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

被引：20
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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