[1]王丽娟,蔡俊,王莹,等.石墨相氮化碳负载镍铁水滑石活化PDS降解染料[J].深圳大学学报理工版,2021,38(3):264-271.[doi:10.3724/SP.J.1249.2021.03264]
 WANG Lijuan,CAI Jun,WANG Ying,et al.Activation of PDS by graphitic carbon nitride supported with NiFe layered double hydroxide for the degradation of dye[J].Journal of Shenzhen University Science and Engineering,2021,38(3):264-271.[doi:10.3724/SP.J.1249.2021.03264]
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石墨相氮化碳负载镍铁水滑石活化PDS降解染料()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第38卷
期数:
2021年第3期
页码:
264-271
栏目:
材料科学
出版日期:
2021-05-14

文章信息/Info

Title:
Activation of PDS by graphitic carbon nitride supported with NiFe layered double hydroxide for the degradation of dye
文章编号:
202103008
作者:
王丽娟蔡俊王莹王汉铮路井义
河北工业大学土木与交通学院,天津 300401
Author(s):
WANG LijuanCAI JunWANG YingWANG Hanzhengand LU Jingyi
School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin 300401, P.R.China
关键词:
废水处理镍铁水滑石 石墨相氮化碳 过二硫酸盐 亚甲基蓝 降解机理 印染废水
Keywords:
waste water treatment NiFe layered double hydroxide graphitic carbon nitride perdisulfate methylene blue degradation mechanism dyeing wastewater
分类号:
X791
DOI:
10.3724/SP.J.1249.2021.03264
文献标志码:
A
摘要:
为提高石墨相氮化碳(g-C3N4)光催化处理印染废水的效果,缩短反应时间,采用共沉淀法制备石墨相氮化碳负载镍铁水滑石(NiFe-LDH@g-C3N4)复合材料,并通过X射线衍射仪、扫描电镜、透射电镜和X射线光电子能谱仪进行表征.以NiFe-LDH@g-C3N4为催化剂,模拟日光条件活化过二硫酸盐(perdisulfate,PDS),降解目标污染物亚甲基蓝(methylene blue,MB),研究PDS质量浓度、催化剂投加量、反应温度以及pH值对MB降解率的影响.结果表明,NiFe-LDH@g-C3N4活化PDS能有效降解MB,在催化剂质量浓度为1.0 g/L、PDS质量浓度为200 mg/L、反应温度为30 ℃和pH值为9的最佳条件下,处理60 min后MB的降解率可以达到99.4%.淬灭实验表明,光生空穴在MB降解过程中起最主要作用.
Abstract:
In order to improve the photocatalytic effect of graphite phase carbon nitride (g-C3N4) on the treatment of dyeing water and reduce the reaction time, the graphitic phase carbon nitride supported with NiFe layered double hydroxide (NiFe-LDH@g-C3N4) was successfully prepared by coprecipitation method, and the composites were characterized by XRD, SEM, TEM and XPS. By using the NiFe-LDH@g-C3N4 as catalyst, perdisulfate (PDS) was activated, and the methylene blue (MB) was degraded under the simulated sunlight, and the effects of PDS concentration, catalyst dosage, reaction temperature and pH on the degradation rate of MB were investigated. The result shows that the PDS activated by NiFe-LDH@g-C3N4 can effectively degrade MB under the optimal conditions of 1.0 g/L catalyst dosage, 200 mg/g PDS concentration, 30 ℃ and pH=9. After treatment of 60 mins, the MB degradation rate can reach 99.4% . The quenching tests show that photoinduced holes play a major role in the degradation of MB.

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备注/Memo

备注/Memo:
Received:2020-07-08;Accepted:2021-01-03
Foundation:Key Foundation of Hebei Education Department ( ZD2019126); Construction Project of Teaching Case Base for Professional Degrees of Hebei Province ( KCJSZ2018015)
Corresponding author:Senior engineer WANG Lijuan.E-mail: wlj@hebut.edu.cn
Citation:WANG Lijuan,CAI Jun,WANG Ying,et al. Activation of PDS by graphitic carbon nitride supported with NiFe layered double hydroxide for the degradation of dye[J]. Journal of Shenzhen University Science and Engineering, 2021, 38(3): 264-271.(in Chinese)
基金项目:河北省教育厅重点基金资助项目 ( ZD2019126); 河北省专业学位教学案例库建设资助项目( KCJSZ2018015)
作者简介:王丽娟(1972—),河北工业大学高级工程师、博士. 研究方向: 环境系统优化与水处理.E-mail: wlj@hebut.edu.cn
蔡俊(1996—),河北工业大学硕士研究生.研究方向: 水处理.E-mail: 523146359@qq.com
王丽娟、蔡俊为共同第一作者.
引文:王丽娟,蔡俊,王莹,等.石墨相氮化碳负载镍铁水滑石活化PDS降解染料[J]. 深圳大学学报理工版,2021,38(3):264-271.
更新日期/Last Update: 2021-05-30