In Situ Redox Synthesis of Highly Stable Au/Electroactive Polyimide Composite and Its Application on 4-Nitrophenol Reduction
In this study, we developed a series of Au/electroactive polyimide (Au/EPI-5) composite for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) using NaBH as a reducing agent at room temperature. The electroactive polyimide (EPI-5) synthesis was performed by chemical imidization of its 4,4...
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| Veröffentlicht in: | Polymers 2023-06, Vol.15 (12), p.2664 |
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| creator | Chen, Yi-Sheng Shi, Wei-Zhong Luo, Kun-Hao Yeh, Jui-Ming Tsai, Mei-Hui |
| description | In this study, we developed a series of Au/electroactive polyimide (Au/EPI-5) composite for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) using NaBH
as a reducing agent at room temperature. The electroactive polyimide (EPI-5) synthesis was performed by chemical imidization of its 4,4'-(4.4'-isopropylidene-diphenoxy) bis (phthalic anhydride) (BSAA) and amino-capped aniline pentamer (ACAP). In addition, prepare different concentrations of Au ions through the in-situ redox reaction of EPI-5 to obtain Au nanoparticles (AuNPs) and anchored on the surface of EPI-5 to form series of Au/EPI-5 composite. Using SEM and HR-TEM confirm the particle size (23-113 nm) of the reduced AuNPs increases with the increase of the concentration. Based on CV studies, the redox capability of as-prepared electroactive materials was found to show an increase trend: 1Au/EPI-5 < 3Au/EPI-5 < 5Au/EPI-5. The series of Au/EPI-5 composites showed good stability and catalytic activity for the reaction of 4-NP to 4-AP. Especially, the 5Au/EPI-5 composite shows the highest catalytic activity when applied for the reduction of 4-NP to 4-AP within 17 min. The rate constant and kinetic activity energy were calculated to be 1.1 × 10
s
and 38.9 kJ/mol, respectively. Following a reusability test repeated 10 times, the 5Au/EPI-5 composite maintained a conversion rate higher than 95%. Finally, this study elaborates the mechanism of the catalytic reduction of 4-NP to 4-AP. |
| doi_str_mv | 10.3390/polym15122664 |
| format | Article |
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as a reducing agent at room temperature. The electroactive polyimide (EPI-5) synthesis was performed by chemical imidization of its 4,4'-(4.4'-isopropylidene-diphenoxy) bis (phthalic anhydride) (BSAA) and amino-capped aniline pentamer (ACAP). In addition, prepare different concentrations of Au ions through the in-situ redox reaction of EPI-5 to obtain Au nanoparticles (AuNPs) and anchored on the surface of EPI-5 to form series of Au/EPI-5 composite. Using SEM and HR-TEM confirm the particle size (23-113 nm) of the reduced AuNPs increases with the increase of the concentration. Based on CV studies, the redox capability of as-prepared electroactive materials was found to show an increase trend: 1Au/EPI-5 < 3Au/EPI-5 < 5Au/EPI-5. The series of Au/EPI-5 composites showed good stability and catalytic activity for the reaction of 4-NP to 4-AP. Especially, the 5Au/EPI-5 composite shows the highest catalytic activity when applied for the reduction of 4-NP to 4-AP within 17 min. The rate constant and kinetic activity energy were calculated to be 1.1 × 10
s
and 38.9 kJ/mol, respectively. Following a reusability test repeated 10 times, the 5Au/EPI-5 composite maintained a conversion rate higher than 95%. Finally, this study elaborates the mechanism of the catalytic reduction of 4-NP to 4-AP.</description><identifier>ISSN: 2073-4360</identifier><identifier>EISSN: 2073-4360</identifier><identifier>DOI: 10.3390/polym15122664</identifier><identifier>PMID: 37376310</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Aminophenol ; Aniline ; Aqueous solutions ; Aromatic compounds ; Catalysis ; Catalytic activity ; Chemical reduction ; Chemical synthesis ; Efficiency ; Electroactive materials ; Gold ; Graphene ; Japan ; Metal oxides ; Nanoparticles ; Nitrophenol ; Phthalic anhydride ; Pollutants ; Polymers ; Redox reactions ; Reducing agents ; Room temperature ; Spectrum analysis ; Taiwan ; United Kingdom ; Water pollution</subject><ispartof>Polymers, 2023-06, Vol.15 (12), p.2664</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2023 by the authors. 