过渡金属催化剂CoxNi1-xTiO3活化过硫酸盐去除水中污染物的综合实验设计

doi:10.3969/j.issn.1000-1158.2024.07.18

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Abstract The advanced oxidation technology based on persulfate (PMS) has the characteristics of high efficiency and environmental friendliness, which has a very good application prospect in the field of water treatment. A series of heterogeneous catalysts CoxNi1-xTiO3 with different Co/Ni ratios were prepared by using the method of glycol precipitation-calcination by taking advantage of the synergistic activation of PMS among transition metals. The phase and microstructure of the catalyst were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). At the same time, the effects of catalyst dosage, PMS concentration, pH value and catalyst recycling on the degradation of Ciprofloxacin (CIP) were investigated. The optimal conditions were 0.20g/L Co0.7Ni0.3TiO3, 0.5mmol/L PMS and pH=6. The efficiency of CIP degradation was 90.01% within 60min. The experiment of free radical quenching confirmed that SO·-4 is the main active species in the process of advanced oxidative degradation.

Key words： stoichiometry;pollutants from water transition metal catalyst activated persulfate Rhodamine B ciprofloxacin

Received: 28 November 2023 Published: 04 July 2024

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TB99

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	CHENG Yuanyuan
	ZANG Meng
	QI Hongbin

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CHENG Yuanyuan,ZANG Meng,QI Hongbin. Comprehensive Experimental Design of Transition Metal Catalyst CoxNi1-xTiO3 Activated Persulfate for Removal of Pollutants From Water[J]. Acta Metrologica Sinica, 2024, 45(7): 1073-1080.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.07.18 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I7/1073

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