Dramatic improvement of photocatalytic activity for N-doped Bi2O3/g-C3N4 composites
N-doped Bi2O3/g-C3N4 composite photocatalysts were prepared via a cost-effective and eco-friendly ultrasonic dispersion method. It was shown that N-doped Bi2O3 nanoparticles have been perfectly coated by thin g-C3N4 layers. Under visible-light irradiation, the optimum photocatalytic activity of the...
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| Veröffentlicht in: | Materials letters 2015-12, Vol.161, p.640-643 |
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| creator | Xue, Song Hou, Xiaoyi Xie, Wenhe Wei, Xiucheng He, Deyan |
| description | N-doped Bi2O3/g-C3N4 composite photocatalysts were prepared via a cost-effective and eco-friendly ultrasonic dispersion method. It was shown that N-doped Bi2O3 nanoparticles have been perfectly coated by thin g-C3N4 layers. Under visible-light irradiation, the optimum photocatalytic activity of the composite with 66.7wt% of g-C3N4 is almost 4.6 times as high as that of pure g-C3N4 and 8.2 times of Bi2O3, and the RhB degradation efficiency can reach 94.4% in 15min. The dramatically improved performance of the composite can be attributed to an enhancement of visible-light absorption and a synergistic effect of N-doped Bi2O3 nanoparticles and g-C3N4 coatings.
•A cost-effective and eco-friendly ultrasonic dispersion method was used to prepare N-doped Bi2O3/g-C3N4 composite photocatalysts.•A dramatic improvement of photocatalytic activity for the composite photocatalysts was observed.•A proper mechanism for the improvement photocatalytic activity was demonstrated. |
| doi_str_mv | 10.1016/j.matlet.2015.09.067 |
| format | Article |
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•A cost-effective and eco-friendly ultrasonic dispersion method was used to prepare N-doped Bi2O3/g-C3N4 composite photocatalysts.•A dramatic improvement of photocatalytic activity for the composite photocatalysts was observed.•A proper mechanism for the improvement photocatalytic activity was demonstrated.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2015.09.067</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Coatings ; Composite materials ; Dispersions ; Nanoparticles ; Optimization ; Photocatalysis ; Photocatalysts ; Semiconductors ; Synergistic effect ; Thin films ; Ultrasonic dispersion ; Visible light</subject><ispartof>Materials letters, 2015-12, Vol.161, p.640-643</ispartof><rights>2015 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c339t-66f4f937cbbb70f6a00851369d7ec0e774fb11c65b8b7eb4c36ae9f3728d3d83</citedby><cites>FETCH-LOGICAL-c339t-66f4f937cbbb70f6a00851369d7ec0e774fb11c65b8b7eb4c36ae9f3728d3d83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X15305802$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Xue, Song</creatorcontrib><creatorcontrib>Hou, Xiaoyi</creatorcontrib><creatorcontrib>Xie, Wenhe</creatorcontrib><creatorcontrib>Wei, Xiucheng</creatorcontrib><creatorcontrib>He, Deyan</creatorcontrib><title>Dramatic improvement of photocatalytic activity for N-doped Bi2O3/g-C3N4 composites</title><title>Materials letters</title><description>N-doped Bi2O3/g-C3N4 composite photocatalysts were prepared via a cost-effective and eco-friendly ultrasonic dispersion method. It was shown that N-doped Bi2O3 nanoparticles have been perfectly coated by thin g-C3N4 layers. Under visible-light irradiation, the optimum photocatalytic activity of the composite with 66.7wt% of g-C3N4 is almost 4.6 times as high as that of pure g-C3N4 and 8.2 times of Bi2O3, and the RhB degradation efficiency can reach 94.4% in 15min. The dramatically improved performance of the composite can be attributed to an enhancement of visible-light absorption and a synergistic effect of N-doped Bi2O3 nanoparticles and g-C3N4 coatings.
