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环境化学  2015 

CdS-TiO2复合光催化剂可见光下降解黄连素

Keywords: 硫化镉,二氧化钛,复合催化剂,可见光,黄连素

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Abstract:

采用沉积法制备CdS-TiO2复合光催化剂,利用UV-VisDRS、XRD等方法对其进行表征,并在可见光下对黄连素废水进行处理,考察了催化剂投加量、黄连素初始浓度、黄连素初始pH值对黄连素去除率的影响.研究结果表明,在常温下制备的CdS-TiO2复合光催化剂,对可见光有较好的响应能力;在催化剂投加量1.5g·L-1,黄连素初始浓度80mg·L-1的条件下,催化剂对黄连素的去除效果显著,可达80%以上.pH对反应的影响不大.该催化剂循环使用3次仍具有较高的光催化活性与化学稳定性.

References

[1]  Jang Jum Suk, Kim Hyun Gyu, Joshi Upendra A, et al. Fabrication of CdS nanowires decorated with TiO2 nanoparticles for photocatalytic hydrogen production under visible light irradiation[J]. International Journal of Hydrogen Energy, 2008,33(21):5975-5980
[2]  Park Hyunwoong, Choi Wonyong, Hoffmann Michael R. Effects of the preparation method of the ternary CdS/TiO2/Pt hybrid photocatalysts on visible light-induced hydrogen production[J]. Journal of Materials Chemistry, 2008, 18(20):2379-2385
[3]  Daskalaki Vasileia M, Antoniadou Maria, Puma Gianluca Li, et al. Solar light-responsive Pt/CdS/TiO2 photocatalysts for hydrogen production and simultaneous degradation of inorganic or organic sacrificial agents in wastewater[J]. Environmental Science & Technology, 2010, 44(19):7200-7205
[4]  Wang Zhiyu,Yu Zhongping,Liu Bo, et al. Sonochemical synthesis of core/Shell structured CdS/TiO2 nanocrystals composites[J]. Chemistry and Materials Science, 2009, 24(5):698-701
[5]  周强,苑宝玲,许东兴,等. CdS/TiO2纳米管可见光催化剂的制备、表征及光催化活性[J]. 催化学报,2012,33(5):850-856
[6]  Yan H J, Yang J H, Ma G J, et al. Visible-light-driven hydrogen production with extremely high quantum efficiency on Pt-PdS/CdS photocatalyst[J]. Journal of Catalysis, 2009, 266(2):165-168
[7]  屠鹏飞, 贾存勤, 张洪全. 大孔吸附树脂在中药新药研究和生产中的应用[J]. 世界科学技术: 中医药现代化,2004,6(3):22-28
[8]  李向东, 于洪锋, 冯启言. 水解-好氧处理制药废水的试验研究[J]. 工业水处理, 2005,25(4):32-34
[9]  冯光建, 刘素文, 修志亮, 等. 可见光响应型TiO2光催化剂的机理研究进展[J]. 稀有金属材料与工程, 2009,38(1):185-188
[10]  Spanhel Lubomir, Weller Horst, Henglein Arnim. Photochemistry of semiconductor colloids. 22. Electron injection from illuminated CdS into attached TiO2 and ZnO particles[J]. Journal of the American Chemical Society, 1987,109(22):6632-6635
[11]  Jang Jum Suk, Ji Sang Min, Bae Sang Won, et al. Optimization of CdS/TiO2 nano-bulk composite photocatalysts for hydrogen production from Na2S/Na2SO3 aqueous electrolyte solution under visible light (λ≥420 nm) [J]. Journal of Photochemistry and Photobiology A: Chemistry, 2007, 188(1):112-119
[12]  Baker David R, Kamat Prashant V. Photosensitization of TiO2 nanostructures with CdS quantum dots: Particulate versus tubular support architectures[J]. Advanced Functional Materials, 2009, 19(5):805-811
[13]  So Won-Wook, Kim Kwang-Je, Moon Sang-Jin. Photo-production of hydrogen over the CdS-TiO2 nano-composite particulate films treated with TiCl4[J]. International Journal of Hydrogen Energy, 2004, 29(3):229-234
[14]  Wang C Y, Shang H M, Tao Y, et al. Properties and morphology of CdS compounded TiO2 visible-light photocatalytic nanofilms coated on glass surface[J]. Separation and Purification Technology, 2003, 32(1/3):357-362
[15]  Fan Y Z, Chen G P, Li D M, et al. Enhancement of photocatalytic H2 evolution on hexagonal CdS by a simple calcination method under visible light irradiation[J]. Materials Research Bulletin, 2011,46(12):2338-2341
[16]  王浩红. 反微乳液法制备TiO2/CdS/FemOn及其光催化降解亚甲基蓝研究[D].上海: 华东师范大学硕士论文,2004

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