Synergistic Removal of Bromate and Ibuprofen by Graphene Oxide and TiO2 Heterostructure Doped with F: Performance and Mechanism

The results show that a demonstrable synergistic effect and excellent removal rate of bromate and IBP by FGT were exhibited

Yan Zhang; Jiarong Li; Hongyuan Liu

2020

Scholarcy highlights

  • With the development of industry and agriculture, the complex characteristics of water pollution are becoming more and more prominent
  • Due to its advantages of high efficiency, good photochemical stability, nontoxicity, and low cost, TiO2 photocatalysis has been proved to be one of the most promising environmentalfriendly technologies for the decomposition of environmental pollutants, and it has been widely studied in water treatment and air pollution control
  • The free radicals were measured by electron paramagnetic resonance, using dimethyl-1-pyrrolidine Noxide as a spin-trapping agent, deionized water and dimethyl sulfoxide as solvent for the detection of hydroxyl radical and superoxide radical, respectively
  • Humic acid is a typical representative of dissolved organic matter; the effect of HA on the photocatalytic removal of bromate and IBP coexisting solution was studied
  • Evaluation of the main types and roles of active species was discussed in light of scavenger experiments and free radical identification
  • The e, ⋅OH, and ⋅O2- are the primary active species involved in the photocatalytic degradation of bromate and IBP. e- is the main active substance in the bromate removal, while ⋅OH is the main active substance for the IBP removal

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