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. (C) 2017 Published by Elsevier Inc.