اخبار و اعلانات

 آمار

تعداد نشریات418
تعداد شماره‌ها10,003
تعداد مقالات83,617
تعداد مشاهده مقاله78,261,047
تعداد دریافت فایل اصل مقاله55,315,629
Khodadadi, Bahar, Bordbar, Maryam. (1394). Sonochemical synthesis of undoped and Co-doped ZnO nanostructures and investigation of optical and photocatalytic properties. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6(1), 37-42.
Bahar Khodadadi; Maryam Bordbar. "Sonochemical synthesis of undoped and Co-doped ZnO nanostructures and investigation of optical and photocatalytic properties". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6, 1, 1394, 37-42.
Khodadadi, Bahar, Bordbar, Maryam. (1394). 'Sonochemical synthesis of undoped and Co-doped ZnO nanostructures and investigation of optical and photocatalytic properties', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6(1), pp. 37-42.
Khodadadi, Bahar, Bordbar, Maryam. Sonochemical synthesis of undoped and Co-doped ZnO nanostructures and investigation of optical and photocatalytic properties. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1394; 6(1): 37-42.

Sonochemical synthesis of undoped and Co-doped ZnO nanostructures and investigation of optical and photocatalytic properties

Iranian Journal of Catalysis
مقاله 4، دوره 6، شماره 1، خرداد 2016، صفحه 37-42    اصل مقاله (1.98 M)
نوع مقاله: Articles
نویسندگان
Bahar Khodadadi* ؛ Maryam Bordbar
Department of Chemistry, Faculty of Science, University of Qom, Qom, Iran.
چکیده
In this paper, undopedZnO and Co-ZnOnano structureswith different molar ratio of Cobalt have been synthesized by the sonochemical method. Structure have been characterized by Fourier Transform (FTIR) and UV–Vis spectroscopy,Scanning Electron Microscopy (SEM), Energy Dispersive Analytical X-Ray (EDAX), and X-Ray Diffraction (XRD) methods. Moreover, the direct band gap has been calculated by Tauc’s approach.Moreover, mean crystal size has been estimated by Scherrerequaton. Furthermore, photocatalytic activity for all samples has been investigated under UV irradiation in an aqueous medium. Compared with pure ZnO, the band gap of the Co-ZnOhas been shown decrease and it is dependent on the content of dopants. Also, photocatalytic activity improves in the presence of cobalt dopant.
کلیدواژه‌ها
Sonochemical method؛ Band gap؛ Phptocatalytic activity؛ ZnO nanostructure
مراجع
[1] P. Mishra, R.S. Yadav, A.C. Pandey, Ultrason. Sonochem. 17 (2010) 560–565.
[2] Y. Yoshino, T. Makino, Y. Katayama, T. Hata, Vacuum 59 (2000) 538–545.
[3] M.H. Habibi, E. Askari, Iran. J. Catal. 1 (2011) 41–44.
[4] H. R. Pouretedal, M. Ahmadi, Iran J. Catal. 3 (2013) 149–155.
[5] M. Fu, Y. Li, S. wu, P. Lu, J. Liu, F. Dong, Appl. Surf. Sci. 258 (2011) 1587–1592.
[6] P. Jongnavakit, P. Amornpitoksuka, S. Suwanboon, N. Ndiege, App. Surf. Sci. 258 (2012) 8192–8198.
