area(A BET) caused by loading Ag are more obvious than those caused by loading Mo.But the isoelectric point of Ag-BiVO4decreases less than that of Mo-BiVO4does.Both catalysts show higher photocatalytic activity than pure BiVO4,resulting in the significantly improved efficiency of degradation of MB.And the degradation efficiency of these two metal-loaded BiVO4photocatalysts is similar to each other.However,mechanisms of such enhancement are different.The decrease of isoelectric point helps Mo-BiVO4improve the degradation efficiency.As for Ag-BiVO4,the augmentation of absorption in visible-light region as well as the abatement of E g plays more important roles.LIU KunJie CHANG ZhiDong LI WenJun CHE Ping ZHOU HuaLei 2012Science China Chemistry2012,55,9:10
3Effect of acidic surface functional groups on Cr(Ⅵ) removal by activated carbon from aqueous solution显示文摘The activated carbon with high surface area was prepared by KOH activation.It was further modified by H2SO4 and HNO3 to introduce more surface functional groups.The pore structure of the activated carbons before and after modification was analyzed based on the nitrogen adsorption isotherms.The morphology of those activated carbons was characterized using scanning electronic microscopy (SEM).The surface functional groups were determined by Fourier transform infrared spectroscopy (FTIR).The quantity of those groups was measured by the Boehm titration method.Cr(VI) removal by the activated carbons from aqueous solution was investigated at different pH values.The results show that compared with H2SO4,HNO3 destructs the original pore of the activated carbon more seriously and induces more acidic surface functional groups on the activated carbon.The pH value of the solution plays a key role in the Cr(VI) removal.The ability of reducing Cr(VI) to Cr(III) by the activated carbons is relative to the acidic surface functional groups.At higher pH values,the Cr(VI) removal ratio is improved by increasing the acidic surface functional groups of the activated carbons.At lower pH values,however,the acidic surface functional groups almost have no effect on the Cr(VI) removal by the activated carbon from aqueous solution.ZHOU Hualei CHEN Yunfa 2010Rare Metals2010,29,3:6
4Identification of Oblate Band in Odd-odd ^(184)Au显示文摘The high-spin states in 184Au were populated by using the 159Tb( 29Si, 4ng) 184Au reaction at a bombarding energy of 140 MeV. The 29Si beam of 8 pnA was provided by the accelerator complex of the Tandem-XTU and ALPI at the Laroratori Nazionale di Legnero, Italy, and focussed onto a natural metallic 159Tb foilZhang Yuhu Wang Hualei G. de Angelis N. Maiginean A. Gadea D. R. Napoli M. Axiotis C. R.usu T. Martinez Zhou Xiaohong Fang Yongde Guo Wentao Liu Minliang Lei Xiangguo Guo Yingxiang 2004近代物理研究所和兰州重离子加速器实验室年报:英文版2004,,1:2
5Extraction of lithium from the simulated pyrometallurgical slag of spent lithium-ion batteries by binary eutectic molten carbonates显示文摘The effective and low-temperature extraction of lithium from the pyrometallurgical slag of spent lithium-ion batteries(LIBs)remains a great challenge.Herein,potassium carbonate/sodium carbonate(K_(2)CO_(3)/Na_(2)CO_(3)),which could form a eutectic molten salt system at 720℃,was used as a roasting agent to extract lithium from pyrometallurgical slag.Lithium was successfully extracted from the slag by K_(2)CO_(3)/Na_(2)CO_(3) roasting followed by water leaching.Theoretical calculation results indicate that the lengths of Li-O bonds increase after K^(+)/Na^(+)adsorption,resulting in the easy release of Li^(+)from the LiAlSi_(2)O_(6) lattice after roasting