Journal
MATERIALS LETTERS
Volume 240, Issue -, Pages 88-91Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.12.132
Keywords
Cobalt oxide; Graphene aerogel; Peroxymonosulfate; Chloramphenicol
Funding
- National Natural Science Foundation of China [51478449, 51778598]
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Graphene aerogel with well-distributed CoO nanoparticles (CoO@GA) has been subtly fabricated by using methylamine as a multifunctional agent through hydrothermal and calcination processes for the degradation of chloramphenicol (CAP). The results showed that CoO@GA containing 27.3 wt% of CoO nanoparticles with size ranging from 30 to 60 nm exhibited high mechanical elastic property. The cyclic compression testing with strain up 50% showed CoO@GA can completely recover to its original form after compression. Compared with bare CoO, Co2+ or GA, CoO@GA performed the best degradation efficiency for CAP (95.8%) in the presence of peroxymonosulfate (PMS). Quenching experiment indicated HO center dot and O2(center dot) were the main active radicals generated in the CoO@GA-PMS system. The recycled experiments showed CoO@GA had stable efficiency (above 82.8%) within 9 times for the degradation of CAP. (C) 2019 Elsevier B.V. All rights reserved.
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