TY - GEN
T1 - Degradation of methylene blue (MB) using ZnO/CeO2/nanographene platelets (NGP) photocatalyst
T2 - 2nd International Symposium on Current Progress in Mathematics and Sciences 2016, ISCPMS 2016
AU - Tju, H.
AU - Shabrany, H.
AU - Taufik, A.
AU - Saleh, Rosari
N1 - Publisher Copyright:
© 2017 Author(s).
PY - 2017/7/10
Y1 - 2017/7/10
N2 - ZnO/CeO2 photocatalysts were loaded on to nanographene platelets (NGP) layer sheets to form ZnO/CeO2/NGP composites. The synthesized process was achieved by using two-step methods: Sol-gel followed by the hydrothermal method, the concentration of NGP was varied by 5, 10, and 15 wt.%. The as-prepared ZnO/CeO2/NGP samples were characterized by X-ray diffraction (XRD) and Brunner Emett-Teller (BET). The XRD spectra of all samples exhibit a good agreement with hexagonal wurtzite ZnO and face centered cubic phase of CeO2, additionally a new peak could be indexed for graphitic-like structures from NGP. The BET result shows that the incorporation of NGP could enhance the specific surface area of ZnO/CeO2 composites. Furthermore, it is found that addition of NGP in ZnO/CeO2 composites could enhance photocatalytic activities in methylene blue (MB) dye degradation compared to ZnO/CeO2 composites. Our results show that addition of 10 wt.% NGP to ZnO/CeO2 composites exhibits the highest photocatalytic activity. The enhancement of photocatalytic activities can be ascribed to the function of NGP as trap state for the electron. The scavenger tests results indicated that the photo-generated hole would play an important role in the degradation of MB.
AB - ZnO/CeO2 photocatalysts were loaded on to nanographene platelets (NGP) layer sheets to form ZnO/CeO2/NGP composites. The synthesized process was achieved by using two-step methods: Sol-gel followed by the hydrothermal method, the concentration of NGP was varied by 5, 10, and 15 wt.%. The as-prepared ZnO/CeO2/NGP samples were characterized by X-ray diffraction (XRD) and Brunner Emett-Teller (BET). The XRD spectra of all samples exhibit a good agreement with hexagonal wurtzite ZnO and face centered cubic phase of CeO2, additionally a new peak could be indexed for graphitic-like structures from NGP. The BET result shows that the incorporation of NGP could enhance the specific surface area of ZnO/CeO2 composites. Furthermore, it is found that addition of NGP in ZnO/CeO2 composites could enhance photocatalytic activities in methylene blue (MB) dye degradation compared to ZnO/CeO2 composites. Our results show that addition of 10 wt.% NGP to ZnO/CeO2 composites exhibits the highest photocatalytic activity. The enhancement of photocatalytic activities can be ascribed to the function of NGP as trap state for the electron. The scavenger tests results indicated that the photo-generated hole would play an important role in the degradation of MB.
UR - http://www.scopus.com/inward/record.url?scp=85026236882&partnerID=8YFLogxK
U2 - 10.1063/1.4991141
DO - 10.1063/1.4991141
M3 - Conference contribution
AN - SCOPUS:85026236882
T3 - AIP Conference Proceedings
BT - International Symposium on Current Progress in Mathematics and Sciences 2016, ISCPMS 2016
A2 - Sugeng, Kiki Ariyanti
A2 - Triyono, Djoko
A2 - Mart, Terry
PB - American Institute of Physics Inc.
Y2 - 1 November 2016 through 2 November 2016
ER -