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Combination of Cu2O semiconductor with reduced graphene oxide nanocomposites for boosting photocatalytic performance in degradation of organic pollutant
Physica B: Condensed Matter ( IF 2.8 ) Pub Date : 2020-12-24 , DOI: 10.1016/j.physb.2020.412736
Ali Khakzad , Azadeh Ebrahimian Pirbazari , Fatemeh Esmaeili Khalil Saraei , Mohammad Ali Aroon

This study presents efficient photocatalytic degradation of tetracycline (TC) via impregnation of Cu2O nanoparticles on TiO2 nanosheets/reduced graphene oxide nanocomposites. Different techniques such as PXRD, UV–Vis DRS, TEM, FESEM/EDX, Raman spectroscopy and N2 physisorption were employed to identify synthesized samples. The results of PXRD and Raman analyses indicated that TNs had a pure anatase phase, and graphene oxide was changed to reduced graphene oxide during the hydrothermal procedure. In addition, UV–Vis DRS results proved that modification of TNs with rGO and Cu2O facilitated the absorption of visible light. The best performance for the degradation of TC was obtained by the CGT(40) sample, which was 71.91% for visible and 83.1% for UV irradiation. The data obtained from degradation tests were modeled by the artificial neural network (ANN) as an intelligent tool. A three-layer network with 20 hidden neurons provided the best performance.



中文翻译:

Cu 2 O半导体与还原型氧化石墨烯纳米复合材料的组合,可提高光催化降解有机污染物的性能

这项研究提出了通过在TiO 2纳米片/还原的氧化石墨烯纳米复合材料上浸渍Cu 2 O纳米粒子,有效地光催化降解四环素(TC)。采用不同的技术,例如PXRD,UV-Vis DRS,TEM,FESEM / EDX,拉曼光谱和N 2物理吸附来鉴定合成样品。PXRD和拉曼分析的结果表明,TNs具有纯的锐钛矿相,并且在水热过程中氧化石墨烯变为还原的氧化石墨烯。此外,UV-Vis DRS结果证明了用rGO和Cu 2修饰TNsO促进了可见光的吸收。CGT(40)样品获得了TC降解的最佳性能,可见光率为71.91%,紫外线辐射为83.1%。从降级测试获得的数据通过人工神经网络(ANN)作为智能工具进行建模。具有20个隐藏神经元的三层网络提供了最佳性能。

更新日期:2021-01-02
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