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Dou X, Li Y, Kang R, Lian H, Li Z. La 2O 2CO 3:Tb 3+ one-dimensional nanorod with green persistent luminescence. RSC Adv 2020; 10:17180-17184. [PMID: 35521455 PMCID: PMC9053446 DOI: 10.1039/d0ra01926g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 04/14/2020] [Indexed: 11/23/2022] Open
Abstract
Trivalent terbium-doped oxycarbonate (La2O2CO3:1%Tb3+) one-dimensional nanorods are synthesized via a facile precipitation method. The average length of La2O2CO3:1%Tb3+ nanorods is 184.5 nm. Doping Tb3+ ions led to several visible emission peaks at 486 nm, 542 nm, and 587 nm under excitation of 258 nm wavelength light. The green afterglow at 542 nm can be detected almost 600 s after ceasing the UV-light irradiation. It can be calculated that the La2O2CO3:1%Tb3+ sample has one shallow trap depth (E = 0.848 eV) by measuring the thermoluminescence. All the results indicate that a simple precipitation method can synthesize a one-dimensional nanorod with green persistent luminescence. Trivalent terbium-doped oxycarbonate (La2O2CO3:1%Tb3+) one-dimensional nanorods are synthesized via a facile precipitation method.![]()
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Affiliation(s)
- Xiaojing Dou
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology Guangzhou 510006 China
| | - Yang Li
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology Guangzhou 510006 China
| | - Ru Kang
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology Guangzhou 510006 China
| | - Huiwang Lian
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology Guangzhou 510006 China
| | - Zhenzhang Li
- College of Mathematics and Systems Science, Guangdong Polytechnic Normal University No. 293, Zhongshan Avenue West, Tianhe District Guangzhou 510665 China
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ZHENG JN, AN K, WANG JM, LI J, LIU Y. Direct synthesis of ethanol via CO2 hydrogenation over the Co/La-Ga-O composite oxide catalyst. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/s1872-5813(19)30031-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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K-Modulated Co Nanoparticles Trapped in La-Ga-O as Superior Catalysts for Higher Alcohols Synthesis from Syngas. Catalysts 2019. [DOI: 10.3390/catal9030218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Owing to the outstanding catalytic performance for higher alcohol synthesis, Ga-Co catalysts have attracted much attention. In view of their unsatisfactory stability and alcohol selectivity, herein, K-modulated Co nanoparticles trapped in La-Ga-O catalysts were prepared by the reduction of La1−xKxCo0.65Ga0.35O3 perovskite precursor. Benefiting from the atomic dispersion of all the elements in the precursor, during the reduction of La1−xKxCo0.65Ga0.35O3, Co nanoparticles could be confined into the K-modified La-Ga-O composite oxides, and the confinement of La-Ga-O could improve the anti-sintering performance of Co nanoparticles. In addition, the addition of K modulated parts of La-Ga-O into La2O3, which ameliorated the anti-carbon deposition performance. Finally, the addition of K increased the dispersion of cobalt and provided more electron donors to metallic Co, resulting in a high activity and superior selectivity to higher alcohols. Benefiting from the above characteristics, the catalyst possesses excellent activity, good selectivity, and superior stability.
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Shukla K, Srivastava VC. Efficient Synthesis of Diethyl Carbonate from Propylene Carbonate and Ethanol Using Mg–La Catalysts: Characterization, Parametric, and Thermodynamic Analysis. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02080] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kartikeya Shukla
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Vimal Chandra Srivastava
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
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Guo S, Li S, Zhong H, Gong D, Wang J, Kang N, Zhang L, Liu G, Liu Y. Mixed Oxides Confined and Tailored Cobalt Nanocatalyst for Direct Ethanol Synthesis from Syngas: A Catalyst Designing by Using Perovskite-Type Oxide as the Precursor. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04336] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shaoxia Guo
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Shuangshuang Li
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Huixian Zhong
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Dandan Gong
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jiaming Wang
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Na Kang
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Lihong Zhang
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
| | - Guilong Liu
- College
of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, Henan, China
| | - Yuan Liu
- Tianjin
Key Laboratory of Applied Catalysis Science and Technology, School
of Chemical Engineering, Tianjin University, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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Surfactant-assisted sacrificial template-mediated synthesis, characterization and photoluminescent properties of $$\hbox {LaPO}_{4}:\hbox {Eu}^{3+}$$ LaPO 4 : Eu 3 + phosphor. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1296-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kaczmarek AM, Van Hecke K, Van Deun R. Nano- and micro-sized rare-earth carbonates and their use as precursors and sacrificial templates for the synthesis of new innovative materials. Chem Soc Rev 2015; 44:2032-59. [DOI: 10.1039/c4cs00433g] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Rare-earth carbonate nano- and micro-materials are reviewed, focusing on factors that influence the morphology and luminescence, as well as their applications as precursors and sacrificial templates for other materials.
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Affiliation(s)
- Anna M. Kaczmarek
- L3- Luminescent Lanthanide Lab
- Department of Inorganic and Physical Chemistry
- Ghent University
- Krijgslaan 281-S3
- Belgium
| | - Kristof Van Hecke
- XStruct
- Department of Inorganic and Physical Chemistry
- Ghent University
- Krijgslaan 281-S3
- Belgium
| | - Rik Van Deun
- L3- Luminescent Lanthanide Lab
- Department of Inorganic and Physical Chemistry
- Ghent University
- Krijgslaan 281-S3
- Belgium
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