Preparation and photocatalytic activity of TiO2-exfoliated graphite oxide composite using an ecofriendly graphite oxidation method
•A simple and innovative method to produce exfoliated graphite oxide (EGO) and TiO2-EGO composites.•Ozonation followed by thermal treatment produces a graphite-like structure containing oxygen and sp3 carbon.•TiO2-EGO composites are useful photocatalysts to degrade organic compounds. A simple and ef...
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| Veröffentlicht in: | Applied surface science 2015-12, Vol.359, p.868-874 |
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| container_title | Applied surface science |
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| creator | Baldissarelli, Vanessa Zanon de Souza, Thiago Andrade, Luisa Oliveira, Luiz Fernando Cappa de José, Humberto Jorge Moreira, Regina de Fátima Peralta Muniz |
| description | •A simple and innovative method to produce exfoliated graphite oxide (EGO) and TiO2-EGO composites.•Ozonation followed by thermal treatment produces a graphite-like structure containing oxygen and sp3 carbon.•TiO2-EGO composites are useful photocatalysts to degrade organic compounds.
A simple and effective stepwise-method was developed to produce expanded exfoliated graphite oxide (EGO). Using a combination of ozone exposure and thermal treatment we demonstrate that a graphite surface can be modified to generate a graphene-like surface containing oxygen and sp3 carbon. This expanded exfoliated graphite oxide is useful for the production, through thermal treatment, of photocatalytic TiO2-EGO composites which are more active than those produce by the Hummers method. The photocatalytic activity of TiO2-EGO in methylene blue (MB) bleaching under UV light is enhanced in comparison with TiO2 P25. |
| doi_str_mv | 10.1016/j.apsusc.2015.10.199 |
| format | Article |
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A simple and effective stepwise-method was developed to produce expanded exfoliated graphite oxide (EGO). Using a combination of ozone exposure and thermal treatment we demonstrate that a graphite surface can be modified to generate a graphene-like surface containing oxygen and sp3 carbon. This expanded exfoliated graphite oxide is useful for the production, through thermal treatment, of photocatalytic TiO2-EGO composites which are more active than those produce by the Hummers method. The photocatalytic activity of TiO2-EGO in methylene blue (MB) bleaching under UV light is enhanced in comparison with TiO2 P25.</description><identifier>ISSN: 0169-4332</identifier><identifier>DOI: 10.1016/j.apsusc.2015.10.199</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Bleaching ; Composite ; Exfoliated graphite oxide ; Exfoliation ; Graphite ; Heat treatment ; Methylene blue ; Oxides ; Photocatalysis ; Surface chemistry ; TiO2 ; Titanium dioxide</subject><ispartof>Applied surface science, 2015-12, Vol.359, p.868-874</ispartof><rights>2015 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c379t-605fb762f529314cd308eae6565c10403894efd3b5a3ef2cc9072f4a8e7b384f3</citedby><cites>FETCH-LOGICAL-c379t-605fb762f529314cd308eae6565c10403894efd3b5a3ef2cc9072f4a8e7b384f3</cites><orcidid>0000-0002-2863-7260</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0169433215026185$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Baldissarelli, Vanessa Zanon</creatorcontrib><creatorcontrib>de Souza, Thiago</creatorcontrib><creatorcontrib>Andrade, Luisa</creatorcontrib><creatorcontrib>Oliveira, Luiz Fernando Cappa de</creatorcontrib><creatorcontrib>José, Humberto Jorge</creatorcontrib><creatorcontrib>Moreira, Regina de Fátima Peralta Muniz</creatorcontrib><title>Preparation and photocatalytic activity of TiO2-exfoliated graphite oxide composite using an ecofriendly graphite oxidation method</title><title>Applied surface science</title><description>•A simple and innovative method to produce exfoliated graphite oxide (EGO) and TiO2-EGO composites.•Ozonation followed by thermal treatment produces a graphite-like structure containing oxygen and sp3 carbon.•TiO2-EGO composites are useful photocatalysts to degrade organic compounds.
A simple and effective stepwise-method was developed to produce expanded exfoliated graphite oxide (EGO). Using a combination of ozone exposure and thermal treatment we demonstrate that a graphite surface can be modified to generate a graphene-like surface containing oxygen and sp3 carbon. This expanded exfoliated graphite oxide is useful for the production, through thermal treatment, of photocatalytic TiO2-EGO composites which are more active than those produce by the Hummers method. The photocatalytic activity of TiO2-EGO in methylene blue (MB) bleaching under UV light is enhanced in comparison with TiO2 P25.</description><subject>Bleaching</subject><subject>Composite</subject><subject>Exfoliated graphite oxide</subject><subject>Exfoliation</subject><subject>Graphite</subject><subject>Heat treatment</subject><subject>Methylene blue</subject><subject>Oxides</subject><subject>Photocatalysis</subject><subject>Surface chemistry</subject><subject>TiO2</subject><subject>Titanium dioxide</subject><issn>0169-4332</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9UD1PwzAUzAAS5eMfMHhkSbDjfHlBQhVfUqUylNly7efWVRIH26malV9OQlhYmJ7evbt7uouiW4ITgklxf0hE53svkxSTPJlQxs6ixXhicUZpehFden_AmKRVSRfR17uDTjgRjG2RaBXq9jZYKYKoh2AkEjKYowkDshptzDqN4aRtbUQAhXZOdHsTANmTUYCkbTrrp733pt2Nbgik1c5Aq-rhL3v-10DYW3UdnWtRe7j5nVfRx_PTZvkar9Yvb8vHVSxpyUJc4FxvyyLVecooyaSiuAIBRV7kkuAM04ploBXd5oKCTqVkuEx1Jioot7TKNL2K7mbfztnPHnzgjfES6lq0YHvPSVlWmFKS45GazVTprPcONO-caYQbOMF8qpkf-Fwzn2r-QRkbZQ-zDMYYRwOOezmml6CMAxm4suZ_g2-_KY3L</recordid><startdate>20151230</startdate><enddate>20151230</enddate><creator>Baldissarelli, Vanessa Zanon</creator><creator>de Souza, Thiago</creator><creator>Andrade, Luisa</creator><creator>Oliveira, Luiz Fernando Cappa de</creator><creator>José, Humberto Jorge</creator><creator>Moreira, Regina de Fátima Peralta Muniz</creator><general>Elsevier B.V</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2863-7260</orcidid></search><sort><creationdate>20151230</creationdate><title>Preparation and photocatalytic activity of TiO2-exfoliated graphite oxide composite using an ecofriendly graphite oxidation method</title><author>Baldissarelli, Vanessa Zanon ; de Souza, Thiago ; Andrade, Luisa ; Oliveira, Luiz Fernando Cappa de ; José, Humberto Jorge ; Moreira, Regina de Fátima Peralta Muniz</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c379t-605fb762f529314cd308eae6565c10403894efd3b5a3ef2cc9072f4a8e7b384f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Bleaching</topic><topic>Composite</topic><topic>Exfoliated graphite oxide</topic><topic>Exfoliation</topic><topic>Graphite</topic><topic>Heat treatment</topic><topic>Methylene blue</topic><topic>Oxides</topic><topic>Photocatalysis</topic><topic>Surface chemistry</topic><topic>TiO2</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Baldissarelli, Vanessa Zanon</creatorcontrib><creatorcontrib>de Souza, Thiago</creatorcontrib><creatorcontrib>Andrade, Luisa</creatorcontrib><creatorcontrib>Oliveira, Luiz Fernando Cappa de</creatorcontrib><creatorcontrib>José, Humberto Jorge</creatorcontrib><creatorcontrib>Moreira, Regina de Fátima Peralta Muniz</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Baldissarelli, Vanessa Zanon</au><au>de Souza, Thiago</au><au>Andrade, Luisa</au><au>Oliveira, Luiz Fernando Cappa de</au><au>José, Humberto Jorge</au><au>Moreira, Regina de Fátima Peralta Muniz</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and photocatalytic activity of TiO2-exfoliated graphite oxide composite using an ecofriendly graphite oxidation method</atitle><jtitle>Applied surface science</jtitle><date>2015-12-30</date><risdate>2015</risdate><volume>359</volume><spage>868</spage><epage>874</epage><pages>868-874</pages><issn>0169-4332</issn><abstract>•A simple and innovative method to produce exfoliated graphite oxide (EGO) and TiO2-EGO composites.•Ozonation followed by thermal treatment produces a graphite-like structure containing oxygen and sp3 carbon.•TiO2-EGO composites are useful photocatalysts to degrade organic compounds.
A simple and effective stepwise-method was developed to produce expanded exfoliated graphite oxide (EGO). Using a combination of ozone exposure and thermal treatment we demonstrate that a graphite surface can be modified to generate a graphene-like surface containing oxygen and sp3 carbon. This expanded exfoliated graphite oxide is useful for the production, through thermal treatment, of photocatalytic TiO2-EGO composites which are more active than those produce by the Hummers method. The photocatalytic activity of TiO2-EGO in methylene blue (MB) bleaching under UV light is enhanced in comparison with TiO2 P25.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.apsusc.2015.10.199</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-2863-7260</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Bleaching Composite Exfoliated graphite oxide Exfoliation Graphite Heat treatment Methylene blue Oxides Photocatalysis Surface chemistry TiO2 Titanium dioxide |
| title | Preparation and photocatalytic activity of TiO2-exfoliated graphite oxide composite using an ecofriendly graphite oxidation method |
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