Enhanced photocatalytic and electrochemical performance of TiO2-Fe2O3 nanocomposite: Its applications in dye decolorization and as supercapacitors
This work reveals a green combustion route for the synthesis of TiO 2 , Fe 2 O 3 and TiO 2 -Fe 2 O 3 nanocomposites as photocatalysts for decolorization of Titan Yellow (TY) and Methyl Orange (MO) dyes at room temperature in aqueous solution concentration of 20 ppm under UV-light irradiation. We obs...
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| Veröffentlicht in: | Scientific reports 2020-01, Vol.10 (1), p.1249-1249, Article 1249 |
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| creator | Kumar, M. R. Anil Abebe, Buzuayehu Nagaswarupa, H. P. Murthy, H. C. Ananda Ravikumar, C. R. Sabir, Fedlu Kedir |
| description | This work reveals a green combustion route for the synthesis of TiO
2
, Fe
2
O
3
and TiO
2
-Fe
2
O
3
nanocomposites as photocatalysts for decolorization of Titan Yellow (TY) and Methyl Orange (MO) dyes at room temperature in aqueous solution concentration of 20 ppm under UV-light irradiation. We observed that the TiO
2
-Fe
2
O
3
nanocomposite shows superior photocatalytic activity for TY dye compared to pure TiO
2
and Fe
2
O
3
. Rate constant (k) values of TiO
2
, Fe
2
O
3
and TiO
2
–Fe
2
O
3
for TY and MO are 0.0194, 0.0159, 0.04396 and 0.00931, 0.00772 0.0119 kmin
−1
respectively. The surface area and pore volume of TiO
2
-Fe
2
O
3
nanocomposite were found to be 71.56 m
2
/g and 0.076 cm
3
/g, respectively as revealed by BET studies. From the Barrett–Joyner–Halenda (BJH) plot, the mean pore diameter of TiO
2
-Fe
2
O
3
nanoparticles was found to be 2.43 nm. Further, the TiO
2
-Fe
2
O
3
nanocomposite showed good electrochemical behavior as an electrode material for supercapacitors when compared to pure TiO
2
and Fe
2
O
3
nanoparticles resulted in stable electrochemical performance with nearly 100% coulombic efficiency at a scan rate of 10 mV/s for 1000 cycles. Interestingly, the novelty of this work is that the designed supercapacitors showed stable electrochemical performance even at 1000
th
cycle, which might be useful for rechargeable supercapacitor applications. The electrochemical properties of the nanocomposites were compared by the data obtained by cyclic voltammograms, charge-discharge tests and electrochemical impedance spectroscopic studies. These results demonstrated that the TiO
2
-Fe
2
O
3
nanocomposite showed stable performance compared to TiO
2
and Fe
2
O
3
nanoparticles at current density of 5 Ag
−1
. |
| doi_str_mv | 10.1038/s41598-020-58110-7 |
| format | Article |
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2
, Fe
2
O
3
and TiO
2
-Fe
2
O
3
nanocomposites as photocatalysts for decolorization of Titan Yellow (TY) and Methyl Orange (MO) dyes at room temperature in aqueous solution concentration of 20 ppm under UV-light irradiation. We observed that the TiO
2
-Fe
2
O
3
nanocomposite shows superior photocatalytic activity for TY dye compared to pure TiO
2
and Fe
2
O
3
. Rate constant (k) values of TiO
2
, Fe
2
O
3
and TiO
2
–Fe
2
O
3
for TY and MO are 0.0194, 0.0159, 0.04396 and 0.00931, 0.00772 0.0119 kmin
−1
respectively. The surface area and pore volume of TiO
2
-Fe
2
O
3
nanocomposite were found to be 71.56 m
2
/g and 0.076 cm
3
/g, respectively as revealed by BET studies. From the Barrett–Joyner–Halenda (BJH) plot, the mean pore diameter of TiO
2
-Fe
2
O
3
nanoparticles was found to be 2.43 nm. Further, the TiO
2
-Fe
2
O
3
nanocomposite showed good electrochemical behavior as an electrode material for supercapacitors when compared to pure TiO
2
and Fe
2
O
3
nanoparticles resulted in stable electrochemical performance with nearly 100% coulombic efficiency at a scan rate of 10 mV/s for 1000 cycles. Interestingly, the novelty of this work is that the designed supercapacitors showed stable electrochemical performance even at 1000
th
cycle, which might be useful for rechargeable supercapacitor applications. The electrochemical properties of the nanocomposites were compared by the data obtained by cyclic voltammograms, charge-discharge tests and electrochemical impedance spectroscopic studies. These results demonstrated that the TiO
2
-Fe
2
O
3
nanocomposite showed stable performance compared to TiO
2
and Fe
2
O
3
nanoparticles at current density of 5 Ag
−1
