异质结
尖晶石
降级(电信)
光催化
材料科学
催化作用
分析化学(期刊)
化学
有机化学
冶金
光电子学
计算机科学
电信
作者
H. Gao,V. Jagadeesha Angadi,Shifa Wang,Xianju Zhou,Hua Yang,Abdullah M. Al‐Enizi,Mohd Ubaidullah,Bidhan Pandit,Dengfeng Li,Manish Gupta
标识
DOI:10.1002/adsu.202300533
摘要
Abstract A simple solution combustion method is used to synthesize spinel type MgFe 2 O 4 (MFO) and CoCr 2 O 4 (CCO) oxides, which are combined with the mechanical mixing method to construct a Z‐scheme MFO/wt%CCO heterojunction, which effectively degraded tetracycline hydrochloride (TC) under simulated sunlight irradiation. Various characterization techniques are used to confirm the phase structure, composition, near‐spherical morphology, ferromagnetic behavior, optical properties, and photocatalytic activity of Z‐scheme MFO/wt%CCO heterojunction. A variety of environmental experimental parameters confirmed that when the optimal initial TC concentration is 50 mg L −1 , the catalyst content is 1 g L −1, and pH 13, the degradation percentage of TC by the MFO/75%CCO composites reached 89%. Active species verification experiments showed that the hole (h + ), hydroxyl radical (•OH), and superoxide radical (•O 2 − ) are the main active species in photocatalytic reactions. Based on mass spectrometry, toxicity analysis, and energy band theory, the degradation pathway, toxicity, and photocatalytic mechanism of MFO/75%CCO composites for the degradation of TC are discussed in detail.
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