The Effect of Different Dopants (Cr, Mn, ‎Fe, Co, Cu and Ni) on Photocatalytic ‎Properties of ZnO Nanostructures

Document Type : Research Paper

Authors

Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, ‎P.O. Box 167855-163, Tehran, Iran.‎

Abstract

   ZnO structures with different dopants (1mol% Cr, Mn, Fe, Co, Cu and Ni) have been synthesized via a simple hydrothermal method using sucrose as a template. These doped ZnO nanostructures characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL). The photocatalytic property of these synthesized materials was studied by a photocatalytic characterization system. The PL results confirmed that these dopants showed a significant effect on photoluminescence properties of ZnO structure. Among the synthesized photocatalysts, Ni doped ZnO showed a significant enhancement of photodecolorization capability (98.6 %) toward Congo red dye in UV irradiation. Also, it showed the highest dye adsorption (80%) at dark conditions. The improvement of decolorization of this photocatalyst might be attributed to enhancement the chance of the separation of electrons and holes, high capacity of dye adsorption and presence of defects in its structure. Preliminary experiment suggested Ni doped ZnO as effective photocatalyst for treating some pollution such as azo dyes.

Keywords


Paz, A., Carballo, J., Pérez, M. J., Domínguez, J. M., (2017) “Biological treatment of model dyes and textile wastewaters”, Chemosphere, 181: 168-177.
Hassanzadeh, E., Farhadian, M., Razmjou, A., Askari, N., (2017) “An efficient wastewater treatment approach for a real woolen textile industry using a chemical assisted NF membrane process”, Envir. Nanotech. Monitor. Manage. 8: 92-96.
Paździor, K., Wrębiak, J., Klepacz-Smółka, A., Gmurek, M., Bilińska, L., Kos, L., Sójka-Ledakowicz, J., Ledakowicz, S., (2017) “Influence of ozonation and biodegradation on toxicity of industrial textile wastewater, J. Envir. Manage, 195:166-173.
Reddy Inturi, S. N., Boningari, T., Suidan, M., Smirniotis, P. G., (2016) “Stabilization of Cr in Ti/Si/Cr Ternary Composites by Aerosol Flame Spray-Assisted Synthesis for Visible-Light-Driven Photocatalysis” Ind. Eng. Chem. Res., 55: 4611839-11849.
ReddyInturi, S. N., Suidan, M., Smirniotis, P. G., (2016) “Influence of synthesis method on leaching of the Cr-TiO2 catalyst for visible light liquid phase photocatalysis and their stability”, Appl Catal B: Environ, 180: 351-361.
Reddy Inturi, S. N., Boningari, T., Suidan, M., Smirniotis, P. G., (2014) “Visible-light-induced photodegradation of gas phase acetonitrile using aerosol-made transition metal (V, Cr, Fe, Co, Mn, Mo, Ni, Cu, Y, Ce, and Zr) doped TiO2Appl Catal B: Environ, 144: 333-342.
Reddy Inturi, S. N., Boningari, T., Suidan, M., Smirniotis, P. G., (2014) “Flame Aerosol Synthesized Cr Incorporated TiO2 for Visible Light Photodegradation of Gas Phase Acetonitrile” J Phys Chem C, 118 (1): 231-242.
Gnanasekaran, L., Hemamalini, R., Saravanan, R., Ravichandran, K., Gracia, F., Agarwal, S., Gupta, V. K., (2017) “Synthesis and characterization of metal oxides (CeO2, CuO, NiO, Mn3O4, SnO2 and ZnO) nanoparticles as photo catalysts for degradation of textile dyes” J. Photochem. Photobiol. B: Biol., 173: 43-49.
Mahdavi, R., Talesh, S.S.A., (2017) “The effect of ultrasonic irradiation on the structure, morphology and photocatalytic performance of ZnO nanoparticles by sol-gel method” Ultrason. Sonochem, 39: 504-510.
Wang, J., Xia, Y., Dong, Y., Chen, R., Xiang, L., Komarneni, S., (2016) “Defect-rich ZnO nanosheets of high surface area as an efficient visible-light photocatalyst” Appl. Catal. B: Environ, 192: 8-16.
Hisatomi, T., Kubota, J.,
Domen, K., (2014) “Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting” Chem. Soc. Rev. 43: 7520-7535.
Shahvelayati, A.S., Sabbaghan, M., Bashtani, S.E., (2015) “Imidazolium-based ionic liquids on morphology and optical properties of ZnO nanostructures” Int. J. Nanosci. Nanotechnol 11 (2): 123-131.
Türkyılmaz, Ş. Ş., Güy, N., Özacar, M., (2017) “Photocatalytic efficiencies of Ni, Mn, Fe and Ag doped ZnO nanostructures synthesized by hydrothermal method: The synergistic/antagonistic effect between ZnO and metals” J. Photochem. Photobiol. A: Chem., 341: 39-50.
Abdullah Mirzaie, R., Kamrani, F., Anaraki Firooz, A., Khodadadi, A. A., (2012) “Effect of α-Fe2O3 addition on the, optical and decolorization properties of ZnO nanostructures” Mater. Chem. Phys.133: 311-316.
Abdullah Mirzaie, R., Anaraki Firooz, A., Kamrani, F., Khodadadi, A.A., (2013) “Highly efficient MoO2.5(OH)0.5-doped ZnO nanoflower for photodecolorization of azo dye” Solid State Sci. 26: 9-15.
Banisharif, A., Hakim Elahi, S., Anaraki Firooz, A., Khodadadi, A.A., Mortazavi, Y., (2013) “TiO2/Fe3O4 Nanocomposite Photocatalysts for Enhanced Photo-Decolorization of Congo Red Dye” Int. J. Nanosci. Nanotechnol, 9: 193-202.
Sabbaghan, M., Anaraki Firooz, A., Jan Ahmadi, V., (2012) “The effect of template on morphology, optical and photocatalytic properties of ZnO nanostructures” J. Molec. Liq. 175:135-140.
Darvishnejad, M. H., Anaraki Firooz, A., Beheshtian, J., Khodadadi, A. A., (2016) “Highly sensitive and selective ethanol and acetone gas sensors by adding some dopants (Mn, Fe, Co, Ni) onto hexagonal ZnO plates” RSC Adv., 6: 7838–7845.
Jin, Y., Cui, Q., Wang, K., Hao, J., Wang, Q., Zhang, J., (2011) “Investigation of photoluminescence in undoped and Ag-doped ZnO flowerlike nanocrystals” J. Appl. Phys., 109: 053521.
Karunakaran, C., Jayabharathi, J., Jayamoorthy, K., Vinayagamoorthy, P., (2012) “Inhibition of fluorescence enhancement of benzimidazole derivative on doping ZnO with Cu and Ag” J. Photochem. Photobiol, A, 247: 16–23.
Mahmoud, M. S., (2016) “decolorization of certain reactive dye from aqueous solution using Baker,s Yeast (Saccharomyces cerevisiae) strain, HBRC j., 12: 88-98.