کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1277202 | 1497568 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Study on photocatalytic performance for hydrogen evolution over CdS/M-MCM-41 (M = Zr, Ti) composite photocatalysts under visible light illumination Study on photocatalytic performance for hydrogen evolution over CdS/M-MCM-41 (M = Zr, Ti) composite photocatalysts under visible light illumination](/preview/png/1277202.png)
A series of CdS/M(x)-MCM-41 (M = Zr, Ti, x stands for molar ratio of M/Si) photocatalysts were preprared by hydrotherm, ion-exchange and sulfidation process. The catalysts were characterized by X-ray diffraction, UV–vis spectra and N2 adsorption–desorption isotherm et al. The characterization results shown that Zr or Ti was successfully doped into the mesoporous of MCM-41, and CdS was also successfully incorporated into such modified mesoporous. The results of photocatalytic performance for hydrogen production shown that CdS/Zr(0.005)-MCM-41 and CdS/Ti(0.02)-MCM-41 had the highest hydrogen evolution activity in triethanolamine aqueous solution under visible light (λ > 430 nm) irradiation, which can be explained by the diffusion velocity of the reactants and resultants and the protection which MCM-41 provided for CdS.
► CdS was successfully incorporated into M(x)-MCM-41.
► The photocorrosion of CdS had been solved availably.
► Photocatalytic activity was further enhanced by Zr and Ti doping.
► Hydrogen evolution and pollutant degradation were achieved at the same time.
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 1, January 2012, Pages 816–821