Study of the photocatalytic effect of the Ti-doped hydroxyapatite in the degradation of methylene blue solution

Authors

  • Anas Salhi Laboratory of Water and Environment, Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, PO. Box 20, El Jadida 24000, Morocco.
  • Abdelatif Aarfane Laboratory of Water and Environment, Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, PO. Box 20, El Jadida 24000, Morocco.
  • Soufiane Tahiri Laboratory of Water and Environment, Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, PO. Box 20, El Jadida 24000, Morocco.
  • Layachi Khamliche Faculty of Sciences of El Jadida
  • Mohammed Bensitel Faculty of Sciences of El Jadida
  • Fouad Bentiss Faculty of Sciences of El Jadida
  • Mohammed El Krati Laboratory of Water and Environment, Department of Chemistry, Faculty of Sciences, University Chouaïb Doukkali, PO. Box 20, El Jadida 24000, Morocco.

DOI:

https://doi.org/10.13171/mjc.4.1.2015.16.01.20.30/salhi

Abstract

Organic dyes and colouring textile agents are persistent pollutant materials that are difficult to decompose by microbiological treatment processes. Their oxidation through photocatalysis is an alternative way to prevent contamination of the environment. In this work, calcium deficient hydroxyapatite (HAP) was synthesized and doped with different amounts of titanium. The performance capability of prepared catalyst to degrade methylene blue dye (MB) in aqueous heterogeneous solutions has been demonstrated. The main parameters which govern the photocatalytic treatment efficiency, such as titanium amount in HAP, initial concentration of MB, amount of the catalyst added to solution, UV-irradiation period and bubbling oxygen have been investigated. Photodegradation of  MB is found to be effective with HAP/Ti 11% in oxygenated medium. However, pH has no significant effect on the yield of discoloration. 

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Published

2015-03-14

Issue

Vol. 4 No. 1 (2015)

Section

Environmental Chemistry

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