NiO/AC催化臭氧氧化去除水中的苯酚

王益平; 蓝月存; 饶义飞; 罗汉金

环境工程学报

NiO/AC催化臭氧氧化去除水中的苯酚

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王益平, 蓝月存, 饶义飞, 罗汉金. NiO/AC催化臭氧氧化去除水中的苯酚[J]. 环境工程学报, 2010, 4(11): 2441-2445.

引用本文:

王益平, 蓝月存, 饶义飞, 罗汉金. NiO/AC催化臭氧氧化去除水中的苯酚[J]. 环境工程学报, 2010, 4(11): 2441-2445.

Wang Yiping, Lan Yuecun, Rao Yifei, Luo Hanjin. Catalytic ozonation of phenol in aqeuous solution coupled with nickel oxide-loaded activated carbon[J]. Chinese Journal of Environmental Engineering, 2010, 4(11): 2441-2445.

Citation:

Wang Yiping, Lan Yuecun, Rao Yifei, Luo Hanjin. Catalytic ozonation of phenol in aqeuous solution coupled with nickel oxide-loaded activated carbon[J]. Chinese Journal of Environmental Engineering, 2010, 4(11): 2441-2445.

NiO/AC催化臭氧氧化去除水中的苯酚

1.
华南理工大学环境科学与工程学院, 广州 510006；2.工业聚集区污染控制与生态修复教育部重点实验室，广州 510006
基金项目:
国家自然科学基金资助项目（40973074）
中图分类号: X703.1

Catalytic ozonation of phenol in aqeuous solution coupled with nickel oxide-loaded activated carbon

1.
College of Environmental Science and Engineering， South China University of Technology，Guangzhou 510006，China；2.Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters，Ministry of Education，Guangzhou 510006，China
Fund Project:

摘要: 采用低温湿式浸渍法制备了负载氧化镍/活性炭(简称NiO/AC)催化剂。在不同pH、叔丁醇浓度等条件下，对NiO/AC与臭氧联合催化臭氧氧化苯酚的降解效果等进行了研究。用XRD、SEM及BET技术分析了活性炭与催化剂的组成、形貌及结构变化。结果表明，镍以棒状氧化镍的形式负载在活性炭表面，与AC相比，NiO/AC比表面积减少了47.9%。在O3/NiO/AC与苯酚的反应体系中，反应遵循羟基自由基(HO·)机理，苯酚的去除率比单独臭氧氧化提高了29%，且与溶液pH呈正相关。 NiO/AC催化性能较稳定，镍离子最大析出浓度仅为7 mg/L，可重复使用。
- 催化臭氧氧化 /
- 羟基自由基 /
- NiO/AC /
- 苯酚
Abstract: Nickel oxide-loaded activated carbon (NiO/AC) was prepared by the method of an incipient wetness impregnation at low temperature. The degradation of phenol by combined catalytic oxidation of NiO/AC and ozone under different pH and concentrations of t-BuOH was investigated. The crystal structure, surface morphology and textural properties of AC and NiO/AC were characterized by XRD, SEM and BET. The results showed that nickel was loaded on the surface of activated carbon in the form of rod-like nickel oxide. The surface area of NiO/AC decreased by 47.9% compared to that of AC. The reaction of O3/NiO/AC catalyzed ozonation of phenol followed the hydroxyl radical reaction mechanism. The removal efficiency of phenol was 29% higher than that of ozone.The removal rate of phenol has the positive correlation with the solution pH. It is confirmed that the catalytic performance of NiO/AC was stable, the maximum nickel ion concentration was 7 mg/L, which can be reused for several times.
- catalytic ozonation /
- hydroxyl radical /
- NiO/AC /
- phenol

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王益平, 蓝月存, 饶义飞, 罗汉金. NiO/AC催化臭氧氧化去除水中的苯酚[J]. 环境工程学报, 2010, 4(11): 2441-2445.

引用本文:

王益平, 蓝月存, 饶义飞, 罗汉金. NiO/AC催化臭氧氧化去除水中的苯酚[J]. 环境工程学报, 2010, 4(11): 2441-2445.

Citation:

NiO/AC催化臭氧氧化去除水中的苯酚

1. 华南理工大学环境科学与工程学院, 广州 510006；2.工业聚集区污染控制与生态修复教育部重点实验室，广州 510006

收稿日期: 2010-08-26

基金项目:

国家自然科学基金资助项目（40973074）

关键词:

摘要: 采用低温湿式浸渍法制备了负载氧化镍/活性炭(简称NiO/AC)催化剂。在不同pH、叔丁醇浓度等条件下，对NiO/AC与臭氧联合催化臭氧氧化苯酚的降解效果等进行了研究。用XRD、SEM及BET技术分析了活性炭与催化剂的组成、形貌及结构变化。结果表明，镍以棒状氧化镍的形式负载在活性炭表面，与AC相比，NiO/AC比表面积减少了47.9%。在O3/NiO/AC与苯酚的反应体系中，反应遵循羟基自由基(HO·)机理，苯酚的去除率比单独臭氧氧化提高了29%，且与溶液pH呈正相关。 NiO/AC催化性能较稳定，镍离子最大析出浓度仅为7 mg/L，可重复使用。

English Abstract

Catalytic ozonation of phenol in aqeuous solution coupled with nickel oxide-loaded activated carbon

1. College of Environmental Science and Engineering， South China University of Technology，Guangzhou 510006，China；2.Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters，Ministry of Education，Guangzhou 510006，China

Received Date: 2010-08-26

Fund Project:

Keywords:

Abstract: Nickel oxide-loaded activated carbon (NiO/AC) was prepared by the method of an incipient wetness impregnation at low temperature. The degradation of phenol by combined catalytic oxidation of NiO/AC and ozone under different pH and concentrations of t-BuOH was investigated. The crystal structure, surface morphology and textural properties of AC and NiO/AC were characterized by XRD, SEM and BET. The results showed that nickel was loaded on the surface of activated carbon in the form of rod-like nickel oxide. The surface area of NiO/AC decreased by 47.9% compared to that of AC. The reaction of O3/NiO/AC catalyzed ozonation of phenol followed the hydroxyl radical reaction mechanism. The removal efficiency of phenol was 29% higher than that of ozone.The removal rate of phenol has the positive correlation with the solution pH. It is confirmed that the catalytic performance of NiO/AC was stable, the maximum nickel ion concentration was 7 mg/L, which can be reused for several times.

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NiO/AC催化臭氧氧化去除水中的苯酚

Catalytic ozonation of phenol in aqeuous solution coupled with nickel oxide-loaded activated carbon

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NiO/AC催化臭氧氧化去除水中的苯酚

English Abstract

Catalytic ozonation of phenol in aqeuous solution coupled with nickel oxide-loaded activated carbon

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