51
|
Mei S, Gao J, Zhang Y, Yang J, Wu Y, Wang X, Zhao R, Zhai X, Hao C, Li R, Yan J. Enhanced visible light photocatalytic hydrogen evolution over porphyrin hybridized graphitic carbon nitride. J Colloid Interface Sci 2017; 506:58-65. [DOI: 10.1016/j.jcis.2017.07.030] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/06/2017] [Accepted: 07/08/2017] [Indexed: 12/20/2022]
|
52
|
Wang A, Yang H, Song T, Sun Q, Liu H, Wang T, Zeng H. Plasmon mediated Fe-O in an octahedral site of cuprospinel by Cu NPs for photocatalytic hydrogen evolution. NANOSCALE 2017; 9:15760-15765. [PMID: 29018857 DOI: 10.1039/c7nr06217f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cu NPs (copper nanoparticles) were synthesized in situ on the surface of CuFe2O4 (cuprospinel). The enhancement of the separation efficiency of photogenerated e-/h+ and the catalytic quantum efficiency showed that the LSPR (local surface plasmon resonance) of Cu NPs facilitated the photocatalytic reaction activity of CuFe2O4. And due to the fact that CuFe2O4 was constructed with Cu-O in the tetrahedral site and Fe-O in the octahedral site, the results of DTG and Raman spectra after HER (hydrogen evolution reaction) displayed that the phase change of Fe-O in the octahedral site of CuFe2O4 took place during the HER process, and along with the peak of Fe2+ in XPS spectra after HER, which indicated that light activated Fe-O in the octahedral site was responsible for the photocatalytic process.
Collapse
Affiliation(s)
- An Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
| | | | | | | | | | | | | |
Collapse
|
53
|
Sun M, Zeng Q, Zhao X, Shao Y, Ji P, Wang C, Yan T, Du B. Fabrication of novel g-C 3N 4 nanocrystals decorated Ag 3PO 4 hybrids: Enhanced charge separation and excellent visible-light driven photocatalytic activity. JOURNAL OF HAZARDOUS MATERIALS 2017; 339:9-21. [PMID: 28609728 DOI: 10.1016/j.jhazmat.2017.06.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/30/2017] [Accepted: 06/02/2017] [Indexed: 06/07/2023]
Abstract
Graphitic carbon nitride (g-C3N4) nanocrystals (NCs) decorated Ag3PO4 hybrids were synthesized by a facile method. The obtained samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), transmission electron microscope (TEM), and UV-vis diffuse reflectance spectra (DRS). The SEM and TEM images showed that the as-prepared Ag3PO4 were composed of particles with diameters of 200-500nm, while the obtained nanocrystalline g-C3N4 were composed of smaller particles with average diameter of 10nm. For nanocrystalline g-C3N4/Ag3PO4 hybrids, the particle surfaces of Ag3PO4 were decorated with numerous g-C3N4 NCs, result in a larger contact area between g-C3N4 and Ag3PO4. The photocatalytic performances were evaluated by decomposing MO, phenol, bisphenol A, and RhB under visible light. Compared with Ag3PO4 and g-C3N4, the g-C3N4/Ag3PO4 hybrid (mass ratio=1:4) exhibited the best activity, which was much higher than that of bulk-g-C3N4/Ag3PO4 composite under the same conditions. The enhanced activities should be mainly ascribed to the enhanced separation efficiency of photo-generated carriers, which was proved by the photoluminescence (PL) spectra measurement. Controlled experiments proved that O2- and h+ played the chief role in the degradation process. A possible Z-scheme degradation mechanism of organic contaminant over g-C3N4/Ag3PO4 hybrid was proposed.
Collapse
Affiliation(s)
- Meng Sun
- School of Resources and Environment, University of Jinan, Jinan, 250022, PR China; State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou, 350116, PR China
| | - Qi Zeng
- School of Resources and Environment, University of Jinan, Jinan, 250022, PR China
| | - Xia Zhao
- School of Resources and Environment, University of Jinan, Jinan, 250022, PR China
| | - Yu Shao
- State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou, 350116, PR China
| | - Pengge Ji
- School of Resources and Environment, University of Jinan, Jinan, 250022, PR China
| | - Changqian Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Photocatalysis, Fuzhou University, Fuzhou, 350116, PR China
| | - Tao Yan
- School of Resources and Environment, University of Jinan, Jinan, 250022, PR China
| | - Bin Du
- School of Resources and Environment, University of Jinan, Jinan, 250022, PR China.
| |
Collapse
|
54
|
In situ plasmonic Au nanoparticle anchored nickel ferrite: An efficient plasmonic photocatalyst for fluorescein-sensitized hydrogen evolution under visible light irradiation. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.06.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
55
|
Kaippamangalath N, Gopalakrishnapanicker U, Shiju E, Chandrasekharan K. Optoelectrical, morphological and mechanical features of nitrophenyl supported poly(1,3,4-oxadiazole)s and their nanocomposites with TiO 2. RSC Adv 2016. [DOI: 10.1039/c6ra22131a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Charge transfer phenomenon and redox behaviour, of PPNO/PNPPO nanocomposites, triggered by TiO2 nanoparticles.
Collapse
Affiliation(s)
- Nimisha Kaippamangalath
- Polymer Science and Technology Laboratory
- Department of Chemistry
- National Institute of Technology
- Calicut-673601
- India
| | | | - E. Shiju
- Laser and Nonlinear Optics Laboratory
- Department of Physics
- National Institute of Technology
- Calicut-673601
- India
| | - K. Chandrasekharan
- Laser and Nonlinear Optics Laboratory
- Department of Physics
- National Institute of Technology
- Calicut-673601
- India
| |
Collapse
|
56
|
An X, Wen Y, Almujil A, Cheng D, Li J, Jia X, Zou J, Ni Y. Nano-fibrillated cellulose (NFC) as versatile carriers of TiO2 nanoparticles (TNPs) for photocatalytic hydrogen generation. RSC Adv 2016. [DOI: 10.1039/c6ra21042b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nano-fibrillated cellulose (NFC), an abundant natural biomacromolecule, can have many applications, such as support/carrier for nanoparticles, due to its unique properties.
Collapse
Affiliation(s)
- Xingye An
- Tianjin Key Laboratory of Pulp and Paper
- Tianjin University of Science and Technology
- Tianjin 300457
- China
- Department of Chemical Engineering
| | - Yangbing Wen
- Tianjin Key Laboratory of Pulp and Paper
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Abdullah Almujil
- Department of Chemical Engineering
- University of New Brunswick
- Fredericton
- Canada
| | - Dong Cheng
- Tianjin Key Laboratory of Pulp and Paper
- Tianjin University of Science and Technology
- Tianjin 300457
- China
- Department of Chemical Engineering
| | - Jianguo Li
- Tianjin Key Laboratory of Pulp and Paper
- Tianjin University of Science and Technology
- Tianjin 300457
- China
| | - Xu Jia
- Key Laboratory for Green Chemical Technology of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jijun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yonghao Ni
- Tianjin Key Laboratory of Pulp and Paper
- Tianjin University of Science and Technology
- Tianjin 300457
- China
- Department of Chemical Engineering
| |
Collapse
|