摘要
目的以电气石微球为载体,采用溶胶-凝胶法制备掺杂磷的纳米二氧化钛光催化材料水中6种邻苯二甲酸酯(PAEs)进行降解。方法用X射线衍射对负载型P-TiO_2光催化剂进行分析。以6种PAEs为降解对象,考察热处理温度、磷掺杂量及反应温度对TiO_2光催化活性的影响。结果 P掺杂量为6%,500℃烧结4个小时光催化活性最佳。结论负载型P-TiO_2对水中6种PAEs具有较好的光催化降解效果。
[Objective]To prepare the supported P-doped titanium dioxide（P-TiO_2） photocatalyst with the tourmaline microspheres as carrier, degrade 6 kinds of phthalic acid esters（PAEs） in drinking water.[Methods] The structure of the composite samples was investigated by X-ray diffraction. Through the degradation of six PAEs, the influence of calcining temperature,phosphorus doping j and reaction temperature on photocatalytic activity of TiO_2 was analyzed.[Results]The photocatalytic activity was the best in the conditions of mole fraction of P-doped 6% and calcined at 500 ℃ for 4 hours.[Conclusion]The supported P-TiO_2 has good photocatalytic activity on the degradation of six PAEs in water.
作者
魏麟欢
宋月
郭维静
王小静
WEI Lin-huan;SONG Yue;GUO Wei-jing;WANG Xiao-jing(Physicochemical Laboratory, Dalian Center for Disease Control and Prevention, Dcdian Liaoning, 116021, China)
出处
《职业与健康》
CAS
2018年第6期745-748,752,共5页
Occupation and Health
关键词
电气石
磷掺杂
二氧化钛
光催化
邻苯二甲酸酯
Tourmaline
P-doped
Titanium dioxide
Photocatalyst
Phthalic acid esters
