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

• 作者: Yuying Wu Zhangran Gao Xiaofan Sun Hongling Cai Xiaoshan Wu
• 来源期刊: 环境科学学报（英文版）
• 年，卷（期）: 2021,（3）
• 页码范围: 145-155
• 页数: 11页
• 语种: 英文

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 ma-terials:pyridine-4-aminium tetrachloroantimonate((C5H7N2)SbCl4,sample 1),piperidin-1-aminium tetrachloroantimonate((C5H13N2)SbCl4,sample 2)and tris(trimethylammonium)nonachlorodiantimonate(((CH3)3NH)3Sb2Cl9,sample 3),which are a kind of exploited ef-ficient 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 fer-roelectrics,the intrinsic of spontaneous polarization of sample 3 at room temperature is favourable for the separation of photogenerated electrons and holes within the photore-spond process.Moreover,sample 3 shows the highest efficiency of photo-decomposed Rho-damine 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 Sb-based organic-inorganic hybrid halide compounds with good stability in the degradation of organic dyes paves a way to designing new photocatalyst.