Comparative analysis on adsorption properties and mechanisms of nitrate and phosphate by modified corn stalks
In this study, modified corn stalks (MCS) were successfully synthesized by grafting or crosslinking triethylenetetramine (TETA) and triethylamine (TEA) in the presence of epichlorohydrin (EPI) and N , N -dimethylformamide (DMF) for the effective removal of nitrate and phosphate. The characteristics...
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| Veröffentlicht in: | RSC advances 2018-10, Vol.8 (64), p.36468-36476 |
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| creator | Wang, Lin Xu, Zhizhi Fu, Yongsheng Chen, Yangwu Pan, Zhicheng Wang, Rui Tan, Zhouliang |
| description | In this study, modified corn stalks (MCS) were successfully synthesized by grafting or crosslinking triethylenetetramine (TETA) and triethylamine (TEA) in the presence of epichlorohydrin (EPI) and
N
,
N
-dimethylformamide (DMF) for the effective removal of nitrate and phosphate. The characteristics of adsorbents were determined and the adsorption properties and mechanisms of nitrate and phosphate on MCS were studied and compared. Results from Zeta potential, elemental analysis (EA), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) showed that quaternary ammonium group was successfully grafted onto corn stalks (CS). Both adsorption properties and mechanisms indicated that the MCS had a better affinity to phosphate. For adsorption properties, under conditions of a dosage of 4 g L
−1
, pH 6.0 and an initial concentration of 50 mg L
−1
, the phosphate removal rate was 10.97% higher than that nitrate, and SO
4
2−
and Cl
−
had a larger inhibitive effect on nitrate. Mechanisms analysis included adsorption kinetics, isotherm and thermodynamics. Results indicated that the parameters of different models were closely related to the adsorption effect of nitrate and phosphate. In addition, pseudo-second-order and Freundlich model fitted both nitrate and phosphate adsorption well. The thermodynamics analysis indicated that the adsorption process was spontaneous and endothermic in nature.
We compare and analyze the different properties and mechanisms of MCS on nitrate and phosphate. |
| doi_str_mv | 10.1039/c8ra06617e |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1039_C8RA06617E</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2664808067</sourcerecordid><originalsourceid>FETCH-LOGICAL-c428t-72137c22c2e3f40122b7589237cba34ff4bdd658d754944375b15c13add694123</originalsourceid><addsrcrecordid>eNpdkktLxDAUhYMoKjob90rBjQijebfdCMMwPkAQRNchTVMn2jY1tyPMvzfzcBzNJjf3fjkccoLQCcFXBLP82mRBYylJanfQIcVcDimW-e5WfYAGAO84LikIlWQfHTAhRJZjcYiasW86HXTvvmyiW13PwUHi20SX4EPXu1h2wXc29M5CJMqksWaqWwdN5KqkdX28bZeTbuqhmy5OxTxpfOkqZ8vE-NAm0Ov6A47RXqVrsIP1foRebycv4_vh49Pdw3j0ODScZv0wpYSlhlJDLas4JpQWafRLY7PQjFcVL8pSiqxMBc85Z6koiDCE6djNOaHsCN2sdLtZ0djS2DaarFUXXKPDXHnt1N9J66bqzX-pHOeUpjgKXKwFgv-cWehV48DYutat9TNQVEqe4QzLNKLn_9B3PwvxJSNFGOYMZ1xG6nJFmeABgq02ZghWiyDVOHseLYOcRPhs2_4G_YktAqcrIIDZTH9_AvsGRB2jwg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2130430846</pqid></control><display><type>article</type><title>Comparative analysis on adsorption properties and mechanisms of nitrate and phosphate by modified corn stalks</title><source>DOAJ Directory of Open Access Journals</source><source>PubMed Central</source><source>EZB Electronic Journals Library</source><source>PubMed Central Open Access</source><creator>Wang, Lin ; Xu, Zhizhi ; Fu, Yongsheng ; Chen, Yangwu ; Pan, Zhicheng ; Wang, Rui ; Tan, Zhouliang</creator><creatorcontrib>Wang, Lin ; Xu, Zhizhi ; Fu, Yongsheng ; Chen, Yangwu ; Pan, Zhicheng ; Wang, Rui ; Tan, Zhouliang</creatorcontrib><description>In this study, modified corn stalks (MCS) were successfully synthesized by grafting or crosslinking triethylenetetramine (TETA) and triethylamine (TEA) in the presence of epichlorohydrin (EPI) and
N
,
N
-dimethylformamide (DMF) for the effective removal of nitrate and phosphate. The characteristics of adsorbents were determined and the adsorption properties and mechanisms of nitrate and phosphate on MCS were studied and compared. Results from Zeta potential, elemental analysis (EA), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) showed that quaternary ammonium group was successfully grafted onto corn stalks (CS). Both adsorption properties and mechanisms indicated that the MCS had a better affinity to phosphate. For adsorption properties, under conditions of a dosage of 4 g L
−1
, pH 6.0 and an initial concentration of 50 mg L
−1
, the phosphate removal rate was 10.97% higher than that nitrate, and SO
4
2−
and Cl
−
had a larger inhibitive effect on nitrate. Mechanisms analysis included adsorption kinetics, isotherm and thermodynamics. Results indicated that the parameters of different models were closely related to the adsorption effect of nitrate and phosphate. In addition, pseudo-second-order and Freundlich model fitted both nitrate and phosphate adsorption well. The thermodynamics analysis indicated that the adsorption process was spontaneous and endothermic in nature.
We compare and analyze the different properties and mechanisms of MCS on nitrate and phosphate.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c8ra06617e</identifier><identifier>PMID: 35558905</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Adsorption ; Chemistry ; Corn ; Crosslinking ; Endothermic reactions ; Epichlorohydrin ; Fourier transforms ; Infrared analysis ; Nitrates ; Properties (attributes) ; Scanning electron microscopy ; Thermodynamics ; Triethylamine ; Zeta potential</subject><ispartof>RSC advances, 2018-10, Vol.8 (64), p.36468-36476</ispartof><rights>This journal is © The Royal Society of Chemistry.</rights><rights>Copyright Royal Society of Chemistry 2018</rights><rights>This journal is © The Royal Society of Chemistry 2018 The Royal Society of Chemistry</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-72137c22c2e3f40122b7589237cba34ff4bdd658d754944375b15c13add694123</citedby><cites>FETCH-LOGICAL-c428t-72137c22c2e3f40122b7589237cba34ff4bdd658d754944375b15c13add694123</cites><orcidid>0000-0002-7033-0860</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9092270/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9092270/$$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/35558905$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Xu, Zhizhi</creatorcontrib><creatorcontrib>Fu, Yongsheng</creatorcontrib><creatorcontrib>Chen, Yangwu</creatorcontrib><creatorcontrib>Pan, Zhicheng</creatorcontrib><creatorcontrib>Wang, Rui</creatorcontrib><creatorcontrib>Tan, Zhouliang</creatorcontrib><title>Comparative analysis on adsorption properties and mechanisms of nitrate and phosphate by modified corn stalks</title><title>RSC advances</title><addtitle>RSC Adv</addtitle><description>In this study, modified corn stalks (MCS) were successfully synthesized by grafting or crosslinking triethylenetetramine (TETA) and triethylamine (TEA) in the presence of epichlorohydrin (EPI) and
N
,
N
-dimethylformamide (DMF) for the effective removal of nitrate and phosphate. The characteristics of adsorbents were determined and the adsorption properties and mechanisms of nitrate and phosphate on MCS were studied and compared. Results from Zeta potential, elemental analysis (EA), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) showed that quaternary ammonium group was successfully grafted onto corn stalks (CS). Both adsorption properties and mechanisms indicated that the MCS had a better affinity to phosphate. For adsorption properties, under conditions of a dosage of 4 g L
−1
, pH 6.0 and an initial concentration of 50 mg L
−1
, the phosphate removal rate was 10.97% higher than that nitrate, and SO
4
2−
and Cl
−
had a larger inhibitive effect on nitrate. Mechanisms analysis included adsorption kinetics, isotherm and thermodynamics. Results indicated that the parameters of different models were closely related to the adsorption effect of nitrate and phosphate. In addition, pseudo-second-order and Freundlich model fitted both nitrate and phosphate adsorption well. The thermodynamics analysis indicated that the adsorption process was spontaneous and endothermic in nature.
