Photocatalytic overall water splitting over an open-framework gallium borate loaded with various cocatalysts
Photocatalytic overall water splitting over an open-framework gallium borate loaded with various cocatalysts
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负载各种助催化剂的开放框架硼酸镓上的光催化整体水分解
DOI：
10.1016/j.catcom.2015.08.009
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发表时间：
2015-11-05
影响因子：
3.7
通讯作者：
Yang, Tao
中科院分区：
文献类型：
--
作者：
Ma, Biao;Cong, Rihong;Yang, Tao
我们对开放框架硼酸镓 Ga-PKU-1 的光催化能力进行了系统研究。据报道，它对水的还原或氧化具有内在活性，但需要牺牲试剂。这里，CoOx、RuOx、Pt、Au、NiOx 和 Ag 作为助催化剂的负载大大增强了催化活性，最终导致 1 wt.% RuOx-1wt.% Pt 负载的 Ga-PKU-1 整体水分解成化学计量的 H-2 (28.4 mu mol/h/g) 和 O-2 (14.5 mu mol/h/g)。经过三个循环的光催化水分解实验，它给出了恒定的 H2 析出速率，且催化剂没有降解。 (C) 2015 Elsevier B.V. 保留所有权利。
We present a systematic investigation on the photocatalytic ability of an open-framework gallium borate, Ga-PKU-1. It was reported to be intrinsically active for water reduction or oxidation, however, acquiring sacrificial reagents. Here the loading of CoOx, RuOx, Pt, Au, NiOx and Ag as cocatalysts greatly enhanced the catalytic activity, which eventually lead to overall water splitting into stoichiometric H-2 (28.4 mu mol/h/g) and O-2 (14.5 mu mol/h/g) for 1 wt.% RuOx-1wt.% Pt loaded Ga-PKU-1. After three cycles of photocatalytic water splitting experiments, it gave the constant H2 evolution rate with no degradation of the catalyst. (C) 2015 Elsevier B.V. All rights reserved.