Photo-catalytic Degradation of Methyl Orange Dye using ZnS and N-doped ZnS Nanoparticles under Visible Radiation


  • Haramaya University, Chemistry Department, Dire Dawa, Ethiopia
  • Central University, Chemistry Department, Srinagar, Uttarakhand, India
  • Panjab University, Chemistry Department, Chandigarh, 160014, India


ZnS and N-doped-ZnS nanoparticles were prepared by aqueous chemical method under optimal conditions and characterized using XRD, TEM and UV-Visible spectroscopic techniques. As-synthesized nanomaterials were used as a photo-catalysts for the degradation of Methyl Orange (MO) dye. Effects of photo-catalyst load, pH, and substrate initial concentration on degradation of the dye in aqueous solution have been investigated. Maximum degradation (76.56 %) of methyl orange was observed using optimum pH 6 and catalyst load 250 mgL-1.


Methyl Orange, Photo Catalysis, Nanoparticles, Rate of Degradation, XRD TEM.

Subject Discipline


Full Text:


C. Hun and Z. Y. Wang, Chemosphere., 39, 2107 (1999).

J. Kiwi, C. M. Pulgarine and P. P. Gratzel, Appl. Catal. B.: Environ., 3, 85 (1993).

J. Li, Y. Xu, Y. Liu, D. Wu, and Y. Sun, Chin. Particuol., 2, 266 (2004).

W. Z. Tang and H. An, Chemosphere, 31, 4171 (1995).

D. F. Oills and H. Al-Ekabi, Photocatalytic Purification and Treatment of Water and Air, Elsevier, Amsterdam (1993).

M. R. Hoffmann, T. S. Martin, W. Choi, and D. W. Bahnemann, Chem. Rev., 95, 69 (1995).

T. V. Gerven, G. Mul, J. Moulijn, and A. Stankiewicz, Chem. Eng. Proc., 46, 781 (2007).

A. B. Patil, R. K. Patil, and K. S. Pardeeshia, J. Hazard. Mater., 183, 315 (2010).

G. Keros, T. Abi and O. P. Yadav, J. Surface Sci. Technol., 29, 1 (2013).

E. Alemseged, O. P. Yadav and R. K. Bachheti, International J. Chem. Tech. Research, 5, 1452 (2013).

W. Tesfay, O. P. Yadav, T. Abi, and J. Kaushal, Bull. Chem. Soc. Ethiopia, 27, 1 (2013).

K. Loghman, Z. Salar, J. Nanostructure in Chemistry, 3, 32 (2013).

Y. Ruzmanova, M. Stoller and A. Chianese, Chem. Engg. Transaction, 32, 2260 (2013).

M. Zheng and J. Wu, Appl. Sur. Sci., 255, 5656 (2009).

R. Asahi and T. Morikawa, J. Chem. Phys., 339, 57 (2007).

M. El-Kemary, H. El-Shamy and I. El-Mehasseb, J. Lumin., 130, 2327 (2010).

M. S. T. Goncalves, F. M. A. Oliveira-Campos, S. M. M. Pinto, S. M. P. Plasencia and P. R. Queiroz, Chemosphere, 39, 781 (1999).

M. Barjasteh-Moghaddam and A. Habibi-Yangjeh, J. Iran. Chem. Soc., 8, S172 (2010).

H. R. Pouretedal, A. Norozi, H. M. Keshavarz, and A. Semnani, J. Hazard. Mater., 162, 674 (2009).


  • There are currently no refbacks.