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Enhanced visible light absorption and photocatalytic activity of [KNbO 3 ] 1−x [BaNi 0.5 Nb 0.5 O 3−δ ] x synthesized by sol–gel based Pechini method
Ba, Ni co-modified KNbO 3 nanocrystals (KBNNO) were synthesized by sol–gel based Pechini method. X-ray diffraction and Raman measurements reveals the phase transformation of KBNNO from orthorhombic to cubic phase with increasing doping ratio x . Particle sizes of KBNNO nanocrystals were measured to...
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| Published in: | RSC advances 2016, Vol.6 (85), p.82409-82416 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c179t-7aa86a3e08cd1544a24aabf3c68a4fb807ba6b46eb4db2e407a347044fdfc5f03 |
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| cites | cdi_FETCH-LOGICAL-c179t-7aa86a3e08cd1544a24aabf3c68a4fb807ba6b46eb4db2e407a347044fdfc5f03 |
| container_end_page | 82416 |
| container_issue | 85 |
| container_start_page | 82409 |
| container_title | RSC advances |
| container_volume | 6 |
| creator | Wu, Ping Wang, Guoming Chen, Ruizhi Guo, Yixin Ma, Xueming Jiang, Dongmei |
| description | Ba, Ni co-modified KNbO
3
nanocrystals (KBNNO) were synthesized by sol–gel based Pechini method. X-ray diffraction and Raman measurements reveals the phase transformation of KBNNO from orthorhombic to cubic phase with increasing doping ratio
x
. Particle sizes of KBNNO nanocrystals were measured to range from 50 nm to 200 nm by scanning electron microscopy. X-ray photoelectron spectroscopy and electron dispersive X-ray elemental analysis reveal the elemental composition of KBNNO samples. Ultraviolet-visible-near infrared optical absorption spectra of KBNNO show enhanced visible light absorption compared with pure KNbO
3
synthesized under the same conditions. Photocatalytic activity evaluation displays an enhanced visible light photocatalytic activity of KBNNO in degrading methylene blue in comparison with KNbO
3
and P25 TiO
2
. Notably, KBNNO with
x
= 0.2 displays the greatest photoreactivity compared with KNbO
3
and P25 TiO
2
. The mechanism responsible for the enhancement of visible light absorption by Ni
2+
in KBNNO was discussed, highlighting the crucial role that Ni
2+
ions have played in the sub-energy levels of KBNNO. |
| doi_str_mv | 10.1039/C6RA15288K |
| format | article |
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3
nanocrystals (KBNNO) were synthesized by sol–gel based Pechini method. X-ray diffraction and Raman measurements reveals the phase transformation of KBNNO from orthorhombic to cubic phase with increasing doping ratio
x
. Particle sizes of KBNNO nanocrystals were measured to range from 50 nm to 200 nm by scanning electron microscopy. X-ray photoelectron spectroscopy and electron dispersive X-ray elemental analysis reveal the elemental composition of KBNNO samples. Ultraviolet-visible-near infrared optical absorption spectra of KBNNO show enhanced visible light absorption compared with pure KNbO
3
synthesized under the same conditions. Photocatalytic activity evaluation displays an enhanced visible light photocatalytic activity of KBNNO in degrading methylene blue in comparison with KNbO
3
and P25 TiO
2
. Notably, KBNNO with
x
= 0.2 displays the greatest photoreactivity compared with KNbO
3
and P25 TiO
2
. The mechanism responsible for the enhancement of visible light absorption by Ni
2+
in KBNNO was discussed, highlighting the crucial role that Ni
2+
ions have played in the sub-energy levels of KBNNO.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/C6RA15288K</identifier><language>eng</language><subject>Catalytic activity ; Displays ; Light absorption ; Photocatalysis ; Potassium niobates ; Sol gel process ; Titanium dioxide ; X-rays</subject><ispartof>RSC advances, 2016, Vol.6 (85), p.82409-82416</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c179t-7aa86a3e08cd1544a24aabf3c68a4fb807ba6b46eb4db2e407a347044fdfc5f03</citedby><cites>FETCH-LOGICAL-c179t-7aa86a3e08cd1544a24aabf3c68a4fb807ba6b46eb4db2e407a347044fdfc5f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Wu, Ping</creatorcontrib><creatorcontrib>Wang, Guoming</creatorcontrib><creatorcontrib>Chen, Ruizhi</creatorcontrib><creatorcontrib>Guo, Yixin</creatorcontrib><creatorcontrib>Ma, Xueming</creatorcontrib><creatorcontrib>Jiang, Dongmei</creatorcontrib><title>Enhanced visible light absorption and photocatalytic activity of [KNbO 3 ] 1−x [BaNi 0.5 Nb 0.5 O 3−δ ] x synthesized by sol–gel based Pechini method</title><title>RSC advances</title><description>Ba, Ni co-modified KNbO
3
nanocrystals (KBNNO) were synthesized by sol–gel based Pechini method. X-ray diffraction and Raman measurements reveals the phase transformation of KBNNO from orthorhombic to cubic phase with increasing doping ratio
x
. Particle sizes of KBNNO nanocrystals were measured to range from 50 nm to 200 nm by scanning electron microscopy. X-ray photoelectron spectroscopy and electron dispersive X-ray elemental analysis reveal the elemental composition of KBNNO samples. Ultraviolet-visible-near infrared optical absorption spectra of KBNNO show enhanced visible light absorption compared with pure KNbO
