( CdS / TiO2 )/MCM-41 loaded nanometer photocatalyst was prepared by the sol-gel method and dipping process, the photocatalytic degradation of methyl thionine chloride in water was investigated by using the photocatalyst. The experimental results show that the optimum concentration of CdS over TiO2 was 3% ( molar ratio ), the photocatalytic activity was enhanced when making TiO2 the anatase phase with a rise of the roasting temperature, and the carrier, mesoporous molecular sieve MCM- 41, was beneficial to improving the photocatalytic activity of TiO2 for photocatalytic degradation of methyl thionine chloride. The morphology and the crystalline phase of the photocatalyst were discussed by means of XRD and SEM techniques, and the reaction mechanism of catalytic properties was also discussed.
参考文献
| [1] | Sarah Pilkenton;Daniel Raftery .Solid-state NMR studies of the adsorption and photo oxidation of ethanol on mixed TiO{sub}2-SnO{sub}2 photocatalysts[J].Solid State Nuclear Magnetic Resonance,2003(4):236-253. |
| [2] | T.A.McMurray;J.A.Byrne;P.S.M.Dunlop;B.R.Eggins;E.T.McAdams;J.G.M.Winkelman .Intrinsic kinetics of photocatalytic oxidation of formic and oxalic acid on immobilised TiO_2 films[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2004(1):105-110. |
| [3] | K.Nagaveni;G.Sivalingam;M.S.Hegde;Giridhar Madras .Solar photocatalytic degradation of dyes:high activity of combustion synthesized nano TiO_2[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2004(2):83-93. |
| [4] | Kambala Venkata Subba Rao;Bernadette Lavedrine;Pierre Boule .Influence of metallic species on TiO_2 for the photocatalytic degradation of dyes and dye intermediates[J].Journal of Photochemistry and Photobiology, A. Chemistry,2003(2/3):189-193. |
| [5] | Chitose Norihisa;Ueta Shinzo;Seino Satoshi et al.Radiolysis of Aqueous Phenol Solutions with Nanoparticles:Phenol Degradation and TOC Removal in Solutions Containing TiO2 Induced by UV,γ-Ray and Electron Beams[J].Chemosphere,2003,50(08):1007-1013. |
| [6] | Andrzej Sobczynski;Lukasz Duczmal;Wojciech Zmudzinski .Phenol destruction by photocatalysis on TiO_2:an attempt to solve the reaction mechanism[J].Journal of molecular catalysis, A. Chemical,2004(2):225-230. |
| [7] | X L Zhu;X G Feng;C W Yuan et al.Photocatalytic Degradation of Pesticide Pyridaben in Suspension of TiO2:Identification of Intermediates and Degradation Pathways[J].JOURNAL OF MOLECULAR CATALYSIS A:CHEMICAL,2002,214(02):293-300. |
| [8] | Malato S;Blanco J;Cáceres J et al.Photocatalytic Treatment of Water-soluble Pesticides by Photo-Fenton and TiO2 Using Solar Energy[J].Catalysis Today,2002,76(2-4):209-220. |
| [9] | 黄艳娥,琚行松.纳米二氧化钛光催化降解水中有机污染物的研究[J].现代化工,2001(04):45-48. |
| [10] | Y. Bessekhouad;D. Robert;J. V. Weber .Bi_2S_3/TiO_2 and CdS/TiO_2 heterojunctions as an available configuration for photocatalytic degradation of organic pollutant[J].Journal of Photochemistry and Photobiology, A. Chemistry,2004(3):569-580. |
| [11] | Chun Hu;Yuchao Tang;Jimmy C.Yu;Po Keung Wong .Photocatalytic degradation of cationic blue X-GRL adsorbed on TIo_2/SiO_2 photocatalyst[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2003(2):131-140. |
| [12] | 郑珊,高濂,张青红,郭景坤.TiO2修饰MCM-41的结构表征及光催化苯酚降解活性[J].催化学报,2001(02):206-208. |
| [13] | 郑珊,高濂,郭景坤.光沉积法合成纳米金属Pd负载的MCM-TiO2及其光催化性质研究[J].高等学校化学学报,2002(06):1126-1130. |
| [14] | 李芳柏,古国榜,李新军,万洪富.纳米复合Sb2O3/TiO2的光催化性能研究[J].无机化学学报,2001(01):37-42. |
| [15] | 刘孝恒,李丹,梁春香,杨绪杰,陆路德,汪信.水玻璃相中制备纳米CdS及结构表征[J].北京大学学报(自然科学版),2001(02):231-234. |
| [16] | 葛树勋,杨春.乙二胺介质中MCM-41的合成及其水热稳定性[J].石油学报(石油加工),2002(04):78-84. |
| [17] | 高伟,吴凤清,罗臻,富菊霞,王德军,徐宝琨.TiO2晶型与光催化活性关系的研究[J].高等学校化学学报,2001(04):660-662. |
| [18] | 菅盘铭,夏亚穆,李德宏,王晓燕.掺杂TiO2纳米粉的合成、表征及催化性能研究[J].催化学报,2001(02):161-164. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%