Quinoline degradation and mechanism in catalytic wet peroxide oxidation system

ZOU Han; WANG Shutao; YOU Hong; WANG Zhishen; WANG Weiqing

doi:10.3969/j.issn.0438-1157.2014.11.026

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Quinoline degradation and mechanism in catalytic wet peroxide oxidation system

更新时间：2025-12-10

- Quinoline degradation and mechanism in catalytic wet peroxide oxidation system
- CIESC Journal Issue 11, Pages: 4400-4405(2014)
- 作者机构：
  
  哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江,哈尔滨,150090
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.11.026
  CLC： 703.1
- Online First：05 November 2014，
  
  Published：05 November 2014
- 稿件说明：
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ZOU Han, WANG Shutao, YOU Hong, et al. Quinoline degradation and mechanism in catalytic wet peroxide oxidation system[J]. CIESC Journal, 2014, (11): 4400-4405.
DOI：

ZOU Han, WANG Shutao, YOU Hong, et al. Quinoline degradation and mechanism in catalytic wet peroxide oxidation system[J]. CIESC Journal, 2014, (11): 4400-4405. DOI： 10.3969/j.issn.0438-1157.2014.11.026.

摘要

采用浸渍法制备了负载型铜铁氧化物催化剂

并以喹啉为目标污染物

建立了湿式过氧化氢催化氧化(CWPO)体系.研究了反应温度、初始pH、H2O2和催化剂投加量对喹啉去除效果的影响

并分析了CWPO体系中的作用及喹啉的降解路径.结果表明

CWPO对喹啉具有很好的去除效果

反应30 min喹啉的去除率可达到100%

反应60 min矿化率可达到88.34%.确定了最佳反应温度为80℃

初始pH为7

H2O2和催化剂投加量分别为29.15 mmol·L-1和4 g·L-1. 氧化在CWPO降解喹啉体系中起主导作用

其平均产生速率为1.69×10-6 mmol·L-1·min-1.推测了CWPO降解喹啉的4种可能路径

在中性和酸性条件下

分别生成以吡啶环或苯环为主的中间产物.

Abstract

In order to study the removal and degradation mechanism of quinoline in catalytic wet peroxide oxidation (CWPO) system

a series of experiments were conducted over CuO-FeOx/γ-Al2O3 catalyst. The influence of reaction temperature

initial pH

dosage of H2O2 and amount of catalyst were investigated

and the role of and degradation pathways of quinoline were analyzed. CWPO had good removal efficiency for quinoline. A complete quinoline conversion and 88.34% total organic carbon (TOC) removal were achieved in 60 min with initial pH of 7

29.15 mmol·L-1 of H2O2 and 4 g·L-1 of catalyst at 80℃.·OHoxidation played a dominant role in quinoline degradation in CWPO system

and its average production rate was 1.69×10-6 mmol·L-1·min-1. Under neutral and acidic conditions

quinoline degradation in CWPO system followed different pathways

and generated pyridine-based or benzene-based intermediate products.

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