首页> 外文期刊>Journal of Hazardous Materials >Modelling and simulation of photocatalytic oxidation mechanism of chlorohalogenated substituted phenols in batch systems: Langmuir-Hinshelwood approach
【24h】

Modelling and simulation of photocatalytic oxidation mechanism of chlorohalogenated substituted phenols in batch systems: Langmuir-Hinshelwood approach

机译:间歇体系中氯卤代取代酚的光催化氧化机理建模与仿真:Langmuir-Hinshelwood方法

获取原文
获取原文并翻译 | 示例
       

摘要

This study investigated, modelled and simulated the influence of multi-chlorohalogenation in heterogeneous photocatalytic degradation of substituted phenols (pentachlorophenol (PCP), trichlorophenol (TCP), dichlorophenol (DCP), and monochlorophenol (CP)). The Langmuir-Hinshelwood approach was applied to determine oxidation kinetics. Aquasim 2.0 computational software was used to model, simulate and estimate model parameters of the different chlorophenols. Chemical adsorption equilibrium isotherms for the four chlorophenols and phenol were studied and modelled for adsorption onto titanium dioxide (TiO2) semiconductor catalyst. Langmuir adsorption parameters were determined and used to calculate adsorption constant and maximum adsorption capacity. The adsorption of chloride phenolics onto titanium dioxide catalyst increased in the order of 4-CP < DCP < Ph < TCP < PCP. Photocatalytic studies analysed the efficiency of oxidation and found improved degradation with higher chloride substituted phenolics in the order of PCP > TCP > DCP >= 4-CP. Photocatalytic parameters were calculated and estimated along with sensitivity and uncertainty analyses. (C) 2015 Elsevier B.V. All rights reserved.
机译:本研究调查,建模和模拟了多氯卤代化对取代酚(五氯酚(PCP),三氯酚(TCP),二氯酚(DCP)和一氯酚(CP))的非均相光催化降解的影响。 Langmuir-Hinshelwood方法用于确定氧化动力学。使用Aquasim 2.0计算软件对不同氯酚的模型参数进行建模,模拟和估算。研究了四种氯酚和苯酚的化学吸附平衡等温线,并进行了模型化,以吸附到二氧化钛(TiO2)半导体催化剂上。确定Langmuir吸附参数,并用于计算吸附常数和最大吸附容量。氯酚在二氧化钛催化剂上的吸附量按4-CP TCP> DCP> = 4-CP的顺序改善了降解。计算并估计了光催化参数以及灵敏度和不确定性分析。 (C)2015 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2015年第30期|459-466|共8页
  • 作者

    Khuzwayo Z.; Chirwa E. M. N.;

  • 作者单位

    Univ Pretoria, Dept Chem Engn, Water Utilisat Div, ZA-0002 Pretoria, South Africa;

    Univ Pretoria, Dept Chem Engn, Water Utilisat Div, ZA-0002 Pretoria, South Africa;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Photocatalysis; Chlorophenols; Modelling; Simulation;

    机译:光催化氯酚建模模拟;
  • 入库时间 2022-08-17 13:22:29

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号