Melanin-embedded materials effectively remove hexavalent chromium (Cr VI ) from aqueous solution
Currently, it is recognized that water polluted with toxic heavy metal ions may cause serious effects on human health. Therefore, the development of new materials for effective removal of heavy metal ions from water is still a widely important area. Melanin is being considered as a potential materia...
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| Veröffentlicht in: | Environmental health and preventive medicine 2018-02, Vol.23 (1), p.9-11, Article 9 |
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| creator | Cuong, An Manh Le Na, Nguyen Thi Thang, Pham Nhat Diep, Trinh Ngoc Thuy, Ly Bich Thanh, Nguyen Lai Thang, Nguyen Dinh |
| description | Currently, it is recognized that water polluted with toxic heavy metal ions may cause serious effects on human health. Therefore, the development of new materials for effective removal of heavy metal ions from water is still a widely important area. Melanin is being considered as a potential material for removal of heavy metal from water.
In this study, we synthesized two melanin-embedded beads from two different melanin powder sources and named IMB (Isolated Melanin Bead originated from squid ink sac) and CMB (Commercial Melanin Bead originated from sesame seeds). These beads were of globular shape and 2-3 mm in diameter. We investigated and compared the sorption abilities of these two bead materials toward hexavalent-chromium (Cr
) in water. The isotherm sorption curves were established using Langmuir and Freundlich models in the optimized conditions of pH, sorption time, solid/liquid ratio, and initial concentration of Cr
. The FITR analysis was also carried out to show the differences in surface properties of these two beads.
The optimized conditions for isotherm sorption of Cr
on IMB/CMB were set at pH values of 2/2, sorption times of 90/300 min, and solid-liquid ratios of 10/20 mg/mL. The maximum sorption capacities calculated based on the Langmuir model were 19.60 and 6.24 for IMB and CMB, respectively. However, the adsorption kinetic of Cr
on the beads fitted the Freundlich model with R
values of 0.992 for IMB and 0.989 for CMB. The deduced Freundlich constant, 1/n, in the range of 0.2-0.8 indicated that these beads are good adsorption materials. In addition, structure analysis data revealed great differences in physical and chemical properties between IMB and CMB. Interestingly, FTIR analysis results showed strong signals of -OH (3295.35 cm
) and -C=O (1608.63 cm
) groups harboring on the IMB but not CMB. Moreover, loading of Cr
on the IMB caused a shift of broad peaks from 3295.35 cm
and 1608.63 cm
to 3354.21 cm
and 1597.06 cm
, respectively, due to -OH and -C=O stretching.
Taken together, our study suggests that IMB has great potential as a bead material for the elimination of Cr
from aqueous solutions and may be highly useful for water treatment applications. |
| doi_str_mv | 10.1186/s12199-018-0699-y |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_5824532</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2575271598</sourcerecordid><originalsourceid>FETCH-LOGICAL-c521t-4c89aa02b66944380586eee76c483370f801e577a92f7d4b300ccdb0cae9e8623</originalsourceid><addsrcrecordid>eNp9kU1P3DAQhi1UxMKWH8AFWeoFDgHb8ecFCa36gbSIS1v15jrOhA1KYrCTFfvv8XYpopeeZjR-59U7fhA6oeSCUi0vE2XUmIJQXRCZm80eOqQlVwVXVHz407OCKP1rho5SeiCECS7NAZoxkxVKm0P0-xY6N7RDAX0FdQ017t0IsXVdwtA04Md2Dd0GR-jDGvAKnt3adTCM2K9i6Nupx2eLiH_e4HPc5AF2TxOEKeEUumlsw_AR7TfZDI5f6xz9-PL5--Jbsbz7erO4XhZeMDoW3GvjHGGVlIbzUhOhJQAo6bkuS0UaTSgIpZxhjap5VRLifV0R78CAlqyco6ud7-NU9VD7HDG6zj7GtndxY4Nr7b8vQ7uy92FthWZclFuDT68GMeQb0mgfwhSHnNkyoQTLX2r0f1WEKC6Z0Tyr6E7lY0gpQvOWgxK7RWd36GxGZ7fo7CbvnL4_4G3jL6vyBf5vlbY</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2007462984</pqid></control><display><type>article</type><title>Melanin-embedded materials effectively remove hexavalent chromium (Cr VI ) from aqueous solution</title><source>J-STAGE Free</source><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>PubMed Central</source><source>Springer Nature OA Free Journals</source><creator>Cuong, An Manh ; Le Na, Nguyen Thi ; Thang, Pham Nhat ; Diep, Trinh Ngoc ; Thuy, Ly Bich ; Thanh, Nguyen Lai ; Thang, Nguyen Dinh</creator><creatorcontrib>Cuong, An Manh ; Le Na, Nguyen Thi ; Thang, Pham Nhat ; Diep, Trinh Ngoc ; Thuy, Ly Bich ; Thanh, Nguyen Lai ; Thang, Nguyen Dinh</creatorcontrib><description>Currently, it is recognized that water polluted with toxic heavy metal ions may cause serious effects on human health. Therefore, the development of new materials for effective removal of heavy metal ions from water is still a widely important area. Melanin is being considered as a potential material for removal of heavy metal from water.
