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Open AccessArticle
Cobalt-Doped Hydrochar Derived from Microalgae as an Efficient Peroxymonosulfate Activator for Paraben Degradation
by
Chenyan Hu
Chenyan Hu
Dr. Chenyan Hu is a specially appointed professor of “Chutian Scholarship Fellow” in Hubei a of [...]
Dr. Chenyan Hu is a specially appointed professor of “Chutian Scholarship Fellow” in Hubei Province, a member of the innovation group in Hubei Province, and a master's supervisor at the School of Chemistry and Environmental Engineering, Wuhan Institute of Technology. She received a PhD at the School of Energy and Environment, City University of Hong Kong in 2015. After obtaining the Ph.D. degree, she conducted postdoctoral research at the same university. She mainly engages in the toxicological study of emerging pollutants as well as their removal by an advanced oxidation process.
1,2,†,
Suxin Wu
Suxin Wu 1,†,
Jiali Wang
Jiali Wang 1 and
Lianguo Chen
Lianguo Chen
Prof. Dr. Lianguo Chen is a researcher at the State Key Laboratory of Freshwater Ecology and of of a [...]
Prof. Dr. Lianguo Chen is a researcher at the State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences. He studied for a Ph.D. degree at Hong Kong University of Science and Technology from 2012 to 2016. After obtaining the Ph.D. degree, he entered the State Key Laboratory of Marine Pollution, City University of Hong Kong for Postdoctoral research. He has won the National 1000-Talent Program, the Chinese Academy of Sciences 100-Talent Program, the Hubei Province Distinguished Young Scholar Foundation, and the Wuhan Yellow Crane Talent Program. His main research direction is ecotoxicology, elucidating the environmental behavior, toxic effects, mechanisms of action, and control techniques of typical or novel persistent organic pollutants.
3,*
1
School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430072, China
2
Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Wuhan 430072, China
3
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Catalysts 2024, 14(10), 695; https://doi.org/10.3390/catal14100695 (registering DOI)
Submission received: 21 August 2024
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Revised: 25 September 2024
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Accepted: 5 October 2024
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Published: 6 October 2024
Abstract
Hydrochar, an attractive member of the carbonaceous materials, is derived from biomass and projects great potential in peroxymonosulfate (PMS) activation, but has not been studied much. Herein, by using the large-scale cultured Chlorella vulgaris and field-collected bloom algae, a series of porous hydrochar was synthesized via a facile hydrothermal carbonization reaction, while Co doping significantly increased their specific surface areas, carbonization degree, and surface functional groups. These Co-doped hydrochar (xCo-HC, x: amount of the Co precursor) could efficiently activate the PMS, resulting in nearly 100% removal of five common paraben pollutants within 40 min. A dosage of 0.2Co-HC of 0.15 g/L, a PMS concentration of 0.6 g/L, and an unadjusted pH of 6.4 were verified more appropriately for paraben degradation. The coexistence of Cl−, SO42−, and humic acid inhibited the degradation, while HCO3− showed an enhancing effect. No observable change was found at the presence of NO3−. Quenching results illustrated that the produced •SO4− during the conversion of doped Co3+/Co2+ acted as the dominant active species for paraben degradation, while •O2−, 1O2, and •OH contributed relatively less. The algae-based hydrochar potentially facilitated the electron transfer in the xCo-HC/PMS system. Overall, this study develops a new strategy for resource utilization of the abundant algae.
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MDPI and ACS Style
Hu, C.; Wu, S.; Wang, J.; Chen, L.
Cobalt-Doped Hydrochar Derived from Microalgae as an Efficient Peroxymonosulfate Activator for Paraben Degradation. Catalysts 2024, 14, 695.
https://doi.org/10.3390/catal14100695
AMA Style
Hu C, Wu S, Wang J, Chen L.
Cobalt-Doped Hydrochar Derived from Microalgae as an Efficient Peroxymonosulfate Activator for Paraben Degradation. Catalysts. 2024; 14(10):695.
https://doi.org/10.3390/catal14100695
Chicago/Turabian Style
Hu, Chenyan, Suxin Wu, Jiali Wang, and Lianguo Chen.
2024. "Cobalt-Doped Hydrochar Derived from Microalgae as an Efficient Peroxymonosulfate Activator for Paraben Degradation" Catalysts 14, no. 10: 695.
https://doi.org/10.3390/catal14100695
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