We compare and analyze the different properties and mechanisms of MCS on nitrate and phosphate.</description><subject>Adsorption</subject><subject>Chemistry</subject><subject>Corn</subject><subject>Crosslinking</subject><subject>Endothermic reactions</subject><subject>Epichlorohydrin</subject><subject>Fourier transforms</subject><subject>Infrared analysis</subject><subject>Nitrates</subject><subject>Properties (attributes)</subject><subject>Scanning electron microscopy</subject><subject>Thermodynamics</subject><subject>Triethylamine</subject><subject>Zeta potential</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpdkktLxDAUhYMoKjob90rBjQijebfdCMMwPkAQRNchTVMn2jY1tyPMvzfzcBzNJjf3fjkccoLQCcFXBLP82mRBYylJanfQIcVcDimW-e5WfYAGAO84LikIlWQfHTAhRJZjcYiasW86HXTvvmyiW13PwUHi20SX4EPXu1h2wXc29M5CJMqksWaqWwdN5KqkdX28bZeTbuqhmy5OxTxpfOkqZ8vE-NAm0Ov6A47RXqVrsIP1foRebycv4_vh49Pdw3j0ODScZv0wpYSlhlJDLas4JpQWafRLY7PQjFcVL8pSiqxMBc85Z6koiDCE6djNOaHsCN2sdLtZ0djS2DaarFUXXKPDXHnt1N9J66bqzX-pHOeUpjgKXKwFgv-cWehV48DYutat9TNQVEqe4QzLNKLn_9B3PwvxJSNFGOYMZ1xG6nJFmeABgq02ZghWiyDVOHseLYOcRPhs2_4G_YktAqcrIIDZTH9_AvsGRB2jwg</recordid><startdate>20181029</startdate><enddate>20181029</enddate><creator>Wang, Lin</creator><creator>Xu, Zhizhi</creator><creator>Fu, Yongsheng</creator><creator>Chen, Yangwu</creator><creator>Pan, Zhicheng</creator><creator>Wang, Rui</creator><creator>Tan, Zhouliang</creator><general>Royal Society of Chemistry</general><general>The Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-7033-0860</orcidid></search><sort><creationdate>20181029</creationdate><title>Comparative analysis on adsorption properties and mechanisms of nitrate and phosphate by modified corn stalks</title><author>Wang, Lin ; Xu, Zhizhi ; Fu, Yongsheng ; Chen, Yangwu ; Pan, Zhicheng ; Wang, Rui ; Tan, Zhouliang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-72137c22c2e3f40122b7589237cba34ff4bdd658d754944375b15c13add694123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adsorption</topic><topic>Chemistry</topic><topic>Corn</topic><topic>Crosslinking</topic><topic>Endothermic reactions</topic><topic>Epichlorohydrin</topic><topic>Fourier transforms</topic><topic>Infrared analysis</topic><topic>Nitrates</topic><topic>Properties (attributes)</topic><topic>Scanning electron microscopy</topic><topic>Thermodynamics</topic><topic>Triethylamine</topic><topic>Zeta potential</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Xu, Zhizhi</creatorcontrib><creatorcontrib>Fu, Yongsheng</creatorcontrib><creatorcontrib>Chen, Yangwu</creatorcontrib><creatorcontrib>Pan, Zhicheng</creatorcontrib><creatorcontrib>Wang, Rui</creatorcontrib><creatorcontrib>Tan, Zhouliang</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Lin</au><au>Xu, Zhizhi</au><au>Fu, Yongsheng</au><au>Chen, Yangwu</au><au>Pan, Zhicheng</au><au>Wang, Rui</au><au>Tan, Zhouliang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative analysis on adsorption properties and mechanisms of nitrate and phosphate by modified corn stalks</atitle><jtitle>RSC advances</jtitle><addtitle>RSC Adv</addtitle><date>2018-10-29</date><risdate>2018</risdate><volume>8</volume><issue>64</issue><spage>36468</spage><epage>36476</epage><pages>36468-36476</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>In this study, modified corn stalks (MCS) were successfully synthesized by grafting or crosslinking triethylenetetramine (TETA) and triethylamine (TEA) in the presence of epichlorohydrin (EPI) and
N
,
N
-dimethylformamide (DMF) for the effective removal of nitrate and phosphate. The characteristics of adsorbents were determined and the adsorption properties and mechanisms of nitrate and phosphate on MCS were studied and compared. Results from Zeta potential, elemental analysis (EA), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) showed that quaternary ammonium group was successfully grafted onto corn stalks (CS). Both adsorption properties and mechanisms indicated that the MCS had a better affinity to phosphate. For adsorption properties, under conditions of a dosage of 4 g L
−1
, pH 6.0 and an initial concentration of 50 mg L
−1
, the phosphate removal rate was 10.97% higher than that nitrate, and SO
4
2−
and Cl
−
had a larger inhibitive effect on nitrate. Mechanisms analysis included adsorption kinetics, isotherm and thermodynamics. Results indicated that the parameters of different models were closely related to the adsorption effect of nitrate and phosphate. In addition, pseudo-second-order and Freundlich model fitted both nitrate and phosphate adsorption well. The thermodynamics analysis indicated that the adsorption process was spontaneous and endothermic in nature.
We compare and analyze the different properties and mechanisms of MCS on nitrate and phosphate.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>35558905</pmid><doi>10.1039/c8ra06617e</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-7033-0860</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; PubMed Central; EZB Electronic Journals Library; PubMed Central Open Access |
| subjects | Adsorption Chemistry Corn Crosslinking Endothermic reactions Epichlorohydrin Fourier transforms Infrared analysis Nitrates Properties (attributes) Scanning electron microscopy Thermodynamics Triethylamine Zeta potential |
| title | Comparative analysis on adsorption properties and mechanisms of nitrate and phosphate by modified corn stalks |
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