Water Research, Journal Year: 2022, Volume and Issue: 225, P. 119191 - 119191
Published: Oct. 1, 2022
Language: Английский
Water Research, Journal Year: 2022, Volume and Issue: 225, P. 119191 - 119191
Published: Oct. 1, 2022
Language: Английский
Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(23), P. 16078 - 16087
Published: Oct. 11, 2021
Graphitized nanodiamonds (ND) exhibit outstanding capability in activating peroxymonosulfate (PMS) for the removal of aqueous organic micropollutants (OMPs). However, controversial observation and interpretation regarding effect graphitization degree on ND's activity role singlet oxygen (1O2) OMP degradation need to be clarified. Herein, we investigated graphitized ND-mediated PMS activation. Experiments show that ND increases first then decreases with monotonically increased degree. Further experimental theoretical studies unveil intensified surface alters mechanism from oxygenation an electron-transfer pathway. Moreover, time, applied a self-constructed, time-resolved phosphorescence detection system provide direct evidence 1O2 production PMS-based system. This work not only elucidates degree-dependent activation but also provides reliable situ analysis future studies.
Language: Английский
Citations
233Applied Catalysis B Environment and Energy, Journal Year: 2021, Volume and Issue: 301, P. 120749 - 120749
Published: Sept. 28, 2021
Language: Английский
Citations
166Chemosphere, Journal Year: 2021, Volume and Issue: 286, P. 131849 - 131849
Published: Aug. 12, 2021
Language: Английский
Citations
147Water Research, Journal Year: 2023, Volume and Issue: 235, P. 119889 - 119889
Published: March 20, 2023
Language: Английский
Citations
42Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 56(2), P. 1221 - 1232
Published: Dec. 27, 2021
This paper investigated ultraviolet A light-emitting diode (UVA-LED) irradiation to activate Fe(VI) for the degradation of micropollutants (e.g., sulfamethoxazole (SMX), enrofloxacin, and trimethoprim). UVA-LED/Fe(VI) could significantly promote micropollutants, with rates that were 2.6-7.2-fold faster than alone. Comparatively, UVA-LED alone hardly degraded selected micropollutants. The performance was further evaluated in SMX via different wavelengths (365-405 nm), light intensity, pH. Increased led linearly decreased because has a lower molar absorption coefficient at higher wavelengths. Higher intensity caused degradation, owing enhanced level reactive species by stronger photolysis Fe(VI). Significantly, gradually suppressed from pH 7.0 9.0 due changing speciation Scavenging probing experiments identifying oxidative indicated high-valent iron (Fe(V)/Fe(IV)) responsible degradation. kinetic model involving target compound (TC) Fe(VI), Fe(V), Fe(IV) employed fit TC kinetics UVA-LED/Fe(VI). fitted results revealed Fe(V) primarily contributed this system. In addition, transformation products identified possible pathways included hydroxylation, self-coupling, bond cleavage, oxidation reactions. Removal real water also showed remarkable promotion Overall, these findings shed on understanding application eliminating treatments.
Language: Английский
Citations
96Water Research, Journal Year: 2022, Volume and Issue: 217, P. 118414 - 118414
Published: April 6, 2022
Language: Английский
Citations
62Environmental Pollution, Journal Year: 2021, Volume and Issue: 291, P. 118014 - 118014
Published: Aug. 20, 2021
Language: Английский
Citations
57Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 424, P. 127341 - 127341
Published: Sept. 27, 2021
Language: Английский
Citations
56Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 455, P. 140476 - 140476
Published: Nov. 28, 2022
Language: Английский
Citations
54The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 844, P. 157162 - 157162
Published: July 5, 2022
Language: Английский
Citations
46