S,W共掺杂球形纳米TiO₂复合材料的制备及太阳光催化性能  

Preparation of S,W-Doped Spherical TiO2 Nanocomposites and Photocatalytic Performance under Sunshine Irradiation

作　　者：鞠一逸 齐美玉 鞠剑峰[1] 

机构地区：[1]南通大学化学化工学院,江苏 南通

出　　处：《物理化学进展》2023年第4期239-245,共7页Journal of Advances in Physical Chemistry

摘　　要：以硫脲为S源、NaWO4·2H2O为W源采用改性溶胶–凝胶法制备S,W共掺杂的球形纳米TiO2复合材料,并以10 mg/L的甲基橙溶液为底物测定了其太阳光催化性能。结果表明,当S,W掺杂质量分数为5%,制备时的焙烧温度为500℃,甲基橙溶液的pH值为4时,复合材料的太阳光催化性能最高,甲基橙溶液太阳光照射6 h降解率达到99.8%。The S,W co-doped spherical TiO2 nanocomposites were prepared by modified sol-gel method using thiourea as a source of S and NaWO4·2H2O as source of W. Photocatalytic activity of the nanocomposites for degradation of methyl orange under sunshine irradiation was studied. The experimental results showed that when the doping amount of S,W is 5%, the TiO2 nanocomposites calcined at 500˚C exhibited the highest photocatalytic activity. The degradation rate of 10 mg L−1 methyl orange solution reached approximately 99.8% under sunshine irradiation for 6 h when the pH value of the methyl solution was 4.

关 键 词：球形TiO₂纳米复合材料 S W共掺杂 改性溶胶凝胶法 太阳光催化性能 

分 类 号：TB3[一般工业技术—材料科学与工程]