Open AccessSalicylic acid‐sensitised titanium dioxide for photocatalytic degradation of fast green FCF under visible light irradiation
Author(s) -
Tang WeiRenn,
Wu Tsunghsueh,
Lin YangWei
Publication year - 2019
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2018.5562
Subject(s) - photocatalysis , visible spectrum , titanium dioxide , photochemistry , radical , irradiation , salicylic acid , chemistry , nuclear chemistry , materials science , catalysis , organic chemistry , optoelectronics , biochemistry , physics , nuclear physics , metallurgy
Synthesis and modification of salicylic acid (SA) adsorbed titanium dioxide (SA‐TiO 2 ) was proposed through a sol–gel reaction following annealing treatment. The prepared SA‐TiO 2 exhibited visible light absorption because of the formation of an intramolecular ligand to metal charge transfer transition. The photocatalytic activity of SA‐TiO 2 for the degradation of fast green FCF under visible light irradiation was evaluated. The experimental results suggest that the enhanced photocatalytic activity of SA‐TiO 2 is attributed to the visible light absorption ability. Moreover, •OH and •O 2 − radicals are major active species involved in dye degradation. The practicality of SA‐TiO 2 was validated through the degradation of various dyestuff in environmental water samples under visible light irradiation.