Abstract
Cadmium sulfide (CdS)–manganese oxide (MO) nanocomposite was synthesized by the ion exchange and ultrasonic irradiation methods. The synthesized nanocomposite was characterized by FTIR, powder X-ray diffractrogram (XRD), UV–Vis diffused reflectance spectra (UVDRS), photoluminescence (PL), transmission electron microscope (TEM) and energy dispersive X-ray analysis (EDX). The experimental results confirm the formation of CdS–MO nanocomposite. The luminescence of the nanocomposite exhibits a notable blue shift. The TEM results disclosed the size of the nanocomposite to be within 10–20 nm. The catalytic activity of the nanocomposite was evaluated by the degradation of methylene blue (MB) under visible light.
Highlights
Cadmium sulfide (CdS) semiconductor nanoparticles have attracted intense interest due to their unique photochemical and photophysical properties
Two major structures are important, (1) octahedral layer constructed by edge sharing MnO6 to form sheets with cations (Na?, K?) and in which water is present in between any two adjacent sheets, and (2) octahedral molecular sieve (OMS) materials constructed by the edge and corner shared octahedral MnO6 (Ma et al 2006; Suib 2008) that find potential applications in the field of cation-exchange, ion and molecule separation, adsorbents, sensor, battery, catalysis (Ma et al 2006; Suib 2008; Feng et al 1999; Feng 2010), etc., Manganese oxide materials have been used for a wide range of catalytic applications in both synthetic chemistry and environmental problems, such as degradation of dyes, organic pollutants, waste water treatment, nitric oxide
The CdS–Manganese oxides (MO) nanocomposite exhibits a peak at (2h=) 11.9 [7.2 A ], which indicates that a stable composite was formed and the slight shift of peak position is due to the transformation of a layered structure into the closed structure of the manganese oxide
Summary
Cadmium sulfide (CdS) semiconductor nanoparticles have attracted intense interest due to their unique photochemical and photophysical properties. Abstract Cadmium sulfide (CdS)–manganese oxide (MO) nanocomposite was synthesized by the ion exchange and ultrasonic irradiation methods. The catalytic activity of the nanocomposite was evaluated by the degradation of methylene blue (MB) under visible light.
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