Preparation of Bi2O3/TiO2–Montmorillonite Nanocomposites and Their Applications to the Photodegradation of Pentachlorophenol

IF 1.3 Q3 ENGINEERING, CHEMICAL
Nacéra Boumahdi, Amel Hadj‐Ziane‐Zafour, Hafsa Yaiche-Achour, H. Khalaf
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引用次数: 1

Abstract

In the past decades, there has been a growing tendency to study the different techniques that can increase the photocatalytic efficiency as well as recyclability of new products “photocatalysts” for water treatment. In this last research the effect of bismuth addition to titanium was investigated. Bi/Ti-pillared montmorillonites have been prepared from natural Algerian bentonite exactly from deposits of Maghnia situated in the west side of the country. These nanocomposites were characterized by X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET), scanning electron microscopy (SEM) methods, and Fourier Transformed Infrared (FT-IR). The photocatalytic activities have been tested for the removal of pentaclorophenol (PCP) in water. The effect of preparation conditions, the pH of the solution and photocatalysts concentration, on these activities has been investigated. It was found that the photocatalytic degradation increase by addition of bismuth in pillaring process. The Mont-Bi-Ti is shown to be the best photocatalyst in term of photocatalytic activity. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Bi2O3/ tio2 -蒙脱土纳米复合材料的制备及其在光降解五氯苯酚中的应用
在过去的几十年里,人们越来越倾向于研究不同的技术,以提高光催化效率和水处理新产品“光催化剂”的可回收性。最后研究了添加铋对钛的影响。铋/钛柱蒙脱石是由阿尔及利亚天然膨润土制备的,这些膨润土正是来自位于该国西部的Maghnia矿床。采用x射线衍射(XRD)、Brunauer-Emmet-Teller (BET)、扫描电子显微镜(SEM)和傅里叶变换红外(FT-IR)对纳米复合材料进行了表征。研究了光催化法去除水中五氯酚(PCP)的活性。考察了制备条件、溶液pH和光催化剂浓度对这些活性的影响。研究发现,在柱化过程中加入铋可以提高光催化降解效果。从光催化活性来看,蒙-铋-钛是最好的光催化剂。版权所有©2021作者,BCREC集团出版。这是一篇基于CC BY-SA许可(https://creativecommons.org/licenses/by-sa/4.0)的开放获取文章。
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来源期刊
CiteScore
3.20
自引率
6.70%
发文量
52
审稿时长
12 weeks
期刊介绍: Bulletin of Chemical Reaction Engineering & Catalysis, a reputable international journal, provides a forum for publishing the novel technologies related to the catalyst, catalysis, chemical reactor, kinetics, and chemical reaction engineering. Scientific articles dealing with the following topics in chemical reaction engineering, catalysis science and engineering, catalyst preparation method and characterization, novel innovation of chemical reactor, kinetic studies, etc. are particularly welcome. However, articles concerned on general chemical engineering process are not covered and out of scope of this journal
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