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二氧化钛光催化降解苯酚废水溶液

Study on photo-catalytic degradation of phenol wastewater by TiO₂ suspension

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【Author】 WANG Li-ping1,CHEN Zhi-hong1,GUO Feng2,YANG Nuo1(1.School of Environmental Science and Engineering,Chang’an University,Xi’an 710054,China;2.Shaanxi Environment Monitoring Central Station,Xi’an 710054,China)

【机构】长安大学环境科学与工程学院；陕西省环境监测中心站；

【摘要】以钛酸丁酯为原料,利用溶胶-凝胶法制备了TiO2粉体材料,采用静态体系,以苯酚为降解对象,研究了TiO2光催化活性。结果表明,苯酚浓度为20 mg/L和弱酸性条件下,当光照时间为10 h,苯酚的光催化降解率为91.2%。另外,经过水或者0.2%NaOH处理过的TiO2可重复利用。更多还原

【Abstract】 The titanium dioxide was prepared with TNB which is the former material in the sol-gel process.Taking phenol as the degeneration object,the TiO2 photochemical catalytic activity in static system was studied.The conclusion is as follows:when the concentration of phenol was 20 mg/L and the illumination time was 10 h,the phenol photochemical catalysis degeneration rate was 91.2% under the acidic condition.And dealing with TiO2 by water or 0.2% NaOH,the catalytic activity of TiO2 can be reused.更多还原