Investigation on Tetracycline degradation and bactericidal properties of binary and ternary ZnO/NiO/g-C3N4 composites prepared by a facile co-precipitation method

被引:40
|
作者
Dineshbabu, N. [1 ]
Jayaprakash, R. N. [2 ]
Karuppasamy, P. [1 ]
Arun, Thirumurugan [3 ]
Vijaya, J. Judith [1 ,4 ]
Nimshi, R. Esther [4 ]
Pandian, Muthu Senthil
Packiam, S. Maria [5 ]
Ramasamy, P.
机构
[1] SSN Coll Engn, SSN Res Ctr, , Tamilnadu, Chennai 603110, Tamil Nadu, India
[2] Affiliated Anna Univ, Adhiyamaan Coll Engn Autonomous, Dept Phys, , Tamilnadu, Hosur 635109, Tamil Nadu, India
[3] Univ Atacama, Sede Vallenar, Costanera 105, Vallenar, Chile
[4] Univ Madras, Loyola Coll Autonomous, Dept Chem, CNR Lab, Chennai 34, Tamil Nadu, India
[5] Entomol Res Inst ERI, Loyola Coll Autonomous, Chennai 34, Tamil Nadu, India
来源
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2022年 / 10卷 / 03期
关键词
Ternary hybrid; Antibiotics; Tetracycline; Photocatalysis; Antibacterial; VISIBLE-LIGHT; PHOTOCATALYTIC DEGRADATION; EFFICIENT; HETEROJUNCTIONS; WATER; G-C3N4; NANOCOMPOSITES; MECHANISM; NANORODS; CARRIERS;
D O I
10.1016/j.jece.2022.107368
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In this work, a facile co-precipitation method was adopted for the preparation of binary ZnO/g-C3N4, NiO/g-C3N4 and ZnO/NiO composites and ternary ZnO/NiO/g-C3N4 composites. The structural, optical, morphological and compositional analyses were investigated by various characterization techniques. The photocatalytic activity of the prepared composites was analyzed against Tetracycline (TC) under visible light irradiation. The optimized ZnO/NiO/g-C3N4 photocatalysts were found to cause superior TC degradation efficiency of 91.49% within 60 min with pseudo-first order kinetics value of 0.05356 min(-1). From scavenger's experiment, it is revealed that center dot OH and center dot O-2(-) species are core factors for the photocatalytic TC degradation. After three recycles, the ZnO/NiO/g-C3N4 composites resulted in 88.76% TC degradation efficiency indicating its advanced photocatalytic ability and high stability. Additionally, bactericidal activity was also analyzed against various bacteria. The ternary mixtures provide moderate bactericidal impact against bacteria. The present work fulfills its primary role on antibiotic degradation and antimicrobial activity with superior performance.
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页数:17
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