Theoretical and experimental study of La/Ni co-doped SrTiO3 photocatalyst

✍ Scribed by Fei Li; Kai Yu; Lan-Lan Lou; Zhiqian Su; Shuangxi Liu

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 478 KB
• Volume: 172
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/j.mseb.2010.04.036

✦ Synopsis

The effects of Ni and La co-doping on the electronic structure of SrTiO 3 were investigated by theoretical (DFT) and experimental work. The calculation results revealed that doping sites of La and Ni impurities had a great influence on geometric structure and electronic properties of SrTiO 3 . Pure SrTiO 3 and doped SrTiO 3 were synthesized through citrate sol-gel method. The as-synthesized photocatalysts were characterized by XRD, UV-visible absorption spectroscopy and nitrogen adsorption, and employed to degrade methylene blue. La/Ni co-doped SrTiO 3 exhibited the highest activity. The experimental results were in good agreement with the calculation results.