Abstract

The water management sector is becoming extremely challenging these days because of poor water quality which is due to the presence of noxious pollutants at an alarming level. Herein, we report the synthesis of FeO/ZnO magnetic metal oxide (FZ MMO) and its nanocomposite with polyaniline (FZP). Designed photocatalyst has been characterized by various techniques such as X-Ray diffractometer (XRD), Scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), Transmission electron microscopy (TEM) and Fourier transform infrared spectrophotometer (FTIR). Bandgap values as determined using Tauc plots has been found to be 2.46 and 1.80 eV for FZ MMO and FZP, respectively. Photocatalytic activity of FZ MMO and FZP under visible light irradiations has been studied for degradation of 3-aminophenol. The influence of adsorption on the degradation rate has also been studied. 92% of 3-aminophenol present in the solution was removed in 120 min using FZP under visible light. Thus present study gives a deep insight for the designing of highly photocatalytic and reusable photocatalyst that can be utilized for the removal of various pollutants from the water system.

Graphic Abstract

中文翻译：

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可见活性FeO / ZnO @ PANI磁性纳米光催化剂降解3-氨基苯酚

摘要

这些天来，由于有害的水以令人担忧的水平存在，导致水质差，水管理部门正变得极具挑战性。在这里，我们报告FeO / ZnO磁性金属氧化物（FZ MMO）的合成及其与聚苯胺（FZP）的纳米复合材料。设计的光催化剂已通过多种技术进行了表征，例如X射线衍射仪（XRD），扫描电子显微镜（SEM），振动样品磁力计（VSM），透射电子显微镜（TEM）和傅立叶变换红外分光光度计（FTIR）。使用Tauc曲线确定的带隙值对于FZ MMO和FZP分别为2.46和1.80 eV。研究了FZ MMO和FZP在可见光照射下的光催化活性对3-氨基苯酚的降解。还研究了吸附对降解速率的影响。在可见光下使用FZP在120分钟内除去溶液中存在的92％3-氨基苯酚。因此，本研究为高度光催化和可重复使用的光催化剂的设计提供了深刻的见识，该光催化剂可用于从水系统中去除各种污染物。

图形摘要