Preparation of carbon self-doped g-C3N4 for efficient degradation of bisphenol A under visible light irradiation

被引:0
作者
Ling Lei
Xi He
Xiaoyu Lin
Yufeng Zhao
Chen Yang
Longzhe Cui
Guiping Wu
机构
[1] South-Central Minzu University,Key Laboratory of Resources Conversion and Pollution Control of the State Ethnic Affairs Commission, College of Resources and Environmental Science
来源
Environmental Science and Pollution Research | 2023年 / 30卷
关键词
Carbon-doped; Photodegradation; g-C; N; Bisphenol A;
D O I
暂无
中图分类号
学科分类号
摘要
In this study, visible-light-driven carbon self-doped graphitic carbon nitride photocatalyst was fabricated by a facile method with urea and ammonium citrate, and used for photodegradation of bisphenol A (BPA) in the aqueous environment. The experiments indicated that the prepared photocatalyst (C0.02CN) showed high catalytic activity, and 96.0%, 93.2%, and 95.5% BPA could be photodegraded in 150 min under pH 3, 6, and 11, respectively. The photocatalytic degradation rate (0.018 min−1) and mineralization (27.6%) of C0.02CN for BPA were about 6.7 and 3.5 times higher than those of the g-C3N4 (0.0027 min−1, 7.87%), respectively. C0.02CN had high reusability with a photodegradation efficiency of 84.5% for BPA after 3 cycles. Moreover, C0.02CN introduced additional carbon atoms, which generated C–O–C bonds in the g-C3N4 lattice. In contrast to g-C3N4, carbon doping enhanced the visible light absorption range of C0.02CN, reduced its band gap, and improved the separation efficiency of photogenerated electron–hole pairs. Radical quenching experiment and ESR results revealed that superoxide radicals (•O2−) and photogenerated holes (h+) acted as important parts in the high photodegradation activity under visible light irradiation. This work puts forward a one-pot strategy for the preparation of carbon self-doped g-C3N4, displacing the high-energy consuming and complicated preparation technology with promising industrial applications.
引用
收藏
页码:65328 / 65337
页数:9
相关论文
共 50 条
[41]   Peroxymonosulfate-enhanced visible light photocatalytic degradation of bisphenol A by perylene imide-modified g-C3N4 [J].
Zhang, Juanjuan ;
Zhao, Xu ;
Wang, Yanbin ;
Gong, Yan ;
Cao, Di ;
Qiao, Meng .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2018, 237 :976-985
[42]   Facile construction of g-C3N4/MnWO4/NiS heterostructures for photocatalytic degradation of organic contaminates under visible light irradiation [J].
Khudhair, Entisar M. ;
Ammar, Saad H. ;
Al-Najjar, Shahad Z. ;
Al-Jubouri, Sama M. ;
Mahdi, Ahmed S. ;
Jabbar, Zaid H. .
MATERIALS LETTERS, 2023, 347
[43]   The g-C3N4 modified by AgBr and ZIF-8 adsorption-photocatalysis synergistic degradation of bisphenol A [J].
Wei Zheng ;
Sheng Feng ;
Shanshan Feng ;
Cong Shao ;
Zhenfei Jiang ;
Wei Wu ;
Yunjie Ge ;
Shenyu Liao ;
Kunjie Li ;
Chunying Duan ;
Qi Meng .
Research on Chemical Intermediates, 2021, 47 :1471-1487
[44]   Facile synthesis of novel ternary g-C3N4/ferrite/biochar hybrid photocatalyst for efficient degradation of methylene blue under visible-light irradiation [J].
Sun, Jing ;
Lin, Xuemei ;
Xie, Jie ;
Zhang, Yongzheng ;
Wang, Qi ;
Ying, Zongrong .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2020, 606
[45]   A Z-scheme BiYO3/g-C3N4 heterojunction photocatalyst for the degradation of organic pollutants under visible light irradiation [J].
Sasikala, Parthasarathy ;
Bavani, Thirugnanam ;
Selvaraj, Manickam ;
Preeyanghaa, Mani ;
Neppolian, Bernaurdshaw ;
Murugesan, Sepperumal ;
Madhavan, Jagannathan .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (14) :41095-41106
[46]   Electro-assisted heterogeneous activation of peroxymonosulfate by g-C3N4 under visible light irradiation for tetracycline degradation and its mechanism [J].
Wang, Min ;
Kang, Jin ;
Li, Siyan ;
Zhang, Jian ;
Tang, Yiwu ;
Liu, Shuan ;
Liu, Jiayun ;
Tang, Pengpeng .
CHEMICAL ENGINEERING JOURNAL, 2022, 436
[47]   Fabrication of g-C3N4/N,Fe co-doped CQDs composites: in situ decoration of g-C3N4 with N-CQDs and Fe and efficient visible-light photocatalytic degradation of tetracycline [J].
Mou, Zhigang ;
Chen, Ting ;
Tao, Yang ;
Gao, Yang ;
Sun, Jianhua ;
Lei, Weining .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2022, 55 (44)
[48]   Synergistic Effect on Photocatalytic Activity of Co-Doped NiTiO3/g-C3N4 Composites under Visible Light Irradiation [J].
Dao, Duc Quang ;
Nguyen, Thi Kim Anh ;
Pham, Thanh-Truc ;
Shin, Eun Woo .
CATALYSTS, 2020, 10 (11) :1-11
[49]   Construction of S-doped MgO coupled with g-C3N4 nanocomposites with enhanced photocatalytic activity under visible light irradiation [J].
Chen, Yuwei ;
Jiang, Yongfeng ;
Chen, Bingyan ;
Ye, Fanglong ;
Duan, Huaqiang ;
Cui, Haoyu .
NEW JOURNAL OF CHEMISTRY, 2021, 45 (35) :16227-16237
[50]   Photocatalytic degradation of tetracycline with Fe3O4/g-C3N4/TiO2 catalyst under visible light [J].
Rui Liu ;
Xin Zhang ;
Xue Han ;
Yuan Sun ;
Shuang Jin ;
Ri-jia Liu .
Carbon Letters, 2024, 34 :75-83