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Preparation of K-8[Cu(H2O)W11CrO39]@rGO-CeO2 nanocomposite and its photodegradation of Rhodamine B

机译:K-8 [Cu(H2O)W11Cro39]的制备> CeO2纳米复合材料及其光降解的罗丹明B.

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摘要

K-8[Cu(H2O)W11CrO39]@rGO-CeO2 nanocomposite, a new ternary composite material, was synthesized by dipmolding method, and characterized by FT-IR, XRD, UV-Vis, N-2-adsorption, SEM and EDS. In order to evaluate photocatalytic degradation activity of this nanocomposite, Rhodamine B (RhB) solution was selected as the reaction model of photocatalytic and the influences of initial concentration, pH, catalyst dosage, and different catalysts on photocatalytic performance were investigated under ultraviolet light irradiation (lambda < 400 nm). The results show that the degradation rate of RhB reached 97.83% under the condition when initial concentration was 5 mg/L, pH 2, and the catalyst dosage at 0.10 g. The nanocomposite as catalyst for photocatalytic experiments exhibited an enhanced photocatalytic performance due to the synergic effect between heteropoly acid (HPA) and rGO-CeO2 NPs. Our present findings will have a profound effect on the use of HPA@ rGO-CeO2 nanocomposite as photocatalytic material.
机译:K-8 [Cu(H2O)W11CRO39] @ rgo-ceO2纳米复合材料,新的三元复合材料,通过Dipmolding方法合成,并通过FT-IR,XRD,UV-Vis,N-2吸附,SEM和EDS进行了特征。为了评估该纳米复合材料的光催化降解活性,根据光催化的反应模型和初始浓度,pH,催化剂剂量和不同催化剂的光催化性能对光催化性能的影响,以进行光催化性能的光催化剂,在紫外线照射( lambda <400 nm)。结果表明,初始浓度为5mg / L,pH 2和0.10g的催化剂剂量时,RHB的降解率在初始浓度为5mg / L,pH 2和催化剂剂量下达到97.83%。作为光催化试验催化剂的纳米复合材料由于杂多酸(HPA)和RGO-CeO2 NPS之间的协同效应而表现出增强的光催化性能。我们现在的发现将对使用HPA @ Rgo-CeO2纳米复合材料作为光催化材料产生深远的影响。

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