Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Microwave assisted synthesis of CuS-reduced graphene oxide nanocomposite with efficient photocatalytic activity towards azo dye degradation. / Borthakur, Priyakshree; Boruah, Purna K.; Darabdhara, Gitashree и др.
в: Journal of Environmental Chemical Engineering, Том 4, № 4, 01.12.2016, стр. 4600-4611.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Microwave assisted synthesis of CuS-reduced graphene oxide nanocomposite with efficient photocatalytic activity towards azo dye degradation
AU - Borthakur, Priyakshree
AU - Boruah, Purna K.
AU - Darabdhara, Gitashree
AU - Sengupta, Pinaki
AU - Das, Manash R.
AU - Boronin, Andrei I.
AU - Kibis, Lidiya S.
AU - Kozlova, Mariia N.
AU - Fedorov, Vladimir E.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - Graphical abstract: CuS-reduced graphene oxide nanocomposite has excellent photocatalytic degradation efficiency towards Congo Red degradation under sunlight irradiation due to synergistic effect between CuS and reduced graphene oxide sheets. Semiconductor based CuS-rGO nanocomposite materials have drawn a considerable attention towards photodegradation of organic dye molecules due to the low band gap (∼2.5eV) of CuS nanoparticles. Presence of reduced graphene oxide (rGO) in CuS-rGO nanocomposite induced synergistic effect between CuS and rGO sheets which led towards better photocatalytic degradation efficiency as compared to CuS nanoparticles (without rGO support) and rGO alone. In this study CuS-rGO nanocomposite was synthesized by a simple microwave irradiation technique and characterized by High resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Thermogravimetric analysis (TGA) and Photoluminescence (PL) spectroscopy studies. The synthesized nanocomposite behaved as efficient photocatalyst towards diazo Congo Red (CR) dye molecule under natural sunlight irradiation with a maximum degradation efficiency of 98.76%. Effect of initial dye concentration, catalyst loading, pH of the reaction medium and role of different inorganic ions as well as the amount of graphene content in the photocatalyst on photocatalytic degradation of CR dye molecule was investigated in this study. The present study also focussed on the effect of different inorganic ions on the surface potential of the photocatalyst and their effect on the degradation process.
AB - Graphical abstract: CuS-reduced graphene oxide nanocomposite has excellent photocatalytic degradation efficiency towards Congo Red degradation under sunlight irradiation due to synergistic effect between CuS and reduced graphene oxide sheets. Semiconductor based CuS-rGO nanocomposite materials have drawn a considerable attention towards photodegradation of organic dye molecules due to the low band gap (∼2.5eV) of CuS nanoparticles. Presence of reduced graphene oxide (rGO) in CuS-rGO nanocomposite induced synergistic effect between CuS and rGO sheets which led towards better photocatalytic degradation efficiency as compared to CuS nanoparticles (without rGO support) and rGO alone. In this study CuS-rGO nanocomposite was synthesized by a simple microwave irradiation technique and characterized by High resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Thermogravimetric analysis (TGA) and Photoluminescence (PL) spectroscopy studies. The synthesized nanocomposite behaved as efficient photocatalyst towards diazo Congo Red (CR) dye molecule under natural sunlight irradiation with a maximum degradation efficiency of 98.76%. Effect of initial dye concentration, catalyst loading, pH of the reaction medium and role of different inorganic ions as well as the amount of graphene content in the photocatalyst on photocatalytic degradation of CR dye molecule was investigated in this study. The present study also focussed on the effect of different inorganic ions on the surface potential of the photocatalyst and their effect on the degradation process.
KW - Congo red (CR)
KW - CuS nanoparticles
KW - CuS-rGO nanocomposite
KW - Photocatalytic degradation
KW - Reduced graphene oxide
UR - http://www.scopus.com/inward/record.url?scp=85005993388&partnerID=8YFLogxK
U2 - 10.1016/j.jece.2016.10.023
DO - 10.1016/j.jece.2016.10.023
M3 - Article
AN - SCOPUS:85005993388
VL - 4
SP - 4600
EP - 4611
JO - Journal of Environmental Chemical Engineering
JF - Journal of Environmental Chemical Engineering
SN - 2213-3437
IS - 4
ER -
ID: 25415960