陕西科技大学学报（自然科学版）2011，Vol.29Issue(5)：9-13,5.
纳米TiO2薄膜光催化处理造纸废水的研究
STUDY ON THE PHOTO CATALYTIC ACTIVITY OF THE ANATASE TiO2 FILMS IN DECOMPOSING PAPERMAKING WASTEWATER
刘存海 1喻莹1
作者信息
- 1. 教育部轻化工助剂化学与技术重点实验室,陕西科技大学化学与化工学院,陕西西安 710021
- 折叠
摘要
Abstract
The anatase TiO2 films were prepared on glass substrates through sol-gel method. The phase, morphology and optical property of as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy and UV-vis absorption spectra analyses; the photo catalytic activity in decomposing papermaking wastewater under the radiation of ultraviolet lamp were also investigated by measuring COD of the wastewater before and after treatment; and the-effects of initial concentrations of wastewater, pH values and radiation time on the decomposing were systematically studied. The results indicate that COD of wastewater can be reduced by 89. 5% with a concentration of wastewater between 900 mg/L and 2 700 mg/L, pH of 3. 5, and radiation time of 2. 5 h at 25 °C.关键词
溶胶-凝胶/TiO2膜/光催化反应/化学需氧量(COD)Key words
sol-gel method/ TiO2 films/ photocatalytic reaction/ COD分类
通用工业技术引用本文复制引用
刘存海,喻莹..纳米TiO2薄膜光催化处理造纸废水的研究[J].陕西科技大学学报（自然科学版）,2011,29(5):9-13,5.
