Interaction of humic substances and hematite:FTIR study  

作　　者：FUHong-bo QUANXie CHENShuo ZHAOHui-min ZHAOYa-zhi 

机构地区：[1]SchoolofEnvironmentalandBiologicalScienceandTechnology,DalianUniversityofTechnology,Dalian116023,China

出　　处：《Journal of Environmental Sciences》2005年第1期43-47,共5页环境科学学报（英文版）

基　　金：TheNationalNaturalScienceFoundationofChina(No.20177003)

摘　　要：The present work extended the knowledge on the binding and complexation of humic substances(humic acid or fulvic acid) and hematite by Fourier transform infrared spectroscopy(FTIR). The FTIR data gained gave the consist evidences by two different sampling preparation methods that the interaction mechanism between humic substances and hematite was mainly conform to the ligand exchange involving carboxylic functional groups of humic substances and the surfaces sites of hematite. The present method, although associated with some uncertainties, provided an opportunity to increase the knowledge in this field.The present work extended the knowledge on the binding and complexation of humic substances(humic acid or fulvic acid) and hematite by Fourier transform infrared spectroscopy(FTIR). The FTIR data gained gave the consist evidences by two different sampling preparation methods that the interaction mechanism between humic substances and hematite was mainly conform to the ligand exchange involving carboxylic functional groups of humic substances and the surfaces sites of hematite. The present method, although associated with some uncertainties, provided an opportunity to increase the knowledge in this field.

关 键 词：humic substances fulvic acid humic acid HEMATITE FTIR COMPLEX 

分 类 号：X131[环境科学与工程—环境科学] P59[天文地球—地球化学]