Ag/AgCI nanoparticles-modified CdSnO3 center dot 3H(2)O nanocubes photocatalyst for the degradation of methyl orange and antibiotics under visible light irradiation

作者：Yang, Shi Feng; Niu, Cheng Gang^*; Huang, Da Wei^*; Zhang, Huan; Zeng, Guang Ming

来源：Journal of Colloid and Interface Science, 2017, 505: 96-104.

DOI：10.1016/j.jcis.2017.05.108

• Antibiotic
• CdSnO3 center dot 3H(2)O
• Ag/AgCI
• Photocatalysis

CdSnO3 center dot 3H(2)O (CSH) nanocubes modified with Ag/AgCI nanoparticles were constructed via the ultrasonic assisted precipitation-photoreduction method. The obtained samples were characterized using various analytical techniques. Methyl orange (MO), tetracycline (TC), and oxytetracycline hydrochloride (OTC-HCI) were degraded as target pollutants under visible light irradiation to evaluate the photocatalytic activity of the as-prepared samples. Compared with pure CSH and Ag/AgCI nanoparticles, the developed composite of which 5 mL of AgNO3 was added on the synthesis, labelled as 5-Ag/AgCl/CSH, occupied the best photocatalytic activity. The corresponding degradation rate for MO was 94% within 40 min. 94% of TC and 90% of OTC-HCI were also degraded by 5-Ag/AgCI/CSH catalyst within 60 min, respectively. The enhanced photocatalytic activity might arise from the surface plasmon resonance effect of Ag/AgCI nanoparticles and efficient separation of photogenerated electron-hole pairs. Meanwhile, a possible photocatalytic mechanism over 5-Ag/AgCI/CSH sample was proposed based on the experiment and theoretical analysis.

• 出版日期2017-11-1
• 单位湖南大学; 环境保护部华南环境科学研究所