Effect of Annealing Temperature on The Improved Photo Catalytic Degradation of Zinc Sulfide Thin Films Under Visible Light Irradiation
S. Kannan1, N.P. Subiramaniyam2, SU. Lavanisadevi3, M. Sathishkumar4
1S. Kannan*, Department of Electronics and Communication systems, Nehru Arts and Science College, Coimbatore, Tamil Nadu, India.
2N.P. Subiramaniyam, Department of Electronics and Communication Systems, Nehru Arts and Science College, Coimbatore, Tamil Nadu, India.
3SU. Lavanisadevi, Department of Physics, Sri Saradha College for Women, Salem, Tamil Nadu, India.
4M. Sathishkumar, Department of Electronics and Communication Systems, Nehru Arts and Science College, Coimbatore, Tamil Nadu, India.
Manuscript received on April 02, 2020. | Revised Manuscript received on April 19, 2020. | Manuscript published on May 30, 2020. | PP: 237-241 | Volume-9 Issue-1, May 2020. | Retrieval Number: A1266059120/2020©BEIESP | DOI: 10.35940/ijrte.A1266.059120
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Abstract: Here, we reported a modern sort of zinc sulfide thin films as a catalyst was prepared from simple sol-gel approach. The as-deposited samples were further annealed at 200, 300, 4000 C temperatures under atmospheric environment. The variation in the annealing temperature becomes crucial for optimizing the prepared samples characterization and dye degradation behavior. Structural and morphological analysis recommends that test were hexagonal crystal structure and spherical shaped morphology, particle size was found within the range of 25-40 nm. The significant red shift was found within the absorption edge and lessening of energy in the band gap was found whereas the annealing temperature is increased from 200 to 400 oC. Recombination of photo-generated electron-hole sets was moreover distinguished and the photo-degradation test was monitored methylene blue dye solutions under visible light irradiation. The 400 oC annealed sample showed superior photocatalytic performance such as high degradation efficiency and long term stability towards MB dye.
Keywords: ZnS; Annealing Temperature; Sol-Gel; Photo-degradation; Methyl blue; Visible light; Electron-hole separation.
Scope of the Article: IoT Application and Communication Protocol