期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 42, 期 44, 页码 27043-27054出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2017.09.047
关键词
Single Pt atoms; g-C3N4 nanosheets; Photoatalytic H-2 evolution; Photoatalytic oxidation
资金
- Science and Technology Support Program of Jiangsu Province [BE2014713]
- Industry-Academia Cooperation Innovation Fund Projects of Jiangsu Province [BY2014004-10]
- Science and technology project of Nanjing [201306012]
- Jiangsu Province Scientific and Technological Achievements into a Special Fund Project [BA2015062]
- Priority Academic Program Development of Jiangsu Higher Education of Jiangsu Higher Education Institutions
- Graduate student training innovation project of jiangsu province [KYZZ16_0193]
Generally, the outstanding photoactivity of the semiconductor photocatalyst often attributes to the loaded Pt or H2PtCl6 solution. However, the utilization efficiency of Pt is relatively low due to the agglomeration during the loading or photocatalytic reaction process. Here, we have successfully synthesized the single Pt atoms supported on g-C3N4 nanosheets (Pt-SA-CN) with dilute amounts of Pt (<0.3 wt% Pt) by a facile incipient wetness impregnation. The single Pt atoms are uniformly embedded into the g-C3N4 nanosheets via Pt-N coordination bonds. Surprisingly, with the introduction of single Pt atoms, the Pt-SACN photocatalysts exhibit both higher photocatalytic H-2 evolution and photo-oxidation of NO to NO3. Especially, the PtO2-SA-CN photocatalyst displays the most excellent photo catalytic performance in the series of Pt-SA-CN samples, and even higher than that of the g-C3N4 nanosheets in H2PtCl6 (1 wt% Pt) solution and the Pt loaded on g-C3N4 surface by photodeposition method. The utilization efficiency of Pt has a considerable enhancement and the photoactivity is also improved. The reasons for the enhanced photocatalytic performance of Pt-SA-CN samples are also further discussed. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据