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Morra E, Maurelli S, Chiesa M, Giamello E. Rational Design of Engineered Multifunctional Heterogeneous Catalysts. The Role of Advanced EPR Techniques. Top Catal 2015. [DOI: 10.1007/s11244-015-0418-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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2
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Ruiz Preciado MA, Kassiba A, Morales-Acevedo A, Makowska-Janusik M. Vibrational and electronic peculiarities of NiTiO3 nanostructures inferred from first principle calculations. RSC Adv 2015. [DOI: 10.1039/c4ra16400h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structural, electronic and vibrational properties of nanostructured (NiTiO3)n clusters were calculated by numerical models based on DFT and semi-empirical quantum chemistry codes.
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Affiliation(s)
- M. A. Ruiz Preciado
- Institute of Physics
- Jan Dlugosz University in Czestochowa
- 42200 Czestochowa
- Poland
- Institute of Molecules and Materials of Le Mans
| | - A. Kassiba
- Institute of Molecules and Materials of Le Mans
- Université du Maine
- 72085 Le Mans
- France
| | | | - M. Makowska-Janusik
- Institute of Physics
- Jan Dlugosz University in Czestochowa
- 42200 Czestochowa
- Poland
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4
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Guo M, Feng Z, Hofmann JP, Weckhuysen BM, Fan F, Li C. Synthesis and Morphology Control of AM-6 Nanofibers with Tailored -V-O-V- Intermediates. Chemistry 2013; 19:14200-4. [DOI: 10.1002/chem.201301812] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Indexed: 11/09/2022]
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5
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Guo M, Feng Z, Li G, Hofmann JP, Pidko EA, Magusin PCMM, Guo Q, Weckhuysen BM, Hensen EJM, Fan F, Li C. “Extracting” the Key Fragment in ETS-10 Crystallization and Its Application in AM-6 Assembly. Chemistry 2012; 18:12078-84. [DOI: 10.1002/chem.201200875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 05/16/2012] [Indexed: 11/06/2022]
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6
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Su J, Xiong G, Zhou J, Liu W, Zhou D, Wang G, Wang X, Guo H. Amorphous Ti species in titanium silicalite-1: Structural features, chemical properties, and inactivation with sulfosalt. J Catal 2012. [DOI: 10.1016/j.jcat.2011.12.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Jeong NC, Lim H, Cheong H, Yoon KB. Distribution Pattern of Length, Length Uniformity, and Density of TiO32−Quantum Wires in an ETS-10 Crystal Revealed by Laser-Scanning Confocal Polarized Micro-Raman Spectroscopy. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102846] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Jeong NC, Lim H, Cheong H, Yoon KB. Distribution Pattern of Length, Length Uniformity, and Density of TiO32−Quantum Wires in an ETS-10 Crystal Revealed by Laser-Scanning Confocal Polarized Micro-Raman Spectroscopy. Angew Chem Int Ed Engl 2011; 50:8697-701. [DOI: 10.1002/anie.201102846] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Indexed: 11/06/2022]
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9
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Jeong NC, Lee YJ, Park JH, Lim H, Shin CH, Cheong H, Yoon KB. New Insights into ETS-10 and Titanate Quantum Wire: A Comprehensive Characterization. J Am Chem Soc 2009; 131:13080-92. [DOI: 10.1021/ja903638v] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nak Cheon Jeong
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
| | - Young Ju Lee
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
| | - Jung-Hyun Park
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
| | - Hyunjin Lim
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
| | - Chae-Ho Shin
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
| | - Hyeonsik Cheong
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
| | - Kyung Byung Yoon
- Center for Nano Materials, Departments of Chemistry and Physics, Program of Integrated Biotechnology, Sogang University, Seoul 121−742, Korea, and Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 361−763, Korea
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Pavel CC, Zibrowius B, Löffler E, Schmidt W. On the influence of ion exchange on the local structure of the titanosilicate ETS-10. Phys Chem Chem Phys 2007; 9:3440-6. [PMID: 17664968 DOI: 10.1039/b701773a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of ion exchange with different monovalent cations (NH(4)(+), K(+), Na(+) and Cs(+)) on the local structure of the titanosilicate ETS-10 has been studied by (29)Si MAS NMR and Raman spectroscopy. Although X-ray diffraction shows no significant influence of ion exchange on the long range order, ammonium exchange is found to result in substantial damage to the local structure. Ion exchange experiments with alkali cations under significantly more acidic conditions clearly show that the structural damage brought about by ammonium exchange is not caused by the low pH of the exchange solution. The exchange with potassium and caesium ions also leads to significant changes in the (29)Si NMR and Raman spectra. However, these changes can largely be reversed by sodium back-exchange.
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Affiliation(s)
- Claudiu C Pavel
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470, Mülheim an der Ruhr, Germany
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Xu T, Zhao X, Zhu Y. Synthesis of Hexagonal BaTa2O6 Nanorods and Influence of Defects on the Photocatalytic Activity. J Phys Chem B 2006; 110:25825-32. [PMID: 17181227 DOI: 10.1021/jp065307k] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hexagonal barium tantalate (BaTa2O6) nanorods were synthesized by a hydrothermal method based on the reaction of concentrated Ba(OH)2 solution and Ta2O5. BaTa2O6 samples show a uniform cylindrical structure with diameters of 5-30 nm and the lengths of 50-200 nm. The formation of BaTa2O6 nanorods follows a dissolution-recrystallization mechanism and is governed by hydrothermal temperature and time. BaTa2O6 nanorod samples prepared at 270 degrees C for 72 h have exhibited the highest photocatalytic activity in the degradation of Rhodamine B (RhB) in aqueous solution under UV radiation. Hydrogen-related defects were detected in BaTa2O6 nanorods, which originate from the oxygen octahedron. The number of defects was dependent on the hydrothermal temperature, and the photocatalytic activities of BaTa2O6 nanorods increase with the decrease of defect amounts. On the basis of the experiment results, the difference in photocatalytic activities for samples is mainly caused by lattice defects, which can act as inactivation centers.
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Affiliation(s)
- Tongguang Xu
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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12
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Lv L, Tsoi G, Zhao XS. Uptake Equilibria and Mechanisms of Heavy Metal Ions on Microporous Titanosilicate ETS-10. Ind Eng Chem Res 2004. [DOI: 10.1021/ie0498044] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. Lv
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 10 Kent Ridge, Singapore 119260, Singapore
| | - G. Tsoi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 10 Kent Ridge, Singapore 119260, Singapore
| | - X. S. Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 10 Kent Ridge, Singapore 119260, Singapore
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