Performance Analysis of Highly EfficientPhotocatalytic  Activity of gC3N4/ZnxCd1-xS Com Posites

TIAN Yan; TAN Yu; ZHANG Zehua; TONG Yanmin; QI Shuyan

doi:10.15938/j.jhust.2020.04.019

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Performance Analysis of Highly EfficientPhotocatalytic Activity of gC3N4/ZnxCd1-xS Com Posites

更新时间：2026-08-31

- Performance Analysis of Highly EfficientPhotocatalytic Activity of gC3N4/ZnxCd1-xS Com Posites
- Vol. 25, Issue 4, Pages: 134-140(2020)
- 作者机构：
  
  哈尔滨理工大学材料科学与工程学院,哈尔滨,150080
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2020.04.019
  CLC： O644
- Published：2020
- 稿件说明：
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TIAN Yan, TAN Yu, ZHANG Zehua, et al. Performance Analysis of Highly EfficientPhotocatalytic Activity of gC3N4/ZnxCd1-xS Com Posites[J]. 2020, 25(4): 134-140.
DOI：

TIAN Yan, TAN Yu, ZHANG Zehua, et al. Performance Analysis of Highly EfficientPhotocatalytic Activity of gC3N4/ZnxCd1-xS Com Posites[J]. 2020, 25(4): 134-140. DOI： 10.15938/j.jhust.2020.04.019.

摘要

采用原位生长技术，利用共沉淀-水热法制备gC3N4/ZnxCd1-xS光催化剂。通过XRD、SEM、TEM、EDS、UVVis DRS等手段对光催化剂的结构组成和光化学性质进行测试和表征。通过亚甲基蓝（MB）在可见光照射下的降解评价gC3N4/ZnxCd1-xS的光催化活性；并通过捕获剂测试研究光催化降解机制。结果表明：gC3N4与ZnxCd1-xS形成了结晶良好的异质结结构，gC3N4的加入增大了复合材料的光吸收范围，且随着x值的增大，材料光吸收范围逐渐减小。其中gC3N4/Zn05Cd05S光催化性能最佳，可见光照射210min后，MB的降解率达到了99%。且经过4次重复性试验后，光催化活性没有出现明显降低；通过捕获剂实验发现，参与降解的主要活性物质为h+和O-2·。

Abstract

Abstract:In this paper

insitu growth technique was used

and gC3N4/ZnxCd1-xS heterojunction photocatalyst was prepared bycoprecipitationhydrothermal method The structure and photochemical propertiesof the photocatalyst were characterized by XRD

SEM

TEM

EDS and UVVis DRSPhotocatalytic activity of gC3N4/ZnxCd1-xS was evaluated by degradation ofmethylene blue (MB) under visible light irradiation The mechanism ofphotocatalytic degradation was studied by capture agent test The results showthat gC3N4 and ZnxCd1-xS form a wellcrystallized heterojunction structure

andas the value of x increases

the light absorption range of the heterojunctiongradually decreases Among them

gC3N4/Zn05Cd05S have the best photocatalyticperformance After 210 minutes of visible light irradiation

the degradationrate to MB reached 99% After 4 reproducibility tests

there was no significantdecrease in photocatalytic activity Through the capture agent experiments

themain active substances involved in degradation are h+ and O-2·

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