BiVO4/Fe2O3/ZnFe2O4; triple heterojunction for an enhanced PEC performance for hydrogen generation
n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO4, Fe2O3, and ZnFe2O4 metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO4 plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further,...
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| Veröffentlicht in: | RSC advances 2022-04, Vol.12 (20), p.12552-12563 |
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| container_title | RSC advances |
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| creator | Saxena, Sakshi Verma, Anuradha Kumari Asha Biswas, Neeraj Kumar Srivastav, Anupam Satsangi, Vibha Rani Shrivastav, Rohit Dass, Sahab |
| description | n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO4, Fe2O3, and ZnFe2O4 metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO4 plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further, Fe2O3 and ZnFe2O4 serve as a protective layer for Zr:W-BiVO4, which augmented the photoelectrochemical performance and achieved a 1.90% conversion efficiency in the triple heterojunction. XRD measurements display the crystalline nature and reduction in particle size due to strain in the sample, UV-vis absorbance shows an extended absorption towards the visible region and the FE-SEM imaging confirms the successful deposition of ZnFe2O4 over BiVO4/Fe2O3. By analyzing the band edge position, it was observed that on formation, the triple heterojunction not only suppresses the charge carrier recombination but also utilizes the band edge offset for the water splitting reaction using solar energy. |
| doi_str_mv | 10.1039/d2ra00900e |
| format | Article |
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Use of Zr and W as dopants in BiVO4 plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further, Fe2O3 and ZnFe2O4 serve as a protective layer for Zr:W-BiVO4, which augmented the photoelectrochemical performance and achieved a 1.90% conversion efficiency in the triple heterojunction. XRD measurements display the crystalline nature and reduction in particle size due to strain in the sample, UV-vis absorbance shows an extended absorption towards the visible region and the FE-SEM imaging confirms the successful deposition of ZnFe2O4 over BiVO4/Fe2O3. By analyzing the band edge position, it was observed that on formation, the triple heterojunction not only suppresses the charge carrier recombination but also utilizes the band edge offset for the water splitting reaction using solar energy.</description><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/d2ra00900e</identifier><identifier>PMID: 35496341</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Bismuth oxides ; Carrier density ; Carrier recombination ; Chemistry ; Current carriers ; Heterojunctions ; Hydrogen production ; Metal oxides ; Solar energy ; Spray pyrolysis ; Vanadates ; Water splitting ; Zinc ferrites ; Zirconium</subject><ispartof>RSC advances, 2022-04, Vol.12 (20), p.12552-12563</ispartof><rights>Copyright Royal Society of Chemistry 2022</rights><rights>This journal is © The Royal Society of Chemistry 2022 The Royal Society of Chemistry</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041422/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041422/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,53766,53768</link.rule.ids></links><search><creatorcontrib>Saxena, Sakshi</creatorcontrib><creatorcontrib>Verma, Anuradha</creatorcontrib><creatorcontrib>Kumari Asha</creatorcontrib><creatorcontrib>Biswas, Neeraj Kumar</creatorcontrib><creatorcontrib>Srivastav, Anupam</creatorcontrib><creatorcontrib>Satsangi, Vibha Rani</creatorcontrib><creatorcontrib>Shrivastav, Rohit</creatorcontrib><creatorcontrib>Dass, Sahab</creatorcontrib><title>BiVO4/Fe2O3/ZnFe2O4; triple heterojunction for an enhanced PEC performance for hydrogen generation</title><title>RSC advances</title><description>n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO4, Fe2O3, and ZnFe2O4 metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO4 plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further, Fe2O3 and ZnFe2O4 serve as a protective layer for Zr:W-BiVO4, which augmented the photoelectrochemical performance and achieved a 1.90% conversion efficiency in the triple heterojunction. XRD measurements display the crystalline nature and reduction in particle size due to strain in the sample, UV-vis absorbance shows an extended absorption towards the visible region and the FE-SEM imaging confirms the successful deposition of ZnFe2O4 over BiVO4/Fe2O3. By analyzing the band edge position, it was observed that on formation, the triple heterojunction not only suppresses the charge carrier recombination but also utilizes the band edge offset for the water splitting reaction using solar energy.