1
|
Xue J, Jiang S, Wang Z, Jiang Z, Cao H, Zhu X, Zhang Q, Luo Y, Bao J. Efficient Exciton Dissociation through the Edge Interfacial State in Metal Halide Perovskite-Based Photocatalysts. J Phys Chem Lett 2023; 14:1504-1511. [PMID: 36745060 DOI: 10.1021/acs.jpclett.2c03927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Metal halide perovskites (MHPs) with superior optoelectronic properties have recently been actively pursued as catalysts in heterogeneous photocatalysis. Dissociating excitons into charge carriers holds the key to enhancing the photocatalytic performance of MHP-based photocatalysts, especially for those with strong quantum-confinement effects. However, attaining efficient exciton dissociation has been rather challenging. Herein, we propose a novel concept that the edge interfacial state can trigger anisotropic electron transfer to promote exciton dissociation. By taking Cs4PbBr6/TiO2 mesocrystal heterojunction as a proof-of-concept, we demonstrate that the unique interfacial state at the edge of the system is generated by the defect-mediated chemical interaction and acts as a trap state, which brings on a directionally favored electron transfer from the center to edge regions, thereby significantly enhancing the desired exciton dissociation. Consequently, such a system achieves an excellent performance in photocatalytic CO2 reduction. This paradigmatic work sheds light on the excitonic aspects for rational design of advanced photocatalysts toward high performance.
Collapse
Affiliation(s)
- Jiawei Xue
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Shenlong Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhiyu Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhiyong Jiang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Heng Cao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Xiaodi Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Qun Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
| | - Yi Luo
- Hefei National Research Center for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
| | - Jun Bao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
- iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, China
| |
Collapse
|
2
|
Photocatalytic destruction of stearic acid by TiO2 films: Evidence of highly efficient transport of photogenerated electrons and holes. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
3
|
Chakachaka V, Tshangana C, Mahlangu O, Mamba B, Muleja A. Interdependence of Kinetics and Fluid Dynamics in the Design of Photocatalytic Membrane Reactors. MEMBRANES 2022; 12:membranes12080745. [PMID: 36005662 PMCID: PMC9412706 DOI: 10.3390/membranes12080745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 01/18/2023]
Abstract
Photocatalytic membrane reactors (PMRs) are a promising technology for wastewater reclamation. The principles of PMRs are based on photocatalytic degradation and membrane rejection, the different processes occurring simultaneously. Coupled photocatalysis and membrane filtration has made PMRs suitable for application in the removal of emerging contaminants (ECs), such as diclofenac, carbamazepine, ibuprofen, lincomycin, diphenhydramine, rhodamine, and tamoxifen, from wastewater, while reducing the likelihood of byproducts being present in the permeate stream. The viability of PMRs depends on the hypotheses used during design and the kinetic properties of the systems. The choice of design models and the assumptions made in their application can have an impact on reactor design outcomes. A design’s resilience is due to the development of a mathematical model that links material and mass balances to various sub-models, including the fluid dynamic model, the radiation emission model, the radiation absorption model, and the kinetic model. Hence, this review addresses the discrepancies with traditional kinetic models, fluid flow dynamics, and radiation emission and absorption, all of which have an impact on upscaling and reactor design. Computational and analytical descriptions of how to develop a PMR system with high throughput, performance, and energy efficiency are provided. The potential solutions are classified according to the catalyst, fluid dynamics, thickness, geometry, and light source used. Two main PMR types are comprehensively described, and a discussion of various influential factors relating to PMRs was used as a premise for developing an ideal reactor. The aim of this work was to resolve potential divergences that occur during PMRs design as most real reactors do not conform to the idealized fluid dynamics. Lastly, the application of PMRs is evaluated, not only in relation to the removal of endocrine-disrupting compounds (EDCs) from wastewater, but also in dye, oil, heavy metals, and pesticide removal.
Collapse
|
4
|
Li B, Tong F, Lv M, Wang Z, Liu Y, Wang P, Cheng H, Dai Y, Zheng Z, Huang B. In Situ Monitoring Charge Transfer on Topotactic Epitaxial Heterointerface for Tetracycline Degradation at the Single-Particle Level. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bei Li
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Fengxia Tong
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Min Lv
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Peng Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Hefeng Cheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Ying Dai
- School of Physics, Shandong University, Jinan 250100, China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| |
Collapse
|
5
|
Zhao Q, Ren Y, Huang L, Chen Y, Bian Z. In situ Fe(III)-doped TiO2 mesocrystals catalyzed visible light photo-Fenton system. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
6
|
Rettenmaier K, Berger T. Impact of Nanoparticle Consolidation on Charge Separation Efficiency in Anatase TiO 2 Films. Front Chem 2021; 9:772116. [PMID: 34858947 PMCID: PMC8631187 DOI: 10.3389/fchem.2021.772116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/06/2021] [Indexed: 12/03/2022] Open
Abstract
Mesoporous films and electrodes were prepared from aqueous slurries of isolated anatase TiO2 nanoparticles. The resulting layers were annealed in air at temperatures 100°C ≤ T ≤ 450°C upon preservation of internal surface area, crystallite size and particle size. The impact of processing temperature on charge separation efficiency in nanoparticle electrodes was tracked via photocurrent measurements in the presence of methanol as a hole acceptor. Thermal annealing leads to an increase of the saturated photocurrent and thus of the charge separation efficiency at positive potentials. Furthermore, a shift of capacitive peaks in the cyclic voltammograms of the nanoparticle electrodes points to the modification of the energy of deep traps. Population of these traps triggers recombination possibly due to the action of local electrostatic fields attracting photogenerated holes. Consequently, photocurrents saturate at potentials, at which deep traps are mostly depopulated. Charge separation efficiency was furthermore investigated for nanoparticle films and was tracked via the decomposition of hydrogen peroxide. Our observations evidence an increase of charge separation efficiency upon thermal annealing. The effect of particle consolidation, which we associate with minute atomic rearrangements at particle/particle contacts, is attributed to the energetic modification of deep traps and corresponding modifications of charge transport and recombination, respectively.
