Study on Adsorption of HA on TiO2 Film from Aqueous Solution
Humic acid (HA) was considered to be the main precursor of disinfection by-products (DBPs) in chlorination. In this study, an effective and economic method of preparing TiO2 film was successfully developed for adsorption of HA. The crystal structure and surface morphology of theTiO2 film were characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM). The effects of some factors such as the temperature, pH value of the solution, and initial concentration of HA on the extent of HA adsorption from aqueous solution were systematically investigated. The analytical results showed that the adsorption of HA was enhanced on the film at low temperature under acidic condition. The adsorption efficiency increased with increasing initial concentration, bias voltage and the area of the TiO2 film. The adsorptive thermoisopleth curve of HA on TiO2 film can be fitted by Freundlich thermoisopleth adsorption equation. The adsorption reaction complied with Lagergren second-order adsorptive kinetics model
Yanli Jiang Lijuan Yang Hua Lin Huiling Liu Zhaohua Jiang
Dept.Of Environmental Engineering Harbin Institute of Technology Harbin , P.R.China Dept.Of Applied Dept.Of Life Science and Chemistry, Harbin University Harbin , P.R.China Dept.Of Life Science and Chemistry,Harbin University Harbin , P.R.China Dept.Of Environmental Engineering Harbin Institute of Technology Harbin , P.R.China Dept.of Environmental Engineering Harbin Institute of Technology Harbin , P.R.China Dept.of Applied
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）