One-pot synthesis of CdS sensitized TiO2 decorated reduced graphene oxide nanosheets for the hydrolysis of ammonia-borane and the effective removal of organic pollutant from water |
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| Affiliation: | 1. Department of Chemistry, Inha University, 100 Inharo, Incheon 402-751, Republic of Korea;2. Department of Organic Materials and Fiber Engineering, Chonbuk National University, Republic of Korea;3. Department of BIN Convergence Technology, Chonbuk National University, Republic of Korea;1. Bionanosystem Engineering Department, Chonbuk National University, Jeonju, 561-756, Republic of Korea;2. Department of Sustainable and Renewable Energy Engineering, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates;3. Chemical Engineering Department, Faculty of Engineering, Minia University, Minia, Egypt;4. Advanced Materials Institute for BIN Convergence, Department of BIN Convergence Technology, Chonbuk National University, Jeonju, 561-756, Republic of Korea;5. Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea;6. Department of Chemistry, Inha University, 100 Inharo, Incheon, 402-751, Republic of Korea;1. Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea;2. Department of Organic materials and Fiber Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea;3. Department of Chemical Engineering, NED University of Engineering & Technology, University Road, Karachi 75270, Pakistan;4. Department of Chemical Engineering, Faculty of Engineering, El-Minia University, El-Minia, Egypt;5. New & Renewable Energy Material Development Center (NewREC), Chonbuk National University, Jeonbuk, Republic of Korea |
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| Abstract: | A hybrid material of reduced graphene oxide (RGO) sheets decorated with CdS-TiO2 NPs was prepared through a facile one-pot hydrothermal method. The assembly of CdS-TiO2 nanoparticles (NPs) on RGO sheets was in-situ produced. As-synthesized nanocomposites were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy disperse X-ray spectrum (EDS), fourier transform infrared spectroscopy (FTIR), and photoluminescence spectroscopy (PL). The obtained nanocomposites exhibited a good photocatalytic activity for the visible-light-induced decomposition of methylene blue (MB) dye and hydrolysis of ammonia borane. The results showed that by incorporation of CdS and TiO2 NPs on graphene oxide sheets the photocatalytic efficiency was enhanced. The significant enhancement in the photocatalytic activity of CdS-TiO2/RGO nanocomposites under visible light irradiation can be ascribed to the effect of CdS by acting as electron traps in TiO2 band gap. Reduced graphene oxide worked as the adsorbent, electron acceptor and a photo-sensitizer to efficiently enhance the dye photo decomposition. Such nanocomposite photocatalyst might find potential application in a wide range of fields, including hydrogen energy generation, air purification, and wastewater treatment. |
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| Keywords: | Hydrothermal Graphene oxide Photocatalyst Nanocomposite Hydrogen gas |
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