Abstract
A CdS/TiO 2 nano-bulk composite photocatalyst consisting of bulky CdS with a high crystallinity decorated with nanosized TiO 2 particles was fabricated by precipitation method and sol–gel synthesis. This configuration of the composite photocatalyst exhibited a very high rate of hydrogen production under visible light irradiation ( λ ≥ 420 nm) from water containing sulfide and sulfite as hole scavengers. In this work, we investigated the physicochemical properties of CdS(bulk)/TiO 2 composite photocatalysts and optimized their preparation conditions for the high photocatalytic activity of hydrogen production from water containing Na 2S and Na 2SO 3 as a sacrificial reagents under visible light irradiation.
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More From: Journal of Photochemistry and Photobiology A: Chemistry
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