A Reusable Rgo/BiVO 4 Photocatalyst for Hydrogen Peroxide Synthesis in Different Flow Systems
The photocatalytic H 2 O 2 production is a sustainable and eco-friendly process, requiring mostly water, oxygen, and sunlight. In previous study, bismuth vanadate (BiVO 4 ), a semiconductor with a low band gap energy (~2.4 eV) was encapsulated with reduced graphene oxide (rGO) to promote the separat...
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| Veröffentlicht in: | Meeting abstracts (Electrochemical Society) 2021-05, Vol.MA2021-01 (45), p.1807-1807 |
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| creator | Dhabarde, Nikhil Carrillo-Ceja, Orlando Subramanian, Vaidyanathan |
| description | The photocatalytic H
2
O
2
production is a sustainable and eco-friendly process, requiring mostly water, oxygen, and sunlight. In previous study, bismuth vanadate (BiVO
4
), a semiconductor with a low band gap energy (~2.4 eV) was encapsulated with reduced graphene oxide (rGO) to promote the separation and transport of charges, preventing the recombination of photogenerated electron-hole pairs in BiVO
4
. 1% GO loading on BiVO
4
was found to deliver effective H
2
O
2
synthesis. H
2
O
2
shows stability in acidic pH (~3), hence the effectiveness of the rGO/BiVO
4
was tested under different types of acids. The order of efficiency of the acids is as follows: oxalic acid > phosphoric acid > formic acid > perchloric acid. This study involves the stability and reusability aspects of rGO/BiVO
4
exhibiting significant H
2
O
2
synthesis in the presence of oxalic acid catalyzing two-electron O
2
reduction reaction. The photocatalytic H
2
O
2
synthesis reaction following a zero-order kinetics, while the photocatalytic H
2
O
2
decomposition following a first-order kinetics has been proposed as a mechanistic insight. A photocatalytic flow reactor study has also been evaluated to assess the feasibility of H
2
O
2
generation in different reactor systems. Photocatalytic performance of rGO/BiVO
4
composite was analysed in batch as well as flow reactor conditions. |
| doi_str_mv | 10.1149/MA2021-01451807mtgabs |
| format | Article |
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2
O
2
production is a sustainable and eco-friendly process, requiring mostly water, oxygen, and sunlight. In previous study, bismuth vanadate (BiVO
4
), a semiconductor with a low band gap energy (~2.4 eV) was encapsulated with reduced graphene oxide (rGO) to promote the separation and transport of charges, preventing the recombination of photogenerated electron-hole pairs in BiVO
4
. 1% GO loading on BiVO
4
was found to deliver effective H
2
O
2
synthesis. H
2
O
2
shows stability in acidic pH (~3), hence the effectiveness of the rGO/BiVO
4
was tested under different types of acids. The order of efficiency of the acids is as follows: oxalic acid > phosphoric acid > formic acid > perchloric acid. This study involves the stability and reusability aspects of rGO/BiVO
4
exhibiting significant H
2
O
2
synthesis in the presence of oxalic acid catalyzing two-electron O
2
reduction reaction. The photocatalytic H
2
O
2
synthesis reaction following a zero-order kinetics, while the photocatalytic H
2
O
2
decomposition following a first-order kinetics has been proposed as a mechanistic insight. A photocatalytic flow reactor study has also been evaluated to assess the feasibility of H
2
O
2
generation in different reactor systems. Photocatalytic performance of rGO/BiVO
4
composite was analysed in batch as well as flow reactor conditions.</description><identifier>ISSN: 2151-2043</identifier><identifier>EISSN: 2151-2035</identifier><identifier>DOI: 10.1149/MA2021-01451807mtgabs</identifier><language>eng</language><ispartof>Meeting abstracts (Electrochemical Society), 2021-05, Vol.MA2021-01 (45), p.1807-1807</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Dhabarde, Nikhil</creatorcontrib><creatorcontrib>Carrillo-Ceja, Orlando</creatorcontrib><creatorcontrib>Subramanian, Vaidyanathan</creatorcontrib><title>A Reusable Rgo/BiVO 4 Photocatalyst for Hydrogen Peroxide Synthesis in Different Flow Systems</title><title>Meeting abstracts (Electrochemical Society)</title><description>The photocatalytic H
2
O
2
production is a sustainable and eco-friendly process, requiring mostly water, oxygen, and sunlight. In previous study, bismuth vanadate (BiVO
4
), a semiconductor with a low band gap energy (~2.4 eV) was encapsulated with reduced graphene oxide (rGO) to promote the separation and transport of charges, preventing the recombination of photogenerated electron-hole pairs in BiVO
4
. 1% GO loading on BiVO
4
was found to deliver effective H
2
O
2
synthesis. H
2
O
2
shows stability in acidic pH (~3), hence the effectiveness of the rGO/BiVO
4
was tested under different types of acids. The order of efficiency of the acids is as follows: oxalic acid > phosphoric acid > formic acid > perchloric acid. This study involves the stability and reusability aspects of rGO/BiVO
4
exhibiting significant H
2
O
2
synthesis in the presence of oxalic acid catalyzing two-electron O
2
reduction reaction. The photocatalytic H
2
O
2
synthesis reaction following a zero-order kinetics, while the photocatalytic H
2
O
2
decomposition following a first-order kinetics has been proposed as a mechanistic insight. A photocatalytic flow reactor study has also been evaluated to assess the feasibility of H
2
O
2
generation in different reactor systems. Photocatalytic performance of rGO/BiVO
4
composite was analysed in batch as well as flow reactor conditions.</description><issn>2151-2043</issn><issn>2151-2035</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqdz8FqAjEUBdBQFKrWTxDeD0zNy8zgdGltxY1UVNyVEPVlTJmZlLyUdv6-lpaCW1f3wuUujhAjlPeI2cN4OVVSYSIxy7GQkzqWZs83oqcwx0TJNO_89yy9FX3mNynTolCqJ16nsKYPNvuKYF368aPbvUAGq5OP_mCiqVqOYH2ARXsMvqQGVhT8lzsSbNomnogdg2vgyVlLgZoI88p_njeOVPOd6FpTMQ3_ciDy-fN2tkgOwTMHsvo9uNqEVqPUPxb9a9GXlvTa3zeFYlXl</recordid><startdate>20210530</startdate><enddate>20210530</enddate><creator>Dhabarde, Nikhil</creator><creator>Carrillo-Ceja, Orlando</creator><creator>Subramanian, Vaidyanathan</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20210530</creationdate><title>A Reusable Rgo/BiVO 4 Photocatalyst for Hydrogen Peroxide Synthesis in Different Flow Systems</title><author>Dhabarde, Nikhil ; Carrillo-Ceja, Orlando ; Subramanian, Vaidyanathan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-crossref_primary_10_1149_MA2021_01451807mtgabs3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Dhabarde, Nikhil</creatorcontrib><creatorcontrib>Carrillo-Ceja, Orlando</creatorcontrib><creatorcontrib>Subramanian, Vaidyanathan</creatorcontrib><collection>CrossRef</collection><jtitle>Meeting abstracts (Electrochemical Society)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dhabarde, Nikhil</au><au>Carrillo-Ceja, Orlando</au><au>Subramanian, Vaidyanathan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Reusable Rgo/BiVO 4 Photocatalyst for Hydrogen Peroxide Synthesis in Different Flow Systems</atitle><jtitle>Meeting abstracts (Electrochemical Society)</jtitle><date>2021-05-30</date><risdate>2021</risdate><volume>MA2021-01</volume><issue>45</issue><spage>1807</spage><epage>1807</epage><pages>1807-1807</pages><issn>2151-2043</issn><eissn>2151-2035</eissn><abstract>The photocatalytic H
2
O
2
production is a sustainable and eco-friendly process, requiring mostly water, oxygen, and sunlight. In previous study, bismuth vanadate (BiVO
4
), a semiconductor with a low band gap energy (~2.4 eV) was encapsulated with reduced graphene oxide (rGO) to promote the separation and transport of charges, preventing the recombination of photogenerated electron-hole pairs in BiVO
4
. 1% GO loading on BiVO
4
was found to deliver effective H
2
O
2
synthesis. H
2
O
2
shows stability in acidic pH (~3), hence the effectiveness of the rGO/BiVO
4
was tested under different types of acids. The order of efficiency of the acids is as follows: oxalic acid > phosphoric acid > formic acid > perchloric acid. This study involves the stability and reusability aspects of rGO/BiVO
4
exhibiting significant H
2
O
2
synthesis in the presence of oxalic acid catalyzing two-electron O
2
reduction reaction. The photocatalytic H
2
O
2
synthesis reaction following a zero-order kinetics, while the photocatalytic H
2
O
2
decomposition following a first-order kinetics has been proposed as a mechanistic insight. A photocatalytic flow reactor study has also been evaluated to assess the feasibility of H
2
O
2
generation in different reactor systems. Photocatalytic performance of rGO/BiVO
4
composite was analysed in batch as well as flow reactor conditions.</abstract><doi>10.1149/MA2021-01451807mtgabs</doi></addata></record> |
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| identifier | ISSN: 2151-2043 |
| ispartof | Meeting abstracts (Electrochemical Society), 2021-05, Vol.MA2021-01 (45), p.1807-1807 |
| issn | 2151-2043 2151-2035 |
| language | eng |
| recordid | cdi_crossref_primary_10_1149_MA2021_01451807mtgabs |
| source | Open Access: IOP Publishing Free Content; Free Full-Text Journals in Chemistry |
| title | A Reusable Rgo/BiVO 4 Photocatalyst for Hydrogen Peroxide Synthesis in Different Flow Systems |
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