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simple, easily handled and the reactions were performed in
water. Furthermore, the procedure can be performed effec-
tively using a visible light source or alternatively even in rel-
atively moderate sunlight. Recyclability test of the reaction
mixture showed that CdS photocatalyst maintain their
excellent catalytic activity even after six reused cycle. The
excellent photocatalytic activity of CdS is attributed to its
well placed conduction band and valance band positions,
efficient visible light absorption and highly effective separa-
tion of photogenerated charge carriers. The results of the
present work are of greatly significant in practice and useful
in the exploitation of clean and safe solar energy.
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ACKNOWLEDGMENTS
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SR thanks IIEST, Shibpur for Institute Research
Fellowship and PKS acknowledges UGC‐India for JRF
(ID‐131818). We acknowledge SAIF‐NEHU for providing
NMR facility.
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