Catalytic hydrodechlorination of dioxins over palladium nanoparticles in supercritical CO2 swollen microcellular polymers
Ben Zen Wu
1
,
Hsiang-yu Chen
2
,
Joanna S Wang
3
,
Chung-Sung Tan
4
,
C. M. Wai
3
,
Weisheng Liao
1
,
Konghwa Chiu
1
Publication type: Journal Article
Publication date: 2012-08-01
scimago Q1
wos Q1
SJR: 3.078
CiteScore: 24.6
Impact factor: 11.3
ISSN: 03043894, 18733336
PubMed ID:
22640823
Environmental Chemistry
Environmental Engineering
Health, Toxicology and Mutagenesis
Pollution
Waste Management and Disposal
Abstract
In this study, palladium nanoparticles embedded in monolithic microcellular high density polyethylene supports are synthesized as heterogeneous catalysts for remediation of 1,6-dichlorodibenzo-p-dioxin and 2,8-dichlorodibenzofuran in 200 atm of supercritical carbon dioxide containing 10 atm of hydrogen gas and at 50-90°C. Stepwise removal of chlorine atoms takes place first, followed by saturation of two benzene rings with slower reaction rates. The pseudo first order rate constant of initial hydrodechlorination for 2,8-dichlorodibenzofuran is 4.3 times greater than that for 1,6-dichlorodibenzo-p-dioxin at 78°C. The catalysts are easily separated from products and can be recyclable and reusable without complicated recovery and cleaning procedures.
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8
Total citations:
8
Citations from 2024:
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(12.5%)
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GOST
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Wu B. Z. et al. Catalytic hydrodechlorination of dioxins over palladium nanoparticles in supercritical CO2 swollen microcellular polymers // Journal of Hazardous Materials. 2012. Vol. 227-228. pp. 18-24.
GOST all authors (up to 50)
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Wu B. Z., Chen H., Wang J. S., Tan C., Wai C. M., Liao W., Chiu K. Catalytic hydrodechlorination of dioxins over palladium nanoparticles in supercritical CO2 swollen microcellular polymers // Journal of Hazardous Materials. 2012. Vol. 227-228. pp. 18-24.
Cite this
RIS
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TY - JOUR
DO - 10.1016/j.jhazmat.2012.04.075
UR - https://doi.org/10.1016/j.jhazmat.2012.04.075
TI - Catalytic hydrodechlorination of dioxins over palladium nanoparticles in supercritical CO2 swollen microcellular polymers
T2 - Journal of Hazardous Materials
AU - Wu, Ben Zen
AU - Chen, Hsiang-yu
AU - Wang, Joanna S
AU - Tan, Chung-Sung
AU - Wai, C. M.
AU - Liao, Weisheng
AU - Chiu, Konghwa
PY - 2012
DA - 2012/08/01
PB - Elsevier
SP - 18-24
VL - 227-228
PMID - 22640823
SN - 0304-3894
SN - 1873-3336
ER -
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BibTex (up to 50 authors)
Copy
@article{2012_Wu,
author = {Ben Zen Wu and Hsiang-yu Chen and Joanna S Wang and Chung-Sung Tan and C. M. Wai and Weisheng Liao and Konghwa Chiu},
title = {Catalytic hydrodechlorination of dioxins over palladium nanoparticles in supercritical CO2 swollen microcellular polymers},
journal = {Journal of Hazardous Materials},
year = {2012},
volume = {227-228},
publisher = {Elsevier},
month = {aug},
url = {https://doi.org/10.1016/j.jhazmat.2012.04.075},
pages = {18--24},
doi = {10.1016/j.jhazmat.2012.04.075}
}