</description><subject>Bismuth oxides</subject><subject>Carrier density</subject><subject>Carrier recombination</subject><subject>Chemistry</subject><subject>Current carriers</subject><subject>Heterojunctions</subject><subject>Hydrogen production</subject><subject>Metal oxides</subject><subject>Solar energy</subject><subject>Spray pyrolysis</subject><subject>Vanadates</subject><subject>Water splitting</subject><subject>Zinc ferrites</subject><subject>Zirconium</subject><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpdT01Lw0AQXQSxpfbiLwh48VK738kiCFpaFQr1oB68hM1m0qQku3GTCP33btSLDgwzvPfmMQ-hC4KvCWZqmVOvMVYYwwmaUszlgmKpJmjedQccSgpCJTlDEya4koyTKcruq7cdX26A7tjy3Y6T30S9r9oaohJ68O4wWNNXzkaF85G2EdhSWwN59LxeRS34ADcj8M2Xx9y7PdgoNHg93p2j00LXHcx_5wy9btYvq8fFdvfwtLrbLloiKCw4y0wecx32XIs4V5gkmTSG0FgmwpBCcVyYOMEcqBI4YyCELISSZMzMgc3Q7Y9vO2QN5AZs73Wdtr5qtD-mTlfpX8ZWZbp3n6nCnHBKg8HVr4F3HwN0fdpUnYG61hbc0KVUikRyJiQO0st_0oMbvA3xRpWiOHwo2Bd0WHp2</recordid><startdate>20220426</startdate><enddate>20220426</enddate><creator>Saxena, Sakshi</creator><creator>Verma, Anuradha</creator><creator>Kumari Asha</creator><creator>Biswas, Neeraj Kumar</creator><creator>Srivastav, Anupam</creator><creator>Satsangi, Vibha Rani</creator><creator>Shrivastav, Rohit</creator><creator>Dass, Sahab</creator><general>Royal Society of Chemistry</general><general>The Royal Society of Chemistry</general><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20220426</creationdate><title>BiVO4/Fe2O3/ZnFe2O4; triple heterojunction for an enhanced PEC performance for hydrogen generation</title><author>Saxena, Sakshi ; Verma, Anuradha ; Kumari Asha ; Biswas, Neeraj Kumar ; Srivastav, Anupam ; Satsangi, Vibha Rani ; Shrivastav, Rohit ; Dass, Sahab</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p152e-43bcd74a52eda57d9018b6cc127685c1f940fc7804e2950b3e556f5961a0094e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Bismuth oxides</topic><topic>Carrier density</topic><topic>Carrier recombination</topic><topic>Chemistry</topic><topic>Current carriers</topic><topic>Heterojunctions</topic><topic>Hydrogen production</topic><topic>Metal oxides</topic><topic>Solar energy</topic><topic>Spray pyrolysis</topic><topic>Vanadates</topic><topic>Water splitting</topic><topic>Zinc ferrites</topic><topic>Zirconium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saxena, Sakshi</creatorcontrib><creatorcontrib>Verma, Anuradha</creatorcontrib><creatorcontrib>Kumari Asha</creatorcontrib><creatorcontrib>Biswas, Neeraj Kumar</creatorcontrib><creatorcontrib>Srivastav, Anupam</creatorcontrib><creatorcontrib>Satsangi, Vibha Rani</creatorcontrib><creatorcontrib>Shrivastav, Rohit</creatorcontrib><creatorcontrib>Dass, Sahab</creatorcontrib><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>Saxena, Sakshi</au><au>Verma, Anuradha</au><au>Kumari Asha</au><au>Biswas, Neeraj Kumar</au><au>Srivastav, Anupam</au><au>Satsangi, Vibha Rani</au><au>Shrivastav, Rohit</au><au>Dass, Sahab</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>BiVO4/Fe2O3/ZnFe2O4; triple heterojunction for an enhanced PEC performance for hydrogen generation</atitle><jtitle>RSC advances</jtitle><date>2022-04-26</date><risdate>2022</risdate><volume>12</volume><issue>20</issue><spage>12552</spage><epage>12563</epage><pages>12552-12563</pages><eissn>2046-2069</eissn><abstract>n/n/n triple heterojunction photoanodes made up of Zr:W-BiVO4, Fe2O3, and ZnFe2O4 metal oxides are fabricated through a simplistic spray pyrolysis method. Use of Zr and W as dopants in BiVO4 plays an important role as Zr increases the carrier density and W reduces the charge recombination. Further, Fe2O3 and ZnFe2O4 serve as a protective layer for Zr:W-BiVO4, which augmented the photoelectrochemical performance and achieved a 1.90% conversion efficiency in the triple heterojunction. XRD measurements display the crystalline nature and reduction in particle size due to strain in the sample, UV-vis absorbance shows an extended absorption towards the visible region and the FE-SEM imaging confirms the successful deposition of ZnFe2O4 over BiVO4/Fe2O3. By analyzing the band edge position, it was observed that on formation, the triple heterojunction not only suppresses the charge carrier recombination but also utilizes the band edge offset for the water splitting reaction using solar energy.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><pmid>35496341</pmid><doi>10.1039/d2ra00900e</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central; PubMed Central Open Access |
| subjects | Bismuth oxides Carrier density Carrier recombination Chemistry Current carriers Heterojunctions Hydrogen production Metal oxides Solar energy Spray pyrolysis Vanadates Water splitting Zinc ferrites Zirconium |
| title | BiVO4/Fe2O3/ZnFe2O4; triple heterojunction for an enhanced PEC performance for hydrogen generation |
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