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	The vanadate adsorption on a mesoporous boehmite and its cleaner production application of chromate
	Li, Ping1,2; Zheng, Sili1,2; Qing, Penghui1,2; Chen, Yongan1,2; Tian, Lei1,2; Zheng, Xiaodan1,2; Zhang, Yi1,2
刊名	GREEN CHEMISTRY
	2014-09-01
卷号	16期号:9页码:4214-4222
关键词	VANADIUM METAL ALUMINUM GIBBSITE RECOVERY REMOVAL SURFACE WATER XPS
ISSN号	1463-9262
其他题名	Green Chem.
中文摘要	A mesoporous boehmite (gamma-AlOOH) synthesis and vanadate (V(v)) ion adsorption and desorption on the mesoporous gamma-AlOOH were investigated. The synthesis and adsorption studies showed that the mesoporous gamma-AlOOH with a BET surface of 442 m(2) g(-1) and a pore size of 2.75 nm possessed a maximum V(v) ion adsorption capacity of 3.28 mmol g(-1). The adsorption mechanism results showed that the mesoporous gamma-AlOOH liberated surface hydroxyls to form coordinatively unsaturated Al-VI centres to adsorb V(v) ions which connected oxygen of the coordinatively unsaturated Al-VI centres with mono-oxo, V=O terminal double bonds. The desorption studies showed that the V(v) ions could be desorbed by NH3 center dot H2O easily. In the cleaner production application of chromate, the mesoporous gamma-AlOOH was synthesized in the Na2CrO4-NaAlO2-NaVO3-H2O solutions of the chromate production and then in situ adsorbed the V(v) ions. The results showed that the V(v) ions were removed effectively, so that the highly carcinogenic CaCrO4 containing Ca(VO3)(2) residue which was obtained by the typical process of chromate production was eliminated. Therefore, green separation of V(v) ions to reduce waste pollution ensuring economy and feasibility could be expected.
英文摘要	A mesoporous boehmite (gamma-AlOOH) synthesis and vanadate (V(v)) ion adsorption and desorption on the mesoporous gamma-AlOOH were investigated. The synthesis and adsorption studies showed that the mesoporous gamma-AlOOH with a BET surface of 442 m(2) g(-1) and a pore size of 2.75 nm possessed a maximum V(v) ion adsorption capacity of 3.28 mmol g(-1). The adsorption mechanism results showed that the mesoporous gamma-AlOOH liberated surface hydroxyls to form coordinatively unsaturated Al-VI centres to adsorb V(v) ions which connected oxygen of the coordinatively unsaturated Al-VI centres with mono-oxo, V=O terminal double bonds. The desorption studies showed that the V(v) ions could be desorbed by NH3 center dot H2O easily. In the cleaner production application of chromate, the mesoporous gamma-AlOOH was synthesized in the Na2CrO4-NaAlO2-NaVO3-H2O solutions of the chromate production and then in situ adsorbed the V(v) ions. The results showed that the V(v) ions were removed effectively, so that the highly carcinogenic CaCrO4 containing Ca(VO3)(2) residue which was obtained by the typical process of chromate production was eliminated. Therefore, green separation of V(v) ions to reduce waste pollution ensuring economy and feasibility could be expected.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	VANADIUM ; METAL ; ALUMINUM ; GIBBSITE ; RECOVERY ; REMOVAL ; SURFACE ; WATER ; XPS
收录类别	SCI
原文出处	://WOS:000341282200023
语种	英语
WOS记录号	WOS:000341282200023
公开日期	2014-11-02
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/11649]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Ping,Zheng, Sili,Qing, Penghui,et al. The vanadate adsorption on a mesoporous boehmite and its cleaner production application of chromate[J]. GREEN CHEMISTRY,2014,16(9):4214-4222.
APA	Li, Ping.,Zheng, Sili.,Qing, Penghui.,Chen, Yongan.,Tian, Lei.,...&Zhang, Yi.(2014).The vanadate adsorption on a mesoporous boehmite and its cleaner production application of chromate.GREEN CHEMISTRY,16(9),4214-4222.
MLA	Li, Ping,et al."The vanadate adsorption on a mesoporous boehmite and its cleaner production application of chromate".GREEN CHEMISTRY 16.9(2014):4214-4222.

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