caa a22 4500 606194592 CHVBK 20210128100915.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10934-014-9871-y doi (NATIONALLICENCE)springer-10.1007/s10934-014-9871-y Cobalt-doped ZnS-reduced graphene oxide nanocomposite as an advanced photocatalytic material [Elektronische Daten] [Eric Agorku, Messai Mamo, Bhekie Mamba, Avinash Pandey, Ajay Mishra] The removal of toxic organic pollutants from wastewater by graphene-based photocatalysts has dominated recent scientific research. As a result numerous nanomaterials have been studied and used for water remediation. ZnS has been widely studied due to its versatile application in photocatalysis. This study presents the synthesis of Co-doped graphene-ZnS nanocomposite by co-precipitation method. The materials were characterized by X-ray diffraction , Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller surface area analysis. UV/Vis diffuse reflectance spectroscopy was employed to estimate band gap energies. Laboratory experiments with indigo carmine (IC) dye was chosen as a model for organic pollutants and was used to evaluate the photocatalytic performance of Co-doped ZnS-rGO nanocomposite under visible light. The Co-doped ZnS-rGO showed significant visible light induced photocatalytic activity towards the degradation of IC. Highest photocatalytic activity was observed for the 0.3% Co-doped ZnS-rGO sample (k=3.1×10−2min−1). Springer Science+Business Media New York, 2014 Graphene nationallicence Cobalt nationallicence ZnS nationallicence Indigo carmine nationallicence Photocatalysis nationallicence Agorku Eric Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028, Johannesburg, South Africa aut Mamo Messai Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028, Johannesburg, South Africa aut Mamba Bhekie Nanotechnology for Water Sustainability Research Unit, College of Engineering, Science and Technology, University of South Africa, Florida Campus, Roodepoort, Johannesburg, South Africa aut Pandey Avinash Nanotechnology Application Centre, University of Allahabad, 211002, Allahabad, India aut Mishra Ajay Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028, Johannesburg, South Africa aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 47-56 1380-2224 22:1<47 2015 22 10934 https://doi.org/10.1007/s10934-014-9871-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-014-9871-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Agorku Eric Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028, Johannesburg, South Africa aut NATIONALLICENCE 700 1- Mamo Messai Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028, Johannesburg, South Africa aut NATIONALLICENCE 700 1- Mamba Bhekie Nanotechnology for Water Sustainability Research Unit, College of Engineering, Science and Technology, University of South Africa, Florida Campus, Roodepoort, Johannesburg, South Africa aut NATIONALLICENCE 700 1- Pandey Avinash Nanotechnology Application Centre, University of Allahabad, 211002, Allahabad, India aut NATIONALLICENCE 700 1- Mishra Ajay Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, PO Box 17011, 2028, Johannesburg, South Africa aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 47-56 1380-2224 22:1<47 2015 22 10934