[7] B. Wang, J. Iqbal, X. Shan, G. Huang, H. Fu, R. Yu, D. Yu, Mater. Chem. Phys. 113 (2009) 103–106.
[8] R.S. Yadav, P. Mishra, A.C. Pandey, Ultrason. Sonochem. 15 (2008) 863–868.
[9] L. Vayssieres, Adv. Mater. 15 (2003) 464–466.
[10] L. Vayssieres, K. Keis, S. E. Lindquist, A. Hagfeldt, J. Phys. Chem. B 105 (2001) 3350–33502.
[11] L. Vayssieres, K. Keis, A. Hagfeldt, S. E. Linquist, Chem. Mater. 13 (2001) 4395– 4398.
[12] L.E. Greene, M. Law, J. Goldberger, F. Kim, J.C. Johnson, Y. Zhang, R.J. Saykally, P. Yang, Angew. Chem. Int. Edn. Engl. 42 (2003) 3031–3034.
[13] B. Lin, H.C. Zeng, J. Am. Chem. Soc. 125 (2003) 4430-4431.
[14] M. Samadi, H. Asghari Shivaee., M. Zanetti, A. Pourjavadic, A. Moshfegha J. Mol. Catal. A: Chem. 359 (2012) 42– 48.
[15] Y. Ni, X. Wei, J. Hong, Y. Ye, Mater. Sci. Eng. B 121 (2005) 42– 47.
[16] M. Bordbar, B. Khodadadi, N. Mollatayefe, A.Yeganeh- Faal, J. App. Chem. 8 (2013) 43– 47.
[17] M. Srivastava, A.K. Ojha, S. Chaubey, P.K. Sharma, A.C. Pandey, J. Alloy. Compd. 494 (2010) 275–284.
[18] A. Al-Hajry, A. Umar, Y.B. Hahn, D.H. Kim, Superlattice Microst. 45 (2009) 529–534.
[19] H. Fu, C. Pan, W. Yao, Y. Zhu, J. Phys. Chem. B 109 (2005) 22432–22439.
[20] R.A. Nyquist, C.L.  Putzig, R.O. Kagel, M.A. Leugers, Academic press, 1971.
[21] R. Mohana, K. Krishnamoorthy S. Kima, Solid State Commun. 152 (2012) 375–380.
[22] J.C. Sin, S.M. Lam, K.T. Lee, A.R. Mohamed, Mater. Lett. 91 (2013) 1–4.
[23] X. Zhou, Y. Li, T. Peng, W. Xie, X. Zhao, Mater. Lett. 63 (2009) 1747–1749.
[24] S. Anandana, N. Ohashib, M. Miyauchi, Appl. Catal. B: Environ. 100 (2010) 502–509.
[25] B. Donkova, D. Dimitrov, M. Kostadinov, E. Mitkova, D. Mehandjiev, Mater. Chem. Phys. 123 (2010) 563-568.
[26] C. Wu, L. Shen, H. Yu, Y.C. Zhang, Q. Huang, Mater. Lett. 74 (2012) 236–238,
[27] J. Zhong, J. Li, X. He, J. Zeng, Y. Lu, W. Hu, K. Lin, Curr. Appl. Phys. 12 (2012) 998–1001.
[28] A. Patterson, Phys. Rev. 56 (1939) 978-982.
[29] X.C. Liu, E.W. Shi, Z.Z. Chen, H.W. Zhang, B. Xiao, L.X. Song, Appl. Phys. Lett. 88 (2006) 252501–252503.
[30] R. Hea, R. K. Hockingb, T. Tsuzukia, Mater. Chem. Phys. 132 (2012) 1035-1040.
[31] Y.H. Zheng, C.Q. Chen, Y.Y. Zhan, X.Y. Lin, Q. Zheng, K.M. Wei, J.F. Zhu, Y.J. Zhu, Inorg. Chem. 46 (2007) 6675-6682.
[32] N. Daneshvar, D. Salari, A.R. Khataee, J. Photochem. Photobiol. A: Chem. 162 (2004) 317-322.
[33] X. Qiu, G. Li, X. Sun, L. Li, X. Fu, Nanotechnology 19 (2008) 215703-21711.
[34] K.C. Barick, S. Singh, M. Aslam, D. Bahadur, Microporous Mesoporous Mater. 134 (2010) 195–202.
[35] L.Wang, Q. Hu., Z. Li, J. Guo, Y. Li, Mater. Lett. 79 (2012) 277–280.

آمار
تعداد مشاهده مقاله: 1,561
تعداد دریافت فایل اصل مقاله: 1,328


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب