Elimination of Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution.
Identifieur interne : 000434 ( Main/Exploration ); précédent : 000433; suivant : 000435Elimination of Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution.
Auteurs : Yabo Du [République populaire de Chine] ; Yeqian Wen [République populaire de Chine] ; Hongxian Fan [République populaire de Chine] ; Jian Qi [République populaire de Chine] ; Songmei Zhang [République populaire de Chine] ; Gang Li [République populaire de Chine]Source :
- Environmental science and pollution research international [ 1614-7499 ] ; 2020.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical : Chromium, Lignin, Sulfuric Acids.
Abstract
In this paper, we proposed a novel method to eliminate nocuous Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution. In this electrochemical process, self-made Ti/SnO2-Sb anode and graphite cathode were applied, and the oxidative degradation of lignin proceeded simultaneously with the reduction of Cr(VI) in one pot. The influences of pivotal factors on electrocatalytic redox efficiency were investigated, such as chromium slag concentration, lignin concentration, current density, sulfuric acid concentration, and reaction time. The results showed that the elimination rate of Cr(VI) in chromium slag was 97.16 ± 1.13% and the total yield of lignin degradation products reached 93.78 g/kg lignin under the optimal conditions. X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDS), and UV-visible spectrophotometer studies confirmed that most of the Cr(VI) ions were reduced to Cr(III) ions with the aid of lignin, and a small amount of Cr(VI) ions were adsorbed by lignin residue. Importantly, this method provides a typical example of "waste control by waste", which is treating waste chromium slag with waste lignin that can be an effective way to eliminate Cr(VI).
DOI: 10.1007/s11356-020-09289-9
PubMed: 32436097
Affiliations:
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sort="Wen, Yeqian" uniqKey="Wen Y" first="Yeqian" last="Wen">Yeqian Wen</name><affiliation wicri:level="1"><nlm:affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China. wenyq@hebut.edu.cn.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130</wicri:regionArea><wicri:noRegion>300130</wicri:noRegion></affiliation></author><author><name sortKey="Fan, Hongxian" sort="Fan, Hongxian" uniqKey="Fan H" first="Hongxian" last="Fan">Hongxian Fan</name><affiliation wicri:level="1"><nlm:affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130</wicri:regionArea><wicri:noRegion>300130</wicri:noRegion></affiliation></author><author><name sortKey="Qi, Jian" sort="Qi, Jian" uniqKey="Qi J" first="Jian" last="Qi">Jian Qi</name><affiliation wicri:level="1"><nlm:affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130</wicri:regionArea><wicri:noRegion>300130</wicri:noRegion></affiliation></author><author><name sortKey="Zhang, Songmei" sort="Zhang, Songmei" uniqKey="Zhang S" first="Songmei" last="Zhang">Songmei Zhang</name><affiliation wicri:level="1"><nlm:affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</nlm:affiliation><country xml:lang="fr">République 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type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chromium (MeSH)</term><term>Lignin (MeSH)</term><term>Sulfuric Acids (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acides sulfuriques (MeSH)</term><term>Chrome (MeSH)</term><term>Lignine (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Chromium</term><term>Lignin</term><term>Sulfuric Acids</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Acides sulfuriques</term><term>Chrome</term><term>Lignine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this paper, we proposed a novel method to eliminate nocuous Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution. In this electrochemical process, self-made Ti/SnO<sub>2</sub>-Sb anode and graphite cathode were applied, and the oxidative degradation of lignin proceeded simultaneously with the reduction of Cr(VI) in one pot. The influences of pivotal factors on electrocatalytic redox efficiency were investigated, such as chromium slag concentration, lignin concentration, current density, sulfuric acid concentration, and reaction time. The results showed that the elimination rate of Cr(VI) in chromium slag was 97.16 ± 1.13% and the total yield of lignin degradation products reached 93.78 g/kg lignin under the optimal conditions. X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDS), and UV-visible spectrophotometer studies confirmed that most of the Cr(VI) ions were reduced to Cr(III) ions with the aid of lignin, and a small amount of Cr(VI) ions were adsorbed by lignin residue. Importantly, this method provides a typical example of "waste control by waste", which is treating waste chromium slag with waste lignin that can be an effective way to eliminate Cr(VI).