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Double-layered TiO2/activated carbon films with enhanced photocatalytic activity towards methylene blue degradation

PORNSIT LORKIT1,2, NUNTANID PHATHARAPEETRANUN1, BUSSARIN KSAPABUTR1,2,* , SUJITRA WONGKASEMJIT3, NATTAWUT CHAIYUT1, MANOP PANAPOY1,2,*

Affiliation

  1. Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Sanamchandra Palace Campus, Nakhon Pathom 73000, Thailand
  2. High Performance and Smart Materials, Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
  3. The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand

Abstract

Double-layered films of TiO2 and activated carbon were fabricated on aluminum substrates by electrophoretic deposition. Moreover, TiO2 powder was synthesized by solvothermal process. The photocatalytic efficiency and reusability of the resulting films were tested for the photodegradation of methylene blue under ultraviolet irradiation. The double-layered films obtained using the synthesized TiO2 exhibited the highest photodegradation efficiency (94%) for removing methylene blue. The immobilized film could solve the problem of separation and recovery of powder catalyst in practical applications. Therefore, the imobilized systems are an advantage for wastewater treatment because they are cost-effective, eco-friendly and reusable with relatively high photocatalytic performance..

Keywords

Titanium dioxide, Activated carbon, Double-layered films, Electrophoretic deposition, Photocatalyst.

Citation

PORNSIT LORKIT, NUNTANID PHATHARAPEETRANUN, BUSSARIN KSAPABUTR, SUJITRA WONGKASEMJIT, NATTAWUT CHAIYUT, MANOP PANAPOY, Double-layered TiO2/activated carbon films with enhanced photocatalytic activity towards methylene blue degradation, Optoelectronics and Advanced Materials - Rapid Communications, 12, 5-6, May-June 2018, pp.347-352 (2018).

Submitted at: Nov. 2, 2017

Accepted at: June 7, 2018