with K_(2)CO_(3)/Na_(2)CO_(3).Thermogravimetry-differential scanning calorimetry results indicate that the eutectic phenomenon of K_(2)CO_(3) and Na_(2)CO_(3) could be observed at 720℃ and that the reaction of the slag and eutectic molten salts occurs at temperatures above 720℃.X-ray diffraction results suggest that Li^(+)in the slag is exchanged by K^(+)in K_(2)CO_(3) with the concurrent formation of KAlSiO_(4),while Na_(2)CO_(3) mainly functions as a fluxing agent.The lithium extraction efficiency can reach 93.87%under the optimal conditions of a roasting temperature of 740℃,roasting time of 30 min,leaching temperature of 50℃,leaching time of 40 min,and water/roasted sample mass ratio of 10:1.This work provides a new system for extracting lithium from the pyrometallurgical slag of spent LIBs.Hui Dang Zhidong Chang Hualei Zhou Sihang Ma Min Li Jialing Xiang 2022International Journal of Minerals,Metallurgy and Materials2022,29,9:2
6Na_(2)SO_(4)-NaCl binary eutectic salt roasting to enhance extraction of lithium from pyrometallurgical slag of spent lithium-ion batteries显示文摘Effectively extracting lithium at a relatively low temperature from the slag produced by the pyrometallurgical treatment of spent lithium-ion batteries remains a great challenge,which limits the acquirement of lithium.Herein,we proposed a eutectic system to roast slag at a lower temperature based on sodium sulfate-sodium chloride(Na_(2)SO_(4)-NaCl)binary eutectic salts.The optimal roasting conditions are as follows:the slag was roasted at 750℃with a(SO_(4)^(2-)+Cl^(-))/Li+molar ratio of 5:1 for 120 min.Followed by aqueous leaching 5 min at room temperature with a water/roasted samples mass ratio of 30:1,it can get 97.07%lithium extraction efficiency.Hui Dang Zhidong Chang Xue Wu Sihang Ma Yifei Zhan Na Li Wenbo Liu Wenjun Li Hualei Zhou Changyan Sun 2022Chinese Journal of Chemical Engineering2022,35,1:1
7Enhancement of Dielectric Properties in 0.98(K_(0.5)Na_(0.5))NbO_3-0.02LaFeO_3 Ceramics by Optimizing Sintering Temperature显示文摘Lead-free 0.98(K_(0.5)Na_(0.5))NbO_3-0.02LaFeO_3(abbreviated as 0.98KNN-0.02LF) ceramics were prepared by a conventional solid-state sintering method at various sintering temperatures of 1140,1145,1150,1155 and 1160 ℃ and dwell time for 2 h.The samples were characterized by X-ray diffraction and scanning electron microscopy,respectively.The dielectric properties of the 0.98KNN-0.02 LF ceramics were also investigated.The results show that all the ceramics sintered at different sintering temperatures are a pure pseudo-cubic perovskite phase,and it is effective to improve the density and dielectric properties when the sintering temperature increases.However,the properties of the ceramics can be deteriorated when the sintering temperature exceeds the optimum value.The 0.98KNN-0.02 LF ceramics sintered at1150 ℃ for 2 h show the optimum dielectric properties,i.e.,the high dielectric permittivity(near 2000) and low dielectric loss(<5%) in the temperature range of 100-400 ℃ and the capacitance variation(AC/C_(150℃)) of ±15%,indicating a potential application in high-temperature ceramics capacitors.CHENG Hualei ZHOU Wancheng DU Hongliang FA Luo ZHU dongmei 2015Journal of the Chinese Ceramic Society2015,,3:0
8AgOTf-Catalyzed Tandem Reaction of Oxabenzonorborna- dienes with Arylacetylenes显示文摘oxabenzonorbornadienes 和 arylacetylenes 的双人脚踏车 isomerization/hydroarylation 反应被把 AgOTf 用作催化剂认识到。1,1-Diarylethylenes 能容易作为产品被产生在对在这双人脚踏车反应的好收益中等。Yongyun Zhou Shanshan Liu Hualei Chen Jingchao Chen Weiqing Sun Sifeng Li Qingjing Yang Baomin Fan 2015Chinese Journal of Chemistry2015,33,10:0
