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Preparation of amino-functionalized CoFe 2 O 4 @SiO 2 magnetic nanocomposites for potential application in absorbing heavy metal ions
Amino-functionalized nanocomposites with a magnetic CoFe 2 O 4 core and an amorphous SiO 2 shell have been designed and synthesized. The core–shell structure was characterized by SEM, EDS, TEM, FTIR and XPS. CoFe 2 O 4 @SiO 2 –NH 2 with a high saturated magnetization (28.09 emu g −1 ) can be easily...
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| Published in: | RSC advances 2016, Vol.6 (76), p.72479-72486 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c76E-a13801ba87b3c3f6aca2155187c5f79bfe8160f8702281fcb216335aa0ebdd1c3 |
| container_end_page | 72486 |
| container_issue | 76 |
| container_start_page | 72479 |
| container_title | RSC advances |
| container_volume | 6 |
| creator | Ren, Chunrong Ding, Xingeng Fu, Huiqin Meng, Cheng Li, Wenqi Yang, Hui |
| description | Amino-functionalized nanocomposites with a magnetic CoFe
2
O
4
core and an amorphous SiO
2
shell have been designed and synthesized. The core–shell structure was characterized by SEM, EDS, TEM, FTIR and XPS. CoFe
2
O
4
@SiO
2
–NH
2
with a high saturated magnetization (28.09 emu g
−1
) can be easily separated under a moderate external magnetic field within one minute. In addition, the adsorption capacity of the CoFe
2
O
4
@SiO
2
–NH
2
for Cu(
ii
), Cd(
ii
) and Mn(
ii
) was 170.829, 144.948 and 110.803 mg g
−1
, respectively. The removal efficiency was increased from 12 to 85% with an increase in the pH from 4 to 6.5. The adsorbent can be recycled for at least four cycles with a feasible removal efficiency (85.41%). The adsorption process was fitted by pseudo-second-order kinetics and a Langmuir isotherm model. Based on the data of the present investigation, CoFe
2
O
4
@SiO
2
–NH
2
could find potential applications in heavy metal ion wastewater treatment. |
| doi_str_mv | 10.1039/C6RA13304E |
| format | article |
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2
O
4
core and an amorphous SiO
2
shell have been designed and synthesized. The core–shell structure was characterized by SEM, EDS, TEM, FTIR and XPS. CoFe
2
O
4
@SiO
2
–NH
2
with a high saturated magnetization (28.09 emu g
−1
) can be easily separated under a moderate external magnetic field within one minute. In addition, the adsorption capacity of the CoFe
2
O
4
@SiO
2
–NH
2
for Cu(
ii
), Cd(
ii
) and Mn(
ii
) was 170.829, 144.948 and 110.803 mg g
−1
, respectively. The removal efficiency was increased from 12 to 85% with an increase in the pH from 4 to 6.5. The adsorbent can be recycled for at least four cycles with a feasible removal efficiency (85.41%). The adsorption process was fitted by pseudo-second-order kinetics and a Langmuir isotherm model. Based on the data of the present investigation, CoFe
2
O
4
@SiO
2
–NH
2
could find potential applications in heavy metal ion wastewater treatment.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/C6RA13304E</identifier><language>eng</language><ispartof>RSC advances, 2016, Vol.6 (76), p.72479-72486</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c76E-a13801ba87b3c3f6aca2155187c5f79bfe8160f8702281fcb216335aa0ebdd1c3</citedby><cites>FETCH-LOGICAL-c76E-a13801ba87b3c3f6aca2155187c5f79bfe8160f8702281fcb216335aa0ebdd1c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>Ren, Chunrong</creatorcontrib><creatorcontrib>Ding, Xingeng</creatorcontrib><creatorcontrib>Fu, Huiqin</creatorcontrib><creatorcontrib>Meng, Cheng</creatorcontrib><creatorcontrib>Li, Wenqi</creatorcontrib><creatorcontrib>Yang, Hui</creatorcontrib><title>Preparation of amino-functionalized CoFe 2 O 4 @SiO 2 magnetic nanocomposites for potential application in absorbing heavy metal ions</title><title>RSC advances</title><description>Amino-functionalized nanocomposites with a magnetic CoFe
2
O
4
core and an amorphous SiO
2
shell have been designed and synthesized. The core–shell structure was characterized by SEM, EDS, TEM, FTIR and XPS. CoFe
2
O
4
@SiO
2
–NH
2
with a high saturated magnetization (28.09 emu g
