Formation of Cobalt Doped Zinc Oxide Photocatalyst for Methyl Orange Degradation

Abstract:

The formation of cobalt (Co) doped zinc oxide (ZnO) as photocatalyst for photodegradation of methyl orange dye was investigated. The ZnO photocatalyst was produced with different concentration of Co by using sol gel method. The hexagonal wurtzite and zincite structure were successfully formed through this method. The morphological observation of nanorod and nanodisk structure formed was done by Field Emission Scanning Electron Microscope (FESEM). While, the structural properties of Co doped ZnO were identified by X-ray Diffraction (XRD) and Raman spectroscopy. The degradation performance of methyl orange was assessed and performance of photocatalytic activity was correlated to the amount of dopant level and oxygen vacancy of photocatalyst. There is an optimum amount of Co that can be doped into ZnO nanostructure in order to provide better degradation of methyl orange.

• Periodical: Solid State Phenomena (Volume 264)
• Pages: 211-214
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.264.211
• Online since: September 2017
• Authors: Farah Iddayu Abu Bakar, Katerina Anak Birang, Mohd Azam Mohd Adnan, Jeefferie Abd Razak, Syahriza Ismail*
• Keywords: Cobalt, Nanorod, Photocatalyst, Sol-Gel, Zinc Oxide

References

[1] Z. Carmen, S. Daniela, Textile organic dyes-characteristics, polluting effects and separation/elimination procedures from industrial effluents-a critical overview, Organic Pollutants Ten Years After the Stockholm Convention-Environmental and Analytical Update. InTech: Croatia, (2012).

DOI: 10.5772/32373

[2] K. Mondal, A. Sharma, Photocatalytic oxidation of pollutant dyes in wastewater by TiO2 and ZnOnano-materials- a mini review, InNanoscience& Technology for Mankind, (2014) 36-72.

[3] A. K-Radzimska, T. Jesionowski, Zinc oxide-from synthesis to application: a review, Materials, 7 (2014) 2833-2881.

DOI: 10.3390/ma7042833

[4] S. Bhukal, Shivali, S. Singhal, Magnetically separable copper substituted cobalt-zinc nano-ferrite photocatalyst with enhanced photocatalytic activity, Materials Science in Semiconductor Processing, 26 (2014) 467-476.

DOI: 10.1016/j.mssp.2014.05.023

[5] S. Kuriakose, B. Satpati, S. Mohapatra, Enhanced photocatalytic activity of Co doped ZnOnanodisk and nanorods prepared by a facile wet chemical method, Physical Chemistry Physics, 16 (2014) 12741-12749.

DOI: 10.1039/c4cp01315h

[6] Y. Lu, Y. Lin, D. Wang, L. Wang, T. Xie, T. Jiang, A high performance cobalt-doped ZnO visible light photocatalyst and its photogenerated charge transfer properties, Nano Research, 4 (2011) 1144-1152.

DOI: 10.1007/s12274-011-0163-4