Visible-light-driven heterojunction photocatalysts based on g-C3N4 decorated La2Ti2O7: Effective transportation of photogenerated carriers in this heterostructure

被引：21

作者：

Wang, Fangzhi ^{[1
]}

Li, Wenjun ^{[1
]}

Gu, Shaonan ^{[1
]}

Li, Hongda ^{[1
]}

Liu, Xintong ^{[1
]}

Ren, Chaojun ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Beijing Key Lab Sci & Applicat Funct Mol & Crysta, Beijing 100083, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 96卷

基金：

中国国家自然科学基金;

关键词：

g-C3N4/La2Ti2O7; Nanocomposites; Effective transportation; Visible light; Photocatalysis; GRAPHITIC CARBON NITRIDE; COMPOSITE PHOTOCATALYST; DEGRADATION; NANOCOMPOSITES; IRRADIATION; PERFORMANCE; FABRICATION; POLLUTANTS; NANOSHEETS;

D O I：

10.1016/j.catcom.2017.04.004

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：

Lanthanide titanate (La2Ti2O7) with strong reduction-oxidation ability has been regarded as a new promising photocatalyst. To boost its photocatalytic activity, g-C3N4/La2Ti2O7 composites were designed and constructed. The results reveal that La2Ti2O7 nanosheets were well attached to the surface of g-C3N4 and the composites had good visible-light absorption properties. Significantly, compared to pure La2Ti2O7 and g-C3N4, the composites exhibited outstanding photocatalytic performance under visible-light irradiation. The enhanced photocatalytic activity could be derived from the effective transportation of photogenerated electrons from g-C3N4 to La2Ti2O7. The electrons with high reduction ability can generate more active species to participate in the photodegradation reaction.

引用

收藏

页码：50 / 53

页数：4

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