Valorization of plastics and paper mill sludge into carbon composite and its catalytic performance for acarbon material consisted of the multi-layerzo dye oxidation
- Authors
- Kwon, Gihoon; Cho, Dong-Wan; Wang, Hailong; Bhatnaga,r Amit; Song, Hocheol
- Issue Date
- Nov-2020
- Publisher
- ELSEVIER
- Keywords
- Azo dye degradation; Catalyst; Co-pyrolysis; CO2 utilization; Persulfate activation; Waste management
- Citation
- JOURNAL OF HAZARDOUS MATERIALS, v.398, pp.1 - 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF HAZARDOUS MATERIALS
- Volume
- 398
- Start Page
- 1
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190080
- DOI
- 10.1016/j.jhazmat.2020.123173
- ISSN
- 0304-3894
- Abstract
- In this work, polyvinyl chloride (PVC) and paper mill sludge (PMS) were co-pyrolyzed under two environments of N-2 and CO2. The pyrolysis process was assessed by conducting thermogravimetric analysis (TGA) and monitoring the evolution of gaseous products. The resulting solid composites were characterized using XRD, XPS, BET, and Raman analyzers, and their ability to catalytically activate persulfate (S2O82-) was tested by conducting methyl orange (MO) degradation experiments. Co-pyrolysis of PVC and PMS at the same mass ratio (1:1) in CO2 resulted in the highest production of H-2 and CO (0.36 mol % H-2 at 480 degrees C & 1.53 mol % CO at 700 degrees C). The characterization results revealed that the composite consisted of Fe3O4, highly graphitic carbon, and mesoporous structure. In MO oxidation experiments, the co-pyrolyzed composite actively generated OH center dot and SO4 center dot- by activating S2O82- to achieve complete removal of 5 mg L-1 of MO during 100 min at acidic-neutral pH condition. The composite was also able to complete 3 successive cycles of MO oxidation without deactivation. Consequently, the feasibility of achieving the simultaneous production of energy resources and catalyst via industrial wastes utilization in pyrolytic process was demonstrated.
- 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/190080)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.