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New Visible‐Light Pt/PbS Nanoparticle Photocatalysts for the Photocatalytic Oxidation of Thiophene
Author(s) -
Mohamed Reda M.,
Aazam Elham S.
Publication year - 2015
Publication title -
clean – soil, air, water
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 66
eISSN - 1863-0669
pISSN - 1863-0650
DOI - 10.1002/clen.201400115
Subject(s) - photocatalysis , thiophene , visible spectrum , nanoparticle , materials science , photochemistry , hydrothermal circulation , deposition (geology) , degradation (telecommunications) , chemical engineering , nuclear chemistry , catalysis , nanotechnology , chemistry , organic chemistry , optoelectronics , paleontology , telecommunications , sediment , computer science , engineering , biology
Abstract PbS 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.