</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Automated" Owner="NLM"><PMID Version="1">32436097</PMID><DateCompleted><Year>2020</Year><Month>07</Month><Day>27</Day></DateCompleted><DateRevised><Year>2020</Year><Month>07</Month><Day>27</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1614-7499</ISSN><JournalIssue CitedMedium="Internet"><Volume>27</Volume><Issue>23</Issue><PubDate><Year>2020</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Environmental science and pollution research international</Title><ISOAbbreviation>Environ Sci Pollut Res Int</ISOAbbreviation></Journal><ArticleTitle>Elimination of Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution.</ArticleTitle><Pagination><MedlinePgn>29441-29450</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s11356-020-09289-9</ELocationID><Abstract><AbstractText>In this paper, we proposed a novel method to eliminate nocuous Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution. In this electrochemical process, self-made Ti/SnO<sub>2</sub>-Sb anode and graphite cathode were applied, and the oxidative degradation of lignin proceeded simultaneously with the reduction of Cr(VI) in one pot. The influences of pivotal factors on electrocatalytic redox efficiency were investigated, such as chromium slag concentration, lignin concentration, current density, sulfuric acid concentration, and reaction time. The results showed that the elimination rate of Cr(VI) in chromium slag was 97.16 ± 1.13% and the total yield of lignin degradation products reached 93.78 g/kg lignin under the optimal conditions. X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDS), and UV-visible spectrophotometer studies confirmed that most of the Cr(VI) ions were reduced to Cr(III) ions with the aid of lignin, and a small amount of Cr(VI) ions were adsorbed by lignin residue. Importantly, this method provides a typical example of "waste control by waste", which is treating waste chromium slag with waste lignin that can be an effective way to eliminate Cr(VI).</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Du</LastName><ForeName>Yabo</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wen</LastName><ForeName>Yeqian</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China. wenyq@hebut.edu.cn.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fan</LastName><ForeName>Hongxian</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Qi</LastName><ForeName>Jian</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Zhang</LastName><ForeName>Songmei</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Gang</ForeName><Initials>G</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-8352-3290</Identifier><AffiliationInfo><Affiliation>School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China. ligang@hebut.edu.cn.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>21576067</GrantID><Agency>National Natural Science Foundation of China (CN)</Agency><Country></Country></Grant><Grant><GrantID>21606069</GrantID><Agency>National Natural Science Foundation of China</Agency><Country></Country></Grant><Grant><GrantID>B2017202187</GrantID><Agency>Natural Science Foundation of Hebei Province</Agency><Country></Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>05</Month><Day>21</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Environ Sci Pollut Res Int</MedlineTA><NlmUniqueID>9441769</NlmUniqueID><ISSNLinking>0944-1344</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D013464">Sulfuric Acids</NameOfSubstance></Chemical><Chemical><RegistryNumber>0R0008Q3JB</RegistryNumber><NameOfSubstance UI="D002857">Chromium</NameOfSubstance></Chemical><Chemical><RegistryNumber>18540-29-9</RegistryNumber><NameOfSubstance UI="C074702">chromium hexavalent ion</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical><Chemical><RegistryNumber>O40UQP6WCF</RegistryNumber><NameOfSubstance UI="C033158">sulfuric acid</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002857" MajorTopicYN="Y">Chromium</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" 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Jian" sort="Qi, Jian" uniqKey="Qi J" first="Jian" last="Qi">Jian Qi</name><name sortKey="Wen, Yeqian" sort="Wen, Yeqian" uniqKey="Wen Y" first="Yeqian" last="Wen">Yeqian Wen</name><name sortKey="Zhang, Songmei" sort="Zhang, Songmei" uniqKey="Zhang S" first="Songmei" last="Zhang">Songmei Zhang</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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