Abstract
This study investigated the photocatalytic degradation of chlorophenols using two different types of porphyrin core star block copolymers (P-PSD and P-PD) with irradiation using visible light. Both P-PSD and P-PD catalysts show similar tendencies in the degradation of chlorophenols. Pentachlorophenol degraded faster than other chlorinated phenols (pentachlorophenol. >. 2,4,6-trichlorophenol. >. 2,4-dichlorophenol). The removal rate of chlorophenols using P-PSD was higher than the removal rate using P-PD, a difference which could be attributed to the hydrophobicity of P-PSD. The degradation intermediates and by-products of the chlorophenols were also identified. The analysis results revealed that the degradation of highly-chlorinated phenols was more rapid than the degradation of the less-chlorinated phenols, as confirmed by residual chlorinated compound and chloride ions that were released. The newly synthesized P-PSD catalyst is non-toxic to bacteria. For these reasons, the process of photocatalytic degradation using porphyrin core star block copolymers has potential advantages for the degradation of dissolved chlorophenol pollutants in water.
| Original language | English |
|---|---|
| Pages (from-to) | 921-928 |
| Number of pages | 8 |
| Journal | Chemical Engineering Journal |
| Volume | 215-216 |
| DOIs | |
| Publication status | Published - 2013 Jan 5 |
Fingerprint
Keywords
- Chlorophenols
- Hydrophobicity
- Photocatalytic degradation
- Porphyrin
- Star block copolymer
- Toxicity
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Industrial and Manufacturing Engineering
- Environmental Chemistry
Cite this
Photocatalytic degradation of chlorophenols using star block copolymers : Removal efficiency, by-products and toxicity of catalyst. / Chung, Seung Gun; Chang, Yoon Seok; Choi, Jae Woo; Baek, Kyung Youl; Hong, Seok Won; Yun, Seong Taek; Lee, Sang-Hyup.
In: Chemical Engineering Journal, Vol. 215-216, 05.01.2013, p. 921-928.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Photocatalytic degradation of chlorophenols using star block copolymers
T2 - Removal efficiency, by-products and toxicity of catalyst
AU - Chung, Seung Gun
AU - Chang, Yoon Seok
AU - Choi, Jae Woo
AU - Baek, Kyung Youl
AU - Hong, Seok Won
AU - Yun, Seong Taek
AU - Lee, Sang-Hyup
PY - 2013/1/5
Y1 - 2013/1/5
N2 - This study investigated the photocatalytic degradation of chlorophenols using two different types of porphyrin core star block copolymers (P-PSD and P-PD) with irradiation using visible light. Both P-PSD and P-PD catalysts show similar tendencies in the degradation of chlorophenols. Pentachlorophenol degraded faster than other chlorinated phenols (pentachlorophenol. >. 2,4,6-trichlorophenol. >. 2,4-dichlorophenol). The removal rate of chlorophenols using P-PSD was higher than the removal rate using P-PD, a difference which could be attributed to the hydrophobicity of P-PSD. The degradation intermediates and by-products of the chlorophenols were also identified. The analysis results revealed that the degradation of highly-chlorinated phenols was more rapid than the degradation of the less-chlorinated phenols, as confirmed by residual chlorinated compound and chloride ions that were released. The newly synthesized P-PSD catalyst is non-toxic to bacteria. For these reasons, the process of photocatalytic degradation using porphyrin core star block copolymers has potential advantages for the degradation of dissolved chlorophenol pollutants in water.
AB - This study investigated the photocatalytic degradation of chlorophenols using two different types of porphyrin core star block copolymers (P-PSD and P-PD) with irradiation using visible light. Both P-PSD and P-PD catalysts show similar tendencies in the degradation of chlorophenols. Pentachlorophenol degraded faster than other chlorinated phenols (pentachlorophenol. >. 2,4,6-trichlorophenol. >. 2,4-dichlorophenol). The removal rate of chlorophenols using P-PSD was higher than the removal rate using P-PD, a difference which could be attributed to the hydrophobicity of P-PSD. The degradation intermediates and by-products of the chlorophenols were also identified. The analysis results revealed that the degradation of highly-chlorinated phenols was more rapid than the degradation of the less-chlorinated phenols, as confirmed by residual chlorinated compound and chloride ions that were released. The newly synthesized P-PSD catalyst is non-toxic to bacteria. For these reasons, the process of photocatalytic degradation using porphyrin core star block copolymers has potential advantages for the degradation of dissolved chlorophenol pollutants in water.
KW - Chlorophenols
KW - Hydrophobicity
KW - Photocatalytic degradation
KW - Porphyrin
KW - Star block copolymer
KW - Toxicity
UR - http://www.scopus.com/inward/record.url?scp=84873043643&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873043643&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2012.11.070
DO - 10.1016/j.cej.2012.11.070
M3 - Article
AN - SCOPUS:84873043643
VL - 215-216
SP - 921
EP - 928
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -