Open AccessEffect of iron loading onto mesoporous titania nanoparticles and its photoactivity
Author(s) -
Nor Amira Marfur,
Nur Farhana Jaafar,
N. H. H. M. Habibullah
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/736/4/042034
Subject(s) - catalysis , mesoporous material , photocatalysis , materials science , visible spectrum , nanoparticle , fourier transform infrared spectroscopy , irradiation , electrochemistry , nuclear chemistry , doping , degradation (telecommunications) , chemical engineering , metal , inorganic chemistry , nanotechnology , chemistry , electrode , metallurgy , organic chemistry , telecommunications , physics , optoelectronics , computer science , nuclear physics , engineering
Titania is proven to be one of the best catalysts for various pollutant degradations. However, it can only be activated under UV light. This research was conducted to further enhance the photoactivity of titania under visible light irradiation by doping with iron metal. Different weight loadings of Fe (3, 5, 7 and 10 wt.%) supported on mesoporous titania nanoparticles (MT) were synthesised via a facile in-situ electrochemical method and denoted as 3FMT, 5FMT, 7FMT and 10FMT to degrade 2-chlorophenol (2-CP). These catalysts were characterised by XRD, FTIR and UV-Vis DRS. The photocatalytic activity of 3FMT was the most effective with 98% degradation probably due to its lowest band gap energy. This work showed that the catalyst functioned best with dosage 0.075 g in a solution of pH 5 and a concentration of 10 mg L −1 . Therefore, this study showed great enhancement in the photoactivity of the catalysts especially under visible light irradiation by lowering their band gaps.