Improved H2 production of Pt-TiO2/g-C3N4-MnOx composites by an efficient handling of photogenerated charge pairs

被引：108
|
作者：
Obregon, S. [1 ]
Colon, G. [1 ]
机构：
[1] Univ Seville, CSIC, Ctr Mixto, Inst Ciencia Mat Sevilla, Seville 41092, Spain
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 144卷
关键词：
Pt-TiO2; g-C-3; N-4; MnOx; Phenol; H-2; production; PHOTOCATALYTIC APPLICATIONS; HYDROGEN-PRODUCTION; TIO2; WATER; NANOSHEETS; CATALYSTS;
D O I：
10.1016/j.apcatb.2013.07.034
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Pt-TiO2/g-C3N4-MnOx hybrid structures are synthesized by means of a simple impregnation method of Pt-TiO2 and g-C3N4-MnOx. From the wide structural and surface characterization we have stated that TiO2/g-C3N4 composites are formed by an effective covering of g-C3N4 by TiO2. The modification of composite by Pt and/or MnOx leads to improved photoactivities for phenol degradation reaction. Moreover, enhanced photoactivities have been obtained for composites systems for H-2 evolution reaction. The notably photocatalytic performance obtained was related with the efficient separation of charge pairs in this hybrid heterostructure. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：775 / 782
页数：8
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