Sustainable removal of Hg(II) by sulfur-modified pine-needle biochar
DC Field | Value | Language |
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dc.contributor.author | Jeon, Cheolho | - |
dc.contributor.author | Solis, Kurt Louis | - |
dc.contributor.author | An, Ha-Rim | - |
dc.contributor.author | Hong, Yongseok | - |
dc.contributor.author | Igalavithana, Avanthi Deshani | - |
dc.contributor.author | Ok, Yong Sik | - |
dc.date.accessioned | 2021-08-31T02:48:24Z | - |
dc.date.available | 2021-08-31T02:48:24Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-04-15 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/56618 | - |
dc.description.abstract | Sulfur-modified pine-needle biochar (BC-S) was produced for the removal of Hg(II) in aqueous media via postpyrolysis S stream exposure. Fourier-transform infrared spectroscopy, elemental analysis, and X-ray photoelectron spectroscopy confirmed the addition of S(0) groups on the surface of BC-S. Hg(II) adsorption on BC-S was best described by the Freundlich isotherm with a K-F of 21.0 mg L g(-1) and a pseudo-second-order adsorption kinetics model with a rate of 0.35 g mg(-1) min(-1). Hg(II) removal on BC-S was found to be an endothermic process that relied on C-Hg and S-Hg interactions rather than reduction by S(0) groups. The adsorption increased with increasing solution pH and decreased with increasing dissolved organic matter concentration, but was unaffected by increasing salt concentrations. BC-S showed a maximum of 3 % S leaching in aqueous media after 28-d exposure time, and exposure to aqueous media did not convert Hg(II) to elemental Hg. Overall, BC-S exhibited superior Hg(II) removal performance over unmodified BC, thus having potential applications in natural water and wastewater treatment with no significant threat of secondary pollution. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | AQUEOUS-SOLUTION | - |
dc.subject | MICROBIAL COMMUNITY | - |
dc.subject | GRAPHENE OXIDE | - |
dc.subject | MERCURY EMISSIONS | - |
dc.subject | ACTIVATED CARBON | - |
dc.subject | ADSORPTION | - |
dc.subject | WATER | - |
dc.subject | WASTE | - |
dc.subject | SOIL | - |
dc.subject | IMMOBILIZATION | - |
dc.title | Sustainable removal of Hg(II) by sulfur-modified pine-needle biochar | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hong, Yongseok | - |
dc.contributor.affiliatedAuthor | Ok, Yong Sik | - |
dc.identifier.doi | 10.1016/j.jhazmat.2020.122048 | - |
dc.identifier.scopusid | 2-s2.0-85077928985 | - |
dc.identifier.wosid | 000524462500108 | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.388 | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 388 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | MICROBIAL COMMUNITY | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | MERCURY EMISSIONS | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | WASTE | - |
dc.subject.keywordPlus | SOIL | - |
dc.subject.keywordPlus | IMMOBILIZATION | - |
dc.subject.keywordAuthor | Potentially toxic element | - |
dc.subject.keywordAuthor | Remediation | - |
dc.subject.keywordAuthor | Sulfur functionalization | - |
dc.subject.keywordAuthor | Wastewater | - |
dc.subject.keywordAuthor | Engineered biochar | - |
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