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A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance
A series of hierarchical Ag 2 O-nanoparticle/TiO 2 -nanotube heterostructured nanocomposites with varied Ag 2 O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO...
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| Published in: | Cellulose (London) 2019-07, Vol.26 (11), p.6683-6700 |
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| creator | Lin, Zehao Lu, Yongxin Huang, Jianguo |
| description | A series of hierarchical Ag
2
O-nanoparticle/TiO
2
-nanotube heterostructured nanocomposites with varied Ag
2
O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO
2
nanotubes and fine Ag
2
O nanoparticles that anchored on the surfaces. The composites exhibited enhanced photocatalytic performances in degrading different organic pollutants under ultraviolet light irradiation. The optimal Ag
2
O-NP/TiO
2
-NT nanocomposites exhibited apparent rate constants of 0.62, 0.37 and 0.39 min
−1
in photocatalytic degrading methylene blue, Rhodamine B and norfloxacin, respectively; which were correspondingly 2.6, 2.2, and 1.4 times higher than those of the pure TiO
2
nanotubes; and 3.9, 9.3, and 5.6 folds higher than those of the pure Ag
2
O nanoparticles. It was demonstrated that the improved photocatalytic performances of the nanocomposites were attributed to the hierarchical nanotubular structures that inherited from the natural cellulose substances and the effective heterostructure between the titania and silver oxide phases derived from the unique structure. Hence, the close relationship between the cellulose derived structures and the photocatalytic performances of the nanocomposites were demonstrated. The related possible photocatalytic mechanism was revealed that the separation and transfer of the photogenerated electron–hole pairs was accelerated, and the superoxide radicals and reactive holes played a main role in the photocatalytic processes.
Graphic abstract |
| doi_str_mv | 10.1007/s10570-019-02573-z |
| format | article |
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2
O-nanoparticle/TiO
2
-nanotube heterostructured nanocomposites with varied Ag
2
O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO
2
nanotubes and fine Ag
2
O nanoparticles that anchored on the surfaces. The composites exhibited enhanced photocatalytic performances in degrading different organic pollutants under ultraviolet light irradiation. The optimal Ag
2
O-NP/TiO
2
-NT nanocomposites exhibited apparent rate constants of 0.62, 0.37 and 0.39 min
−1
in photocatalytic degrading methylene blue, Rhodamine B and norfloxacin, respectively; which were correspondingly 2.6, 2.2, and 1.4 times higher than those of the pure TiO
2
nanotubes; and 3.9, 9.3, and 5.6 folds higher than those of the pure Ag
2
O nanoparticles. It was demonstrated that the improved photocatalytic performances of the nanocomposites were attributed to the hierarchical nanotubular structures that inherited from the natural cellulose substances and the effective heterostructure between the titania and silver oxide phases derived from the unique structure. Hence, the close relationship between the cellulose derived structures and the photocatalytic performances of the nanocomposites were demonstrated. The related possible photocatalytic mechanism was revealed that the separation and transfer of the photogenerated electron–hole pairs was accelerated, and the superoxide radicals and reactive holes played a main role in the photocatalytic processes.
