The objective of the research is mainly the development of efficient and environmentally benign heterogeneous catalysts for sunlight assisted photodecolorization of Malachite green (MG). Heterogeneous MIL-101/graphene oxide composite was synthesized by sonication and heat treatment for this purpose. The catalyst thus prepared was then tested for the sunlight assisted photodecolorization. The mesostructure of MIL-101 remains intact after graphene oxide modifications, as shown by various techniques such as FT IR, X-ray diffraction, UV-Vis, N2 adsorption desorption, SEM and TEM. XRD and adsorption desorption analysis, while spectral techniques show successful immobilization of the neat graphene oxide inside the MIL-101 cavities. The effects of key experimental parameters including the catalyst amount (0.009–0.017 g L−1), initial concentration of dyes (10–30 mg L−1) and solution pH (3–11) were studied on the extent of decolorization.
Russian Journal of Applied Chemistry – Springer Journals
Published: Apr 16, 2015
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