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Bi 2 O 3 as a Promoter for Cu/TiO 2 Photocatalysts for the Selective Conversion of Carbon Dioxide into Methane
Author(s) -
Jeong Sunil,
Kim Whi Dong,
Lee Sooho,
Lee Kangha,
Lee Seokwon,
Lee Dongkyu,
Lee Doh C.
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201600099
Subject(s) - methane , carbon dioxide , photocatalysis , nanoparticle , materials science , phase (matter) , carbon fibers , gas phase , titanium dioxide , inorganic chemistry , catalysis , chemical engineering , chemistry , nanotechnology , organic chemistry , metallurgy , composite number , engineering , composite material
A significantly enhanced gas‐phase photocatalytic conversion of carbon dioxide into methane on Cu/TiO 2 nanoparticles upon introducing Bi 2 O 3 as a promoter in the vicinity of Cu was observed. The maximum rate of CH 4 generation of 11.90 μmol g −1 h −1 recorded in the case of Cu‐Bi 2 O 3 /TiO 2 is approximately one order of magnitude higher than that obtained with Cu/TiO 2 nanoparticles. The enhanced performance was attributed to facilitated migration of CO* from Cu to the Bi 2 O 3 surface.