Covalent organic polymer derived carbon nanocapsule-supported cobalt as a catalyst for activating monopersulfate to degrade salicylic acidopen access
- Authors
- Duong Dinh Tuan; Chang, Fang-Chih; Chen, Pen-Yuan; Kwon, Eilhann; You, Siming; Tong, Shaoping; Lin, Kun-Yi Andrew
- Issue Date
- Aug-2021
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Covalent organic polymers; Cobalt; N-doped carbon; MPS; Salicylic acid
- Citation
- JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v.9, no.4
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
- Volume
- 9
- Number
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190187
- DOI
- 10.1016/j.jece.2021.105377
- ISSN
- 2213-3437
- Abstract
- As salicylic acid (SAC) is an extensively used pharmaceutical, discharge of SAC into the environment has caused serious threats to ecology in view of its toxicity. Therefore, SO4 center dot--involved chemical oxidation methods have been employed for eliminating SAC. Since monopersulfate (MPS) has become a popular reagent for producing SO4 center dot-, an alternative heterogeneous Co-based catalyst is proposed by using a Co-coordinated covalent organic polymers (Co-COP) as a precursor. Via carbonization, Co-COP is transferred by conversion of Co ions to Co/CoO nanoparticle and conversion of COP to N-doped carbon nanocapsules (CNC), respectively, to form a unique composite of Co NPs embedded into carbon nanocapsule (CoCNC). CoCNC exhibits a higher catalytic activity than Co3O4 nanoparticle for activating MPS to degrade SAC because of synergistic effects between Co NPs and the N-doped CNC which not only acts as the support but also provides active sites. Hence, CoCNC+MPS could afford a much lower Ea value (25.4 kJ/mol) of SAC degradation than the reported values. Moreover, CoCNC is still efficient for removing SAC even in the presence of high-concentration NaCl and SDS. CoCNC can be also recyclable over many cycles and maintain its catalytic activities, confirming that CoCNC is an advantageous catalyst for MPS activation.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 자원환경공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190187)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.