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One‐Pot Synthesis of Mesoporous Anatase‐TiO 2 (B) Mixed‐Phase Nanowires Decorated with Sulfur and Fe 2 O 3 Nanoparticles for Visible‐Light Photochemical Oxidation
Author(s) -
Zhang Guoliang,
Qin Lei,
Chen Lei,
Xu Zehai,
Liu Mingming,
Guo Xinwen
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.201501036
Subject(s) - anatase , mesoporous material , calcination , nanoparticle , materials science , catalysis , chemical engineering , sulfur , phase (matter) , photocatalysis , visible spectrum , nanotechnology , inorganic chemistry , chemistry , organic chemistry , engineering , metallurgy , optoelectronics
We present a facial one‐pot synthesis method for fabrication of mesoporous anatase‐TiO 2 (B) mixed‐phase nanowires (TNWs) decorated with sulfur and Fe 2 O 3 nanoparticles (NPs). Through one‐pot calcination, control of morphology and crystal phase for TNWs was easily achieved. After calcined at 773 K, mixed‐phase heterostructured TNWs with mesoporous structure and high surface area were obtained. This can not only lead ultrafine NPs well‐disperse in porous matrix, but also greatly enhance interfacial separation and transfer of photo‐induced charges between various planes. Moreover, sulfur doping improved acid/light properties of solid and brought more orbital‐overlapping between active sites and H 2 O 2 . The prepared S‐Fe 2 O 3 /anatase‐TiO 2 (B) TNWs had excellent catalytic ability in visible‐light assisted Fenton oxidation at neutral pH, which was attributed to the synergistic effect of sulfur species, NPs and TNWs. The progresses are valuable in developing highly efficient and green heterogeneous catalysts.