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Studies on the synthesis and photocatalytic CO2 reduction of Pt-PANI-TiO2 and MoO3-x-TiO2

Abstract

本学位论文主要针对Pt−PANI−TiO2和MoO3-x-TiO2复合催化剂上CO2光催化还原反应,从催化材料的设计合成、催化性能、结构表征和反应机理等方面展开系统的研究和讨论。 论文第一部分主要以TiO2作为半导体基底,通过在其表面修饰负载聚苯胺(PANI)制备了PANI-TiO2催化剂,在气-固反应模式下,其表现出较好的光催化还原CO2的性能。此外,Pt助剂的修饰能有效地促进光生载流子的分离,因此显著提高催化剂的光催化性能。本文针对Pt-PANI-TiO2催化剂体系进行了系统的研究。分别考察了Pt助剂负载量,粒径大小,以及落位情况等因素对催化剂光催化还原CO2性能...This dissertation focuses on studying the CO2 photoreductionover Pt−PANI−TiO2 and MoO3-x-TiO2 catalysts. The synthesis process, catalytic performances, structures of the catalysts and reaction mechanisms have been investigated and discussed in detail. TiO2was chosen as the typtic semiconductor substrate in this paper.It was found that the activity of photocatalytic reduction of CO2 of...学位:理学博士院系专业:化学化工学院_物理化学学号:2052012015351

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