화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.22, No.2, 91-96, February, 2012
DOI10.3740/MRSK.2012.22.2.91  Export Citation
Photocatalytic Performance of ZnS and TiO2 Supported on AC Under Visible Light Irradiation
Ze-Da Meng, Sun-Bok Cho, Trisha Ghosh, Lei Zhu, Jong-Geun Choi, Chong-Yeon Park, and Won-Chun Oh1, †
  • Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Korea
  • 1Department of Advanced Materials & Science Engineering, Hanseo University, Chungnam 356-706, Korea
E-mail:
AC and ZnS modified TiO2 composites (AC/ZnS/TiO2) were prepared using a sol-gel method. The composite obtained was characterized by Brunauer-Emmett-Teller (BET) surface area measurements, X-ray diffraction (XRD), energy dispersive X-ray (EDX) analysis, scanning electron microscope (SEM) analysis, and according to the UV-vis absorption spectra (UV-vis). XRD patterns of the composites showed that the AC/ZnS/TiO2 composites contain a typical single and clear anatase phase. The surface properties as observed by SEM present the characterization of the texture of the AC/ZnS/TiO2 composites, showing a homogenous composition in the particles showing the micro-surface structures and morphology of the composites. The EDX spectra of the elemental identification showed the presence of C and Ti with Zn and S peaks for the AC/ZnS/TiO2 composite. UV-vis patterns of the composites showed that these composites had greater photocatalytic activity under visible light irradiation. A rhodamine B (Rh.B) solution under visible light irradiation was used to determine the photocatalytic activity. The degradation of Rh.B was determined using UV/Vis spectrophotometry. An increase in the photocatalytic activity was observed. From the photocatalytic results, the excellent activity of the Y-fullerene/TiO2 composites for the degradation of methylene blue under visible irradiation could be attributed to an increase in the photo-absorption effect caused by the ZnS and to the cooperative effect of the AC.
Keywords:ZnS;TiO2;visible light;UV-Vis;Rh.B
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