光催化氧化处理过程中渗滤液溶解性有机物组分的三维荧光光谱变化特征

引用本文: 贾陈忠, 王焰新, 张彩香. 光催化氧化处理过程中渗滤液溶解性有机物组分的三维荧光光谱变化特征[J]. 分析化学, 2012, 40(11): 1740-1746. doi: 10.3724/SP.J.1096.2012.20409 shu

Citation: JIA Chen-Zhong, WANG Yan-Xing, ZHANG Cai-Xiang. Variation Characteristics of 3D-Excition Emission Matrix Fluorescence Spectra of Dissolved Organic Matter from Landfill Leachate during Photocatalytic Degradation[J]. Chinese Journal of Analytical Chemistry, 2012, 40(11): 1740-1746. doi: 10.3724/SP.J.1096.2012.20409 shu

光催化氧化处理过程中渗滤液溶解性有机物组分的三维荧光光谱变化特征

贾陈忠 ^{1,
,} ,
王焰新 ^2, ,
张彩香 ^2,

通讯作者: 贾陈忠

基金项目:
本文系国家自然科学基金项目(No. 40972156) (No. 40972156)

中国地质大学(武汉)生物地质与环境地质教育部重点实验室开放项目(No. BGEGF200820) (武汉)生物地质与环境地质教育部重点实验室开放项目(No. BGEGF200820)

长江大学博士科研启动基金项目资助

摘要: 采用三维荧光光谱分析技术研究了垃圾渗滤液DOM不同组分的光催化转化特征。结果表明,憎水性碱(HOB)、憎水中性(HON)、憎水性酸(HOA)、亲水性酸(HIA)、亲水性碱(HIB)和亲水中性(HIN)组分在光催化处理过程中荧光光谱发生显著变化,HIA组分相对稳定。各组分中代表类腐殖酸区域的荧光信号在处理过程中变化最大,处理60 h后,该区域荧光峰完全消失,说明类腐殖酸类物质能优先发生光催化降解。在72 h光催化处理液中,主要残留可见区富里酸、类色氨酸和类酪氨酸的荧光信号,其中代表类蛋白的类色氨酸和类酪氨酸类物质占主要部分,说明光催化氧化能将大分子的腐殖酸和富里酸降解为小分子的类蛋白物质。

关键词:

English

Variation Characteristics of 3D-Excition Emission Matrix Fluorescence Spectra of Dissolved Organic Matter from Landfill Leachate during Photocatalytic Degradation

1.
¹ College of Chemical and Environmental Engineering, Yangtze University, Jingzhou 434023, China;

Corresponding author: 贾陈忠

Received Date: 18 April 2012
Fund Project:
本文系国家自然科学基金项目(No. 40972156)

中国地质大学(武汉)生物地质与环境地质教育部重点实验室开放项目(No. BGEGF200820)

长江大学博士科研启动基金项目资助

Abstract: Three-dimensional excitation emission matrix fluorescence spectroscopy (3D-EEMs) was applied to analyze the variation characteristics of dissolved organic matter (DOM) six fractions in landfill leachate during photocatalytic degradation. The results showed that fluorescence spectroscopy of hydrophobic acids (HOA), hydrophobic bases (HOB), hydrophobic neutral traction (HIB), hydrophobic neutral fraction (HON) and hydrophilic neutral fraction (HIN) changed considerably, and that of HIA was relatively steady during photocatalytic process. In general, fluorescence peaks of humic acids-like had the most significant change during photocatalytic treatment process, and disappeared entirely after 60 h treatment, which implied that humic acids-like can be degraded preferentially. In 72 h effluent, VIS fulvic-like, tryptophan-like and tyrosine-like were residual in the fluorescence regions, and the last two were predominant fractions. These results indicated that macromolecular fulvic-like and humic acids-like can be degraded into micro-molecular protein-like matters.

Key words:

Landfill leachate
/ Dissolved organic matter
/ Photocatalysis
/ Fraction
/ Three dimentional excitation emission matrix fluorescence spectroscopy

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

光催化氧化处理过程中渗滤液溶解性有机物组分的三维荧光光谱变化特征

通讯作者: 贾陈忠

English

Variation Characteristics of 3D-Excition Emission Matrix Fluorescence Spectra of Dissolved Organic Matter from Landfill Leachate during Photocatalytic Degradation

Corresponding author: 贾陈忠

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

光催化氧化处理过程中渗滤液溶解性有机物组分的三维荧光光谱变化特征

通讯作者: 贾陈忠

English

Variation Characteristics of 3D-Excition Emission Matrix Fluorescence Spectra of Dissolved Organic Matter from Landfill Leachate during Photocatalytic Degradation

Corresponding author: 贾陈忠

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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