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The vanadate adsorption on a mesoporous boehmite and its cleaner production application of chromate
Alternative TitleGreen Chem.
Li, Ping1,2; Zheng, Sili1,2; Qing, Penghui1,2; Chen, Yongan1,2; Tian, Lei1,2; Zheng, Xiaodan1,2; Zhang, Yi1,2
2014-09-01
Source PublicationGREEN CHEMISTRY
ISSN1463-9262
Volume16Issue:9Pages:4214-4222
AbstractA 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.; 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.
KeywordVanadium Metal Aluminum Gibbsite Recovery Removal Surface Water Xps
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c4gc00897a
URL查看原文
Indexed BySCI
Language英语
WOS KeywordVANADIUM ; METAL ; ALUMINUM ; GIBBSITE ; RECOVERY ; REMOVAL ; SURFACE ; WATER ; XPS
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000341282200023
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11649
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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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