In this study, we synthesized two melanin-embedded beads from two different melanin powder sources and named IMB (Isolated Melanin Bead originated from squid ink sac) and CMB (Commercial Melanin Bead originated from sesame seeds). These beads were of globular shape and 2-3 mm in diameter. We investigated and compared the sorption abilities of these two bead materials toward hexavalent-chromium (Cr
) in water. The isotherm sorption curves were established using Langmuir and Freundlich models in the optimized conditions of pH, sorption time, solid/liquid ratio, and initial concentration of Cr
. The FITR analysis was also carried out to show the differences in surface properties of these two beads.
The optimized conditions for isotherm sorption of Cr
on IMB/CMB were set at pH values of 2/2, sorption times of 90/300 min, and solid-liquid ratios of 10/20 mg/mL. The maximum sorption capacities calculated based on the Langmuir model were 19.60 and 6.24 for IMB and CMB, respectively. However, the adsorption kinetic of Cr
on the beads fitted the Freundlich model with R
values of 0.992 for IMB and 0.989 for CMB. The deduced Freundlich constant, 1/n, in the range of 0.2-0.8 indicated that these beads are good adsorption materials. In addition, structure analysis data revealed great differences in physical and chemical properties between IMB and CMB. Interestingly, FTIR analysis results showed strong signals of -OH (3295.35 cm
) and -C=O (1608.63 cm
) groups harboring on the IMB but not CMB. Moreover, loading of Cr
on the IMB caused a shift of broad peaks from 3295.35 cm
and 1608.63 cm
to 3354.21 cm
and 1597.06 cm
, respectively, due to -OH and -C=O stretching.
Taken together, our study suggests that IMB has great potential as a bead material for the elimination of Cr
from aqueous solutions and may be highly useful for water treatment applications.</description><identifier>ISSN: 1342-078X</identifier><identifier>EISSN: 1347-4715</identifier><identifier>DOI: 10.1186/s12199-018-0699-y</identifier><identifier>PMID: 29471789</identifier><language>eng</language><publisher>England: BioMed Central</publisher><subject>Adsorption ; Aqueous solutions ; Beads ; Chemical properties ; Chromium ; Data processing ; Efficiency ; Environmental health ; Equilibrium ; Experiments ; Heavy metals ; Hexavalent chromium ; Isotherms ; Melanin ; Metal ions ; pH effects ; Powder ; Seafood ; Seeds ; Sorption ; Structural analysis ; Surface properties ; Water pollution ; Water treatment</subject><ispartof>Environmental health and preventive medicine, 2018-02, Vol.23 (1), p.9-11, Article 9</ispartof><rights>Environmental Health and Preventive Medicine is a copyright of Springer, (2018). All Rights Reserved.</rights><rights>2018. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.</rights><rights>The Author(s). 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c521t-4c89aa02b66944380586eee76c483370f801e577a92f7d4b300ccdb0cae9e8623</citedby><cites>FETCH-LOGICAL-c521t-4c89aa02b66944380586eee76c483370f801e577a92f7d4b300ccdb0cae9e8623</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5824532/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5824532/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29471789$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cuong, An Manh</creatorcontrib><creatorcontrib>Le Na, Nguyen Thi</creatorcontrib><creatorcontrib>Thang, Pham Nhat</creatorcontrib><creatorcontrib>Diep, Trinh Ngoc</creatorcontrib><creatorcontrib>Thuy, Ly Bich</creatorcontrib><creatorcontrib>Thanh, Nguyen Lai</creatorcontrib><creatorcontrib>Thang, Nguyen Dinh</creatorcontrib><title>Melanin-embedded materials effectively remove hexavalent chromium (Cr VI ) from aqueous solution</title><title>Environmental health and preventive medicine</title><addtitle>Environ Health Prev Med</addtitle><description>Currently, it is recognized that water polluted with toxic heavy metal ions may cause serious effects on human health. Therefore, the development of new materials for effective removal of heavy metal ions from water is still a widely important area. Melanin is being considered as a potential material for removal of heavy metal from water.
