Photo-degradation organic dyes by Sb-based organic-inorganic hybrid ferroelectrics  

作　　者：Yuying Wu Zhangran Gao Xiaofan Sun Hongling Cai Xiaoshan Wu 

机构地区：[1]Collaborative Innovation Center of Advanced Microstructures,Laboratory of Solid State Microstructures and School of Physics,Nanjing University,Nanjing 210093,China

出　　处：《Journal of Environmental Sciences》2021年第3期145-155,共11页环境科学学报（英文版）

基　　金：supported by the National Natural Science Foundations of China(Nos.11874200 and 11574138);the TopNotch Young Talents Program of China,the National Key R&D Program of China(No.2016YFA0201104);Dengfeng Project B of Nanjing University;Open Fund of Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education(No.INMD-2020M06)。

摘　　要：The organic-inorganic hybrid halide compounds have emerged as one of the most promising photoelectric material for their superior optoelectronic properties and hold great prospects for renewable energy substitutes and environmental protection as photocatalysis.Here,we report the optical properties of the Sb-based organic-inorganic hybrid ferroelectric materials:pyridine-4-aminium tetrachloroantimonate((C_(5)H_(7)N_(2))SbCl_(4),sample 1),piperidin-1-aminium tetrachloroantimonate((C_(5)H_(13)N_(2))SbCl_(4),sample 2)and tris(trimethylammonium)nonachlorodiantimonate(((CH_(3))_(3)NH)_(3)Sb_(2)Cl_(9),sample 3),which are a kind of exploited efficient photocatalysts.Samples 2 and 3 exhibit distinct photoelectric respond,which are mainly ascribed to their minor narrow band-gap compared with sample 1.For the ferroelectrics,the intrinsic of spontaneous polarization of sample 3 at room temperature is favourable for the separation of photogenerated electrons and holes within the photorespond process.Moreover,sample 3 shows the highest efficiency of photo-decomposed Rhodamine B(90.2%within 80 min)and Methyl Orange(MO)(97.4%within 50 min),thanks to the photo-excited electrons and holes promoting the formation of oxidative radical species during the photo-redox progress.These findings prove that the development of a novel Sbbased organic-inorganic hybrid halide compounds with good stability in the degradation of organic dyes paves a way to designing new photocatalyst.

关 键 词：Organic-inorganic hybrid halide compounds PHOTOELECTRIC Photogenerated electrons and holes PHOTO-DEGRADATION 

分 类 号：X703[环境科学与工程—环境工程]