In Situ Synthesis of gamma-AlOOH and Synchronous Adsorption Separation of V(V) from Highly Concentrated Cr(VI) Multiplex Complex solutions
文献类型:期刊论文
作者 | Zhang, Hailin1,2; Li, Ping1; Wang, Zheming3; Zhang, Xin3; Zheng, Shili1; Zhang, Yi1 |
刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING |
出版日期 | 2017-08-01 |
卷号 | 5期号:8页码:6674-6681 |
ISSN号 | 2168-0485 |
关键词 | Green Separation Boehmite Chromate Solutions In Situ Synthesis And Synchronous Adsorption Hazardous Residues Reduction |
DOI | 10.1021/acssuschemeng.7b00918 |
文献子类 | Article |
英文摘要 | Boehmite (gamma-AlOOH) was synthesized to selectively adsorb V(V) from K2CrO4-KVO3-H2O solutions with highly concentrated Cr(VI) and low concentration V(V). The synthesized gamma-AlOOH has a BET surface area of 433.2 m(2)/g and an average pore size of 3.5 nm. It possesses a maximum adsorption capacity of V(V) of 1.53 mmol/g from K2CrO4-KVO3-H2O solutions. The adsorption of V(V) onto gamma-AlOOH follows the Langmuir isotherm model and pseudo-second-order kinetics equation by forming inner sphere complexes while the Cr(VI) adsorption forms both inner-sphere and outer-sphere chromate complexes depending on solution pH. The gamma-AlOOH was further synthesized in situ by adding HNO3 into the K2CrO4-KAlO2-KVO3-H2O solutions and then used for synchronous adsorption of V(V) and Cr(VI), resulting in increased adsorption capacity of V(V) of 2.88 mmol/g and decreased adsorption capacity of Cr(VI) to 0.073 mmol/g, respectively. In the latter process, adsorption pH values were adjustable, and adsorption reached equilibrium instantaneously, supporting a novel in situ synthesis and adsorption integration strategy with adjustable surface charge of adsorbent and disappearance of diffusion effect. |
WOS关键词 | Goethite Alpha-feooh ; Activated Carbon ; Aqueous-solution ; Aluminum-oxide ; Chromium ; Boehmite ; Vanadium ; Extraction ; Chromate ; Removal |
WOS研究方向 | Chemistry ; Engineering |
语种 | 英语 |
WOS记录号 | WOS:000407410900036 |
资助机构 | National Natural Science Foundation of China(51574212 ; Major State Basic Research Development Program of China(2013CB632605) ; U1403195) |
源URL | [http://ir.ipe.ac.cn/handle/122111/23187] |
专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Nat Engn Lab Hydromet Cleaner Prod Technol, 1 North Second St, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA |
推荐引用方式 GB/T 7714 | Zhang, Hailin,Li, Ping,Wang, Zheming,et al. In Situ Synthesis of gamma-AlOOH and Synchronous Adsorption Separation of V(V) from Highly Concentrated Cr(VI) Multiplex Complex solutions[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(8):6674-6681. |
APA | Zhang, Hailin,Li, Ping,Wang, Zheming,Zhang, Xin,Zheng, Shili,&Zhang, Yi.(2017).In Situ Synthesis of gamma-AlOOH and Synchronous Adsorption Separation of V(V) from Highly Concentrated Cr(VI) Multiplex Complex solutions.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(8),6674-6681. |
MLA | Zhang, Hailin,et al."In Situ Synthesis of gamma-AlOOH and Synchronous Adsorption Separation of V(V) from Highly Concentrated Cr(VI) Multiplex Complex solutions".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.8(2017):6674-6681. |
入库方式: OAI收割
来源:过程工程研究所
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