Metal-free photo-activation of peroxymonosulfate using graphene supported graphitic carbon nitride for enhancing photocatalytic activity
[Display omitted] •Graphitic carbon nitride based metal-free photocatalyst was fabricated.•The peroxymonosulpahte activation enhanced photocatalytic process.•SO4•− formation enhanced the malathion degradation.•The photocatalyst exhibited significant bacterial disinfection. In this work, graphene sup...
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| Veröffentlicht in: | Materials letters 2020-10, Vol.277, p.128277, Article 128277 |
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| creator | Sudhaik, Anita Raizada, Pankaj Thakur, Saloni Saini, Adesh K. Singh, Pardeep Hosseini-Bandegharaei, Ahmad |
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•Graphitic carbon nitride based metal-free photocatalyst was fabricated.•The peroxymonosulpahte activation enhanced photocatalytic process.•SO4•− formation enhanced the malathion degradation.•The photocatalyst exhibited significant bacterial disinfection.
In this work, graphene supported graphitic carbon nitride (g-C3N4, GCN) photocatalyst was used for photo activation of peroxymonosulfate (PMS) oxidant. Coupling with graphene (Gr) upgraded photocatalytic performance of g-C3N4 (GCN), as graphene increased surface area, acted as a sink/support material and reduced charge carriers recombination. PMS assisted photodegradation processes had superior malathion pesticide degradation efficiency in 5 h. Peroxymonosulfate activation by graphene supported graphitic carbon nitride (Gr/GCN/PMS) exhibited higher malathion degradation than other photocatalysts and followed the removal order: 94% (Gr/GCN/PMS) > 72% (Gr/GCN) > 65% (GCN/PMS) > 45% (GCN) > 30% (Gr). Likewise, 94% removal of Escherichia coli (E. coli) was observed by Gr/GCN nanocomposite in 6 h under visible light. Scavenging studies confirmed the important role of holes (h+), hydroxyl (•OH) and superoxide (SO4•−) radicals in photodegradation processes which was further validated by possible mechanism. |
| doi_str_mv | 10.1016/j.matlet.2020.128277 |
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•Graphitic carbon nitride based metal-free photocatalyst was fabricated.•The peroxymonosulpahte activation enhanced photocatalytic process.•SO4•− formation enhanced the malathion degradation.•The photocatalyst exhibited significant bacterial disinfection.
In this work, graphene supported graphitic carbon nitride (g-C3N4, GCN) photocatalyst was used for photo activation of peroxymonosulfate (PMS) oxidant. Coupling with graphene (Gr) upgraded photocatalytic performance of g-C3N4 (GCN), as graphene increased surface area, acted as a sink/support material and reduced charge carriers recombination. PMS assisted photodegradation processes had superior malathion pesticide degradation efficiency in 5 h. Peroxymonosulfate activation by graphene supported graphitic carbon nitride (Gr/GCN/PMS) exhibited higher malathion degradation than other photocatalysts and followed the removal order: 94% (Gr/GCN/PMS) > 72% (Gr/GCN) > 65% (GCN/PMS) > 45% (GCN) > 30% (Gr). Likewise, 94% removal of Escherichia coli (E. coli) was observed by Gr/GCN nanocomposite in 6 h under visible light. Scavenging studies confirmed the important role of holes (h+), hydroxyl (•OH) and superoxide (SO4•−) radicals in photodegradation processes which was further validated by possible mechanism.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2020.128277</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Activation ; Carbon ; Carbon materials ; Carbon nitride ; Catalytic activity ; Charge materials ; Current carriers ; E coli ; Enhanced photoactivity ; g-C3N4 ; Graphene ; Materials science ; Nanocomposites ; Oxidizing agents ; Peroxymonosulphate activation ; Pesticides ; Photocatalysis ; Photocatalysts ; Photodegradation ; Scavenging ; Semiconductors</subject><ispartof>Materials letters, 2020-10, Vol.277, p.128277, Article 128277</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-6cfae6f542ac371aaef601d3c6b7497cc0625fa2af86595c115fdda0c895ec6b3</citedby><cites>FETCH-LOGICAL-c334t-6cfae6f542ac371aaef601d3c6b7497cc0625fa2af86595c115fdda0c895ec6b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2020.128277$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Sudhaik, Anita</creatorcontrib><creatorcontrib>Raizada, Pankaj</creatorcontrib><creatorcontrib>Thakur, Saloni</creatorcontrib><creatorcontrib>Saini, Adesh K.</creatorcontrib><creatorcontrib>Singh, Pardeep</creatorcontrib><creatorcontrib>Hosseini-Bandegharaei, Ahmad</creatorcontrib><title>Metal-free photo-activation of peroxymonosulfate using graphene supported graphitic carbon nitride for enhancing photocatalytic activity</title><title>Materials letters</title><description>[Display omitted]
•Graphitic carbon nitride based metal-free photocatalyst was fabricated.•The peroxymonosulpahte activation enhanced photocatalytic process.•SO4•− formation enhanced the malathion degradation.•The photocatalyst exhibited significant bacterial disinfection.