.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-020-58110-7</identifier><identifier>PMID: 31988344</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>704/172/169 ; 704/4111 ; Decolorization ; Dyes ; Electrochemistry ; Electrons ; Humanities and Social Sciences ; Irradiation ; multidisciplinary ; Nanocomposites ; Nanoparticles ; Photocatalysis ; Science ; Science (multidisciplinary) ; Titanium dioxide ; Ultraviolet radiation</subject><ispartof>Scientific reports, 2020-01, Vol.10 (1), p.1249-1249, Article 1249</ispartof><rights>The Author(s) 2020</rights><rights>This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c488t-9d88633eb8f42cb50b6f31496c29dfa41553cad0cefbc8bbb58b6f50fc28c1003</citedby><cites>FETCH-LOGICAL-c488t-9d88633eb8f42cb50b6f31496c29dfa41553cad0cefbc8bbb58b6f50fc28c1003</cites><orcidid>0000-0002-4692-444X</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/PMC6985144/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6985144/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,41120,42189,51576,53791,53793</link.rule.ids></links><search><creatorcontrib>Kumar, M. R. Anil</creatorcontrib><creatorcontrib>Abebe, Buzuayehu</creatorcontrib><creatorcontrib>Nagaswarupa, H. P.</creatorcontrib><creatorcontrib>Murthy, H. C. Ananda</creatorcontrib><creatorcontrib>Ravikumar, C. R.</creatorcontrib><creatorcontrib>Sabir, Fedlu Kedir</creatorcontrib><title>Enhanced photocatalytic and electrochemical performance of TiO2-Fe2O3 nanocomposite: Its applications in dye decolorization and as supercapacitors</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><description>This work reveals a green combustion route for the synthesis of TiO
2
, Fe
2
O
3
and TiO
2
-Fe
2
O
3
nanocomposites as photocatalysts for decolorization of Titan Yellow (TY) and Methyl Orange (MO) dyes at room temperature in aqueous solution concentration of 20 ppm under UV-light irradiation. We observed that the TiO
2
-Fe
2
O
3
nanocomposite shows superior photocatalytic activity for TY dye compared to pure TiO
2
and Fe
2
O
3
. Rate constant (k) values of TiO
2
, Fe
2
O
3
and TiO
2
–Fe
2
O
3
for TY and MO are 0.0194, 0.0159, 0.04396 and 0.00931, 0.00772 0.0119 kmin
−1
respectively. The surface area and pore volume of TiO
2
-Fe
2
O
3
nanocomposite were found to be 71.56 m
2
/g and 0.076 cm
3
/g, respectively as revealed by BET studies. From the Barrett–Joyner–Halenda (BJH) plot, the mean pore diameter of TiO
2
-Fe
2
O
3
nanoparticles was found to be 2.43 nm. Further, the TiO
2
-Fe
2
O
3
nanocomposite showed good electrochemical behavior as an electrode material for supercapacitors when compared to pure TiO
2
and Fe
2
O
3
nanoparticles resulted in stable electrochemical performance with nearly 100% coulombic efficiency at a scan rate of 10 mV/s for 1000 cycles. Interestingly, the novelty of this work is that the designed supercapacitors showed stable electrochemical performance even at 1000
th
cycle, which might be useful for rechargeable supercapacitor applications. The electrochemical properties of the nanocomposites were compared by the data obtained by cyclic voltammograms, charge-discharge tests and electrochemical impedance spectroscopic studies. These results demonstrated that the TiO
2
-Fe
2
O
3
nanocomposite showed stable performance compared to TiO
2
and Fe
2
O
3
nanoparticles at current density of 5 Ag
−1
.</description><subject>704/172/169</subject><subject>704/4111</subject><subject>Decolorization</subject><subject>Dyes</subject><subject>Electrochemistry</subject><subject>Electrons</subject><subject>Humanities and Social Sciences</subject><subject>Irradiation</subject><subject>multidisciplinary</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>Photocatalysis</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Titanium dioxide</subject><subject>Ultraviolet radiation</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kc1u1DAUhSMEolXpC7CyxIZNin8zDgskVLWlUqXZlLXl3Nx0XCV2sB2k6WPwxHhmKvqzwBtbvt8519enqj4yesao0F-SZKrVNeW0VpoxWq_eVMecSlVzwfnbZ-ej6jSle1qW4q1k7fvqSLBWayHlcfXnwm-sB-zJvAk5gM123GYHxPqe4IiQY4ANTg7sSGaMQ4jTjidhILduzetL5GtBvPUBwjSH5DJ-Jdc5ETvPY1FlF3wizpN-i6RHCGOI7mF_ve9hE0lLMQY7W3A5xPShejfYMeHp435S_by8uD3_Ud-sr67Pv9_UILXOddtr3QiBnR4kh07RrhkEk20DvO0HW75HCbA9BRw60F3XKV0IRQfgGhil4qT6dvCdl27CHtDnaEczRzfZuDXBOvOy4t3G3IXfpmm1YlIWg8-PBjH8WjBlM7kEOI7WY1iS4UKuFKOyYQX99Aq9D0v0Zbwd1UhaghGF4gcKYkgp4vDvMYyaXermkLopqZt96mZVROIgSgX2dxifrP-j-gu1tLIE</recordid><startdate>20200127</startdate><enddate>20200127</enddate><creator>Kumar, M. 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R.