3
synthesized under the same conditions. Photocatalytic activity evaluation displays an enhanced visible light photocatalytic activity of KBNNO in degrading methylene blue in comparison with KNbO
3
and P25 TiO
2
. Notably, KBNNO with
x
= 0.2 displays the greatest photoreactivity compared with KNbO
3
and P25 TiO
2
. The mechanism responsible for the enhancement of visible light absorption by Ni
2+
in KBNNO was discussed, highlighting the crucial role that Ni
2+
ions have played in the sub-energy levels of KBNNO.</description><subject>Catalytic activity</subject><subject>Displays</subject><subject>Light absorption</subject><subject>Photocatalysis</subject><subject>Potassium niobates</subject><subject>Sol gel process</subject><subject>Titanium dioxide</subject><subject>X-rays</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpNkU1KxEAQhYMoKDobT1BLEaLdSaeTLHXwjxlmRHQ1SKjudExLJh3TPWJcuXStW4_hOTzEnMT4A1qbV9T7qLd4nrdNyR4lYbo_5BcHNAqSZLTibQSEcT8gPF39t697A2tvST88ogGnG97bUV1iLVUO99pqUSmo9E3pAIU1beO0qQHrHJrSOCPRYdU5LQGl0_fadWAKmI0mYgohXANdPr88wOwQJxrIXgQT8S292Rsf7z3xALarXamsfuwTRQfWVMun1xtVgUDbn86VLHWtYa5cafItb63AyqrBr256V8dHl8NTfzw9ORsejH1J49T5MWLCMVQkkTmNGMOAIYoilDxBVoiExAK5YFwJlotAMRJjyGLCWJEXMipIuOnt_PxtWnO3UNZlc22lqiqslVnYjCYsilOSJkGP7v6gsjXWtqrImlbPse0ySrKvFrK_FsJPMdJ80Q</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>Wu, Ping</creator><creator>Wang, Guoming</creator><creator>Chen, Ruizhi</creator><creator>Guo, Yixin</creator><creator>Ma, Xueming</creator><creator>Jiang, Dongmei</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>2016</creationdate><title>Enhanced visible light absorption and photocatalytic activity of [KNbO 3 ] 1−x [BaNi 0.5 Nb 0.5 O 3−δ ] x synthesized by sol–gel based Pechini method</title><author>Wu, Ping ; Wang, Guoming ; Chen, Ruizhi ; Guo, Yixin ; Ma, Xueming ; Jiang, Dongmei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c179t-7aa86a3e08cd1544a24aabf3c68a4fb807ba6b46eb4db2e407a347044fdfc5f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Catalytic activity</topic><topic>Displays</topic><topic>Light absorption</topic><topic>Photocatalysis</topic><topic>Potassium niobates</topic><topic>Sol gel process</topic><topic>Titanium dioxide</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Ping</creatorcontrib><creatorcontrib>Wang, Guoming</creatorcontrib><creatorcontrib>Chen, Ruizhi</creatorcontrib><creatorcontrib>Guo, Yixin</creatorcontrib><creatorcontrib>Ma, Xueming</creatorcontrib><creatorcontrib>Jiang, Dongmei</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Ping</au><au>Wang, Guoming</au><au>Chen, Ruizhi</au><au>Guo, Yixin</au><au>Ma, Xueming</au><au>Jiang, Dongmei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced visible light absorption and photocatalytic activity of [KNbO 3 ] 1−x [BaNi 0.5 Nb 0.5 O 3−δ ] x synthesized by sol–gel based Pechini method</atitle><jtitle>RSC advances</jtitle><date>2016</date><risdate>2016</risdate><volume>6</volume><issue>85</issue><spage>82409</spage><epage>82416</epage><pages>82409-82416</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>Ba, Ni co-modified KNbO
3
nanocrystals (KBNNO) were synthesized by sol–gel based Pechini method. X-ray diffraction and Raman measurements reveals the phase transformation of KBNNO from orthorhombic to cubic phase with increasing doping ratio
x
. Particle sizes of KBNNO nanocrystals were measured to range from 50 nm to 200 nm by scanning electron microscopy. X-ray photoelectron spectroscopy and electron dispersive X-ray elemental analysis reveal the elemental composition of KBNNO samples. Ultraviolet-visible-near infrared optical absorption spectra of KBNNO show enhanced visible light absorption compared with pure KNbO
3
synthesized under the same conditions. Photocatalytic activity evaluation displays an enhanced visible light photocatalytic activity of KBNNO in degrading methylene blue in comparison with KNbO
3
and P25 TiO
2
. Notably, KBNNO with
x
= 0.2 displays the greatest photoreactivity compared with KNbO
3
and P25 TiO
2
. The mechanism responsible for the enhancement of visible light absorption by Ni
2+
in KBNNO was discussed, highlighting the crucial role that Ni
2+
ions have played in the sub-energy levels of KBNNO.</abstract><doi>10.1039/C6RA15288K</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2046-2069 |
| ispartof | RSC advances, 2016, Vol.6 (85), p.82409-82416 |
| issn | 2046-2069 2046-2069 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1845790982 |
| source | Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list) |
| subjects | Catalytic activity Displays Light absorption Photocatalysis Potassium niobates Sol gel process Titanium dioxide X-rays |
| title | Enhanced visible light absorption and photocatalytic activity of [KNbO 3 ] 1−x [BaNi 0.5 Nb 0.5 O 3−δ ] x synthesized by sol–gel based Pechini method |
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