9Syntheses, Structures and Properties of Four New Transitional Metal Complexes Based on Benzotriazole-5-carboxylic Acid显示文摘四新建筑群,[ Zn ( btca )( 2,2-bpy )]( 1 ),[ Mn ( btca )( 2,2-bpy )]( 2 ),[公司( btca )( phen )]( 3 ),并且[ Cu ( btca )( phen )]( 4 ),( H2btca=benzotriazole-5-carboxylic 酸, 2,2-bpy=2,2-bipyridine , phen=1,10-phenanthroline ),被元素的分析,单个水晶X光检查衍射,和红外光谱学成功地综合并且描绘。14 与空格在斜方晶的系统使结晶的建筑群 Pbca 组织并且显示出类似的 2D 层,它被连结到超分子的网络由 - 叠相互作用。而且, TGA 曲线证明 14 有的建筑群好热稳定性。固态荧光灯建筑群 1 的性质也在房间温度被调查。Yang Li Changyan Sun Wenjun Li Hualei Zhou Bin Dong 2013Chinese Journal of Chemistry2013,31,8:0
10Signature Inversion in πi_(13/2) ■ vi_(13/2) Band of ^(184)Au显示文摘Low-spin signature inversion has been systematically observed throughout the chart of nuclides in the πg9/2(■) vg9/2, πh11/2(■)vh11/2, πh11/2(■)vh13/2, and πh9/2(■) vi13/2, configurations. Considering the high-j nature of these configurations, we have tried to find the similar signature inversion phenomenon in the πi13/2 (■) vi13/2, bandsZhang Yuhu Fang Yongde G. de Angelis N. Marginean A. Gadea D. R. Napoli M. Axiotis C. Rusu T. Martinez Zhou Xiaohong Wang Hualei Guo Wentao Liu Minliang Lei Xiangguo Guo Yingxiang 2004近代物理研究所和兰州重离子加速器实验室年报:英文版2004,,1:0
11First Observation of Signature Inversion in πh_(9/2) ■ vi_(13/2) Oblate Band in ^(190)Tl显示文摘The high-spin states of 190Tl, populated via the 160Gd(35Cl, 5n)190Tl fusion-evaporation reaction at 167 and 175 MeV beam energies, have been investigated by in-beam γ-ray spectroscopy. Based on the experiment measured results, together with references to the previous in-beam work and the studies of the 194Bi αdecay, the level scheme of 190Tl has been established as shown in Fig.1. Spins for the levels above the 300 keV 10-state were proposed from the measured DCO and γ-ray anisotropy results. It is the first time that spinXie Chengying Zhou Xiaohong Zhang Yuhu Guo Yingxiang Lei Xiangguo Song Litao Wang Hualei Liu Minliang Zheng Yong Guo Wentao Yu Haiping Luo Peng Wen Shuxian Zhu Lihua Wu Xiaoguang 2004近代物理研究所和兰州重离子加速器实验室年报:英文版2004,,1:0
12GaN/PMMA nanocomposite:synthesis and optical properties显示文摘High crystalline quality wurtzite-GaN nanoparticles, with diameters of about 11 nm, well dispersed in a poly-methyl methacrylate polymer matrix, were synthesized using a routine two-step route and were structurally and optically characterized.The as-prepared composite showed three broad overloading photoluminescence emission peaks with centers at 3.45, 3.29, and 3.10 eV.The 3.45 eV emission band is assigned to the recombination of the free exciton of GaN particles.The other two emission peaks possibly originate from the interfacial structure between the nanoparticles and polymer matrix or aggregation.The Fourier transform infrared(FTIR) spectrum further confirms the interfacial interaction that can be described as R-(C=O)-O-(GaN particle).LIU Weibin ZHOU Hualei FANG Chunying WANG Mingwen ZHANG Yingtang CHEN Ziyu CHE Ping 2010Rare Metals2010,29,2:0
13Signature Inversion in πh_(9/2)vi_(13/2) Oblate Bands in Doubly Odd Thallium Nuclei显示文摘The high-spin states of neutron-deficient doubly odd nucleus 190Tl have been investigated via the 160Gd (35Cl,5n)19Tl reaction at 167 and 175 MeV beam energies by using techniques of in-beamγ-ray spectroscopy. Measurements of X-γandγ-γ-t coincidences were performed with 12 BGO(AC)HPGe detectors. The detailed results of the present work have been reported.With the configuration and spin-parity as-Xie Chengying, Zhou Xiaohong, Zhang Yuhu, Guo Yingxiang, Lei Xiangguo, Song Litao Wang Hualei, Zheng Ypng, Liu Minliang and Guo Wentao 2005近代物理研究所和兰州重离子加速器实验室年报:英文版2005,,1:0