</creator><creator>Sabir, Fedlu Kedir</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-4692-444X</orcidid></search><sort><creationdate>20200127</creationdate><title>Enhanced photocatalytic and electrochemical performance of TiO2-Fe2O3 nanocomposite: Its applications in dye decolorization and as supercapacitors</title><author>Kumar, M. R. Anil ; Abebe, Buzuayehu ; Nagaswarupa, H. P. ; Murthy, H. C. Ananda ; Ravikumar, C. R. ; Sabir, Fedlu Kedir</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c488t-9d88633eb8f42cb50b6f31496c29dfa41553cad0cefbc8bbb58b6f50fc28c1003</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>704/172/169</topic><topic>704/4111</topic><topic>Decolorization</topic><topic>Dyes</topic><topic>Electrochemistry</topic><topic>Electrons</topic><topic>Humanities and Social Sciences</topic><topic>Irradiation</topic><topic>multidisciplinary</topic><topic>Nanocomposites</topic><topic>Nanoparticles</topic><topic>Photocatalysis</topic><topic>Science</topic><topic>Science (multidisciplinary)</topic><topic>Titanium dioxide</topic><topic>Ultraviolet radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kumar, M. R. Anil</creatorcontrib><creatorcontrib>Abebe, Buzuayehu</creatorcontrib><creatorcontrib>Nagaswarupa, H. P.</creatorcontrib><creatorcontrib>Murthy, H. C. Ananda</creatorcontrib><creatorcontrib>Ravikumar, C. R.</creatorcontrib><creatorcontrib>Sabir, Fedlu Kedir</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kumar, M. R. Anil</au><au>Abebe, Buzuayehu</au><au>Nagaswarupa, H. P.</au><au>Murthy, H. C. Ananda</au><au>Ravikumar, C. R.</au><au>Sabir, Fedlu Kedir</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced photocatalytic and electrochemical performance of TiO2-Fe2O3 nanocomposite: Its applications in dye decolorization and as supercapacitors</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><date>2020-01-27</date><risdate>2020</risdate><volume>10</volume><issue>1</issue><spage>1249</spage><epage>1249</epage><pages>1249-1249</pages><artnum>1249</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>This work reveals a green combustion route for the synthesis of TiO
2
, Fe
2
O
3
and TiO
2
-Fe
2
O
3
nanocomposites as photocatalysts for decolorization of Titan Yellow (TY) and Methyl Orange (MO) dyes at room temperature in aqueous solution concentration of 20 ppm under UV-light irradiation. We observed that the TiO
2
-Fe
2
O
3
nanocomposite shows superior photocatalytic activity for TY dye compared to pure TiO
2
and Fe
2
O
3
. Rate constant (k) values of TiO
2
, Fe
2
O
3
and TiO
2
–Fe
2
O
3
for TY and MO are 0.0194, 0.0159, 0.04396 and 0.00931, 0.00772 0.0119 kmin
−1
respectively. The surface area and pore volume of TiO
2
-Fe
2
O
3
nanocomposite were found to be 71.56 m
2
/g and 0.076 cm
3
/g, respectively as revealed by BET studies. From the Barrett–Joyner–Halenda (BJH) plot, the mean pore diameter of TiO
2
-Fe
2
O
3
nanoparticles was found to be 2.43 nm. Further, the TiO
2
-Fe
2
O
3
nanocomposite showed good electrochemical behavior as an electrode material for supercapacitors when compared to pure TiO
2
and Fe
2
O
3
nanoparticles resulted in stable electrochemical performance with nearly 100% coulombic efficiency at a scan rate of 10 mV/s for 1000 cycles. Interestingly, the novelty of this work is that the designed supercapacitors showed stable electrochemical performance even at 1000
th
cycle, which might be useful for rechargeable supercapacitor applications. The electrochemical properties of the nanocomposites were compared by the data obtained by cyclic voltammograms, charge-discharge tests and electrochemical impedance spectroscopic studies. These results demonstrated that the TiO
2
-Fe
2
O
3
nanocomposite showed stable performance compared to TiO
2
and Fe
2
O
3
nanoparticles at current density of 5 Ag
−1
.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>31988344</pmid><doi>10.1038/s41598-020-58110-7</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-4692-444X</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Springer Nature OA Free Journals; Nature Free; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | 704/172/169 704/4111 Decolorization Dyes Electrochemistry Electrons Humanities and Social Sciences Irradiation multidisciplinary Nanocomposites Nanoparticles Photocatalysis Science Science (multidisciplinary) Titanium dioxide Ultraviolet radiation |
| title | Enhanced photocatalytic and electrochemical performance of TiO2-Fe2O3 nanocomposite: Its applications in dye decolorization and as supercapacitors |
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