title: Rational Design of Zirconium-doped Titania Photocatalysts with Synergistic Brønsted Acidity and Photoactivity.
abstract: The preparation of photocatalysts with high activities under visible-light illumination is challenging. We report the rational design and construction of a zirconium-doped anatase catalyst (S-Zr-TiO2) with Brønsted acidity and photoactivity as an efficient catalyst for the degradation of phenol under visible light. Electron microscopy images demonstrate that the zirconium sites are uniformly distributed on the sub-10 nm anatase crystals. UV-visible spectrometry indicates that the S-Zr-TiO2is a visible-light-responsive catalyst with narrower band gap than conventional anatase. Pyridine-adsorption infrared and acetone-adsorption13C NMR spectra confirm the presence of Brønsted acidic sites on the S-Zr-TiO2sample. Interestingly, the S-Zr-TiO2catalyst exhibits high catalytic activity in the degradation of phenol under visible-light illumination, owing to a synergistic effect of the Brønsted acidity and photoactivity. Importantly, the S-Zr-TiO2shows good recyclability.
authors: Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310028, PR China.
authors: Runyuan
authors: R
authors: Ma
authors: Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310028, PR China. liangwang@zju.edu.cn.
authors: Liang
authors: L
authors: Wang
authors: Shenyang National Laboratory of Materials Science, Chinese Academy of Sciences, Shenyang, 10016, PR China.
authors: Bingsen
authors: B
authors: Zhang
authors: State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Wuhan, 430071, PR China.
authors: Xianfeng
authors: X
authors: Yi
authors: State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Wuhan, 430071, PR China.
authors: Anmin
authors: A
authors: Zheng
authors: State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Wuhan, 430071, PR China.
authors: Feng
authors: F
authors: Deng
authors: Department of Chemical Engineering, Zhejiang University, Hangzhou, 310027, PR China.
authors: Xuhua
authors: X
authors: Yan
authors: Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310028, PR China.
authors: Shuxiang
authors: S
authors: Pan
authors: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
authors: Xiao
authors: X
authors: Wei
authors: School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
authors: Kai-Xue
authors: KX
authors: Wang
authors: Shenyang National Laboratory of Materials Science, Chinese Academy of Sciences, Shenyang, 10016, PR China. dssu@imr.ac.cn.
authors: Dang Sheng
authors: DS
authors: Su
authors: Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310028, PR China. fsxiao@zju.edu.cn.
authors: Feng-Shou
authors: FS
authors: Xiao
mesh_terms: D000143:Acids / Q000737:chemistry; D066241:Carbon-13 Magnetic Resonance Spectroscopy; D002384:Catalysis; D055668:Photochemical Processes; D013056:Spectrophotometry, Ultraviolet; D014025:Titanium / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D000143:Acids; C009495:titanium dioxide; D015040:Zirconium; D014025:Titanium
keywords: heterogeneous catalysis; oxidation; sulfur; titania; zirconium