Journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
Volume 225, Issue -, Pages 33-44Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2017.08.008
Keywords
CdS nanoparticles; Calotropis gigantea leaf extract; Photocatalysis; Sensing; Antimicrobial activity
Funding
- UGC, New Delhi
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Here, we report for the synthesis of C. gigantea leaf extract capped CdS NPs by a simple sonochemical method via a green approach. The obtained materials were thoroughly characterized by various physicochemical techniques such as UV-vis DRS, PL, XRD, ATR-FTIR, SEM, TEM, Raman, zeta potential and DLS. The TEM image shows the average particle size of CdS NPs as 20 nm. The photocatalytic performance of CdS NPs on the degradation of MB and EY under sunlight irradiation is investigated. The synthesized CdS NPs attain an efficient degradation efficiency of MB and EY dyes under 60 min of sunlight irradiation. To investigate the selectivity of metal ions, Pb2+, Sn2+ and Hg2+ were studied for their sensing property in a nanomolar concentration by spectrofluorometrically. The antimicrobial property of CdS NPs was also investigated. Our work suggests that prepared CdS NPs could be a potential photocatalyst, a sensor, and an active antimicrobial agent.
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