Photocatalytic Degradation of Allura Red by Mn-Ni co-doped Nanotitania under Visible Light Irradiation
Sankara Rao Miditana1, Siva Rao Tirukkovalluri2, Shaik Abdul Alim3, Imandi Manga Raju4

1Mr. Sankara Rao Miditana, Lecturer in Chemistry at STSN Government Degree College, Kadiri, Andhra Pradesh, India.
2Prof. T. Siva Rao, Professor and Research Director, Dept. of Inorganic & Analytical Chemistry, A.U. College of Science & Technology, Andhra University, Visakhapatanam, A.P, India
3Dr. Shaik Abdul Alim, Ph.D. A.U. College of Science & Technology, Andhra University, Visakhapatanam, A.P, India.
4Mr. Imandi Manga Raju, M.Sc, A.U. College of Science & Technology, Andhra University, Visakhapatanam, A.P, Inida.

Manuscript received on September 16, 2019. | Revised Manuscript received on 24 September, 2019. | Manuscript published on October 10, 2019. | PP: 550-557 | Volume-8 Issue-12, October 2019. | Retrieval Number: K24580981119/2019©BEIESP | DOI: 10.35940/ijitee.K2458.1081219
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Abstract: Photocatalyst has been extensive interest because of it’s new innovation to the reduce the contamination in the environment. A straight forward and economical procedure has been employed by sol-gel technique for the co-doping of Mn2+ and Ni2+ into TiO2 . The co-doped and undopedphotocatalysts were described by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray Spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), UV-Visible Diffused Reflectance Spectroscopy (UV Vis-DRS), Transmission electron Microscopy (TEM) and Brunauer-Emmett-Teller (BET). The portrayal results shows that anatase and rutile mixed phase was observed for some co-doped nanocatalysts and the remaining catalysts exhibits anatase phase only. It was observed by FT-IR that the shifting of frequency of Ti-O-Ti in the catalysts was seen due to substitutional doping of Mn and Ni by replace Ti and O, further the photocatalysts shows roughmorphology, irregular shape of particle with size (6.5nm) and having high surface area (135.70 m2 /g), less band energy (2.7 eV). The photocatalytic action of these materials was assessed by the degradation of Allura red (AR) as a contaminant. The results shows that AR has degraded within 60 minutes at doping concentrations 0.25 Wt% of Mn2+ion and 1.0 Wt% of Ni2+ ion in TiO2 (NMT2) at an optimum reaction parameters pH-4, catalyst dose 0.070g/Land at AR initial dye concentration 0.010g/L.
Keywords: Manganese, Nickel, Allura red, Photocatalysis, Sol-gel Mehtod, Co-doping, TiO2
Scope of the Article: Bio-Science and Bio-Technology