Visible light induced dye-sensitized photocatalytic hydrogen production over platinized TiO2 derived from decomposition of platinum complex precursor
Visible light induced dye-sensitized photocatalytic hydrogen production over platinized TiO2 derived from decomposition of platinum complex precursor
复制标题
铂络合物前驱体分解产生的铂化 TiO2 可见光诱导染料敏化光催化产氢
DOI：
10.1016/j.ijhydene.2013.02.121
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发表时间：
2013-08-21
影响因子：
7.2
通讯作者：
Ma, Wanhong
中科院分区：
文献类型：
--
作者：
Li, Jing;Yue, E.;Ma, Wanhong
以Pt（dcbpy）Cl-2（dcbpy = 4，4 '-二羧基-2，2'-联吡啶）为前驱体，通过完全分解制得Pt/TiO 2（简称C-Pt/TiO 2），用于可见光光催化。对于染料敏化制氢实验，光催化剂被Ru（2，2 '-联吡啶-4，4'-二羧酸）（2）（NCS）（2）（N3染料）和Ru（2，2 '-联吡啶-4，4'-二羧酸）（4，4 '-二壬基-2，2'-联吡啶）（NCS）（2）（Z907染料）敏化以在牺牲电子供体三乙醇胺（TEA）存在下诱导析氢。结果表明，C-Pt/TiO 2比传统的光化学沉积法制备的P-Pt/TiO 2（P-Pt/TiO 2）具有更高的催化活性。在可见光区的光催化降解实验中也证实了C-Pt/TiO 2具有较好的光催化活性。通过透射电子显微镜（TEM）研究证实，Pt（dcbpy）Cl-2光沉积生成的小尺寸、高分散的Pt粒子有效地进行了粒子间电子转移，从而提高了催化活性。版权所有（C）2013，氢能出版物有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
Pt/TiO2 derived from complete decomposition of the surface-anchored Pt(dcbpy)Cl-2 (dcbpy = 4,4'-dicarboxy-2,2'-bipyridine) precursor (denoted as C-Pt/TiO2) was prepared to serve as photocatalyst in visible light region. For dye-sensitized hydrogen production experiments, the photocatalyst was sensitized by Ru(2,2'-bipyridine-4,4'-dicarboxylic)(2)(NCS)(2) (the N3 dye) and Ru(2,2'bipyridy1-4,4'-dicarboxylic) (4,4'- dinony1-2,2'bipyridine) (NCS)(2) (the Z907 dye) to induce hydrogen evolution in the presence of sacrificial electron donor, triethanolamine (TEA). The hydrogen generation results showed that C-Pt/TiO2 was found to be a much more active photocatalyst when compared to P-Pt/TiO2, prepared by conventional method of photochemical deposition of H2PtCl6 (denoted as P-Pt/TiO2). For further investigation, the photodegradation experiments in visible region were also confirmed the better photocatalytic activity of C-Pt/TiO2. The enhanced catalytic activity is due to efficient interparticle electron transfer with the small-size and high-disperse platinum particles generated from photodeposition of Pt(dcbpy)Cl-2, which was verified by the transmission electron microscopy (TEM) measurement. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.