2023</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c455t-fe6a71c29525500ad5ecac6489ef79abeb148982357cdd013cf803a0ac6f50ed3</citedby><cites>FETCH-LOGICAL-c455t-fe6a71c29525500ad5ecac6489ef79abeb148982357cdd013cf803a0ac6f50ed3</cites><orcidid>0009-0001-6517-3282 ; 0000-0003-2930-0405</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/PMC10302344/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10302344/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37376310$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Yi-Sheng</creatorcontrib><creatorcontrib>Shi, Wei-Zhong</creatorcontrib><creatorcontrib>Luo, Kun-Hao</creatorcontrib><creatorcontrib>Yeh, Jui-Ming</creatorcontrib><creatorcontrib>Tsai, Mei-Hui</creatorcontrib><title>In Situ Redox Synthesis of Highly Stable Au/Electroactive Polyimide Composite and Its Application on 4-Nitrophenol Reduction</title><title>Polymers</title><addtitle>Polymers (Basel)</addtitle><description>In this study, we developed a series of Au/electroactive polyimide (Au/EPI-5) composite for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) using NaBH
as a reducing agent at room temperature. The electroactive polyimide (EPI-5) synthesis was performed by chemical imidization of its 4,4'-(4.4'-isopropylidene-diphenoxy) bis (phthalic anhydride) (BSAA) and amino-capped aniline pentamer (ACAP). In addition, prepare different concentrations of Au ions through the in-situ redox reaction of EPI-5 to obtain Au nanoparticles (AuNPs) and anchored on the surface of EPI-5 to form series of Au/EPI-5 composite. Using SEM and HR-TEM confirm the particle size (23-113 nm) of the reduced AuNPs increases with the increase of the concentration. Based on CV studies, the redox capability of as-prepared electroactive materials was found to show an increase trend: 1Au/EPI-5 < 3Au/EPI-5 < 5Au/EPI-5. The series of Au/EPI-5 composites showed good stability and catalytic activity for the reaction of 4-NP to 4-AP. Especially, the 5Au/EPI-5 composite shows the highest catalytic activity when applied for the reduction of 4-NP to 4-AP within 17 min. The rate constant and kinetic activity energy were calculated to be 1.1 × 10
s
and 38.9 kJ/mol, respectively. Following a reusability test repeated 10 times, the 5Au/EPI-5 composite maintained a conversion rate higher than 95%. Finally, this study elaborates the mechanism of the catalytic reduction of 4-NP to 4-AP.</description><subject>Aminophenol</subject><subject>Aniline</subject><subject>Aqueous solutions</subject><subject>Aromatic compounds</subject><subject>Catalysis</subject><subject>Catalytic activity</subject><subject>Chemical reduction</subject><subject>Chemical synthesis</subject><subject>Efficiency</subject><subject>Electroactive materials</subject><subject>Gold</subject><subject>Graphene</subject><subject>Japan</subject><subject>Metal oxides</subject><subject>Nanoparticles</subject><subject>Nitrophenol</subject><subject>Phthalic anhydride</subject><subject>Pollutants</subject><subject>Polymers</subject><subject>Redox reactions</subject><subject>Reducing agents</subject><subject>Room temperature</subject><subject>Spectrum analysis</subject><subject>Taiwan</subject><subject>United Kingdom</subject><subject>Water pollution</subject><issn>2073-4360</issn><issn>2073-4360</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkt9rFDEQx4MottQ--ioBX3zZNtn82n2S46j2oKh4-hxy2dm7lGyybrLFA__45ri2tIZAhszn-50MGYTeU3LBWEsux-j3AxW0rqXkr9BpTRSrOJPk9bP4BJ2ndEvK4kJKqt6iE6aYkoySU_RvFfDa5Rn_hC7-xet9yDtILuHY42u33fk9Xmez8YAX8-WVB5unaGx2d4B_lOJucB3gZRzGmFwGbEKHVznhxTh6Z012MeCyefXNFeG4gxD9odRsD6l36E1vfILzh_MM_f5y9Wt5Xd18_7paLm4qy4XIVQ_SKGrrVtRCEGI6AdZYyZsWetWaDWxoiZuaCWW7jlBm-4YwQwrTCwIdO0Ofj77jvBmgsxDyZLweJzeYaa-jcfplJrid3sY7TQkjNeO8OHx6cJjinxlS1oNLFrw3AeKcdN0wIhUVoi3ox__Q2zhPofRXqLptJCUtK9TFkdoaD9qFPpbCpSvTweBsDNC7cr9QouEN5UoVQXUU2CmmNEH_9HxK9GEY9IthKPyH5z0_0Y9fz-4BNM-x3w</recordid><startdate>20230613</startdate><enddate>20230613</enddate><creator>Chen, Yi-Sheng</creator><creator>Shi, Wei-Zhong</creator><creator>Luo, Kun-Hao</creator><creator>Yeh, Jui-Ming</creator><creator>Tsai, Mei-Hui</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0009-0001-6517-3282</orcidid><orcidid>https://orcid.org/0000-0003-2930-0405</orcidid></search><sort><creationdate>20230613</creationdate><title>In Situ Redox Synthesis of Highly Stable Au/Electroactive Polyimide Composite and Its Application on 4-Nitrophenol Reduction</title><author>Chen, Yi-Sheng ; Shi, Wei-Zhong ; Luo, Kun-Hao ; Yeh, Jui-Ming ; Tsai, Mei-Hui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-fe6a71c29525500ad5ecac6489ef79abeb148982357cdd013cf803a0ac6f50ed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Aminophenol</topic><topic>Aniline</topic><topic>Aqueous solutions</topic><topic>Aromatic compounds</topic><topic>Catalysis</topic><topic>Catalytic activity</topic><topic>Chemical reduction</topic><topic>Chemical synthesis</topic><topic>Efficiency</topic><topic>Electroactive materials</topic><topic>Gold</topic><topic>Graphene</topic><topic>Japan</topic><topic>Metal oxides</topic><topic>Nanoparticles</topic><topic>Nitrophenol</topic><topic>Phthalic anhydride</topic><topic>Pollutants</topic><topic>Polymers</topic><topic>Redox reactions</topic><topic>Reducing agents</topic><topic>Room temperature</topic><topic>Spectrum analysis</topic><topic>Taiwan</topic><topic>United Kingdom</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Yi-Sheng</creatorcontrib><creatorcontrib>Shi, Wei-Zhong</creatorcontrib><creatorcontrib>Luo, Kun-Hao</creatorcontrib><creatorcontrib>Yeh, Jui-Ming</creatorcontrib><creatorcontrib>Tsai, Mei-Hui</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Yi-Sheng</au><au>Shi, Wei-Zhong</au><au>Luo, Kun-Hao</au><au>Yeh, Jui-Ming</au><au>Tsai, Mei-Hui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>In Situ Redox Synthesis of Highly Stable Au/Electroactive Polyimide Composite and Its Application on 4-Nitrophenol Reduction</atitle><jtitle>Polymers</jtitle><addtitle>Polymers (Basel)</addtitle><date>2023-06-13</date><risdate>2023</risdate><volume>15</volume><issue>12</issue><spage>2664</spage><pages>2664-</pages><issn>2073-4360</issn><eissn>2073-4360</eissn><abstract>In this study, we developed a series of Au/electroactive polyimide (Au/EPI-5) composite for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) using NaBH
as a reducing agent at room temperature. The electroactive polyimide (EPI-5) synthesis was performed by chemical imidization of its 4,4'-(4.4'-isopropylidene-diphenoxy) bis (phthalic anhydride) (BSAA) and amino-capped aniline pentamer (ACAP). In addition, prepare different concentrations of Au ions through the in-situ redox reaction of EPI-5 to obtain Au nanoparticles (AuNPs) and anchored on the surface of EPI-5 to form series of Au/EPI-5 composite. Using SEM and HR-TEM confirm the particle size (23-113 nm) of the reduced AuNPs increases with the increase of the concentration. Based on CV studies, the redox capability of as-prepared electroactive materials was found to show an increase trend: 1Au/EPI-5 < 3Au/EPI-5 < 5Au/EPI-5. The series of Au/EPI-5 composites showed good stability and catalytic activity for the reaction of 4-NP to 4-AP. Especially, the 5Au/EPI-5 composite shows the highest catalytic activity when applied for the reduction of 4-NP to 4-AP within 17 min. The rate constant and kinetic activity energy were calculated to be 1.1 × 10
s
and 38.9 kJ/mol, respectively. Following a reusability test repeated 10 times, the 5Au/EPI-5 composite maintained a conversion rate higher than 95%. Finally, this study elaborates the mechanism of the catalytic reduction of 4-NP to 4-AP.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>37376310</pmid><doi>10.3390/polym15122664</doi><orcidid>https://orcid.org/0009-0001-6517-3282</orcidid><orcidid>https://orcid.org/0000-0003-2930-0405</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aminophenol Aniline Aqueous solutions Aromatic compounds Catalysis Catalytic activity Chemical reduction Chemical synthesis Efficiency Electroactive materials Gold Graphene Japan Metal oxides Nanoparticles Nitrophenol Phthalic anhydride Pollutants Polymers Redox reactions Reducing agents Room temperature Spectrum analysis Taiwan United Kingdom Water pollution |
| title | In Situ Redox Synthesis of Highly Stable Au/Electroactive Polyimide Composite and Its Application on 4-Nitrophenol Reduction |
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