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腐植酸溶液声化学降解过程中的紫外光谱研究
引用本文:刘岩,王雪梅.腐植酸溶液声化学降解过程中的紫外光谱研究[J].光谱学与光谱分析,2003,23(5):930-932.
作者姓名:刘岩  王雪梅
作者单位:1. 青海大学化工学院,青海,西宁,810016
2. 北京化工大学化工学院,北京,100029
基金项目:环境模拟与污染控制联合实验室(940203)资助
摘    要:研究了腐植酸溶液超声声化学降解过程中近紫外光谱在190-320 nm间的变化,证明超声波对腐植酸有明显的降解作用,并测定了降解过程中不同pH值条件下TOC的变化,对降解过程的自由基氧化历程进行了分析。

关 键 词:超声波  声化学  腐植酸  紫外光谱  TOC削减
文章编号:1000-0593(2003)05-0930-03
修稿时间:2002年4月8日

Ultraviolet Spectra Study on Humic Acid Degradation Process by Sonochemistry
LIU Yan,WANG Xue-mei.Ultraviolet Spectra Study on Humic Acid Degradation Process by Sonochemistry[J].Spectroscopy and Spectral Analysis,2003,23(5):930-932.
Authors:LIU Yan  WANG Xue-mei
Institution:LIU Yan,WANG Xue-mei 1.Institute of Chemical Engineering,Qinghai University,Xining 810016,China 2.Department of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China
Abstract:The changes of ultraviolet spectra in the range of 190-320 nm of the humic acid sonochemical degradation process were studied. The experimental results show that the ultrasound has a high degradability to humic acid. The TOC removel rates in different pH ranges were 896-15%. In the low pH condition, the TOC removel rate is low, however, in the high pH condition, the TOC removel rate is higher. Futhermore, the free radical oxidation process was analyzed.
Keywords:Ultrasound  Sonochemistry  Hurhic acid  Ultraviolet spectra  TOC removel
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