−1
) can be easily separated under a moderate external magnetic field within one minute. In addition, the adsorption capacity of the CoFe
2
O
4
@SiO
2
–NH
2
for Cu(
ii
), Cd(
ii
) and Mn(
ii
) was 170.829, 144.948 and 110.803 mg g
−1
, respectively. The removal efficiency was increased from 12 to 85% with an increase in the pH from 4 to 6.5. The adsorbent can be recycled for at least four cycles with a feasible removal efficiency (85.41%). The adsorption process was fitted by pseudo-second-order kinetics and a Langmuir isotherm model. Based on the data of the present investigation, CoFe
2
O
4
@SiO
2
–NH
2
could find potential applications in heavy metal ion wastewater treatment.</description><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpNUM1KAzEYDKJgqb34BN9ZWM1PN7u9WZatCoWK9r58SZMa2U2WZBXq3fd2SwWdywwzwxyGkGtGbxkVi7tKviyZEHRen5EJp3OZcSoX5__0JZml9E5HyJxxySbk-zmaHiMOLngIFrBzPmT2w-ujg637MjuowsoAhw3M4f7VbUbZ4d6bwWnw6IMOXR-SG0wCGyL0YTB-cNgC9n3r9GnbeUCVQlTO7-HN4OcBOjOMpTFMV-TCYpvM7JenZLuqt9Vjtt48PFXLdaYLWWfIREmZwrJQQgsrUSNnec7KQue2WChrSiapLQvKecmsVpxJIXJEatRux7SYkpvTrI4hpWhs00fXYTw0jDbHC5u_C8UPLCZk6A</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Ren, Chunrong</creator><creator>Ding, Xingeng</creator><creator>Fu, Huiqin</creator><creator>Meng, Cheng</creator><creator>Li, Wenqi</creator><creator>Yang, Hui</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2016</creationdate><title>Preparation of amino-functionalized CoFe 2 O 4 @SiO 2 magnetic nanocomposites for potential application in absorbing heavy metal ions</title><author>Ren, Chunrong ; Ding, Xingeng ; Fu, Huiqin ; Meng, Cheng ; Li, Wenqi ; Yang, Hui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c76E-a13801ba87b3c3f6aca2155187c5f79bfe8160f8702281fcb216335aa0ebdd1c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ren, Chunrong</creatorcontrib><creatorcontrib>Ding, Xingeng</creatorcontrib><creatorcontrib>Fu, Huiqin</creatorcontrib><creatorcontrib>Meng, Cheng</creatorcontrib><creatorcontrib>Li, Wenqi</creatorcontrib><creatorcontrib>Yang, Hui</creatorcontrib><collection>CrossRef</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ren, Chunrong</au><au>Ding, Xingeng</au><au>Fu, Huiqin</au><au>Meng, Cheng</au><au>Li, Wenqi</au><au>Yang, Hui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of amino-functionalized CoFe 2 O 4 @SiO 2 magnetic nanocomposites for potential application in absorbing heavy metal ions</atitle><jtitle>RSC advances</jtitle><date>2016</date><risdate>2016</risdate><volume>6</volume><issue>76</issue><spage>72479</spage><epage>72486</epage><pages>72479-72486</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>Amino-functionalized nanocomposites with a magnetic CoFe
2
O
4
core and an amorphous SiO
2
shell have been designed and synthesized. The core–shell structure was characterized by SEM, EDS, TEM, FTIR and XPS. CoFe
2
O
4
@SiO
2
–NH
2
with a high saturated magnetization (28.09 emu g
−1
) can be easily separated under a moderate external magnetic field within one minute. In addition, the adsorption capacity of the CoFe
2
O
4
@SiO
2
–NH
2
for Cu(
ii
), Cd(
ii
) and Mn(
ii
) was 170.829, 144.948 and 110.803 mg g
−1
, respectively. The removal efficiency was increased from 12 to 85% with an increase in the pH from 4 to 6.5. The adsorbent can be recycled for at least four cycles with a feasible removal efficiency (85.41%). The adsorption process was fitted by pseudo-second-order kinetics and a Langmuir isotherm model. Based on the data of the present investigation, CoFe
2
O
4
@SiO
2
–NH
2
could find potential applications in heavy metal ion wastewater treatment.</abstract><doi>10.1039/C6RA13304E</doi><tpages>8</tpages></addata></record> |
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| language | eng |
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| source | Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list) |
| title | Preparation of amino-functionalized CoFe 2 O 4 @SiO 2 magnetic nanocomposites for potential application in absorbing heavy metal ions |
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