摘要
文章以三氯化钛、氨水为原料,琼脂为反应介质,通过凝胶网格法制备锐钛矿型TiO2纳米粒子,采用XRD、SEM对产品进行了表征;对TiO2光催化氧化处理苯酚类废水溶液进行了研究,讨论了催化剂用量、苯酚质量浓度、脱色时间等因素对降解率的影响。实验表明,TiO2具有良好的光催化活性,可以有效地对苯酚类废水进行降解,纳米TiO2的光催化活性明显高于普通氧化钛。
Using titanium trichloride and ammonia as row materials and agar as a reaction medium,anatase TiO2 nanocrystalline was prepared by adopting gel-network-coprecipitation method.Products were characterized by X-ray diffraction（XRD） and scanning electron microscopy（SEM）.The photocatalytic oxidation properties of TiO2 were examined by the degradation of phenol in aqueous solution.The influencing factors of the degradation rate such as amount of catalyst,the concentration of phenol solution and degradation time were studied.The results indicate that TiO2 has high efficiency in the degradation of phenol in aqueous solution and photocatalytic activity of TiO2 nanocrystalline is obviously higher than that of common TiO2.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第12期1877-1879,共3页
Journal of Hefei University of Technology：Natural Science
基金
江苏省高校自然科学基金资助项目(07KJD150227)
江苏省自然科学基金资助项目(BK2009677)
关键词
TIO2纳米粒子
凝胶网格法
光催化氧化
苯酚类废水
降解
TiO2 nanocrystalline
gel-network-coprecipitation
photocatalytic oxidation
phenol in aqueous solution
degradation