In this work, graphene supported graphitic carbon nitride (g-C3N4, GCN) photocatalyst was used for photo activation of peroxymonosulfate (PMS) oxidant. Coupling with graphene (Gr) upgraded photocatalytic performance of g-C3N4 (GCN), as graphene increased surface area, acted as a sink/support material and reduced charge carriers recombination. PMS assisted photodegradation processes had superior malathion pesticide degradation efficiency in 5 h. Peroxymonosulfate activation by graphene supported graphitic carbon nitride (Gr/GCN/PMS) exhibited higher malathion degradation than other photocatalysts and followed the removal order: 94% (Gr/GCN/PMS) > 72% (Gr/GCN) > 65% (GCN/PMS) > 45% (GCN) > 30% (Gr). Likewise, 94% removal of Escherichia coli (E. coli) was observed by Gr/GCN nanocomposite in 6 h under visible light. Scavenging studies confirmed the important role of holes (h+), hydroxyl (•OH) and superoxide (SO4•−) radicals in photodegradation processes which was further validated by possible mechanism.</description><subject>Activation</subject><subject>Carbon</subject><subject>Carbon materials</subject><subject>Carbon nitride</subject><subject>Catalytic activity</subject><subject>Charge materials</subject><subject>Current carriers</subject><subject>E coli</subject><subject>Enhanced photoactivity</subject><subject>g-C3N4</subject><subject>Graphene</subject><subject>Materials science</subject><subject>Nanocomposites</subject><subject>Oxidizing agents</subject><subject>Peroxymonosulphate activation</subject><subject>Pesticides</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Photodegradation</subject><subject>Scavenging</subject><subject>Semiconductors</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kM1qIzEQhEVIIM7PG-xBsOfxSvMnz2UhmGR3wUsuCeQm2j2tWMaWJpLGxG-Qx145s-ecGoqvquhi7JsUcylk-2M730PaUZqXosxSuSiVOmMzuVBVUXeqO2ezjKmiUerlkl3FuBVC1J2oZ-zjLyXYFSYQ8WHjky8Akz1Ast5xb_hAwb8f9975OO4MJOJjtO6VvwYYNuSIx3EYfEjUT5JNFjlCWGe7synYnrjxgZPbgMOT87MFIbceT-xnnU3HG3ZhYBfp9v-9Zs8P90_L38Xq8def5d2qwKqqU9GiAWpNU5eAlZIAZFoh-wrbtcqvIoq2bAyUYBZt0zUoZWP6HgQuuoYyVF2z71PuEPzbSDHprR-Dy5W6rOtMNTkvU_VEYfAxBjJ6CHYP4ail0KfN9VZPm-vT5nraPNt-TjbKHxwsBR3RkkPqbSBMuvf264B_UlmRtA</recordid><startdate>20201015</startdate><enddate>20201015</enddate><creator>Sudhaik, Anita</creator><creator>Raizada, Pankaj</creator><creator>Thakur, Saloni</creator><creator>Saini, Adesh K.</creator><creator>Singh, Pardeep</creator><creator>Hosseini-Bandegharaei, Ahmad</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20201015</creationdate><title>Metal-free photo-activation of peroxymonosulfate using graphene supported graphitic carbon nitride for enhancing photocatalytic activity</title><author>Sudhaik, Anita ; Raizada, Pankaj ; Thakur, Saloni ; Saini, Adesh K. ; Singh, Pardeep ; Hosseini-Bandegharaei, Ahmad</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-6cfae6f542ac371aaef601d3c6b7497cc0625fa2af86595c115fdda0c895ec6b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activation</topic><topic>Carbon</topic><topic>Carbon materials</topic><topic>Carbon nitride</topic><topic>Catalytic activity</topic><topic>Charge materials</topic><topic>Current carriers</topic><topic>E coli</topic><topic>Enhanced