In this study, we synthesized two melanin-embedded beads from two different melanin powder sources and named IMB (Isolated Melanin Bead originated from squid ink sac) and CMB (Commercial Melanin Bead originated from sesame seeds). These beads were of globular shape and 2-3 mm in diameter. We investigated and compared the sorption abilities of these two bead materials toward hexavalent-chromium (Cr
) in water. The isotherm sorption curves were established using Langmuir and Freundlich models in the optimized conditions of pH, sorption time, solid/liquid ratio, and initial concentration of Cr
. The FITR analysis was also carried out to show the differences in surface properties of these two beads.
The optimized conditions for isotherm sorption of Cr
on IMB/CMB were set at pH values of 2/2, sorption times of 90/300 min, and solid-liquid ratios of 10/20 mg/mL. The maximum sorption capacities calculated based on the Langmuir model were 19.60 and 6.24 for IMB and CMB, respectively. However, the adsorption kinetic of Cr
on the beads fitted the Freundlich model with R
values of 0.992 for IMB and 0.989 for CMB. The deduced Freundlich constant, 1/n, in the range of 0.2-0.8 indicated that these beads are good adsorption materials. In addition, structure analysis data revealed great differences in physical and chemical properties between IMB and CMB. Interestingly, FTIR analysis results showed strong signals of -OH (3295.35 cm
) and -C=O (1608.63 cm
) groups harboring on the IMB but not CMB. Moreover, loading of Cr
on the IMB caused a shift of broad peaks from 3295.35 cm
and 1608.63 cm
to 3354.21 cm
and 1597.06 cm
, respectively, due to -OH and -C=O stretching.
Taken together, our study suggests that IMB has great potential as a bead material for the elimination of Cr
from aqueous solutions and may be highly useful for water treatment applications.</description><subject>Adsorption</subject><subject>Aqueous solutions</subject><subject>Beads</subject><subject>Chemical properties</subject><subject>Chromium</subject><subject>Data processing</subject><subject>Efficiency</subject><subject>Environmental health</subject><subject>Equilibrium</subject><subject>Experiments</subject><subject>Heavy metals</subject><subject>Hexavalent chromium</subject><subject>Isotherms</subject><subject>Melanin</subject><subject>Metal ions</subject><subject>pH effects</subject><subject>Powder</subject><subject>Seafood</subject><subject>Seeds</subject><subject>Sorption</subject><subject>Structural analysis</subject><subject>Surface properties</subject><subject>Water pollution</subject><subject>Water treatment</subject><issn>1342-078X</issn><issn>1347-4715</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kU1P3DAQhi1UxMKWH8AFWeoFDgHb8ecFCa36gbSIS1v15jrOhA1KYrCTFfvv8XYpopeeZjR-59U7fhA6oeSCUi0vE2XUmIJQXRCZm80eOqQlVwVXVHz407OCKP1rho5SeiCECS7NAZoxkxVKm0P0-xY6N7RDAX0FdQ017t0IsXVdwtA04Md2Dd0GR-jDGvAKnt3adTCM2K9i6Nupx2eLiH_e4HPc5AF2TxOEKeEUumlsw_AR7TfZDI5f6xz9-PL5--Jbsbz7erO4XhZeMDoW3GvjHGGVlIbzUhOhJQAo6bkuS0UaTSgIpZxhjap5VRLifV0R78CAlqyco6ud7-NU9VD7HDG6zj7GtndxY4Nr7b8vQ7uy92FthWZclFuDT68GMeQb0mgfwhSHnNkyoQTLX2r0f1WEKC6Z0Tyr6E7lY0gpQvOWgxK7RWd36GxGZ7fo7CbvnL4_4G3jL6vyBf5vlbY</recordid><startdate>20180223</startdate><enddate>20180223</enddate><creator>Cuong, An Manh</creator><creator>Le Na, Nguyen Thi</creator><creator>Thang, Pham Nhat</creator><creator>Diep, Trinh Ngoc</creator><creator>Thuy, Ly Bich</creator><creator>Thanh, Nguyen Lai</creator><creator>Thang, Nguyen Dinh</creator><general>BioMed Central</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RV</scope><scope>7T2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PATMY</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PJZUB</scope><scope>PKEHL</scope><scope>PPXIY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>5PM</scope></search><sort><creationdate>20180223</creationdate><title>Melanin-embedded materials effectively remove hexavalent chromium (Cr VI ) from aqueous solution</title><author>Cuong, An Manh ; Le Na, Nguyen Thi ; Thang, Pham Nhat ; Diep, Trinh Ngoc ; Thuy, Ly Bich ; Thanh, Nguyen Lai ; Thang, Nguyen Dinh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c521t-4c89aa02b66944380586eee76c483370f801e577a92f7d4b300ccdb0cae9e8623</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adsorption</topic><topic>Aqueous solutions</topic><topic>Beads</topic><topic>Chemical properties</topic><topic>Chromium</topic><topic>Data processing</topic><topic>Efficiency</topic><topic>Environmental health</topic><topic>Equilibrium</topic><topic>Experiments</topic><topic>Heavy metals</topic><topic>Hexavalent chromium</topic><topic>Isotherms</topic><topic>Melanin</topic><topic>Metal ions</topic><topic>pH