4.6 Article

Degradation of the UV Filter Benzophenone-4 by Ferrate (VI) in Aquatic Environments Rouyi

Journal

PROCESSES
Volume 10, Issue 9, Pages -

Publisher

MDPI
DOI: 10.3390/pr10091829

Keywords

benzophenone-4; ferrate (VI); oxidation; kinetics

Funding

  1. National Natural Science Foundation of China [21607058]
  2. Zhejiang Provincial Natural Science Foundation of China [LY21B070008, LY21B070007]
  3. Department of Education of Zhejiang Province [Y201840526]
  4. Scientific Research Startup Foundation for Leading Professor from Jiaxing University [CD70519063]
  5. Student Research Innovation Team Funding Project of Zhejiang [2019R417027]
  6. PublicWelfare Research Project of Jiaxing [2020AY10005, 2021AY10069, 2021AD10008]
  7. National innovation and entrepreneurship training program for College Students [202113291013]

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This study demonstrates the potential utility of ferrate(VI)-based advanced oxidation processes for the degradation of BP-4 UV filter. The operational parameters were determined and the effects of water constituents were investigated. The results showed that BP-4 removal rate could reach 95% under specific conditions.
This work demonstrates the potential utility of ferrate(VI)-based advanced oxidation processes for the degradation of a representative UV filter, BP-4. The operational parameters of oxidant dose and temperature were determined with kinetic experiments. In addition, the effects of water constituents including anions (Cl-, HCO3-, NO3-, SO42), cations (Na+, K+, Ca2+, Mg2+, Cu2+, Fe3+), and humic acid (HA) were investigated. Results suggested that the removal rate of BP-4 (5 mg/L) could reach 95% in 60 min, when [Fe(VI)]:[BP-4] = 100:1, T = 25 degrees C and pH = 7.0, The presence of K+, Cu2+ and Fe3+ could promote the removal of BP-4, but Cl-, SO42-, NO3-, HA and Na+ could significantly inhibit the removal of BP-4. Furthermore, this Fe(VI) oxidation processes has good feasibility in real water samples. These results may provide useful information for the environmental elimination of benzophenone-type UV filters by Fe(VI).

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