6TH International Congress on Technology - Engineering - Kuala Lumpur3 - Malaysia (2018-07-19)

Synthesis And Characterization Of Zinc Nitroprusside And Study Of Its Photocatalytic Activity In Sunlight Irradiation By Degradation Of Methyl Orange

The synthesis of zinc nitroprusside (ZnNP) has been described and elaborated by the drop by drop method [1, 2]. The polycyanide metal of general formula [M(CN)5L]n- where M = Fe, Ru, Os, L being a variable ligand (CN-, NH3, NO, H2O, CO, amines, etc.) have found a wide application to the reason of their electronic structures. Nitroprusside (NP) is one of the ligands that has found wide application in coordination chemistry, due to its ability to coordinate with various transition metals [3, 4]. The synthesized zinc nitroprusside (ZnNP) complex was characterized by various analytical techniques (XRD, SEM, Raman spectroscopy and optical microscope). Figure. 2: SEM image of the zinc nitroprusside complex. The photocatalytic activity of this complex was evaluated by the degradation of orange methyl (MO) under sunlight irradiation. The influence of the parameters on the degradation photocatalytic of MO, namely: the amount of the complex (catalyst), the amount of H2O2, the pH and the initial concentration of MO, was studied. The photocatalytic results showed that, the zinc nitroprusside catalyst displayed the highest degradation rate with 99.1% at 10 min under sunlight irradiation, when the catalyst amount was 0.5 g/L, pH= 2, the amount of H2O2 was 0.4 mL and the initial concentration of MO was 0,01 g/L. Keywords: catalytic activity, characterization, degradation photocatalytic, zinc nitroprusside. References: [1] Devaramani S, Malingappa P. Synthesis and characterization of cobalt nitroprusside nano-particles: Application to sul?te sensing in food and water samples. Electrochimica Acta. 2012 Sep 06; 85: 579–587. [2] Devaramani S, Malleshappa J, Kempahanumakkagari S, Thippeswamy R, Mahalingappagari P. Synthesis of Nickel Nitroprusside Coordination Nanoparticles by Simple Means: Its Characterization and Use as Electrochemical Sensor for Sulfide Estimation in Sewage and Water Samples. Int. J. Electrochem. Sci. 2014; 9: 4692 - 4708 [3] Cano A, Osiry H, Reguera L, Lemus-Santana A, Reguera E. Mercury(II) nitroprusside: A framework with an unusual topology. Journal of Solid State Chemistry. 2015 Jan 14; 225: 315–320. [4] Echevarr?a F, Reguera L, Gonz?lez M, Galicia J, ?vila M, Reguera E. Hydrothermal recrystallization of transition metal nitroprussides. Formation of the most stable phases. Journal of Solid State Chemistry. 2018 Feb; 258: 566-572. .
Abdelkrim DJEBLI, Toufik METIDJI, Hadjer MAMINE, Hcene BENDJEFFAL, Amel BOUDJEMAA, Yacine BOUHEDJA