photoactivity</topic><topic>g-C3N4</topic><topic>Graphene</topic><topic>Materials science</topic><topic>Nanocomposites</topic><topic>Oxidizing agents</topic><topic>Peroxymonosulphate activation</topic><topic>Pesticides</topic><topic>Photocatalysis</topic><topic>Photocatalysts</topic><topic>Photodegradation</topic><topic>Scavenging</topic><topic>Semiconductors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sudhaik, Anita</creatorcontrib><creatorcontrib>Raizada, Pankaj</creatorcontrib><creatorcontrib>Thakur, Saloni</creatorcontrib><creatorcontrib>Saini, Adesh K.</creatorcontrib><creatorcontrib>Singh, Pardeep</creatorcontrib><creatorcontrib>Hosseini-Bandegharaei, Ahmad</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sudhaik, Anita</au><au>Raizada, Pankaj</au><au>Thakur, Saloni</au><au>Saini, Adesh K.</au><au>Singh, Pardeep</au><au>Hosseini-Bandegharaei, Ahmad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Metal-free photo-activation of peroxymonosulfate using graphene supported graphitic carbon nitride for enhancing photocatalytic activity</atitle><jtitle>Materials letters</jtitle><date>2020-10-15</date><risdate>2020</risdate><volume>277</volume><spage>128277</spage><pages>128277-</pages><artnum>128277</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>[Display omitted]
•Graphitic carbon nitride based metal-free photocatalyst was fabricated.•The peroxymonosulpahte activation enhanced photocatalytic process.•SO4•− formation enhanced the malathion degradation.•The photocatalyst exhibited significant bacterial disinfection.
In this work, graphene supported graphitic carbon nitride (g-C3N4, GCN) photocatalyst was used for photo activation of peroxymonosulfate (PMS) oxidant. Coupling with graphene (Gr) upgraded photocatalytic performance of g-C3N4 (GCN), as graphene increased surface area, acted as a sink/support material and reduced charge carriers recombination. PMS assisted photodegradation processes had superior malathion pesticide degradation efficiency in 5 h. Peroxymonosulfate activation by graphene supported graphitic carbon nitride (Gr/GCN/PMS) exhibited higher malathion degradation than other photocatalysts and followed the removal order: 94% (Gr/GCN/PMS) > 72% (Gr/GCN) > 65% (GCN/PMS) > 45% (GCN) > 30% (Gr). Likewise, 94% removal of Escherichia coli (E. coli) was observed by Gr/GCN nanocomposite in 6 h under visible light. Scavenging studies confirmed the important role of holes (h+), hydroxyl (•OH) and superoxide (SO4•−) radicals in photodegradation processes which was further validated by possible mechanism.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2020.128277</doi></addata></record> |
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| subjects | Activation Carbon Carbon materials Carbon nitride Catalytic activity Charge materials Current carriers E coli Enhanced photoactivity g-C3N4 Graphene Materials science Nanocomposites Oxidizing agents Peroxymonosulphate activation Pesticides Photocatalysis Photocatalysts Photodegradation Scavenging Semiconductors |
| title | Metal-free photo-activation of peroxymonosulfate using graphene supported graphitic carbon nitride for enhancing photocatalytic activity |
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