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Activating ZnO nanorod photoanodes in visible light by Cu ion implantation

ISSN号：1998-01241998-0000
期刊名称：Nano Research
时间：2014.3
页码：353-364
分类：O621.254[理学—有机化学;理学—化学] TF125.8[冶金工程—粉末冶金;冶金工程—冶金物理化学]
作者机构：International Research Center for Renewable Energy, State KeyLaboratory of Multiphase Flow in Power Engineering, Xi'anJiaotong University, Xi'an 710049, China
相关基金：This work was supported by the National Natural Science Foundation of China （51323011 and 51236007）, the Program for New Century Excellent Talents in University （NCET-13- 0455）, the Natural Science Foundation of Shaanxi Province （2014KW07-02）, the Natural Science Foundation of Jiangsu Province （BK20141212） and the Nano Research Program of Suzhou City （ZXG201442 and ZXG2013003）. Shaohua Shen was supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China （201335）, and the Fundamental Research Funds for the Central Universities.
相关项目：基于载流子强化利用的氧化物纳米阵列光电极的设计与改性

关键词： COFE2O4, NIFE2O4, 催化析氢, 铁氧体, 改性剂, 氮化碳, 石墨相, 氧化还原反应, Graphitic carbon nitride , FerritesPhotocatalytic water splitting , Solar hydrogenconversion

中文摘要：

催化氧化还原作用反应作为在 photocatalytic 氢进化的基本步骤具有主要重要性的费用搬运人分离和表面。在这研究，这两二在 graphitic 碳氮化物上在 photocatalytic 氢进化处理(g-C ₃ N ₄) 极大地与地球丰富的铁酸盐被支持(公司， Ni ) Fe ₂ O ₄ 修正。CoFe ₂ O ₄ 进一步被表明是为 g-C ₃ N ₄ 作为与 NiFe ₂ O ₄, 由于更有效的费用搬运人转移以及优异表面氧化催化活动。什么时候一起装载 CoFe ₂ O ₄和减少的氢生产 electrocatalyst 磅到 g-C ₃ N ₄,获得的 Pt/g-C ₃ N ₄/CoFe₂完成的 O ₄光催化剂可见光(?>? 420 ? nm )3.5倍高于 Pt/g-C ₃ N ₄,与到达 3.35 的明显的量产量?在 420 点的%? nm 。

英文摘要：

The charge cartier separation and surface catalytic redox reactions are of primary importance as elementary steps in photocatalytic hydrogen evolution. In this study, both of these two processes in photocatalytic hydrogen evolution over graphitic carbon nitride （g-C3N4） were greatly promoted with the earth-abundant ferrites （Co, Ni）Fe2O4 modification. CoFe2O4 was further demonstrated to be a better modifier for g-C3N4 as compared to NiFe2O4, due to the more efficient charge carrier transfer as well as superior surface oxidative catalytic activity. When together loading CoFe2O4 and reductive hydrogen production electrocatalyst Pt onto g-C3N4, the obtained Pt/g-C3N4/CoFe2O4 photocatalyst achieved visible-light （2 〉 420 nm） hydrogen production rate 3.5 times as high as Pt/g-C3N4, with the apparent quantum yield reaching 3.35 % at 420 nm.