•A cost-effective and eco-friendly ultrasonic dispersion method was used to prepare N-doped Bi2O3/g-C3N4 composite photocatalysts.•A dramatic improvement of photocatalytic activity for the composite photocatalysts was observed.•A proper mechanism for the improvement photocatalytic activity was demonstrated.</description><subject>Coatings</subject><subject>Composite materials</subject><subject>Dispersions</subject><subject>Nanoparticles</subject><subject>Optimization</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Semiconductors</subject><subject>Synergistic effect</subject><subject>Thin films</subject><subject>Ultrasonic dispersion</subject><subject>Visible light</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EEqXwDxgysiQ910kcL0hQPqWqHejAZjnOGVwldbDdSv33pAoz0w33Pq_uHkJuKWQUaDnbZp2KLcZsDrTIQGRQ8jMyoRVnaS64OCeTIcbTgvPPS3IVwhYAcgH5hHw8eTXAVie26707YIe7mDiT9N8uOq2iao-nrdLRHmw8Jsb5ZJU2rscmebTzNZt9pQu2yhPtut4FGzFckwuj2oA3f3NKNi_Pm8Vbuly_vi8elqlmTMS0LE1uBOO6rmsOplQAVUFZKRqOGpDz3NSU6rKoq5pjnWtWKhSG8XnVsKZiU3I31g53_-wxRNnZoLFt1Q7dPkjKOTAKBSuGaD5GtXcheDSy97ZT_igpyJNCuZWjQnlSKEHIQeGA3Y8YDl8cLHoZtMWdxsZ61FE2zv5f8Au-pXxg</recordid><startdate>20151215</startdate><enddate>20151215</enddate><creator>Xue, Song</creator><creator>Hou, Xiaoyi</creator><creator>Xie, Wenhe</creator><creator>Wei, Xiucheng</creator><creator>He, Deyan</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20151215</creationdate><title>Dramatic improvement of photocatalytic activity for N-doped Bi2O3/g-C3N4 composites</title><author>Xue, Song ; Hou, Xiaoyi ; Xie, Wenhe ; Wei, Xiucheng ; He, Deyan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c339t-66f4f937cbbb70f6a00851369d7ec0e774fb11c65b8b7eb4c36ae9f3728d3d83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Coatings</topic><topic>Composite materials</topic><topic>Dispersions</topic><topic>Nanoparticles</topic><topic>Optimization</topic><topic>Photocatalysis</topic><topic>Photocatalysts</topic><topic>Semiconductors</topic><topic>Synergistic effect</topic><topic>Thin films</topic><topic>Ultrasonic dispersion</topic><topic>Visible light</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xue, Song</creatorcontrib><creatorcontrib>Hou, Xiaoyi</creatorcontrib><creatorcontrib>Xie, Wenhe</creatorcontrib><creatorcontrib>Wei, Xiucheng</creatorcontrib><creatorcontrib>He, Deyan</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xue, Song</au><au>Hou, Xiaoyi</au><au>Xie, Wenhe</au><au>Wei, Xiucheng</au><au>He, Deyan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dramatic improvement of photocatalytic activity for N-doped Bi2O3/g-C3N4 composites</atitle><jtitle>Materials letters</jtitle><date>2015-12-15</date><risdate>2015</risdate><volume>161</volume><spage>640</spage><epage>643</epage><pages>640-643</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>N-doped Bi2O3/g-C3N4 composite photocatalysts were prepared via a cost-effective and eco-friendly ultrasonic dispersion method. It was shown that N-doped Bi2O3 nanoparticles have been perfectly coated by thin g-C3N4 layers. Under visible-light irradiation, the optimum photocatalytic activity of the composite with 66.7wt% of g-C3N4 is almost 4.6 times as high as that of pure g-C3N4 and 8.2 times of Bi2O3, and the RhB degradation efficiency can reach 94.4% in 15min. The dramatically improved performance of the composite can be attributed to an enhancement of visible-light absorption and a synergistic effect of N-doped Bi2O3 nanoparticles and g-C3N4 coatings.
•A cost-effective and eco-friendly ultrasonic dispersion method was used to prepare N-doped Bi2O3/g-C3N4 composite photocatalysts.•A dramatic improvement of photocatalytic activity for the composite photocatalysts was observed.•A proper mechanism for the improvement photocatalytic activity was demonstrated.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2015.09.067</doi><tpages>4</tpages></addata></record> |
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| ispartof | Materials letters, 2015-12, Vol.161, p.640-643 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Coatings Composite materials Dispersions Nanoparticles Optimization Photocatalysis Photocatalysts Semiconductors Synergistic effect Thin films Ultrasonic dispersion Visible light |
| title | Dramatic improvement of photocatalytic activity for N-doped Bi2O3/g-C3N4 composites |
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