Graphic abstract</description><identifier>ISSN: 0969-0239</identifier><identifier>EISSN: 1572-882X</identifier><identifier>DOI: 10.1007/s10570-019-02573-z</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Bioorganic Chemistry ; Cellulose ; Ceramics ; Chemistry ; Chemistry and Materials Science ; Composites ; Glass ; Heterostructures ; Light irradiation ; Methylene blue ; Nanocomposites ; Nanoparticles ; Nanotubes ; Natural Materials ; Norfloxacin ; Organic Chemistry ; Original Research ; Performance enhancement ; Photocatalysis ; Photodegradation ; Physical Chemistry ; Pollutants ; Polymer Sciences ; Rate constants ; Rhodamine ; Structural hierarchy ; Sustainable Development ; Titanium dioxide ; Ultraviolet radiation</subject><ispartof>Cellulose (London), 2019-07, Vol.26 (11), p.6683-6700</ispartof><rights>Springer Nature B.V. 2019</rights><rights>Copyright Springer Nature B.V. 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-73c518abe7cc0127f40d494851d51e84bdfc5afb5ccaa868d56d35da2b4013523</citedby><cites>FETCH-LOGICAL-c356t-73c518abe7cc0127f40d494851d51e84bdfc5afb5ccaa868d56d35da2b4013523</cites><orcidid>0000-0001-6862-8118</orcidid></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>Lin, Zehao</creatorcontrib><creatorcontrib>Lu, Yongxin</creatorcontrib><creatorcontrib>Huang, Jianguo</creatorcontrib><title>A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance</title><title>Cellulose (London)</title><addtitle>Cellulose</addtitle><description>A series of hierarchical Ag
2
O-nanoparticle/TiO
2
-nanotube heterostructured nanocomposites with varied Ag
2
O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO
2
nanotubes and fine Ag
2
O nanoparticles that anchored on the surfaces. The composites exhibited enhanced photocatalytic performances in degrading different organic pollutants under ultraviolet light irradiation. The optimal Ag
2
O-NP/TiO
2
-NT nanocomposites exhibited apparent rate constants of 0.62, 0.37 and 0.39 min
−1
in photocatalytic degrading methylene blue, Rhodamine B and norfloxacin, respectively; which were correspondingly 2.6, 2.2, and 1.4 times higher than those of the pure TiO
2
nanotubes; and 3.9, 9.3, and 5.6 folds higher than those of the pure Ag
2
O nanoparticles. It was demonstrated that the improved photocatalytic performances of the nanocomposites were attributed to the hierarchical nanotubular structures that inherited from the natural cellulose substances and the effective heterostructure between the titania and silver oxide phases derived from the unique structure. Hence, the close relationship between the cellulose derived structures and the photocatalytic performances of the nanocomposites were demonstrated. The related possible photocatalytic mechanism was revealed that the separation and transfer of the photogenerated electron–hole pairs was accelerated, and the superoxide radicals and reactive holes played a main role in the photocatalytic processes.
Graphic abstract</description><subject>Bioorganic Chemistry</subject><subject>Cellulose</subject><subject>Ceramics</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Composites</subject><subject>Glass</subject><subject>Heterostructures</subject><subject>Light irradiation</subject><subject>Methylene blue</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>Nanotubes</subject><subject>Natural Materials</subject><subject>Norfloxacin</subject><subject>Organic Chemistry</subject><subject>Original Research</subject><subject>Performance enhancement</subject><subject>Photocatalysis</subject><subject>Photodegradation</subject><subject>Physical Chemistry</subject><subject>Pollutants</subject><subject>Polymer Sciences</subject><subject>Rate constants</subject><subject>Rhodamine</subject><subject>Structural hierarchy</subject><subject>Sustainable Development</subject><subject>Titanium dioxide</subject><subject>Ultraviolet radiation</subject><issn>0969-0239</issn><issn>1572-882X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKw0AUhgdRsFZfwNWA69i5ZHJZluINCt1UcDdMZk6alCQTZyZK-wg-tYkV3Lk6nPNfDnwI3VJyTwlJF54SkZKI0DwiTKQ8Op6hGRUpi7KMvZ2jGcmTSeL5Jbryfk8IyVNGZ-hriasanHK6qrVq8HLHNlGnOtsrF2rdwGJbb9jPJQwFYG3b3vo6ADbg6g8wuHS2xZ0KgxvjGppmaKwH7IfCB9VpwJ91qDB01bQY3Fc2WK2Cag5jP-7Blda1k3aNLkrVeLj5nXP0-viwXT1H683Ty2q5jjQXSYhSrgXNVAGp1oSytIyJifM4E9QICllcmFILVRZCa6WyJDMiMVwYxYqYUC4Yn6O7U2_v7PsAPsi9HVw3vpSMCUpzyjkZXezk0s5676CUvatb5Q6SEjkxlyfmcmQuf5jL4xjip5Afzd0O3F_1P6lvCaeIsw</recordid><startdate>20190730</startdate><enddate>20190730</enddate><creator>Lin, Zehao</creator><creator>Lu, Yongxin</creator><creator>Huang, Jianguo</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-6862-8118</orcidid></search><sort><creationdate>20190730</creationdate><title>A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance</title><author>Lin, Zehao ; Lu, Yongxin ; Huang, Jianguo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-73c518abe7cc0127f40d494851d51e84bdfc5afb5ccaa868d56d35da2b4013523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Bioorganic Chemistry</topic><topic>Cellulose</topic><topic>Ceramics</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Composites</topic><topic>Glass</topic><topic>Heterostructures</topic><topic>Light irradiation</topic><topic>Methylene blue</topic><topic>Nanocomposites</topic><topic>Nanoparticles</topic><topic>Nanotubes</topic><topic>Natural Materials</topic><topic>Norfloxacin</topic><topic>Organic Chemistry</topic><topic>Original Research</topic><topic>Performance enhancement</topic><topic>Photocatalysis</topic><topic>Photodegradation</topic><topic>Physical Chemistry</topic><topic>Pollutants</topic><topic>Polymer Sciences</topic><topic>Rate constants</topic><topic>Rhodamine</topic><topic>Structural hierarchy</topic><topic>Sustainable Development</topic><topic>Titanium dioxide</topic><topic>Ultraviolet radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Zehao</creatorcontrib><creatorcontrib>Lu, Yongxin</creatorcontrib><creatorcontrib>Huang, Jianguo</creatorcontrib><collection>CrossRef</collection><jtitle>Cellulose (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Zehao</au><au>Lu, Yongxin</au><au>Huang, Jianguo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance</atitle><jtitle>Cellulose (London)</jtitle><stitle>Cellulose</stitle><date>2019-07-30</date><risdate>2019</risdate><volume>26</volume><issue>11</issue><spage>6683</spage><epage>6700</epage><pages>6683-6700</pages><issn>0969-0239</issn><eissn>1572-882X</eissn><abstract>A series of hierarchical Ag
2
O-nanoparticle/TiO
2
-nanotube heterostructured nanocomposites with varied Ag
2
O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO
2
nanotubes and fine Ag
2
O nanoparticles that anchored on the surfaces. The composites exhibited enhanced photocatalytic performances in degrading different organic pollutants under ultraviolet light irradiation. The optimal Ag
2
O-NP/TiO
2
-NT nanocomposites exhibited apparent rate constants of 0.62, 0.37 and 0.39 min
−1
in photocatalytic degrading methylene blue, Rhodamine B and norfloxacin, respectively; which were correspondingly 2.6, 2.2, and 1.4 times higher than those of the pure TiO
2
nanotubes; and 3.9, 9.3, and 5.6 folds higher than those of the pure Ag
2
O nanoparticles. It was demonstrated that the improved photocatalytic performances of the nanocomposites were attributed to the hierarchical nanotubular structures that inherited from the natural cellulose substances and the effective heterostructure between the titania and silver oxide phases derived from the unique structure. Hence, the close relationship between the cellulose derived structures and the photocatalytic performances of the nanocomposites were demonstrated. The related possible photocatalytic mechanism was revealed that the separation and transfer of the photogenerated electron–hole pairs was accelerated, and the superoxide radicals and reactive holes played a main role in the photocatalytic processes.
Graphic abstract</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10570-019-02573-z</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0001-6862-8118</orcidid></addata></record> |
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| identifier | ISSN: 0969-0239 |
| ispartof | Cellulose (London), 2019-07, Vol.26 (11), p.6683-6700 |
| issn | 0969-0239 1572-882X |
| language | eng |
| recordid | cdi_proquest_journals_2251191330 |
| source | Springer Nature |
| subjects | Bioorganic Chemistry Cellulose Ceramics Chemistry Chemistry and Materials Science Composites Glass Heterostructures Light irradiation Methylene blue Nanocomposites Nanoparticles Nanotubes Natural Materials Norfloxacin Organic Chemistry Original Research Performance enhancement Photocatalysis Photodegradation Physical Chemistry Pollutants Polymer Sciences Rate constants Rhodamine Structural hierarchy Sustainable Development Titanium dioxide Ultraviolet radiation |
| title | A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance |
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