14Identification of a Low-spin Isomer in ^(176)Ir显示文摘Theβ+/EC decay of doubly odd 176Ir has been studied via the 146Nd(35Cl,5nγ) heavy ion fusion evaporation reaction at the Sector-Focusing Cyclotron (SFC) accelerator in the Institute of Modern Physics (IMP), Lanzhou. A 210 MeV 35C1 beam from the cyclotron entered a helium-filed target chamber,Wang Hualei, Zhang Yuhu, Zhou Xiaohong, Guo Yingxiang, Lei Xiangguo, Xu Shuwei Xie Yuanxiang,Liu Minliang, Zheng Yong, Xing Yebing, Xie Chengying, Song Litao Lou Peng, Yu Haiping, Guo Wentao,Ding Huajie and Niu Yanning 2005近代物理研究所和兰州重离子加速器实验室年报:英文版2005,,1:0
15Partical-core Coupling in ^(139)Ce显示文摘The high-spin states in 139Ce have been populated via the 130Te(12C, 3n) 139Ce reaction by using techniques of in-beamγ-ray spectroscopy. The 12C beam at 50 MeV energy was provided by the HI-13 tandem accelerator at the China Institute of Atomic Energy, Beijing. The 130Te target is an enriched metallic foil of about 1. 4 mg/cm2 thickness with a 9 mg/cm2 197Au backing to stop the recoiling nuclei. 14 BGO(AC)Hua Wei, Zhou Xiaohong, Zhang Yuhu, Guo Yingxiang, Lei Xiangguo Xie Chengying,Song Litao and Wang Hualei 2005近代物理研究所和兰州重离子加速器实验室年报:英文版2005,,1:0
16Genome-Wide Identification, Evolution and Expression Analyses of GA2ox Gene Family in Brassica napus L.显示文摘Gibberellin 2-oxidases(GA2ox)are important enzymes that maintain the balance of bioactive GAs in plants.GA2ox genes have been identified and characterized in many plants,but these genes were not investigated in Brassica napus.Here,we identified 31 GA2ox genes in B.napus and 15 of these BnaGA2ox genes were distributed in the A and C subgenomes.Subcellular localization predictions suggested that all BnaGA2ox proteins were localized in the cytoplasm,and gene structure analysis showed that the BnaGA2ox genes contained 2–4 exons.Phylogenetic analysis indicated that BnGA2ox family proteins in monocotyledons and dicotyledons can be divided into four groups,including two C_(19)-GA2ox and two C_(20)-GA2ox clades.Group 4 is a C_(20)-GA2ox Class discovered recently.Most BnaGA2ox genes had a syntenic relationship with AtGA2ox genes.BnaGA2ox genes in the C subgenome had experienced stronger selection pressure than genes in the A subgenome.BnaGA2ox genes were highly expressed in specific tissues such as those involved in growth and development,and most of them were mainly involved in abiotic responses,regulation of phytohormones and growth and development.Our study provided a valuable evolutionary analysis of GA2ox genes in monocotyledons and dicotyledons,as well as an insight into the biological functions of GA2ox family genes in B.napus.Yanhua Li Hualei Huang Youming Shi Shuqin Huang Tao Liu Changming Xiao Xiaoqing Tian Ping Zhao Xiaoyan Dai Taocui Huang Yan Zhou 2023Phyton-International Journal of Experimental Botany2023,92,3:0
17Transceiver designs with matrix-version water-filling architecture under mixed power constraints显示文摘In this paper, we investigate the multiple-input multiple-output(MIMO) transceiver design under an interesting power model named mixed power constraints. In the considered power model, several antenna subsets are constrained by sum power constraints while the other antennas are subject to per-antenna power constraints. This kind of transceiver designs includes both the transceiver designs under sum power constraint and per-antenna power constraint as its special cases. This kind of designs is of critical importance for distributed antenna systems(DASs) with heterogeneous remote radio heads(RRHs) such as cloud radio access networks(C-RANs). In our