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10.4314/ejst.v12i2.2Keywords:
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References
Akbal, F. (2005). Photocatalytic degradation of organic dyes in the presence of tita-nium dioxide under UV and solar light: Effect of operational parameters. Envi-ronmental Progress 24(3): 317-322. doi: 10.1002/ep.10092.
Babu, S.G., Vinoth, R., Narayana, P.S., Bahnemann, D and Neppolian, B. (2015). Reduced graphene oxide wrapped Cu2O supported on C3N4: An efficient visible light responsive semiconductor photocatalyst. APL Materials 3(10):104415. doi: 10.1063/1.4928286
Barka, N., Qourzal, S., Assabbane, A., Nounah, A and Ait-Ichou, Y. (2010). Photo-catalytic degradation of an azo reactive dye, Reactive Yellow 84, in water using an industrial titanium dioxide coated media. Arabian Journal of Chemistry 3(4): 279-283. doi: https://doi.org/10.1016/j.arabjc.2010.06.016
Carcel, R.A., Andronic, L and Duta, A. (2011). Photocatalytic degradation of methylorange using TiO2, WO3 and mixed thin films under controlled pH and H2O2. Journal of Nanoscience and Nanotechnology 11(10): 9095-9101. doi: 10.1166/jnn.2011.4283
Choi, E.-Y., Han, T.H., Hong, J., Kim, J.E., Lee, S.H., Kim, H.W and Kim, S.O. (2010). Noncovalent functionalization of graphene with end-functional polymers. Journal of Materials Chemistry 20(10): 1907-1912. doi: 10.1039/B919074K
da Silva, C.G and Faria, J.L.S. (2003). Photochemical and photocatalytic degradation of an azo dye in aqueous solution by UV irradiation. Journal of Photochemistry and Photobiology A: Chemistry 155(1): 133-143. doi: https://doi.org/10.1016/S1010-6030(02)00374-X
Dubale, A.A., Su, W.N., Tamirat, A.G., Pan, C.J., Aragaw, B.A., Chen, H.M., Chen, C.H and Hwang, B.J. (2014). The synergetic effect of graphene on Cu2O nanowire arrays as a highly efficient hydrogen evolution photo-cathode in water splitting. Journal of Materials Chemistry A 2(43): 18383-18397. doi: 10.1039/c4ta03464c
Hsu, H.-C., Shown, I., Wei, H.-Y., Chang, Y.-C., Du, H.-Y., Lin, Y.-G., Tseng, C.-A., Wang, C.-H., Chen, L.-C., Lin, Y.-C and Chen, K.-H. (2013). Graphene oxide as a promising photocatalyst for CO2 to methanol conversion. Nanoscale 5(1): 262-268. doi: 10.1039/C2NR31718D
Hummers, W.S and Offeman, R.E. (1958). Preparation of graphitic oxide. Journal of the American Chemical Society 80(6): 1339-1339. doi: 10.1021/ja01539a017
Jia, Z., Chen, T., Wang, J., Ni, J., Li, H and Shao, X. (2015). Synthesis, characteri-zation and tribological properties of Cu/reduced graphene oxide composites. Tri-bology International 88: 17-24. doi: https://doi.org/10.1016/j.triboint.2015.02.028
Jiang, X., Nisar, J., Pathak, B., Zhao, J and Ahuja, R. (2013). Graphene oxide as a chemically tunable 2-D material for visible-light photocatalyst applications. Jour-nal of Catalysis 299: 204-209. doi: https://doi.org/10.1016/j.jcat.2012.12.022
Kumar, P., Bansiwal, A., Labhsetwar, N and Jain, S.L. (2015). Visible light assisted photocatalytic reduction of CO2 using a graphene oxide supported heteroleptic ru-thenium complex. Green Chemistry 17(3): 1605-1609. doi: 10.1039/C4GC01400F
Kumar, P.V., Bardhan, N.M., Tongay, S., Wu, J., Belcher, A.M and Grossman, J.C. (2013). Scalable enhancement of graphene oxide properties by thermally driven phase transformation. Nature Chemistry 6: 151. doi: 10.1038/nchem.1820
Liu, H., Wang, T and Zeng, H. (2015). CuNPs for efficient photocatalytic hydrogen evolution. Particle & Particle Systems Characterization 32(9):869-873. doi: 10.1002/ppsc.201500059
