MATERIALS AND SUSTAINABLE DEVELOPMENT:ENVIRONMENT-FRIENDLY MATERIALS AND MATERIALS FOR ENVIRONMENTAL REMEDIATION |
|
|
|
|
|
Study on Degradation of Carbamazepine by g-C3N4/Ag3PO4 Composite Photocatalyst Prepared by In-situ Deposition |
QIAO Shuai1,2, ZHAO Chaocheng1,2, HE Fengting1,2, ZHAO Hongfei1,2, DONG Pei1,2, LIN Feifei1,2, TAI Zhaoxin1,2
|
1 Department of Chemical Engineering, China University of Petroleum(East China), Qingdao 266580, China 2 State Key Laboratory of Petroleum Pollution Control and Treatment, Beijing 102206, China |
|
|
Abstract The g-C3N4/Ag3PO4 composite photocatalyst was synthesized by in-situ deposition method. X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis diffuse reflectance spectroscopy(DRS), X-ray photoelectron spectroscopy(XPS), photoluminescence spectroscopy (PL) and specific surface area analysis (BET) were used to characterize the synthesized samples. A possible formation mechanism of this heterostructure was investigated. Meanwhile, the photocatalytic oxidation performance of photocatalyst was tested with carbamazepine (CBZ) of 10 mg/L as the target pollutant. Compared with pure g-C3N4 and pure Ag3PO4, g-C3N4/Ag3PO4 composite photocatalyst exhibits superior photocatalytic ability. Among them, the CN/AP-0.5 composite photocatalyst with the theoretical mass ratio of g-C3N4 and Ag3PO4 of 1∶0.5 is the best. After 80 min of visible light illumination, the degradation rate of carbamazepine (CBZ 10 mg/L) can reach 80%, the catalytic performance is greatly improved compared with g-C3N4 monomer and Ag3PO4 monomer. Free radical trapping experiments show that in the process of photoca-talytic degradation of CBZ, the hole (h+) is the main active species.
|
Published: 05 November 2020
|
|
Fund:This work was financially supported by the National Water Pollution Control and Management Science and Technology Major Project (2016ZX05040003). |
About author:: Shuai Qiao, graduated from Yantai University in June 2017 with a Bachelor of science degree in Environmental Equipment Engineering. He is currently a graduate student of China University of Petroleum (East China) and has conducted research on the subject under the guidance of Mr. Zhao Chaocheng. The current research direction is photocatalytic treatment of organic wastewater. Chaocheng Zhao, professor at China University of Petroleum (East China), doctoral tutor. Since March 1990, he has worked in the School of Chemical Engineering of China University of Petroleum (East China), teaching and research and technical services in environmental science and engineering (from July 1998 to October 1998 in the UK) Surrey University is a visiting scholar engaged in environmental chemistry research. The research direction includes environmental catalysis, odor pollution assessment and treatment technology, oil sludge treatment and resource technology, oil contaminated soil remediation, refinery wastewater deep treatment and reuse. Technology, refractory wastewater compliance technology, environmental impact assessment technology and environmental monitoring technology; undertaken more than 20 scientific research projects at the provincial and ministerial level, more than 80 other scientific research and technical service projects, responsible for completing a number of environmental impact assessments project. He has published more than 180 papers, among them, SCI and EI included more than 60 articles. There are 16 docto-ral students, 95 master students, and over 100 undergraduates. |
|
|
1 Zhang Y, Geissen S, Gal C. Chemosphere,2008,73(8),1151. 2 Heberer T. Toxicology Letters,2002,131(PIIS0378-4274(02)00041-31-2),5. 3 Martinez C, Canle L M, Fernandez M I, et al. Applied Catalysis B-Environmental,2011,102(3-4),563. 4 Doll T E, Frimmel F H. Catalysis Today,2005,101(3-4), 195. 5 Rao Y F, Chu W, Wang Y R. Applied Catalysis A-General,2013,468,240. 6 Xu J, Li L, Guo C, et al. Applied Catalysis B-Environmental,2013,130,285. 7 Wang X, Maeda K, Thomas A, et al. Nature Materials,2009,8(1),76. 8 Zheng Y, Lin L, Wang B, et al. Angewandte Chemie-International Edition,2015,54(44),12868. 9 Mamba G, Mishra A K. Applied Catalysis B-Environmental,2016,198,347. 10 Ye S, Wang R, Wu M, et al. Applied Surface Science,2015,358(A),15. 11 Zheng Y, Liu J, Liang J, et al. Energy & Environmental Science,2012,5(5),6717. 12 Zhang Y, Wang P, Yu X, et al. Jouranal of Materials Chemistry A,2016,4(47),18509. 13 Zhou L, Zhang H, Sun H, et al. Catalysis Science & Technology,2016,6(19),7002. 14 Dong G, Zhang L. Jouranal of Materials Chemistry,2012,22(3),1160. 15 Yi Z, Ye J, Kikugawa N, et al. Nature Materials,2010,9(7),559. 16 Qin J, Huo J, Zhang P, et al. Nanoscale,2016,8(4),2249. 17 Patil S S, Tamboli M S, Deonikar V G, et al. Dalton Transactions,2015,44(47),20426. 18 Chen X, Dai Y, Huang W. Material Letters,2015,145,125. 19 Chen Z, Wang W, Zhang Z, et al. Journal of Physical Chemistry C,2013,117(38),19346. 20 Taheri M E, Petala A, Frontistis Z, et al. Catalysis Today,2017,280(SI1),99. 21 Deonikar V G, Patil S S, Tamboli M S, et al. Physical Chemistry Chemical Physics,2017,19(31),10. 22 Wang X X,Gao J P,Zhao R R, et al. Journal of Inorganic Chemistry,2018(6),1059(in Chinese). 王晓雪,高建平,赵瑞茹,等.无机化学学报,2018(6),1059. 23 Fan G D,Fan M M,Guo M,et al. Journal of Shaanxi University of Science and Technology,2018(4),120(in Chinese). 樊国栋,樊苗苗,郭萌,等. 陕西科技大学学报, 2018(4), 120. 24 Mao X. Synthesis of carbon nanotubes-silver phosphate photocatalyst and its visible light photocatalytic activity. Master's Thesis, Nanjing University,China,2014(in Chinese). 毛星.碳纳米管-磷酸银光催化剂的合成及其可见光催化活性研究.硕士学位论文,南京大学,2014. 25 Jiang D, Li J, Xing C, et al. ACS Applied Materials & Interfaces,2015,7(34),19234. 26 Zhang J, Lv J, Dai K, et al. Ceramics International,2017,43(1B),1522. 27 Sun M, Zeng Q, Zhao X, et al. Journal of Hazaraous Materials,2017,339,9. 28 Shi X, Ma D, Ma Y, et al. Journal of Photochemistry and Photobiology,2017,332,487. |
|
|
|