Hydrothermal synthesis of montmorillonite/hydrochar nanocomposites and application for 17β-estradiol and 17α-ethynylestradiol removal
With a view to reducing estrogens pollution in aqueous environments, montmorillonite/hydrochar (MMT/HC) with or without modification by KOH via hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). The characterizations of MMT/HC indicated...
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| Veröffentlicht in: | RSC advances 2018-01, Vol.8 (8), p.4273-4283 |
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| creator | Tian, Si-rong Liu, Yun-guo Liu, Shao-bo Zeng, Guang-ming Jiang, Lu-hua Tan, Xiao-fei Huang, Xi-xian Yin, Zhi-hong Liu, Ni Li, Jiang |
| description | With a view to reducing estrogens pollution in aqueous environments, montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). The characterizations of MMT/HC indicated that MMT had been successfully attached onto HC surface, which could cause an improvement in the stability of the clay nanoparticles. MMT/HC with 1% KOH (MMT/HC-K1) exhibited excellent adsorption ability (E2:
Q
m
= 138 mg g
−1
, EE2:
Q
m
= 69 mg g
−1
) compared to those of other adsorbents; approximately 2-fold higher than that of HC. Moreover, the adsorption capacity maintained a high level over a wide pH range (2-8). The pseudo-second-order model and Freundlich model exhibited prior fitting performance for adsorption of E2 and EE2. The regenerated MMT/HC-K1 retained over 80% of its initial capacity after four cycles. The adsorption mechanism on MMT/HC-K1 could be explained by hydrophobicity, π-π bond, electrostatic interaction and H-bonding interaction. Overall, MMT/HC-K1 synthesis from two low-cost materials, could be considered as a competitive adsorbent for estrogens removal from aqueous environment, considering its high adsorption capacity and regeneration ability.
Montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). |
| doi_str_mv | 10.1039/c7ra12038a |
| format | Article |
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via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). The characterizations of MMT/HC indicated that MMT had been successfully attached onto HC surface, which could cause an improvement in the stability of the clay nanoparticles. MMT/HC with 1% KOH (MMT/HC-K1) exhibited excellent adsorption ability (E2:
Q
m
= 138 mg g
−1
, EE2:
Q
m
= 69 mg g
−1
) compared to those of other adsorbents; approximately 2-fold higher than that of HC. Moreover, the adsorption capacity maintained a high level over a wide pH range (2-8). The pseudo-second-order model and Freundlich model exhibited prior fitting performance for adsorption of E2 and EE2. The regenerated MMT/HC-K1 retained over 80% of its initial capacity after four cycles. The adsorption mechanism on MMT/HC-K1 could be explained by hydrophobicity, π-π bond, electrostatic interaction and H-bonding interaction. Overall, MMT/HC-K1 synthesis from two low-cost materials, could be considered as a competitive adsorbent for estrogens removal from aqueous environment, considering its high adsorption capacity and regeneration ability.
Montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2).</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c7ra12038a</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Adsorbents ; Adsorption ; Aqueous environments ; Carbonization ; Competitive materials ; Estrogens ; Hydrophobicity ; Hydrothermal crystal growth ; Montmorillonite ; Nanocomposites ; Regeneration ; Sex hormones ; Synthesis</subject><ispartof>RSC advances, 2018-01, Vol.8 (8), p.4273-4283</ispartof><rights>Copyright Royal Society of Chemistry 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-60aac1ea4c762fee11b202d2e34a100d2081975bd740ba408d087b880d4e68933</citedby><cites>FETCH-LOGICAL-c343t-60aac1ea4c762fee11b202d2e34a100d2081975bd740ba408d087b880d4e68933</cites><orcidid>0000-0003-0691-755X ; 0000-0001-6496-8123</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,27901,27902</link.rule.ids></links><search><creatorcontrib>Tian, Si-rong</creatorcontrib><creatorcontrib>Liu, Yun-guo</creatorcontrib><creatorcontrib>Liu, Shao-bo</creatorcontrib><creatorcontrib>Zeng, Guang-ming</creatorcontrib><creatorcontrib>Jiang, Lu-hua</creatorcontrib><creatorcontrib>Tan, Xiao-fei</creatorcontrib><creatorcontrib>Huang, Xi-xian</creatorcontrib><creatorcontrib>Yin, Zhi-hong</creatorcontrib><creatorcontrib>Liu, Ni</creatorcontrib><creatorcontrib>Li, Jiang</creatorcontrib><title>Hydrothermal synthesis of montmorillonite/hydrochar nanocomposites and application for 17β-estradiol and 17α-ethynylestradiol removal</title><title>RSC advances</title><description>With a view to reducing estrogens pollution in aqueous environments, montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). The characterizations of MMT/HC indicated that MMT had been successfully attached onto HC surface, which could cause an improvement in the stability of the clay nanoparticles. MMT/HC with 1% KOH (MMT/HC-K1) exhibited excellent adsorption ability (E2:
Q
m
= 138 mg g
−1
, EE2:
Q
m
= 69 mg g
−1
) compared to those of other adsorbents; approximately 2-fold higher than that of HC. Moreover, the adsorption capacity maintained a high level over a wide pH range (2-8). The pseudo-second-order model and Freundlich model exhibited prior fitting performance for adsorption of E2 and EE2. The regenerated MMT/HC-K1 retained over 80% of its initial capacity after four cycles. The adsorption mechanism on MMT/HC-K1 could be explained by hydrophobicity, π-π bond, electrostatic interaction and H-bonding interaction. Overall, MMT/HC-K1 synthesis from two low-cost materials, could be considered as a competitive adsorbent for estrogens removal from aqueous environment, considering its high adsorption capacity and regeneration ability.
Montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2).</description><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Aqueous environments</subject><subject>Carbonization</subject><subject>Competitive materials</subject><subject>Estrogens</subject><subject>Hydrophobicity</subject><subject>Hydrothermal crystal growth</subject><subject>Montmorillonite</subject><subject>Nanocomposites</subject><subject>Regeneration</subject><subject>Sex hormones</subject><subject>Synthesis</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp90VFLwzAQAOAiCo65F9-Fim9C3SXt0vRxDHXCQBB9LtckpR1tUpNO6C_w9-gP8TeZbeJ8Mi857j5yxyUIzgncEIizqUgtEgoxx6NgRCFhEQWWHf-JT4OJc2vwh80IZWQUvC8HaU1fKdtiE7pB-9DVLjRl2Brdt8bWTWN03atptZWiQhtq1EaYtjPO512IWobYdU0tsK-NDktjQ5J-fUbK9RZlbZod8amPSPXVoIfmULGqNW_YnAUnJTZOTX7ucfByd_u8WEarx_uHxXwViTiJ-4gBoiAKE5EyWipFSEGBSqriBAmApMBJls4KmSZQYAJcAk8LzkEmivEsjsfB1f7dzprXjR8jX5uN1b5lToEA54wB8ep6r4Q1zllV5p2tW7RDTiDf7jpfpE_z3a7nHl_usXXi1x3-Iu9k6c3Ffyb-Blylir8</recordid><startdate>20180101</startdate><enddate>20180101</enddate><creator>Tian, Si-rong</creator><creator>Liu, Yun-guo</creator><creator>Liu, Shao-bo</creator><creator>Zeng, Guang-ming</creator><creator>Jiang, Lu-hua</creator><creator>Tan, Xiao-fei</creator><creator>Huang, Xi-xian</creator><creator>Yin, Zhi-hong</creator><creator>Liu, Ni</creator><creator>Li, Jiang</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0003-0691-755X</orcidid><orcidid>https://orcid.org/0000-0001-6496-8123</orcidid></search><sort><creationdate>20180101</creationdate><title>Hydrothermal synthesis of montmorillonite/hydrochar nanocomposites and application for 17β-estradiol and 17α-ethynylestradiol removal</title><author>Tian, Si-rong ; Liu, Yun-guo ; Liu, Shao-bo ; Zeng, Guang-ming ; Jiang, Lu-hua ; Tan, Xiao-fei ; Huang, Xi-xian ; Yin, Zhi-hong ; Liu, Ni ; Li, Jiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-60aac1ea4c762fee11b202d2e34a100d2081975bd740ba408d087b880d4e68933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adsorbents</topic><topic>Adsorption</topic><topic>Aqueous environments</topic><topic>Carbonization</topic><topic>Competitive materials</topic><topic>Estrogens</topic><topic>Hydrophobicity</topic><topic>Hydrothermal crystal growth</topic><topic>Montmorillonite</topic><topic>Nanocomposites</topic><topic>Regeneration</topic><topic>Sex hormones</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tian, Si-rong</creatorcontrib><creatorcontrib>Liu, Yun-guo</creatorcontrib><creatorcontrib>Liu, Shao-bo</creatorcontrib><creatorcontrib>Zeng, Guang-ming</creatorcontrib><creatorcontrib>Jiang, Lu-hua</creatorcontrib><creatorcontrib>Tan, Xiao-fei</creatorcontrib><creatorcontrib>Huang, Xi-xian</creatorcontrib><creatorcontrib>Yin, Zhi-hong</creatorcontrib><creatorcontrib>Liu, Ni</creatorcontrib><creatorcontrib>Li, Jiang</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tian, Si-rong</au><au>Liu, Yun-guo</au><au>Liu, Shao-bo</au><au>Zeng, Guang-ming</au><au>Jiang, Lu-hua</au><au>Tan, Xiao-fei</au><au>Huang, Xi-xian</au><au>Yin, Zhi-hong</au><au>Liu, Ni</au><au>Li, Jiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydrothermal synthesis of montmorillonite/hydrochar nanocomposites and application for 17β-estradiol and 17α-ethynylestradiol removal</atitle><jtitle>RSC advances</jtitle><date>2018-01-01</date><risdate>2018</risdate><volume>8</volume><issue>8</issue><spage>4273</spage><epage>4283</epage><pages>4273-4283</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>With a view to reducing estrogens pollution in aqueous environments, montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2). The characterizations of MMT/HC indicated that MMT had been successfully attached onto HC surface, which could cause an improvement in the stability of the clay nanoparticles. MMT/HC with 1% KOH (MMT/HC-K1) exhibited excellent adsorption ability (E2:
Q
m
= 138 mg g
−1
, EE2:
Q
m
= 69 mg g
−1
) compared to those of other adsorbents; approximately 2-fold higher than that of HC. Moreover, the adsorption capacity maintained a high level over a wide pH range (2-8). The pseudo-second-order model and Freundlich model exhibited prior fitting performance for adsorption of E2 and EE2. The regenerated MMT/HC-K1 retained over 80% of its initial capacity after four cycles. The adsorption mechanism on MMT/HC-K1 could be explained by hydrophobicity, π-π bond, electrostatic interaction and H-bonding interaction. Overall, MMT/HC-K1 synthesis from two low-cost materials, could be considered as a competitive adsorbent for estrogens removal from aqueous environment, considering its high adsorption capacity and regeneration ability.
Montmorillonite/hydrochar (MMT/HC) with or without modification by KOH
via
hydrothermal carbonization process (HTC) were applied to remove 17β-estradiol (E2) and 17α-ethynylestradiol (EE2).</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/c7ra12038a</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-0691-755X</orcidid><orcidid>https://orcid.org/0000-0001-6496-8123</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; PubMed Central Open Access |
| subjects | Adsorbents Adsorption Aqueous environments Carbonization Competitive materials Estrogens Hydrophobicity Hydrothermal crystal growth Montmorillonite Nanocomposites Regeneration Sex hormones Synthesis |
| title | Hydrothermal synthesis of montmorillonite/hydrochar nanocomposites and application for 17β-estradiol and 17α-ethynylestradiol removal |
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