Spinel CuB2O4 (B = Fe, Cr, and Al) Oxides for Selective Adsorption of Congo Red and Photocatalytic Removal of Antibiotics br

doi:10.1021/acsanm.2c02349

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	Spinel CuB2O4 (B = Fe, Cr, and Al) Oxides for Selective Adsorption of Congo Red and Photocatalytic Removal of Antibiotics br
	Han, Mengjun 2,3; Wang, Shifa 2,3; Chen, Xiangyu 2,3; Liu, Hao 2,3; Gao, Huajing 2,3,5; Zhao, Xinxin 2,3; Wang, Fei 4; Yang, Hua 5; Yi, Zao 6; Fang, Leiming 1
刊名	ACS APPLIED NANO MATERIALS
	2022-08-26
卷号	5 期号:8 页码:11194-11207
关键词	polyacrylamidegel method CuAl2O4 adsorption capacity photocatalytic activity antibiotic
DOI	10.1021/acsanm.2c02349
英文摘要	A polyacrylamide gel method has been used to synthesize spinel type nano-CuB2O4 with cubic phase (B = Al) and tetragonal phase (B = Cr and Fe). The phase structure, functional group information, and charge state characterization confirm that the CuAl2O4 oxides contain no impurities, while CuCr2O4 and CuFe2O4 contain CuO impurities. The CuAl2O4 oxides exhibit a small particle size of 25 nm, high optical band gap (Eg) value, high adsorption capacity for the adsorption of Congo red dye, and high photocatalytic activity for the photocatalytic degradation of tetracycline hydrochloride (TCH), which are much better than those of the CuCr2O4 and CuFe2O4 oxides. The high adsorption capacity for the CuAl2O4 oxides can be ascribed to the larger zero charge point (pHPZC) values, unique crystal structure, pore filling, electrostatic interaction, and hydrogen bond force. Photocatalytic degradation of antibiotics by CuB2O4 (B = Al, Cr, and Fe) shows high selectivity and B ion and crystal structure dependencies. The CuAl2O4 oxides exhibit high photocatalytic activity for the photocatalytic degradation of TCH and oxycline hydrochloride (OCH) and poor photocatalytic activity for the photocatalytic degradation of metformin hydrochloride (MFH) and naproxen sodium (NPS). Cyclic stability tests and XRD results further confirm that CuAl2O4 oxide is recyclable and stable. The high photocatalytic activity of CuAl2O4 oxides was explained in terms of the synergetic effects of the optical absorption coefficient, specific surface area, crystal structure, adsorbed oxygen concentration, chemical structure of the antibiotic, and conduction band and valence band potentials. The trapping experiments confirmed that TCH photodegradation in this reaction system occurs via photogenerated holes (hVB+) and superoxide radicals (center dot O-2(-)).
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000835481900001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159856]
专题	设计艺术学院理学院
作者单位	1.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China 2.Chongqing Three Gorges Univ, Sch Elect & Informat Engn, Chongqing 404000, Peoples R China; 3.Chongqing Three Gorges Univ, Chongqing Key Lab Geol Environm Monitoring & Disas, Chongqing 404000, Peoples R China; 4.Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China; 5.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 6.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Peoples R China;
推荐引用方式 GB/T 7714	Han, Mengjun,Wang, Shifa,Chen, Xiangyu,et al. Spinel CuB2O4 (B = Fe, Cr, and Al) Oxides for Selective Adsorption of Congo Red and Photocatalytic Removal of Antibiotics br[J]. ACS APPLIED NANO MATERIALS,2022,5(8):11194-11207.
APA	Han, Mengjun.,Wang, Shifa.,Chen, Xiangyu.,Liu, Hao.,Gao, Huajing.,...&Fang, Leiming.(2022).Spinel CuB2O4 (B = Fe, Cr, and Al) Oxides for Selective Adsorption of Congo Red and Photocatalytic Removal of Antibiotics br.ACS APPLIED NANO MATERIALS,5(8),11194-11207.
MLA	Han, Mengjun,et al."Spinel CuB2O4 (B = Fe, Cr, and Al) Oxides for Selective Adsorption of Congo Red and Photocatalytic Removal of Antibiotics br".ACS APPLIED NANO MATERIALS 5.8(2022):11194-11207.