effects</topic><topic>Powder</topic><topic>Seafood</topic><topic>Seeds</topic><topic>Sorption</topic><topic>Structural analysis</topic><topic>Surface properties</topic><topic>Water pollution</topic><topic>Water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cuong, An Manh</creatorcontrib><creatorcontrib>Le Na, Nguyen Thi</creatorcontrib><creatorcontrib>Thang, Pham Nhat</creatorcontrib><creatorcontrib>Diep, Trinh Ngoc</creatorcontrib><creatorcontrib>Thuy, Ly Bich</creatorcontrib><creatorcontrib>Thanh, Nguyen Lai</creatorcontrib><creatorcontrib>Thang, Nguyen Dinh</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing & Allied Health Database</collection><collection>Health and Safety Science Abstracts (Full archive)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Nursing & Allied Health Premium</collection><collection>Environmental Science Database</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest Health & Medical Research Collection</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Health & Nursing</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Environmental health and preventive medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cuong, An Manh</au><au>Le Na, Nguyen Thi</au><au>Thang, Pham Nhat</au><au>Diep, Trinh Ngoc</au><au>Thuy, Ly Bich</au><au>Thanh, Nguyen Lai</au><au>Thang, Nguyen Dinh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Melanin-embedded materials effectively remove hexavalent chromium (Cr VI ) from aqueous solution</atitle><jtitle>Environmental health and preventive medicine</jtitle><addtitle>Environ Health Prev Med</addtitle><date>2018-02-23</date><risdate>2018</risdate><volume>23</volume><issue>1</issue><spage>9</spage><epage>11</epage><pages>9-11</pages><artnum>9</artnum><issn>1342-078X</issn><eissn>1347-4715</eissn><abstract>Currently, it is recognized that water polluted with toxic heavy metal ions may cause serious effects on human health. Therefore, the development of new materials for effective removal of heavy metal ions from water is still a widely important area. Melanin is being considered as a potential material for removal of heavy metal from water.
In this study, we synthesized two melanin-embedded beads from two different melanin powder sources and named IMB (Isolated Melanin Bead originated from squid ink sac) and CMB (Commercial Melanin Bead originated from sesame seeds). These beads were of globular shape and 2-3 mm in diameter. We investigated and compared the sorption abilities of these two bead materials toward hexavalent-chromium (Cr
) in water. The isotherm sorption curves were established using Langmuir and Freundlich models in the optimized conditions of pH, sorption time, solid/liquid ratio, and initial concentration of Cr
. The FITR analysis was also carried out to show the differences in surface properties of these two beads.
The optimized conditions for isotherm sorption of Cr
on IMB/CMB were set at pH values of 2/2, sorption times of 90/300 min, and solid-liquid ratios of 10/20 mg/mL. The maximum sorption capacities calculated based on the Langmuir model were 19.60 and 6.24 for IMB and CMB, respectively. However, the adsorption kinetic of Cr
on the beads fitted the Freundlich model with R
values of 0.992 for IMB and 0.989 for CMB. The deduced Freundlich constant, 1/n, in the range of 0.2-0.8 indicated that these beads are good adsorption materials. In addition, structure analysis data revealed great differences in physical and chemical properties between IMB and CMB. Interestingly, FTIR analysis results showed strong signals of -OH (3295.35 cm
) and -C=O (1608.63 cm
) groups harboring on the IMB but not CMB. Moreover, loading of Cr
on the IMB caused a shift of broad peaks from 3295.35 cm
and 1608.63 cm
to 3354.21 cm
and 1597.06 cm
, respectively, due to -OH and -C=O stretching.
Taken together, our study suggests that IMB has great potential as a bead material for the elimination of Cr
from aqueous solutions and may be highly useful for water treatment applications.</abstract><cop>England</cop><pub>BioMed Central</pub><pmid>29471789</pmid><doi>10.1186/s12199-018-0699-y</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| source | J-STAGE Free; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Springer Nature OA Free Journals |
| subjects | Adsorption Aqueous solutions Beads Chemical properties Chromium Data processing Efficiency Environmental health Equilibrium Experiments Heavy metals Hexavalent chromium Isotherms Melanin Metal ions pH effects Powder Seafood Seeds Sorption Structural analysis Surface properties Water pollution Water treatment |
| title | Melanin-embedded materials effectively remove hexavalent chromium (Cr VI ) from aqueous solution |
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