Photocorrosion resistant Ag2CO3@Fe2O3/TiO2-NT nanocomposite for efficient visible light photocatalytic degradation activities

H H El-Maghrabi; A A Al-Kahlawy; Amr A Nada; T Zaki

doi:10.1016/j.jhazmat.2018.08.002

Photocorrosion resistant Ag₂CO₃@Fe₂O₃/TiO₂-NT nanocomposite for efficient visible light photocatalytic degradation activities

J Hazard Mater. 2018 Oct 15:360:250-256. doi: 10.1016/j.jhazmat.2018.08.002. Epub 2018 Aug 7.

Authors

H H El-Maghrabi¹, A A Al-Kahlawy¹, Amr A Nada², T Zaki³

Affiliations

¹ Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr city, 11727, Cairo, Egypt.
² Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Nasr city, 11727, Cairo, Egypt; EPRI Nanotechnology Center, Egyptian Petroleum Research Institute, Nasr city, 11727, Cairo, Egypt.
³ Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr city, 11727, Cairo, Egypt; EPRI Nanotechnology Center, Egyptian Petroleum Research Institute, Nasr city, 11727, Cairo, Egypt. Electronic address: tamer_zaki_sharara@epri.sci.eg.

PMID: 30121355
DOI: 10.1016/j.jhazmat.2018.08.002

Abstract

Ternary nanocomposite Ag₂CO₃@Fe₂O₃/TiO₂-NT (AFT), compared with binary Fe₂O₃/TiO₂-NT (FTNT) and TiO₂ nanotube (TNT), showed remarkably enhanced performance for catalytic photodegradation of phenol compounds in the presence of solar irradiation. AFT nanocomposite performed high degradation efficiency (96.5%) and high degree of sustainability. The unique catalytic properties of the nanocomposite such as synergetic light absorption, efficient charge separation-transfer and resistance toward photocorrosion suggested three possible alternative mechanisms for transferring photogenerated electrons. Ag₂CO₃@Fe₂O₃/TiO₂-NT nanocomposite may have a potential application for the industrial treatment of wastewater containing toxic organic contamination.

Keywords: Ferric oxide; Phenol; Photocatalysis; Silver; TiO(2)nanotube.