Kinetic Study of Styrene Oxidation over Titania Catalyst Supported on Sulfonated Fish Bone-derived Carbon

IF 1.3 Q3 ENGINEERING, CHEMICAL
R. Kusumawardani, M. Nurhadi, T. Wirawan, A. Prasetyo, Nabila Nur Agusti, S. Y. Lai, Hadi Nur
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引用次数: 1

Abstract

The kinetic evaluation of titania supported sulfonated fish bone-derived carbon (TiO2/SFBC) as a catalyst in styrene oxidation by aqueous hydrogen peroxide was carried out. The catalysts were prepared by carbonation of fishbone powder at varying temperatures 500, 600 and 700 °C, respectively for 2 h, followed by sulfonation with sulfuric acid (1M) for 24 h and impregnated by varied titania concentration 500, 1000 and 1500 µmol. The physical properties of catalysts were characterized using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Scanning Electron Microscope-Energy Dispersive X-Ray (SEM-EDX) and the nitrogen adsorption-desorption analysis. The catalytic activity result showed that TiO2/SFBC can be used as a potential catalyst in styrene oxidation. Worth noting that the sulfonation process has not only transformed the TiO2/FBC particulates (without sulfonation) to cuboid-shaped TiO2/SFBC (with sulfonation) but also contributed to the high selectivity of benzaldehyde. On the other hand, carbonization at different temperatures has an indistinct effect on catalytic performance due to their similar surface areas. The styrene conversion rate responded positively with the increasing amount of titania in the functionalized composites. The styrene oxidation by aqueous H2O2 unraveled the first-order reaction with the activation energy of ⁓63.5 kJ. Copyright © 2022 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). 
磺化鱼骨碳负载二氧化钛催化剂氧化苯乙烯的动力学研究
对二氧化钛负载的磺化鱼骨衍生碳(TiO2/SFBC)作为过氧化氢水溶液氧化苯乙烯的催化剂进行了动力学评价。催化剂的制备方法是将鱼骨粉分别在500、600和700°C的不同温度下碳酸化2小时,然后用硫酸(1M)磺化24小时,并用500、1000和1500µmol的不同二氧化钛浓度浸渍。利用傅立叶变换红外光谱、X射线衍射、扫描电子显微镜能谱仪和氮吸附-解吸分析对催化剂的物理性能进行了表征。催化活性结果表明,TiO2/SFBC可作为苯乙烯氧化的潜在催化剂。值得注意的是,磺化过程不仅将TiO2/FBC颗粒(未磺化)转化为长方体形状的TiO2/SFBC颗粒(磺化),而且有助于苯甲醛的高选择性。另一方面,不同温度下的碳化由于其表面积相似,对催化性能的影响不明显。苯乙烯转化率随功能化复合材料中二氧化钛含量的增加而呈正响应。H2O2水溶液对苯乙烯的氧化反应为一级反应,活化能为63.5kJ。版权所有©2022作者,BCREC集团出版。这是CC BY-SA许可证下的开放访问文章(https://creativecommons.org/licenses/by-sa/4.0)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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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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