Accelerated redox reaction between chromate and phenolic
pollutants during freezing

J 2017

Accelerated redox reaction between chromate and phenolic pollutants during freezing

JU, Jinjung, Jaesung KIM, Ľubica VETRÁKOVÁ, Jiwon SEO, Dominik HEGER et. al.

Basic information

Original name

Accelerated redox reaction between chromate and phenolic pollutants during freezing

Authors

JU, Jinjung (410 Republic of Korea), Jaesung KIM (410 Republic of Korea), Ľubica VETRÁKOVÁ (703 Slovakia, belonging to the institution), Jiwon SEO (410 Republic of Korea), Dominik HEGER (203 Czech Republic, guarantor, belonging to the institution), Changha LEE (410 Republic of Korea), Ho-Il YOON (410 Republic of Korea), Kitae KIM (410 Republic of Korea) and Jungwon KIM (410 Republic of Korea)

Edition

Journal of Hazardous Materials, Amsterdam, Elsevier Science BV. 2017, 0304-3894

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

20100 2.1 Civil engineering

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 6.434

RIV identification code

RIV/00216224:14310/17:00100009

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.jhazmat.2017.01.031

UT WoS

000396950700037

Keywords in English

Ice; Freeze concentration effect; Redox reaction; Chromate; Phenolic pollutants

Abstract

V originále

The redox reaction between 4-chlorophenol (4-CP) and chromate (Cr(VI)) (i.e., the simultaneous oxidation of 4-CP by Cr(VI) and reduction of Cr(VI) by 4-CP) in ice (i.e., at 20 degrees C) was compared with the corresponding reaction in water (i.e., at 25 degrees C). The redox conversion of 4-CP/Cr(VI), which was negligible in water, was significantly accelerated in ice. This accelerated redox conversion of 4-CP/Cr(VI) in ice is ascribed to the freeze concentration effect occurring during freezing, which excludes solutes (i.e., 4-CP and Cr(VI)) and protons from the ice crystals and subsequently concentrates them in the liquid brine. The concentrations of Cr(VI) and protons in the liquid brine were confirmed by measuring the optical image and the UV-vis absorption spectra of cresol red (CR) as a pH indicator of frozen solution. The redox conversion of 4-CP/Cr(VI) was observed in water when the concentrations of 4-CP/protons or Cr(VI)/protons increased by 100/1000-fold. These results corroborate the freeze concentration effect as the reason for the accelerated redox conversion of 4-CP/Cr(VI) in ice. The redox conversion of various phenolic pollutants/Cr(VI) and 4-CP/Cr(VI) in real wastewater was successfully achieved in ice, which verifies the environmental relevance and importance of freezing-accelerated redox conversion of phenolic pollutants/Cr(VI) in cold regions.

Links

LM2011028, research and development project

Name: RECETOX ? Národní infrastruktura pro výzkum toxických látek v prostředí

Investor: Ministry of Education, Youth and Sports of the CR

LO1214, research and development project

Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

JU, Jinjung, Jaesung KIM, Ľubica VETRÁKOVÁ, Jiwon SEO, Dominik HEGER, Changha LEE, Ho-Il YOON, Kitae KIM and Jungwon KIM. Accelerated redox reaction between chromate and phenolic pollutants during freezing. Journal of Hazardous Materials. Amsterdam: Elsevier Science BV., 2017, vol. 329, May, p. 330-338. ISSN 0304-3894. Available from: https://dx.doi.org/10.1016/j.jhazmat.2017.01.031.

@article{1408055,
   author = {Ju, Jinjung and Kim, Jaesung and Vetráková, Ľubica and Seo, Jiwon and Heger, Dominik and Lee, Changha and Yoon, HoandIl and Kim, Kitae and Kim, Jungwon},
   article_location = {Amsterdam},
   article_number = {May},
   doi = {http://dx.doi.org/10.1016/j.jhazmat.2017.01.031},
   keywords = {Ice; Freeze concentration effect; Redox reaction; Chromate; Phenolic pollutants},
   language = {eng},
   issn = {0304-3894},
   journal = {Journal of Hazardous Materials},
   title = {Accelerated redox reaction between chromate and phenolic pollutants during freezing},
   url = {https://www.sciencedirect.com/science/article/pii/S0304389417300432?via%3Dihub},
   volume = {329},
   year = {2017}
}

TY  - JOUR
ID  - 1408055
AU  - Ju, Jinjung - Kim, Jaesung - Vetráková, Ľubica - Seo, Jiwon - Heger, Dominik - Lee, Changha - Yoon, Ho-Il - Kim, Kitae - Kim, Jungwon
PY  - 2017
TI  - Accelerated redox reaction between chromate and phenolic pollutants during freezing
JF  - Journal of Hazardous Materials
VL  - 329
IS  - May
SP  - 330-338
EP  - 330-338
PB  - Elsevier Science BV.
SN  - 03043894
KW  - Ice
KW  - Freeze concentration effect
KW  - Redox reaction
KW  - Chromate
KW  - Phenolic pollutants
UR  - https://www.sciencedirect.com/science/article/pii/S0304389417300432?via%3Dihub
L2  - https://www.sciencedirect.com/science/article/pii/S0304389417300432?via%3Dihub
N2  - The redox reaction between 4-chlorophenol (4-CP) and chromate (Cr(VI)) (i.e., the simultaneous oxidation of 4-CP by Cr(VI) and reduction of Cr(VI) by 4-CP) in ice (i.e., at 20 degrees C) was compared with the corresponding reaction in water (i.e., at 25 degrees C). The redox conversion of 4-CP/Cr(VI), which was negligible in water, was significantly accelerated in ice. This accelerated redox conversion of 4-CP/Cr(VI) in ice is ascribed to the freeze concentration effect occurring during freezing, which excludes solutes (i.e., 4-CP and Cr(VI)) and protons from the ice crystals and subsequently concentrates them in the liquid brine. The concentrations of Cr(VI) and protons in the liquid brine were confirmed by measuring the optical image and the UV-vis absorption spectra of cresol red (CR) as a pH indicator of frozen solution. The redox conversion of 4-CP/Cr(VI) was observed in water when the concentrations of 4-CP/protons or Cr(VI)/protons increased by 100/1000-fold. These results corroborate the freeze concentration effect as the reason for the accelerated redox conversion of 4-CP/Cr(VI) in ice. The redox conversion of various phenolic pollutants/Cr(VI) and 4-CP/Cr(VI) in real wastewater was successfully achieved in ice, which verifies the environmental relevance and importance of freezing-accelerated redox conversion of phenolic pollutants/Cr(VI) in cold regions.
ER  -

JU, Jinjung, Jaesung KIM, Ľubica VETRÁKOVÁ, Jiwon SEO, Dominik HEGER, Changha LEE, Ho-Il YOON, Kitae KIM and Jungwon KIM. Accelerated redox reaction between chromate and phenolic pollutants during freezing. \textit{Journal of Hazardous Materials}. Amsterdam: Elsevier Science BV., 2017, vol.~329, May, p.~330-338. ISSN~0304-3894. Available from: https://dx.doi.org/10.1016/j.jhazmat.2017.01.031.

Detailed Information on Publication Record