Synthesis of Dual-Responsive Alginate-Inspired Hydrocomposites for the Absorption of Blue Methylene
Dual-responsive hydrogel composites, hydrocomposites (HC), composed of magnetite particles and alginate, which undergo drastic changes in volume in response to pH and magnetic fields, were prepared and employed for the removal of methylene blue (MB) from the aqueous environment. The use of magnets a...
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| Veröffentlicht in: | Journal of polymers and the environment 2021-05, Vol.29 (5), p.1643-1650 |
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| creator | Costa, Pablo G. Lima-Tenório, Michele K. Tenório-Neto, Ernandes T. Galinari, Renata A. C. da Silva, Cleiser T. P. de Lima, Hugo H. C. Kupfer, Vicente L. Rinaldi, Andrelson W. Guilherme, Marcos R. Rubira, Adley F. |
| description | Dual-responsive hydrogel composites, hydrocomposites (HC), composed of magnetite particles and alginate, which undergo drastic changes in volume in response to pH and magnetic fields, were prepared and employed for the removal of methylene blue (MB) from the aqueous environment. The use of magnets allowed for the control of the MB absorption mechanism and the removal of HCs following their application in water, thereby preventing secondary contamination. The HC capacity for water absorption was found to be dependent on the amount of magnetite and could be altered with the application of a magnetic field. In a 25 mg/L MB solution at pH 6.3 and 8, 20 mg of HC removed 97.7% of MB. The presence of 1% magnetite (w/w) is sufficient for composites to be guided by magnetic stimuli, and the resulting material could be reused at least four times through a simple treatment process.
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| doi_str_mv | 10.1007/s10924-020-01988-1 |
| format | Article |
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Graphic Abstract</description><subject>Absorption</subject><subject>Alginates</subject><subject>Alginic acid</subject><subject>Aqueous environments</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Contamination</subject><subject>Environmental Chemistry</subject><subject>Environmental Engineering/Biotechnology</subject><subject>Hydrogels</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Magnetic fields</subject><subject>Magnetite</subject><subject>Magnets</subject><subject>Materials Science</subject><subject>Methylene blue</subject><subject>Original Paper</subject><subject>Particulate composites</subject><subject>pH effects</subject><subject>Polymer Sciences</subject><subject>Water absorption</subject><issn>1566-2543</issn><issn>1572-8919</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kMtOwzAQRS0EEqXwA6wssTaMncSxl6U8WgmExGNtpcm4TZXGwU6R8ve4BIkdq7mLe-5Ih5BLDtccIL8JHLRIGQhgwLVSjB-RCc9ywZTm-viQpWQiS5NTchbCFgB0BCekfBvafoOhDtRZercvGvaKoXNtqL-Qzpp13RY9smUbutpjRRdD5V3pdp0LdY-BWudp5OlsFZzv-tq1h53bZo_0GfvN0GCL5-TEFk3Ai987JR8P9-_zBXt6eVzOZ0-sTDLZs0RXRZUlJa6QV6lUq8oWqgKruZRaImRlLguwaAUIEWOqM5WL3ErIVeQgmZKrcbfz7nOPoTdbt_dtfGlExpOUpyrJY0uMrdK7EDxa0_l6V_jBcDAHmWaUaaJM8yPT8AglIxRiuV2j_5v-h_oGzxB4MQ</recordid><startdate>20210501</startdate><enddate>20210501</enddate><creator>Costa, Pablo G.</creator><creator>Lima-Tenório, Michele K.</creator><creator>Tenório-Neto, Ernandes T.</creator><creator>Galinari, Renata A. 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C. ; da Silva, Cleiser T. P. ; de Lima, Hugo H. 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C.</au><au>da Silva, Cleiser T. P.</au><au>de Lima, Hugo H. C.</au><au>Kupfer, Vicente L.</au><au>Rinaldi, Andrelson W.</au><au>Guilherme, Marcos R.</au><au>Rubira, Adley F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of Dual-Responsive Alginate-Inspired Hydrocomposites for the Absorption of Blue Methylene</atitle><jtitle>Journal of polymers and the environment</jtitle><stitle>J Polym Environ</stitle><date>2021-05-01</date><risdate>2021</risdate><volume>29</volume><issue>5</issue><spage>1643</spage><epage>1650</epage><pages>1643-1650</pages><issn>1566-2543</issn><eissn>1572-8919</eissn><abstract>Dual-responsive hydrogel composites, hydrocomposites (HC), composed of magnetite particles and alginate, which undergo drastic changes in volume in response to pH and magnetic fields, were prepared and employed for the removal of methylene blue (MB) from the aqueous environment. The use of magnets allowed for the control of the MB absorption mechanism and the removal of HCs following their application in water, thereby preventing secondary contamination. The HC capacity for water absorption was found to be dependent on the amount of magnetite and could be altered with the application of a magnetic field. In a 25 mg/L MB solution at pH 6.3 and 8, 20 mg of HC removed 97.7% of MB. The presence of 1% magnetite (w/w) is sufficient for composites to be guided by magnetic stimuli, and the resulting material could be reused at least four times through a simple treatment process.
Graphic Abstract</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10924-020-01988-1</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-4260-5660</orcidid></addata></record> |
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| ispartof | Journal of polymers and the environment, 2021-05, Vol.29 (5), p.1643-1650 |
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| subjects | Absorption Alginates Alginic acid Aqueous environments Chemistry Chemistry and Materials Science Contamination Environmental Chemistry Environmental Engineering/Biotechnology Hydrogels Industrial Chemistry/Chemical Engineering Magnetic fields Magnetite Magnets Materials Science Methylene blue Original Paper Particulate composites pH effects Polymer Sciences Water absorption |
| title | Synthesis of Dual-Responsive Alginate-Inspired Hydrocomposites for the Absorption of Blue Methylene |
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