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Li L, Lu S, Cao W, Zhu Q, Li R, Wei Y, Yang S, Wang C. Band Gap Engineering and Lattice Distortion for Synergetic Tuning Optical Properties of NaNbO 3 toward Enhanced Piezo-photocatalytic Activity. Inorg Chem 2024; 63:11745-11756. [PMID: 38865684 DOI: 10.1021/acs.inorgchem.4c01306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Piezo-photocatalytic efficiency is severely constrained by the wide band gap and bad piezoelectric properties. Herein, La(Mn0.5Ni0.5)O3 was successfully introduced into NaNbO3 lattices (referred to as 0LMN, 0.05LMN, 0.10LMN, and 0.15LMN) through a water-based sol-gel method. The piezo-photocatalytic degradation ratio for Rhodamine B (RhB) is enhanced from 59.7% (0LMN) to 89.7% (0.10LMN) within 100 min, and the kinetic rate constant (k) is increased from 0.009 to 0.022 min-1. The enhanced performance is attributed to (i) the narrowed band gap (from 3.40 to 2.84 eV), which is conducive to the generation of photogenerated electrons and holes, and (ii) the enhanced piezoelectric properties, which can strengthen the piezoelectric polarization, thereby accelerating the separation of the photogenerated electrons and holes. And we also found that the synergetic effect of photocatalysis and piezocatalysis was superior to that of photocatalysis and piezocatalysis alone. This study could provide new perspectives for the reasonable construction of an efficient catalyst in the piezo-photocatalytic field.
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Affiliation(s)
- Li Li
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
- Laboratory of Dielectric Functional Materials, School of Physics & Materials Science, Anhui University, Hefei 230601, China
| | - Shun Lu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Wenjun Cao
- Laboratory of Dielectric Functional Materials, School of Physics & Materials Science, Anhui University, Hefei 230601, China
| | - Qingqing Zhu
- Laboratory of Dielectric Functional Materials, School of Physics & Materials Science, Anhui University, Hefei 230601, China
| | - Rui Li
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Yijun Wei
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Shiliu Yang
- School of Chemistry and Materials Engineering, New Energy Materials and Technology Research Center, Huainan Research Center of New Carbon Energy Materials, Anhui Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
| | - Chunchang Wang
- Laboratory of Dielectric Functional Materials, School of Physics & Materials Science, Anhui University, Hefei 230601, China
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Wang C, Su H, Ma X, Zhao H. Asymmetrical 1 st reflection trend owing to metallization difference at ± Z-faces in indium tin oxide coated Fe-doped lithium niobate. OPTICS EXPRESS 2020; 28:32042-32048. [PMID: 33115167 DOI: 10.1364/oe.404870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
The charges accumulated at the interface of indium tin oxide (ITO) and iron doped lithium niobate (LN) in an extremely thin layer because of semiconductor band alignment were analyzed with ab initio theory. The formation of 2D electron gas makes the interface metallic and the excitation of surface plasmon polaritons (SPPs) possible. In experiments, diametrically opposite trends of the very first reflection (VFR) on the ± Z-faces of ITO coated Fe-LN slabs were observed and associated with the differences in metallization and the photovoltaic charge accumulation there. Microscopically, the electric environments of the two ITO/LN interfaces differ greatly owing to spontaneous polarization and photovoltaic fields, which alter the band structures and band alignment, resulting in phase gratings with a π-shift difference recorded at the two interfaces. This affects the opposite energy coupling between the SPPs and laser beams and results in the dramatically opposite trends of VFR.
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Leal Marchena C, Pecchi G, Pierella L. Titanium substituted potassium tantalates (KTaxTi1-xO3 x= 1.0, 0.8, 0.6, 0.5): Catalysts for the methyl phenyl sulfide oxidation. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2019.110685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Tang J, Yao P, Wang L, Bian H, Luo M, Huang F. Schiff base complex conjugates of bovine serum albumin as artificial metalloenzymes for eco-friendly enantioselective sulfoxidation. RSC Adv 2018; 8:40720-40730. [PMID: 35557885 PMCID: PMC9091609 DOI: 10.1039/c8ra07113f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 11/23/2018] [Indexed: 11/21/2022] Open
Abstract
Artificial metalloenzymes (BSA-ML) have been prepared by non-covalent insertion of transition metal Schiff-base complexes, ML (L = 2-hydroxynaphthalen-1-naphthaldehyde and 3,4-diaminobenzenesulfonic acid; M = Co, Mn, V, Fe, Cr), into bovine serum albumin (BSA) as the host protein and were characterized by UV-visible spectroscopy, ESI-TOF mass spectrometry and molecular docking studies. The catalytic activities of the BSA-ML in the selective oxidation of various prochiral sulfides in aqueous media, using H2O2 as oxidant, have been evaluated. During the optimization process, pH and the concentrations of catalyst and oxidant were found to have a remarkable influence on both yield and enantioselectivity. In certain cases, BSA-ML gave satisfactory results in the oxidation of organic sulfides to sulfoxides (up to 100% conversion, 100% chemoselectivity, 96% ee and 500 h-1 turnover frequency).
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Affiliation(s)
- Jie Tang
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Key Laboratory of Chemistry and Engineering of Forest Products Nanning 530008 P. R. China
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University Guilin 541004 P. R. China
- Guilin Normal College Guilin 541001 P. R. China
| | - Pengfei Yao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University Guilin 541004 P. R. China
| | - Lina Wang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University Guilin 541004 P. R. China
| | - Hedong Bian
- School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Key Laboratory of Chemistry and Engineering of Forest Products Nanning 530008 P. R. China
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University Guilin 541004 P. R. China
| | - Meiyi Luo
- Guilin Normal College Guilin 541001 P. R. China
| | - Fuping Huang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University Guilin 541004 P. R. China
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Salinas DA, Marchena CL, Pierella LB, Pecchi G. Catalytic oxidation of 2-(methylthio)-benzothiazole on alkaline earth titanates, ATiO3 (A = Ca, Sr, Ba). MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.05.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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