Fabrication of potato-like silver molybdate microstructures for photocatalytic degradation of chronic toxicity ciprofloxacin and highly selective electrochemical detection of H₂O₂.

ABSTRACT: In the present work, potato-like silver molybdate (Ag₂MoO₄) microstructures were synthesized through a simple hydrothermal method. The microstructures of Ag₂MoO₄ were characterized by various analytical and spectroscopic techniques such as XRD, FTIR, Raman, SEM, EDX and XPS. Interestingly, the as-prepared Ag₂MoO₄ showed excellent photocatalytic and electrocatalytic activity for the degradation of ciprofloxacin (CIP) and electrochemical detection of hydrogen peroxide (H₂O₂), respectively. The ultraviolet-visible (UV-Vis) spectroscopy results revealed that the potato-like Ag₂MoO₄ microstructures could offer a high photocatalytic activity towards the degradation of CIP under UV-light illumination, leads to rapid degradation within 40?min with a degradation rate of above 98%. In addition, the cyclic voltammetry (CV) and amperometry studies were realized that the electrochemical performance of Ag₂MoO₄ modified electrode toward H₂O₂ detection. Our H₂O₂ sensor shows a wide linear range and lower detection limit of 0.04-240??M and 0.03??M, respectively. The Ag₂MoO₄ modified electrode exhibits a high selectivity towards the detection of H₂O₂ in the presence of different biological interferences. These results suggested that the development of potato-like Ag₂MoO₄ microstructure could be an efficient photocatalyst as well as electrocatalyst in the potential application of environmental, biomedical and pharmaceutical samples.

SUBMITTER: Kumar JV 

PROVIDER: S-EPMC5037444 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature