Enhanced visible-light-driven photocatalytic activity of mesoporous TiO(2-x)N(x) derived from the ethylenediamine-based complex.

Journal article

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: Jiang, Z; Kong, L; Alenazey, F; Qian, Y; France, L

• Publication status: Published
• Journal: Nanoscale
• Volume: 5
• Issue: 12
• Pages: 5396-5402
• Publication date: 2013-06-01
• DOI: 10.1039/c3nr00344b
• EISSN: 2040-3372
• ISSN: 2040-3364
• Language: English
• Keywords: Titanium; Surface Properties; Ethylenediamines; Light; Catalysis; Nitrogen; Ethanol; Solar Energy; Porosity; Temperature