Near-Infrared (NIR) Silver Sulfide (AgS) Semiconductor Photocatalyst Film for Degradation of Methylene Blue Solution.

A silver sulfide (AgS) semiconductor photocatalyst film has been successfully synthesized using a solution casting method. To produce the photocatalyst films, two types of AgS powder were used: a commercialized and synthesized powder. For the commercialized powder (CF/comAgS), the AgS underwent a rarefaction process to reduce its crystallite size from 52 nm to 10 nm, followed by incorporation into microcrystalline cellulose using a solution casting method under the presence of an alkaline/urea solution.