Enhanced photocatalytic activity of Bi₂WO₆ with oxygen vacancies by zirconium doping

• Published in: Journal of hazardous materials Vol. 196; pp. 255 - 262
• Main Authors: Zhang, Zhijie, Wang, Wenzhong, Gao, Erping, Shang, Meng, Xu, Jiehui
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 30.11.2011; Elsevier
• Subjects: Adsorption; Applied sciences; Bismuth - chemistry; Catalysis; Catalytic reactions; Charge; Chemical engineering; Chemistry; Doping; Electron Transport; electrons; Exact sciences and technology; General and physical chemistry; hypoxia; Light; Microscopy, Electron, Transmission; oxidation; oxygen; Oxygen - chemistry; phenol; Phenol - isolation & purification; Photocatalysis; photocatalyst; Photocatalysts; Photochemical Processes; Photoelectron Spectroscopy; photolysis; Pollution; Reactors; Rhodamines - isolation & purification; Semiconductors; Solutions; superoxide anion; Surface chemistry; Surface Properties; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Time Factors; Tungsten Compounds - chemistry; Vacancies; X-Ray Diffraction; Zirconium; Zirconium - chemistry; Pollutant behavior; Photocatalysis; doped Bi; Doping; RhB; Design; Persistence; Lifetime; Phenol; Adsorption; Visible radiation; Phenols; Zr; WO; Oxidation; Catalyst; Photochemical degradation; Oxygen vacancy

To overcome the drawback of low photocatalytic efficiency brought by electron–hole recombination, Bi₂WO₆ photocatalysts with oxygen vacancies were synthesized by zirconium doping. The oxygen vacancies as the positive charge centers can trap the electron easily, thus inhibiting the recombination of c...