Preparation of ZnO nanocatalyst supported on todorokite and photocatalytic efficiency in the reduction of chromium (VI) pollutant from aqueous solution

Iranian Journal of Catalysis

مقاله 3، دوره 9، شماره 3، آذر 2019، صفحه 201-211   

نوع مقاله: Articles

نویسندگان

Maryam Sabonian؛ Kazem Mahanpoor^*

Department of Chemistry, Arak Branch, Islamic Azad University, Arak, Iran.

چکیده

In this research, a new effective photocatalyst was prepared by supporting ZnO on a Todorokite (TD). This catalyst was characterized by employing scanning electron microscopy (SEM-EDX) and X-Ray Diffraction (XRD) patterns. The optical properties of the samples were measured by diffuse reflectance spectroscopy (DRS). The purpose of using the ZnO/TD as a photocatalyst was to reduction Cr(VI), which is a pollutant in water. Experiments were carried out under different operating conditions including an initial concentration of Cr(VI), photocatalyst amounts and pH values. To optimize processes and obtain a mathematical model, the researcher used a full factorial design (with three factors at three levels). The optimal conditions were determined where the amount of photocatalyst= 200 mg L-1, pH= 2 and concentration of Cr(VI)= 15 ppm. The reduction efficiency in an optimal condition was 97.73%. The experimental results showed that kinetic was the first order and k= 0.1489 min–1.

کلیدواژه‌ها

Todorokite؛ Photocatalytic reduction؛ Cr(VI)؛ ZnO Nanoparticles؛ Full factorial experimental design

سایر فایل های مرتبط با مقاله

SI.pdf

مراجع

[1] N. Ilankoon, Int. J. Eng. Res. Appl. 4 (2014) 55-63.
[2] Q. Wang, J. Shang, T. Zhu, F. Zhao, J. Mol. Catal. A: Chem. 335 (2011) 242-247.
[3] S. Gupta, B.V. Babu, Bioresour. Technol. 100 (2009) 5633-5640.
[4] M. Kebir, M. Chabani, N. Nasrallah, M. Trari, Desalination 270 (2011) 166-173.
[5] G. Colón, M.C. Hidalgo, J.A. Navı́o, J. Photochem. Photobiol. A 138 (2001) 79-85.
[6] A. Nezamzadeh-Ejhieh, Z. Banan, Desalination 279 (2011) 146-151.
[7] H.R. Pouretedal, M. Fallahgar, F. Sotoudeh Pourhasan, M. Nasiri, Iran. J. Catal. 7 (2017) 317-326.
[8] L. Vafayi, S. Gharibe, Iran. J. Catal. 5 (2015) 365-371.
[9] A. Nezamzadeh-Ejhieh, G. Raja, J. Chem. 2013 (2013) 1-13.
[10] S. Wang, Z. Wang, Q. Zhuang, Appl. Catal. B 1 (1992) 257-270.
[11] Ü. Özgür, Ya.I. Alivov, C. Liu, A. Teke, M.A. Reshchikov, S. Doğan, V. Avrutin, S.-J. Cho, H. Morkoç, J. Appl. Phys. 98 (2005) 041301.
[12] B. Khodadadi, M. Bordbar, Iran. J. Catal. 6 (2016) 37-42.
[13] M. Giahi, A. Hoseinpour Dargahi, Iran. J. Catal. 6 (2016) 381-387.
[14] N. Manavizadeh, A.R. Khodayari, A. Asl Soleimani, S. Bagherzadeh, Iran. J. Chem. Chem. Eng. 31 (2012) 37-42.
[15] G. Al-Dahash, W. Mubdir Khilkala, S.N. Abdul Vahid, Iran. J. Chem. Chem. Eng. 37 (2018) 11-16.
[16] F.A. Al-Sagheer, M.I. Zaki, Microprous Mesporous Mater. 67 (2004) 43-52.
[17] R. Nabizadeh, M. Jahangiri Rad, Res. J. Nanosci. Nanotechnol. 6 (2016) 1-7.
[18] V.A. Sakkas, M.A. Islam, C. Stalikas, T.A. Albanis, J. Hazard. Mater. 175 (2010) 33-44.
[19] J. Fernández, J. Kiwi, C. Lizama, J. Freer, J. Baeza, H.D. Mansilla, J. Photochem. Photobiol. A. Chem. 151 (2002) 213-219.
[20] M.C. Yeber, C. Soto, R. Riveros, J. Navarrete, G. Vidal, Chem. Eng. J. 152 (2009) 14-19.
[21] M. Sabonian, M.A. Behnajady, Desalin. Water Treat. 56 (2014) 1-11.
[22] S.V. Balakhonov, B.R. Churagulov, E.A. Gudilin, J. Surf. Invest. 2 (2008) 152-155.
[23] A. Chen, S. Xia, X. Pan, H. Lu, Z. Ji, J. Alloys. Compd. 735 (2018) 1314-1318.
[24] Z. Ren, X. Liu, H. Chu, H. Yu, Y. Xu, W. Zheng, W. Lei, P. Chen, J. Li, C. Li, J. Colloid Interface Sci. 488 (2017) 190–195.
[25] F. Jing, R. Liang, J. Xiong, R. Chen, S. Zhang, Y. Li, L. Wu, Appl. Catal. B 206 (2017) 9–15.
[26] G. Corro, N. Sánchez, U. Pal, S. Cebada, J.L. García Fierro, Appl. Catal. B 203 (2017) 43–52.
[27] Y. Z, C. Luo, L. Liu, Z. Yang, S. Ren, Y. Cai, J. Xiong, Mater. Lett. 181 (2016) 169–172.
[28] M. Hamadanian, A. Sadeghi Sarabi, A. Mohammadi Mehra, V. Jabbari, Mater. Sci. Semicond. Process. 21 (2014) 161–166.
[29] X. Han Feng, M. Zhu, M. Ginder-Vogel, C. Ni, S.J. Parikh, D.L. Sparks, Geochim. Cosmochim. Acta. 74 (2010) 3232–3245.
[30] M. Bordbar, S. Forghani-pilerood, A. Yeganeh-Faal, Iran. J. Catal. 6 (2016) 415-421.
[31] S. Aghdasi, M. Shokri, Iran. J. Catal. 6 (2016) 481-487.
[32] Z. Jin, Y.X. Zhang, F.L. Meng, Y. Jia, T. Luo, X.Y. Yu, J. Wang, J.H. Liu, X.J. Huang, J. Hazard. Mater. 276 (2014) 400-407.
[33] K. Kabra, R. Chaudhary, R.L. Sawhney, Ind. Eng. Chem. Res. 43 (2004) 7683-7696.
[34] S. Chakrabarti, B. Chaudhuri, S. Bhattacharjee, A.K. Ray, B.K. Dutta, Chem. Eng. J. 153 (2009) 86-93.
[35] A. Nezamzadeh-Ejhieh, Z. Ghanbari-Mobarakeh, J. Ind. Eng. Chem. 21 (2015) 668-676.