Synthesis of Z-scheme g-C3N4/Gd-doped Bi2WO6 heterojunction with enhanced visible-light photodegradation of organic dyes

被引：2

作者：

Ma, Cheng ^{[1
]}

Ding, Yu ^{[1
]}

Ding, Xute ^{[1
]}

Zhao, Ling ^{[1
]}

Xu, Ziyi ^{[1
]}

Gao, Xiang ^{[1
]}

Chen, Dianyu ^{[1
]}

机构：

[1] Changshu Inst Technol, Jiangsu Key Lab Funct Mat, Dept Mat Engn, Changshu 215500, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2022年 / 33卷 / 18期

关键词：

REDUCED GRAPHENE OXIDE; PHOTOCATALYTIC DEGRADATION; CHARGE SEPARATION; METHYL-ORANGE; WASTE-WATER; COMPOSITE; CONSTRUCTION; PERFORMANCE; PHOTOREDUCTION; REMOVAL;

D O I：

10.1007/s10854-022-08376-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Herein, we prepared the g-C3N4/Gd-doped Bi2WO6 Z-scheme heterojunction (BCN) composites by a simple hydrothermal method. The composites were investigated by SEM (EDX), TEM, XRD, XPS, UV-Vis DRS and PL analysis. The photocatalytic performance of composites was envaulted by degrading methylene blue (MB) under the irradiation of a 300 W mercury lamp. The results demonstrated that coupling g-C3N4 and doping Gd (3+) effectively enhanced the photocatalytic efficiency of pure Bi2WO6. The 92% of MB was degraded within 120 min by optimal 0.15-100 BCN sample, being 1.61 times as that of Bi2WO6. The greatly enhanced performance of 0.15-100 BCN was due to the synergistic effect of Gd (3+) doping and g-C3N4 coupling, which maintained high redox capacity. According to the experiment of capture active species, Z-scheme charge transfer mechanism was also deduced. This study may provide an efficient and green method for the treatment of dyestuff industrial wastewater.

引用

页码：14545 / 14555

页数：11

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