Toward High Performance 2D/2D Hybrid Photocatalyst by Electrostatic Assembly of Rationally Modified Carbon Nitride on Reduced Graphene Oxide.
| Title: | Toward High Performance 2D/2D Hybrid Photocatalyst by Electrostatic Assembly of Rationally Modified Carbon Nitride on Reduced Graphene Oxide. |
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| Authors: | Chen J; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.; Xu X; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.; Li T; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.; Pandiselvi K; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.; Wang J; Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China. |
| Source: | Scientific reports [Sci Rep] 2016 Nov 17; Vol. 6, pp. 37318. Date of Electronic Publication: 2016 Nov 17. |
| Publication Type: | Journal Article; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: London : Nature Publishing Group, copyright 2011- |
| Abstract: | Efficient metal-free visible photocatalysts with high stability are highly desired for sufficient utilization of solar energy. In this work, the popular carbon nitride (CN) photocatalyst is rationally modified by acid exfoliation of molecular grafted CN, achieving improved visible-light utilization and charge carriers mobility. Moreover, the modification process tuned the surface electrical property of CN, which enabled it to be readily coupled with the oppositely charged graphene oxide during the following photo-assisted electrostatic assembly. Detailed characterizations indicate the formation of well-contacted 2D/2D heterostructure with strong interfacial interaction between the modified CN nanosheets (CNX-NSs) and reduced graphene oxide (RGO). The optimized hybrid (with a RGO ratio of 20%) exhibits the best photocatalytic performance toward MB degradation, which is almost 12.5 and 7.0 times of CN under full spectrum and visible-light irradiation, respectively. In addition, the hybrid exhibits high stability after five successive cycles with no obvious change in efficiency. Unlike pure CNX-NSs, the dye decomposition mostly depends on the H2O2 generation by a two-electron process due to the electron reservoir property of RGO. Thus the enhancement in photocatalytic activity could be ascribed to the improved light utilization and increased charge transfer ability across the interface of CNX-NSs/RGO heterostructure. |
| References: | Nanoscale. 2015 Jan 7;7(1):15-37. (PMID: 25407808); ACS Appl Mater Interfaces. 2013 Apr 24;5(8):3085-93. (PMID: 23527869); Nano Lett. 2012 Sep 12;12 (9):4584-9. (PMID: 22894686); Chem Commun (Camb). 2015 Jan 18;51(5):858-61. (PMID: 25429376); Dalton Trans. 2014 May 7;43(17):6295-9. (PMID: 24626428); Nat Chem. 2014 Feb;7(2):166-70. (PMID: 25615671); ACS Appl Mater Interfaces. 2015 Dec 30;7(51):28231-43. (PMID: 26669327); Angew Chem Int Ed Engl. 2016 Jan 26;55(5):1830-4. (PMID: 26692105); Adv Mater. 2015 Apr 1;27(13):2150-76. (PMID: 25704586); J Am Chem Soc. 2014 Feb 5;136(5):1730-3. (PMID: 24432762); Adv Mater. 2013 May 7;25(17):2452-6. (PMID: 23450777); Chem Commun (Camb). 2016 Jan 11;52(3):453-6. (PMID: 26462975); Angew Chem Int Ed Engl. 2014 Oct 27;53(44):11926-30. (PMID: 25220601); Sci Rep. 2016 Jun 06;6:27385. (PMID: 27263659); Small. 2015 Aug 26;11(32):3985-94. (PMID: 25959808); J Hazard Mater. 2016 Aug 15;314:67-77. (PMID: 27107237); J Phys Chem B. 2006 May 4;110(17):8535-9. (PMID: 16640401); Chem Commun (Camb). 2012 Jun 21;48(49):6178-80. (PMID: 22588283); Adv Mater. 2013 Nov 20;25(43):6291-7. (PMID: 23996281); ACS Nano. 2010 Jan 26;4(1):380-6. (PMID: 20041631); J Phys Chem Lett. 2015 Mar 19;6(6):958-63. (PMID: 26262852); Chem Commun (Camb). 2015 Apr 28;51(33):7176-9. (PMID: 25811734); Adv Mater. 2015 Aug 19;27(31):4572-7. (PMID: 26149596); Environ Sci Pollut Res Int. 2015 Jan;22(2):870-81. (PMID: 24809496); Angew Chem Int Ed Engl. 2012 Mar 26;51(13):3183-7. (PMID: 22334504); Anal Chem. 2013 Jun 4;85(11):5595-9. (PMID: 23650957); J Hazard Mater. 2014 Mar 15;268:216-23. (PMID: 24509092); Chemistry. 2014 Jan 20;20(4):1176-85. (PMID: 24425678); J Am Chem Soc. 2013 Jan 9;135(1):18-21. (PMID: 23244197); Chem Soc Rev. 2014 Aug 7;43(15):5234-44. (PMID: 24841176); Small. 2014 Jun 25;10(12):2382-9. (PMID: 24596304); Small. 2013 Oct 11;9(19):3336-44. (PMID: 23630157); Dalton Trans. 2013 Jun 7;42(21):7604-13. (PMID: 23535886); Sci Rep. 2016 Mar 07;6:22808. (PMID: 26948968) |
| Entry Date(s): | Date Created: 20161118 Date Completed: 20180503 Latest Revision: 20181113 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC5112518 |
| DOI: | 10.1038/srep37318 |
| PMID: | 27853309 |
| Database: | MEDLINE |
Journal Article; Research Support, Non-U.S. Gov't