高铁酸钾氧化降解罗丹明(RhB)水溶液的研究

陆晶; 黄丽; 邵春雷; 董文博; 侯惠奇

环境化学

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陆晶, 黄丽, 邵春雷, 董文博, 侯惠奇. 高铁酸钾氧化降解罗丹明(RhB)水溶液的研究[J]. 环境化学, 2007, 26(3): 366-370.

引用本文:

陆晶, 黄丽, 邵春雷, 董文博, 侯惠奇. 高铁酸钾氧化降解罗丹明(RhB)水溶液的研究[J]. 环境化学, 2007, 26(3): 366-370.

LU Jing, HUANG Li, SHAO Chun-lei, DONG Wen-bo, HOU Hui-qi. DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE[J]. Environmental Chemistry, 2007, 26(3): 366-370.

Citation:

LU Jing, HUANG Li, SHAO Chun-lei, DONG Wen-bo, HOU Hui-qi. DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE[J]. Environmental Chemistry, 2007, 26(3): 366-370.

高铁酸钾氧化降解罗丹明(RhB)水溶液的研究

1.
复旦大学环境科学研究所, 上海, 200433
基金项目:
上海市环境保护科学技术发展基金资助项目:沪环科(05—22).

DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE

1.
Institute of Environmental Science, Fudan University, Shanghai, 200433, China
Fund Project:

摘要: 利用高铁酸钾氧化降解罗丹明(RhB)水溶液.研究表明,pH值、反应时间及K2FeO4投加量等因素对RhB的降解效果均有显著影响.酸性条件有利于RhB的降解,K2FeO4投加量在nK2FeO4:nRhB=2:1时达到最优.pH=2.0时,初始浓度为100mol·l-1的RhB水溶液经K2FeO4氧化5min后,脱色率和CODCr去除率分别为55.64%和24.55%.通过对反应后溶液的荧光光谱分析和GC-MS分析,推测RhB首先被K2FeO4氧化为羟基化RhB阴离子(RhB.OH-),随后进一步被氧化开环.
- 高铁酸钾 /
- 罗丹明 /
- 降解
Abstract: In this paper,we studied the degradation of Rhodamie B(RhB)by use of K2FeO4.The degradation efficiency of RhB was determined as a function of pH,reaction time,initial concentration of K2FeO4.Acid condition,especially pH 2.0 is preferred.Higher degradation efficiency was achieved when the initial of K2FeO4 to RhB was 2:1.After 50 ml of 100 mg·l-1 RhB solution was oxidized by K2FeO4 for 5 min,the decolourisation rate of RhB reached up to 55.64% and CODCr reduced 24.55%.Fluorescence spectrum analysis and GC-MS analysis indicated that RhB was initially oxidized to RhB·OH-and then underwent ring cleavage to small molecules.
- potassium ferrate /
- Rhodamine B /
- degradation

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陆晶, 黄丽, 邵春雷, 董文博, 侯惠奇. 高铁酸钾氧化降解罗丹明(RhB)水溶液的研究[J]. 环境化学, 2007, 26(3): 366-370.

引用本文:

陆晶, 黄丽, 邵春雷, 董文博, 侯惠奇. 高铁酸钾氧化降解罗丹明(RhB)水溶液的研究[J]. 环境化学, 2007, 26(3): 366-370.

LU Jing, HUANG Li, SHAO Chun-lei, DONG Wen-bo, HOU Hui-qi. DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE[J]. Environmental Chemistry, 2007, 26(3): 366-370.

Citation:

LU Jing, HUANG Li, SHAO Chun-lei, DONG Wen-bo, HOU Hui-qi. DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE[J]. Environmental Chemistry, 2007, 26(3): 366-370.

高铁酸钾氧化降解罗丹明(RhB)水溶液的研究

1. 复旦大学环境科学研究所, 上海, 200433

收稿日期: 2006-06-06

基金项目:

上海市环境保护科学技术发展基金资助项目:沪环科(05—22).

关键词:

高铁酸钾 /
罗丹明 /
降解

摘要: 利用高铁酸钾氧化降解罗丹明(RhB)水溶液.研究表明,pH值、反应时间及K2FeO4投加量等因素对RhB的降解效果均有显著影响.酸性条件有利于RhB的降解,K2FeO4投加量在nK2FeO4:nRhB=2:1时达到最优.pH=2.0时,初始浓度为100mol·l-1的RhB水溶液经K2FeO4氧化5min后,脱色率和CODCr去除率分别为55.64%和24.55%.通过对反应后溶液的荧光光谱分析和GC-MS分析,推测RhB首先被K2FeO4氧化为羟基化RhB阴离子(RhB.OH-),随后进一步被氧化开环.

English Abstract

DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE

1. Institute of Environmental Science, Fudan University, Shanghai, 200433, China

Received Date: 2006-06-06

Fund Project:

Keywords:

Abstract: In this paper,we studied the degradation of Rhodamie B(RhB)by use of K2FeO4.The degradation efficiency of RhB was determined as a function of pH,reaction time,initial concentration of K2FeO4.Acid condition,especially pH 2.0 is preferred.Higher degradation efficiency was achieved when the initial of K2FeO4 to RhB was 2:1.After 50 ml of 100 mg·l-1 RhB solution was oxidized by K2FeO4 for 5 min,the decolourisation rate of RhB reached up to 55.64% and CODCr reduced 24.55%.Fluorescence spectrum analysis and GC-MS analysis indicated that RhB was initially oxidized to RhB·OH-and then underwent ring cleavage to small molecules.

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高铁酸钾氧化降解罗丹明(RhB)水溶液的研究

DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE

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高铁酸钾氧化降解罗丹明(RhB)水溶液的研究

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DEGRADATION OF RHODAMINE B SOLUTION WITH POTASSIUM FERRATE

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