High-Performance Photocatalytic H2 Production Using a Binary Cu/ TiO2/SrTiO3 Heterojunction

被引：16

作者：

Gonzalez-Tejero, Marcos ^{[1
]}

Villachica-Llamosas, Joyce G. ^{[2
]}

Ruiz-Aguirre, Alba ^{[2
]}

Colon, Gerardo ^{[1
]}

机构：

[1] CSIC, Ctr Mixto Univ Sevilla, Inst Ciencia Mat Sevilla, Seville 41092, Spain

[2] CIEMAT Plataforma Solar Almeria, Almeria 04200, Spain

来源：

ACS APPLIED ENERGY MATERIALS | 2023年 / 6卷 / 07期

关键词：

photocatalysis; hydrogen; strontium titanate; TiO2; heterojunction; H-2; EVOLUTION; HETEROGENEOUS PHOTOCATALYSIS; SRTIO3; TIO2; NANOPARTICLES; COMPOSITES; IRRADIATION; BAND;

D O I：

10.1021/acsaem.3c00219

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：

Cu/TiO2/SrTiO3 hybrid structures have been synthesized by the simple impregnation method from Cu/TiO2 and SrTiO3 systems. The structural and surface characterization stated that Cu/TiO2/SrTiO3 composites form an effective covering of SrTiO3 by Cu/TiO2. The heterostructured catalysts lead to an outstanding improved photoactivity for hydrogen production from methanol photoreforming that would be related with the efficient separation of charge pairs favored by the Cu/ TiO2/SrTiO3 heterojunction. The best photoproduction is attained for the 30 wt % SrTiO3 heterojunction showing 81.7 mmol/g H2 after 6 h (leading to an apparent quantum yield of ca 1%), 1.7 times higher than that of bare Cu/TiO2.

引用

页码：4007 / 4015

页数：9

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