Synthesis and Photocatalytic Behavior of Layered Double Hydroxide Pillared by Paratungstate A Ion, Mg12Al6(OH)36(W7O24) [Closed Circle] 4H2O

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作者：
Guo, Yi-Hang
Li, Dan-Feng
Hu, Chang-Wen
Wang, Yong-Hui
Wang, En-Bo
Yue, Bin
机构：
[1] Inst. of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
[2] Department of Chemistry, Fudan University, Shanghai 200032, China
来源：
Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities | 2001年 / 22卷 / 09期
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摘要：
Layered double hydroxide pillared by Paratungstate A ion, Mg12Al6(OH)36(W7O24) [Closed Circle] 4H2O, was prepared via anion exchange reaction of the synthetic precursor, Mg1Al2(OH)12TA [Closed Circle] xH2O(TA2-= terephthalate), and W7O6-24 ion. Trace aqueous organochlorine pesticide, hexachlorocyclohexane, was totally degraded and mineralized into CO2 and HCl by irradiating a suspension of Mg12Al6(OH)36(W7O24) [Closed Circle] 4H2O and HCH in the near-UV area. The model and pathway for the photocatalytic degradation of HCH on the Mg12Al6(OH)36(W7O24) [Closed Circle] 4H2O were proposed, indicating that the interlayer space is the reaction field, and that photogeneration of OH [Closed Circle] radicals are responsible for degradation pathway.
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