New Visible‐Light Pt/PbS Nanoparticle Photocatalysts for the Photocatalytic Oxidation of Thiophene

Wiley - Tập 43 Số 3 - Trang 421-426 - 2015
Reda M. Mohamed1,2,3, Elham S. Aazam2
1Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia
2Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
3Nanostructured Material Division Advanced Materials Department, Central Metallurgical R&D Institute, Helwan, Cairo, Egypt

Tóm tắt

AbstractPbS nanoparticles were prepared using a hydrothermal route, and Pt was deposited onto the PbS nanoparticles via a photo‐assisted deposition route. The photocatalytic performances of the PbS and Pt/PbS samples were examined for the photocatalytic oxidation of thiophene under visible light. Deposition of Pt onto the surface of PbS led to a shift in the absorption of PbS to a higher wavelength (red shift). The 0.15 wt% Pt/PbS nanoparticles had the highest photocatalytic efficiency % (100%) for the degradation of thiophene under visible light after 40 min of reaction time. The 0.15 wt% Pt/PbS nanoparticles can be used six times for the degradation of thiophene without a loss of photocatalytic activity.

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Wiley

Tập 43 Số 3

421-426

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