Liu, Y., Zeng, X., Hu, X., Hu, J and Zhang, X. (2019). Two-dimensional nano-materials for photocatalytic water disinfection: recent progress and future challeng-es. Journal of Chemical Technology & Biotechnology 94(1):22-37. doi: 10.1002/jctb.5779
Mahmoodi, N.M., Keshavarzi, S and Ghezelbash, M. (2017). Synthesis of nanopar-ticle and modelling of its photocatalytic dye degradation ability from colored wastewater. Journal of Environmental Chemical Engineering 5(4): 3684-3689. doi: https://doi.org/10.1016/j.jece.2017.07.010
Nezamzadeh-Ejhieh, A and Hushmandrad, S. (2010). Solar photodecolorization of methylene blue by CuO/X zeolite as a heterogeneous catalyst. Applied Catalysis A: General 388(1): 149-159. doi: https://doi.org/10.1016/j.apcata.2010.08.042
Nezamzadeh-Ejhieh, A and Karimi-Shamsabadi, M. (2013). Decolorization of a binary azo dyes mixture using CuO incorporated nanozeolite-X as a heterogene-ous catalyst and solar irradiation. Chemical Engineering Journal 228: 631-641. doi: https://doi.org/10.1016/j.cej.2013.05.035
Nezamzadeh-Ejhieh, A and Karimi-Shamsabadi, M. (2014). Comparison of photo-catalytic efficiency of supported CuO onto micro and nano particles of zeolite X in photodecolorization of Methylene blue and Methyl orange aqueous mixture. Applied Catalysis A: General 477: 83-92. doi: https://doi.org/10.1016/j.apcata.2014.02.031
Rabchinskii, M.K., Dideikin, A.T., Kirilenko, D.A., Baidakova, M.V., Shnitov, V.V., Roth, F., Konyakhin, S.V., Besedina, N.A., Pavlov, S.I., Kuricyn, R.A., Lebedeva, N.M., Brunkov, P.N and Vul’, A.Y. (2018). Facile reduction of gra-phene oxide suspensions and films using glass wafers. Scientific Reports 8(1): 14154. doi: 10.1038/s41598-018-32488-x
Rajamanickam, D and Shanthi, M. (2016). Photocatalytic degradation of an organic pollutant by zinc oxide – solar process. Arabian Journal of Chemistry 9: S1858-S1868. doi: https://doi.org/10.1016/j.arabjc.2012.05.006
Sun, H., Liu, S., Zhou, G., Ang, H.M., Tadé, M.O and Wang, S. (2012). Reduced graphene oxide for catalytic oxidation of aqueous organic pollutants. ACS Ap-plied Materials & Interfaces 4(10): 5466-5471. doi: 10.1021/am301372d
Sun, L., Du, T., Hu, C., Chen, J., Lu, J., Lu, Z and Han, H. (2017). Antibacterial activity of graphene oxide/g-C3N4 composite through photocatalytic disinfection under visible light. ACS Sustainable Chemistry & Engineering 5(10): 8693-8701. doi: 10.1021/acssuschemeng.7b01431
Tamirat, A.G., Su, W.-N., Dubale, A.A., Pan, C.-J., Chen, H.-M., Ayele, D.W., Lee, J.-F and Hwang, B.-J. (2015). Efficient photoelectrochemical water splitting using three dimensional urchin-like hematite nanostructure modified with reduced graphene oxide. Journal of Power Sources 287: 119-128. doi: https://doi.org/10.1016/j.jpowsour.2015.04.042
Tanaka, K., Padermpole, K and Hisanaga, T. (2000). Photocatalytic degradation of commercial azo dyes. Water Research 34(1): 327-333. doi: https://doi.org/10.1016/S0043-1354(99)00093-7
Wang, J.L and Xu, L.J. (2012). Advanced oxidation processes for wastewater treat-ment: Formation of hydroxyl radical and application. Critical Reviews in Environ-mental Science and Technology 42(3): 251-325. doi: 10.1080/10643389.2010.507698
Wei, Y., Zhu, Y and Jiang, Y. (2019). Photocatalytic self-cleaning carbon nitride nanotube intercalated reduced graphene oxide membranes for enhanced water puri-fication. Chemical Engineering Journal 356: 915-925. doi: https://doi.org/10.1016/j.cej.2018.09.108
Xiang, Q., Yu, J and Jaroniec, M. (2011). Preparation and enhanced visible-light photocatalytic H2-production activity of graphene/C3N4 composites. The Journal of Physical Chemistry C 115(15): 7355-7363. doi: 10.1021/jp200953k
