Influence of weight ratio to the photocatalytic actvity of g-C3N4/ZnS composite
Abstract
The g-C3N4/ZnS composites materials were synthesized by amounts of g‐C3N4 and ZnS and dispersed in water under stirring for 48 hour. The final product was gathered using a centrifuge, washed with absolute ethanol and ultra‐pure water several times, and then dried in a vacuum oven at 70 °C. The as-prepared samples were denoted as g-C3N4/ZnS-w, where w is weight ratio of ZnS:g-C3N4 and equals 1, 1.5 and 2. The obtained materials were characterized by X-Ray Diffraction (XRD), Energy-dispersive X-ray (EDX) and Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV-Vis-DRS). The photocatalytic activity of g-C3N4/ZnS-w samples was assessed by degradation of methylene blue in aqueous solution under visible light. Among them, g-C3N4/ZnS-1.5 exhibited the best performance. The mechanism of decomposition of methylene blue was studied by using quenchers, which demonstrated that hydroxyl radicals (•OH) are the main factors of the photocatalytic process. Effect of initial pH was also investigated.
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S. Harish, M. Sabarinathan, A. Periyanayaga Kristy, J. Archana, M. Navaneethan, H. Ikeda and Y. Hayakaw, ZnS quantum dots impregnated-mesoporous TiO2 nanospheres for enhanced visible light induced photocatalytic application, RSC Adv., 7, (2017), 26446-26457.
Houcine Labiadh, Karima Lahbib, Slah Hidouri, Soufiane Touil, Tahar Ben Chaabane, Insight of ZnS nanoparticles contribution in different biological uses, Asian Pacific Journal of Tropical Medicine, 9(8), (2016), 757-762.
Kalyanaraman Kalpana and Vaithilingam Selvaraj, Photodegradation and antibacterial studies of ZnS enwrapped fly ash nanocomposite for multipurpose industrial applications, RSC Advances, 5, (2015), 47766-47777.
Suyana Panneri, Sneha K. R., Balagopal N. Nair, Venugopal Karunakaran, A.Peer Mohamed, K. G. K. Warrier and U. S. Hareesh, A Facile One Pot Synthetic Approach for C3N4- ZnS Composite Interfaces as Heterojunctions for Sun Light Induced Multifunctional Photocatalytic Applications, RSC Advances, 6, (2016), 17800–17809.
Nayereh Soltani, Elias Saion, Mohd Zobir Hussein, Maryam Erfani, Alam Abedini, Ghazaleh Bahmanrokh, Manizheh Navasery and Parisa Vaziri, Visible Light-Induced Degradation of Methylene Blue in the Presence of Photocatalytic ZnS and CdS Nanoparticles, Int. J. Mol. Sci., 13, (2012), 12242–12258.
Xin Zhou, Jing Zou, Sheng Zhang, Ming Pan, Wanyun Gong, Preparation and application of g‐C3N4‐ZnS‐DNA nanocomposite with enhanced electrocatalytic activity, Chinese Journal of Catalysis, 38, (2017), 287–295.
Gaiping Li, Junfeng Zhai, Dan Li, Xiaona Fang, Hong Jiang, Qingzhe Dong and Erkang Wang, One-pot synthesis of monodispersed ZnS nanospheres with high antibacterial Activity, J. Mater. Chem., 20, (2010), 9215–9219.
Han Zou, Xuehua Yan, Jie Ren, Xiao Wu, Yu Dai, Dawei Sha, Jianmei Pan, Jun Liu, Photocatalytic activity enhancement of modified g-C3N4 by ionothermal copolymerization, J. Materiomics, 1, (2015), 340–347.
K.Prabakar, S.Venkatachalam, Y.L.Jeyachandran, S.K.Narayandass, D.Mangalaraj, Microstructure, Raman and optical studies on CdO.6ZnO.4Te thin films, Materials Science and Engineering., 107, (2004), 99–105.
Lei Shi, Lin Liang, Jun Ma, Fangxiao Wang and Jianmin Sun, Enhanced photocatalytic activity over the Ag2O–g-C3N4 composite under visible light, Cat. Sci. Tech., 3, (2014), 758–765.
Lei Shi, Lin Liang, Fangxiao Wang, Mengshuai Liu, and Jianmin Sun, Enhanced Photocatalytic Activity of Degrading Rhodamine B Over MoS2/g-C3N4 Photocatalyst Under Visible Light, Energy and Enviroment Focus, 4, (2015), 74–81.
Lei Shi, Lin Liang, Jun Ma, Fangxiao Wang and Jianmin Sun, Remarkably enhanced photocatalytic activity of ordered mesoporous carbon/g-C3N4 composite photocatalysts under visible light, Dalton Trans, 43, (2014), 7236–7244.
M. Muruganandham, M. Swaminathan, TiO2–UV photocatalytic oxidation of Reactive Yellow 14: Effect of operational parameters, J. Hazardous Materials, 135(1-3), (2006), 78-86.
M. A. Behnajady, N. Modirshahla, R. Hamzavi, Kinetic study on photocatalytic degradation of C.I. Acid Yellow 23 by ZnO photocatalyst, J. Hazard.Mater, 133(1-3), (2006), 226-232.
P.Sivakumar, G.K.Gaurav Kumar, Synthesis and characterization of ZnS-Ag nanoballs and its application in photocatalytic dye degradation under visible light, Journal of Nanostructure in Chemistry, 4, (2014), 107.
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