分析化学2012，Vol.40Issue(11)：1740-1746,7.DOI:10.3724/SP.J.1096.2012.20409
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
Variation Characteristics of 3D-Excition Emission Matrix Fluorescence Spectra of Dissolved Organic Matter from Landfill Leachate during Photocatalytic Degradation
摘要
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.关键词
垃圾渗滤液/溶解性有机物/光催化氧化/组分/三维荧光光谱Key words
Landfill leachate/ Dissolved organic matter/ Photocatalysis/ Fraction/ Three dimentional excitation emission matrix fluorescence spectroscopy引用本文复制引用
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):1740-1746,7.基金项目
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)和长江大学博士科研启动基金项目资助 （No.40972156）