Xiong, Z., Zhang, L.L and Zhao, X.S. (2011). Visible-light-induced dye degradation over copper-modified reduced graphene oxide. Chemistry – A European Journal 17(8): 2428-2434. doi: 10.1002/chem.201002906
Yan, J.-A., Xian, L and Chou, M.Y. (2009). Structural and electronic properties of oxidized graphene. Physical Review Letters 103(8): 086802. doi: 10.1103/PhysRevLett.103.086802
Yeh, T.-F., Chan, F.-F., Hsieh, C.-T and Teng, H. (2011). Graphite oxide with different oxygenated levels for hydrogen and oxygen production from water under illumination: The band positions of graphite oxide. The Journal of Physical Chem-istry C 115(45): 22587-22597. doi: 10.1021/jp204856c
Yeh, T.-F., Syu, J.-M., Cheng, C., Chang, T.-H and Teng, H. (2010). Graphite oxide as a photocatalyst for hydrogen production from water. Advanced Function-al Materials 20(14): 2255-2262. doi: 10.1002/adfm.201000274
Zang, Z., Hossain, M.F and Takahashi, T. (2010). Self-assembled hematite (α-Fe2O3) nanotube arrays for photoelectrocatalytic degradation of azo dye under simulated solar light irradiation. Applied Catalysis B: Environmental 95(3): 423-429. doi: https://doi.org/10.1016/j.apcatb.2010.01.022
Zhang, L.L., Xiong, Z and Zhao, X.S. (2010). Pillaring chemically exfoliated gra-phene oxide with carbon nanotubes for photocatalytic degradation of dyes under visible light irradiation. ACS Nano 4(11): 7030-7036. doi: 10.1021/nn102308r
Zhang, P., Song, T., Wang, T and Zeng, H. (2018). Plasmonic Cu nanoparticle on reduced graphene oxide nanosheet support: An efficient photocatalyst for im-provement of near-infrared photocatalytic H2 evolution. Applied Catalysis B: Envi-ronmental 225: 172-179. doi: https://doi.org/10.1016/j.apcatb.2017.11.076
Zhang, Y., Mori, T., Niu, L and Ye, J. (2011). Non-covalent doping of graphitic carbon nitride polymer with graphene: controlled electronic structure and enhanced optoelectronic conversion. Energy & Environmental Science 4(11): 4517-4521. doi: 10.1039/C1EE01400E
Main Article Content
Copper/reduced graphene oxide nanocomposite for high performance photocatalytic methylene blue dye degradation
Abstract
Copper nanoparticles deposited on reduced graphene oxide (RGO) have been investigated for various applications. In many of these reports RGO is used as a support and electron collector and not as a light absorber. However, Cu nanoparticle decorated over the surface of semiconducting RGO as a light absorber has not been investigated for its photocatalytic organic dye degradation activity. Here, we deposited Cu nanoparticle on RGO sheet by insitu photoreduction method. The Cu/RGO nanocomposite photocatalyst material is characterized by UV-Visible spectroscopy, FT-IR and X-ray powder diffraction and its photodegradation activity towards model organic dye was investigated. Based on our results, it was found that the photocatalytic degradation efficiency of GO, RGO and Cu/RGO nanocomposites were 63%, 68% and 94%, respectively under light irradiation at pH~7 in 50 min. The high photocatalytic performance of Cu/RGO nanocomposite is due to the catalytic effect of Cu. The Cu nanoparticle is a good photoelectron acceptor that traps the photoelectron and reduces the recombination rate of photoelectron-hole pairs. We believe that our finding would be widely applicable to the graphene oxide based composites with metal or metal oxide nanoparticles to develop a cost effective technique for environmental protection.
