MoS_2/TiO_2纳米复合材料的制备与可见光光催化性能研究Synthesis and Visible-light Photocatalysis of MoS_2/TiO_2 Compound Materials
孙燕丽;王琼生;王世铭;
摘要(Abstract)：
采用TiO2溶胶-凝胶法制备了复合半导体MoS2/TiO2纳米材料,用XRD、UV-VIS-DRS、BET等手段对样品进行了表征,并以亚甲基蓝染料为探针分子详细讨论了MoS2掺杂量、染料初始浓度等对其光催化性能的影响.结果表明:MoS2/TiO2复合半导体纳米材料具有较好的可见光催化活性;当染料浓度为0.284mmol·L-1,催化剂用量为0.5 g·L-1,亚甲基蓝染料的光催化降解率为96.5%.
关键词(KeyWords)： MoS2/TiO2;可见光;光催化;亚甲基蓝
基金项目(Foundation): 福建省教育厅资助项目(JA09052);; 福州市科技局资助项目(2009-G-110)
作者(Authors): 孙燕丽;王琼生;王世铭;
参考文献(References)：
- [1]Hoffmann M R,Martin S T,Choi W Y,et al.Environmental application of semiconductor photocatalysis[J].Chem Rev,1995,95(1):69-71.
- [2]Bedjal,Kamat P V.Capped semiconductive colloids:synthesis and photoelectro-chemical behavior of TiO2-cappde SnO2nanocrystallites[J].J Phys Chem,1995,99:9182-9188.
- [3]Engweiler J,Harf J,Balker A.WO3/TiO2catalysts prepared by grafting tungaten alkoxides:morphological properties and catalytic behavior in the selective reduction of NO by NH3[J].J Cata,1996,159(2):259-269.
- [4]万李.CdS/TiO2复合半导体薄膜的制备及其光催化性能[J].环境科学研究,2009,22(1):95-98.
- [5]孙爱娟,郭建欣.一步聚合法合成多孔磁性高分子微球及其机理研究[J].应用化工,2011,40(1):75-77.
- [6]Pourabbas B,Jamshidi B.Preparation of MoS2nanoparticles by a modified hydrothermal method and the photo-catalytic activity of MoS2/TiO2hybrids in photo-oxidation of phenol[J].J Chem Eng,2008,138(1):55-62.
- [7]孙燕丽,王世铭,王琼生.溶剂热合成MoS2纳米花的制备与表征[J].无机化学学报,2008,24(6):1003-1006.
- [8]陈非力,王良焱,杨宝山,等.玻璃管负载TiO2光催化反应器去除饮用水中微量有机物的研究[J].太阳能学报,1999,20(4):471-475.
- [9]张世英,游洋.凝胶法制备TiO2连续纤维的形貌与结构[J].硅酸盐学报,2011,39(3):414-418.
- [10]成英之,张渊明,唐渝.WO3-TiO2薄膜型复合光催化剂的制备和性能[J].催化学报,2001,22(2):203-205.
- [11]缪长喜,华伟明.SO2促进多元氧化物固体超强酸研究[J].中国科学(B辑),1996,26(3):275-281.
- [12]Wilcoxon J P,Newcomer P P,Samara G A.Synthesis and optical properties of MoS2and isomorphous nanoclusters in the quantum confinement regime[J].J Appl Phys,1997,81(12):7934-7944.
- [13]Wilcoxon J P.Catalytic photooxidation of pentachlorophenol using semiconductor nanoclusters[J].J Phys Chem B,2000,104(31):7334-7343.
- [14]Huang J M,Laitinen R A,Kelley D F.Spectroscopy and trapping dynamics in WS2nanocluster[J].Phys Rev B,2000,62(16):10995-11005.