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[期刊论文]

Hydrothermal synthesis of MSn(OH)6 (M=Co, Cu, Fe, Mg, Mn, Zn) and their photocatalytic activity for the destruction of gaseous benzene

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author:

Huang, Danwei (Huang, Danwei.) [1] | Fu, Xianliang (Fu, Xianliang.) [2] | Long, Jinlin (Long, Jinlin.) [3] | Unfold

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EI

Abstract:

Hexahydroxy-stannates (MSn(OH)6) are promising candidates for photocatalytic degradation of highly stable aromatic compounds. A series of MSn(OH)6 (MHS, M=Co, Cu, Fe, Mg, Mn, Zn) was synthesized by a hydrothermal method in this work. The effects of the hydrothermal temperature, time and the solution pH on the formation of MHS were investigated. The structures, yields, optical properties, and morphologies of the products were then studied. Photocatalytic degradation of gaseous benzene (C6H6) on the prepared MHS was investigated and compared with P25 (TiO2). The results indicate the optimal preparation condition of MHS is performing the hydrothermal treatment at a mild temperature (90-120°C) in a weak base solution (pH 10-11). Only MgHS and ZnHS exhibit a significant and stable activity for the destruction of C6H6 and the efficiencies are substantially higher than that of P25. The hydroxyl structure accounts for their high performance, which facilitates the formation of the active radicals (OH and O2-) and suppresses the deposition of the stable byproducts. Due to the restriction of the band structures, the degradation of C6H6 cannot be achieved on the colored samples (M=Co, Cu, Fe, and Mn). Based on the radicals analyses results, the degradation route of C6H6 on and the formation route of the stable intermediates on the samples were finally proposed. © 2015 Elsevier B.V.

Keyword:

Benzene Biodegradation Hydrothermal synthesis Magnesium compounds Optical properties Photocatalysis Photocatalytic activity Synthesis (chemical) Titanium dioxide Zinc compounds

Community:

  • [ 1 ] [Huang, Danwei]College of Chemistry and Material Science, Huaibei Normal University, Huaibei, Anhui; 235000, China
  • [ 2 ] [Fu, Xianliang]College of Chemistry and Material Science, Huaibei Normal University, Huaibei, Anhui; 235000, China
  • [ 3 ] [Fu, Xianliang]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 4 ] [Long, Jinlin]Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 5 ] [Jiang, Xiaoliang]College of Chemistry and Material Science, Huaibei Normal University, Huaibei, Anhui; 235000, China
  • [ 6 ] [Chang, Le]College of Chemistry and Material Science, Huaibei Normal University, Huaibei, Anhui; 235000, China
  • [ 7 ] [Meng, Sugang]College of Chemistry and Material Science, Huaibei Normal University, Huaibei, Anhui; 235000, China
  • [ 8 ] [Chen, Shifu]College of Chemistry and Material Science, Huaibei Normal University, Huaibei, Anhui; 235000, China
  • [ 9 ] [Chen, Shifu]Department of Chemistry, Anhui Science and Technology University, Fengyang, Anhui; 233100, China

Reprint 's Address:

  • [fu, xianliang]research institute of photocatalysis, state key laboratory of photocatalysis on energy and environment, fuzhou university, fuzhou; 350002, china;;[fu, xianliang]college of chemistry and material science, huaibei normal university, huaibei, anhui; 235000, china

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Source :

Chemical Engineering Journal

ISSN: 1385-8947

Year: 2015

Volume: 269

Page: 168-179

5 . 3 1

JCR@2015

1 3 . 4 0 0

JCR@2023

ESI HC Threshold:183

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

30 Days PV: 1

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