A novel Z-scheme g- C3N4/LaCoO3 heterojunction with enhanced photocatalytic activity in degradation of tetracycline hydrochloride

被引：82

作者：

Guo, Jifeng ^{[1
]}

Li, Pengtao ^{[1
]}

Yang, Zhao ^{[1
]}

机构：

[1] Changan Univ, Key Lab Subsurface Hydrol & Ecol Arid Areas, Minist Educ, Sch Environm Sci & Engn, Xian 710054, Shaanxi, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2019年 / 122卷

关键词：

G-C3N4/LaCoO3; composite; Photocatalyst; Z-scheme; Tetracycline hydrochloride (TC) degradation; HYDROGEN-PRODUCTION; FABRICATION; COMPOSITES; EFFICIENCY; MECHANISM; REMOVAL;

D O I：

10.1016/j.catcom.2019.01.022

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：

A novel Z-scheme g-C3N4/LaCoO3 photocatalyst was prepared by a facial mixing-heating and precipitation method. Doping g-C3N4 on LaCoO3, the heterojunction exhibits excellent photocatalytic performance and stability compared with bare LaCoO3 in the degradation of tetracycline hydrochloride (TC). The enhanced photocatalytic activity are attributed to the high separation efficiency of electron-hole pairs by the formation of Z-scheme heterojunction structure. The photocatalytic degradation rate of TC is up to 92% and the kinetic rate constant (k) of the optimal g-C3N4/LaCoO3 composite is about 14.5 times and 2.3 times of that of bare LaCoO3 and g-C3N4, respectively.

引用

页码：63 / 67

页数：5

共 33 条

[1] Synthesis and measurement of structural and magnetic properties of K-doped LaCoO3 perovskite materials [J].

Bellakki, Manjunath B. ;

Madhu, C. ;

Greindl, Tobias ;

Kohli, Sandeep ;

McCurdy, Patrick ;

Manivannan, V. .

RARE METALS, 2010, 29 (05) :491-500

[2] Innovative W-doped titanium dioxide anchored on clay for photocatalytic removal of atrazine [J].

Belver, C. ;

Han, C. ;

Rodriguez, J. J. ;

Dionysiou, D. D. .

CATALYSIS TODAY, 2017, 280 :21-28

[3] Preparation and characterization of direct Z-scheme photocatalyst Bi2O3/NaNbO3 and its reaction mechanism [J].

Chen, Shifu ;

Hu, Yingfei ;

Ji, Lei ;

Jiang, Xiaoliang ;

Fu, Xianliang .

APPLIED SURFACE SCIENCE, 2014, 292 :357-366

[4] High-Efficiency Visible-Light-Driven Ag3PO4/AgI Photocatalysts: Z-Scheme Photocatalytic Mechanism for Their Enhanced Photocatalytic Activity [J].

Chen, Zhihong ;

Wang, Weilin ;

Zhang, Zhengguo ;

Fang, Xiaoming .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (38) :19346-19352

[5] Facile synthesis of g-C3N4/BiVO4 heterojunctions with enhanced visible light photocatalytic performance [J].

Cheng, Jiang ;

Yan, Xuelian ;

Mo, Qionghua ;

Liu, Bitao ;

Wang, Jun ;

Yang, Xin ;

Li, Lu .

CERAMICS INTERNATIONAL, 2017, 43 (01) :301-307

[6] Facile fabrication of a direct Z-scheme Ag2CrO4/g-C3N4 photocatalyst with enhanced visible light photocatalytic activity [J].

Deng, Yaocheng ;

Tang, Lin ;

Zeng, Guangming ;

Wang, Jiajia ;

Zhou, Yaoyu ;

Wang, Jingjing ;

Tang, Jing ;

Liu, Yani ;

Peng, Bo ;

Chen, Fei .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2016, 421 :209-221

[7] C3N4/CaTi2O5 Composite: Synthesis and Photocatalytic Properties [J].

Dong Wei-Xia ;

Bao Qi-Fu ;

Gu Xing-Yong ;

Peng Gang ;

Zhao Xue-Guo .

CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2017, 33 (02) :292-298

[8] Synthesis and characterization of g-C3N4/BiFeO3 composites with an enhanced visible light photocatalytic activity [J].

Fan, Ting ;

Chen, Changchun ;

Tang, Zhonghai ;

Ni, Yaru ;

Lu, Chunhua .

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2015, 40 :439-445

[9] Low temperature synthesis and photocatalytic property of perovskite-type LaCoO3 hollow spheres [J].

Fu, Shasha ;

Niu, Helin ;

Tao, Zhiyin ;

Song, Jiming ;

Mao, Changjie ;

Zhang, Shengyi ;

Chen, Changle ;

Wang, Dong .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 576 :5-12

[10] Graphite carbon nitride/ZnIn2S4 heterojunction photocatalyst with enhanced photocatalytic performance for degradation of tetracycline under visible light irradiation [J].

Guo, Feng ;

Cai, Yi ;

Guan, Weisheng ;

Huang, Hui ;

Liu, Yang .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2017, 110 :370-378

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