光催化
罗丹明B
材料科学
方解石
纳米复合材料
化学工程
核化学
催化作用
纳米技术
化学
有机化学
工程类
沸石
作者
Thi To Loan Nguyen,Dai‐Viet N. Vo,Lan Nguyễn,Anh Tuan Duong,Hai Q. Nguyen,Nhuong M. Chu,Duyen Thi Cam Nguyen,Thuan Van Tran
标识
DOI:10.1016/j.eti.2021.102130
摘要
The synthetic textile effluents often contain a large amount of pretreated dyes, which possibly offers the high degree of toxicity, causing many negative influences on the human health and environment. In this work, we reported the fabrication of ZnFe2O4@ZnO nanocomposite by the facile solution combustion and investigated their potential for the photocatalytic removal of Rhodamine B under the visible light LED lamps. The materials were characterized by XRD, DRS, EDX, TEM, and N2 adsorption desorption isotherm measurements. The results exhibited the highest Rhodamine B degradation efficiency of 91.87% using ZnFe2O4-50%@ZnO at the concentration of 5.0 mg L−1 and catalyst dosage of 0.75 g L−1. Possible photocatalytic mechanisms were proposed with the main role of reactive oxygen species (⋅O2–, ⋅OH) over the electron excitation using the visible light source. The ZnFe 2O4-50%@ZnO catalyst could reuse at least four cycles. Through a comparative study, ZnFe 2O4-50%@ZnO exhibited the better photocatalytic performance than other nanocomposites. It may be, therefore, expected as a promising photocatalyst for the treatment of organic dyes.
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