title: Enhanced visible-light-driven photocatalytic activity of mesoporous TiO(2-x)N(x) derived from the ethylenediamine-based complex.
abstract: A facile solvent evaporation induced self-assembly (SEISA) strategy was developed to synthesize mesoporous N-doped anatase TiO2 (SE-meso-TON) using a single organic complex precursor derived in situ from titanium butoxide and ethylenediamine in ethanol solution. After the evaporation of ethanol in a fume hood and subsequent calcinations at 450 °C, the obtained N-doped TiO2 (meso-TON) anatase was of finite crystallite size, developed porosity, large surface area (101 m(2) g(-1)) and extended light absorption in the visible region. This SE-meso-TON also showed superior photocatalytic activity to the SG-meso-TON anatase prepared via sol-gel synthesis. On the basis of characterization results from XRD, XPS, N2 adsorption-desorption and ESR, the enhanced visible-light-responsive photocatalytic activity of SE-meso-TON was assigned to its developed mesoporosity and reduced oxygen vacancies.
authors: Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, UK. zhjiang76@hotmail.com
authors: Zheng
authors: Z
authors: Jiang
authors: Liang
authors: L
authors: Kong
authors: Feraih Sh
authors: FSh
authors: Alenazey
authors: Yangdong
authors: Y
authors: Qian
authors: Liam
authors: L
authors: France
authors: Tiancun
authors: T
authors: Xiao
authors: Peter P
authors: PP
authors: Edwards
mesh_terms: D002384:Catalysis; D000431:Ethanol / Q000737:chemistry; D005029:Ethylenediamines / Q000737:chemistry*; D008027:Light; D009584:Nitrogen / Q000737:chemistry*; D016062:Porosity; D012993:Solar Energy; D013499:Surface Properties; D013696:Temperature; D014025:Titanium / Q000737:chemistry*
chemical_list: D005029:Ethylenediamines; C009495:titanium dioxide; D000431:Ethanol; C031234:ethylenediamine; D014025:Titanium; D009584:Nitrogen