work, we try to solve the optimization problem in an analytical way instead of using some famous software packages e.g., CVX or Se Du Mi. In our work, to strike tradeoffs between performance and complexity, both iterative and non-iterative solutions are proposed. Interestingly the non-iterative solution can be interpreted as a matrix-version water-filling solution extended from the well-known and extensively studied vector version. Finally, simulation results demonstrate the accuracy of our theoretical results.Chengwen XING Zesong FEI Yiqing ZHOU Zhengang PAN Hualei WANG 2016Science China(Information Sciences)2016,59,10:0
18Preparation of Y^(3+)-doped Bi-_(2)MoO_(6) nanosheets for improved visible-light photocatalytic activity: Increased specific surface area, oxygen vacancy formation and efficient carrier separation显示文摘Although Bi_(2)Mo O_(6)(BMO) has recently received extensive attention, its visible-light photocatalytic activity remains poor due to its limited photoresponse range and low charge separation efficiency. In this work, a series of visible-light-driven Y^(3+)-doped BMO(Y-BMO) photocatalysts were synthesized via a hydrothermal method. Degradation experiments on Rhodamine B and Congo red organic pollutants revealed that the optimal degradation rates of Y-BMO were 4.3 and 5.3 times those of pure BMO, respectively. The degradation efficiency of Y-BMO did not significantly decrease after four cycle experiments. As a result of Y^(3+)doping, the crystal structure of BMO changed from a thick layer structure to a thin flower-like structure with an increased specific surface area. X-ray photoelectron spectroscopy showed the presence of highintensity peaks for the O 1s orbital at 531.01 and 530.06 eV, confirming the formation of oxygen vacancies in Y-BMO. Photoluminescence(PL) and electrochemical impedance spectroscopy measurements revealed that the PL intensity and interface resistances of composites decreased significantly, indicating reduced electron–hole pair recombination. This work provides an effective way to prepare high-efficiency Bibased photocatalysts by doping rare earth metal ions for improved photocatalytic performance.Hong Qiu Shujing Liu Xiaohui Ma Yajie Li Yueyan Fan Wenjun Li Hualei Zhou 2023International Journal of Minerals,Metallurgy and Materials2023,30,9:0
19Preferentially selective extraction of lithium from spent LiCoO_(2)cathodes by medium-temperature carbon reduction roasting显示文摘Lithium recovery from spent lithium-ion batteries(LIBs)have attracted extensive attention due to the skyrocketing price of lithium.The medium-temperature carbon reduction roasting was proposed to preferential selective extraction of lithium from spent Li-CoO_(2)(LCO)cathodes to overcome the incomplete recovery and loss of lithium during the recycling process.The LCO layered structure was destroyed and lithium was completely converted into water-soluble Li2CO_(3)under a suitable temperature to control the reduced state of the cobalt oxide.The Co metal agglomerates generated during medium-temperature carbon reduction roasting were broken by wet grinding and ultrasonic crushing to release the entrained lithium.The results showed that 99.10%of the whole lithium could be recovered as Li2CO_(3)with a purity of 99.55%.This work provided a new perspective on the preferentially selective extraction of lithium from spent lithium batteries.Daixiang Wei Wei Wang Longjin Jiang Zhidong Chang Hualei Zhou Bin Dong Dekun Gao Minghui Zhang Chaofan Wu 2024International Journal of Minerals,Metallurgy and Materials2024,31,2:0
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