Collapse
Affiliation(s)
- Karin Rettenmaier
- Department of Chemistry and Physics of Materials, University of Salzburg, Salzburg, Austria
| | - Thomas Berger
- Department of Chemistry and Physics of Materials, University of Salzburg, Salzburg, Austria
| |
Collapse
|
7
|
Hexavalent chromium reduction by ZnO, SnO2 and ZnO-SnO2 synthesized using biosurfactants from extract of Solanum macrocarpon. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1016/j.sajce.2021.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
|
8
|
Tang Y, Huang J, Liu S, Xiang D, Ma X, Yu X, Li M, Guo Q. Surface engineering induced superstructure Ta2O5−x mesocrystals for enhanced visible light photocatalytic antibiotic degradation. J Colloid Interface Sci 2021; 596:468-478. [DOI: 10.1016/j.jcis.2021.03.118] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/11/2022]
|
9
|
Sun S, Zhang X, Yu X, Cui J, Yang M, Yang Q, Xiao P, Liang S. Unprecedented Ag-Cu 2O composited mesocrystals with efficient charge separation and transfer as well as visible light harvesting for enhanced photocatalytic activity. NANOSCALE 2021; 13:11867-11877. [PMID: 34190279 DOI: 10.1039/d1nr02306c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mesocrystals with highly ordered subunits can provide good charge transfer tunnels and more active sites for catalytic reactions. So far, single-component mesocrystals have been well-developed in metals or metal oxides in the past decades, but the construction of mesocrystals in nanocomposites has been a great challenge. Herein we demonstrated a simple, one-pot wet chemical strategy for the preparation of plate-like Ag-Cu2O composited mesocrystals (CMCs) without any organic capping agent, which broke through the traditional dependence on organic capping agents for the synthesis of mesocrystals. As expected, these unprecedented Ag-Cu2O CMCs displayed superior visible-light-driven photodegradation performance toward tetracycline solution compared to the core-shell Ag@Cu2O and pure Cu2O photocatalysts. The improved photocatalytic activity of Ag-Cu2O CMCs could be ascribed to the synergistic effect of an ordered crystallographic orientation, the Schottky barrier and localized surface plasmon resonance (LSPR) for simultaneously enhancing charge separation and transfer as well as visible light harvesting. This research might stimulate in-depth investigations on the exploration of new synthetic methods for the design and construction of novel composited mesocrystals.
Collapse
Affiliation(s)
- Shaodong Sun
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China.
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Liu Q, Zhang Q, Liu B, Dai WL. Facile one-step hydrothermal synthesis of single-crystalline SnNb 2O 6 nanosheets with greatly extended visible-light response for enhanced photocatalytic performance and mechanism insight. NANOTECHNOLOGY 2021; 32:065705. [PMID: 33091892 DOI: 10.1088/1361-6528/abc3e3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The conventional preparation of SnNb2O6 invariably involves complex and laborious steps, which unavoidably introduces defect into the host lattice and also increases the reaction period and costs, resulting in undesired recombination of photo-generated electron-hole pairs. For the first time in this work, we manage to synthesize single-crystalline two-dimensional (2D) SnNb2O6 nanosheets with ultrathin structure through a facile one-step hydrothermal method. Comparative studies were explored to analyze the structure and phase evolution during the preparation course. The synthesized 2D structure demonstrated a narrower band gap of 2.09 eV and specific surface area of 76.1 m2 g-1, which exhibited significantly extended visible-light-responsive range and larger surface area by contrast with the state-of-the-art reports, resulting in excellent visible-light-driven photoactivity towards H2 production and water purification as well. Additionally, further enhanced photocatalytic performance was achieved by the incorporation of Pt as co-catalyst to indirectly indicate the advantage of the SnNb2O6 nanosheets in this method over other reported counterparts. It was found that, a very small amount of Pt loaded on the surface of SnNb2O6 nanosheets would contribute to remarkably higher activity than pure SnNb2O6 nanosheets and exhibit superior stability as well. Moreover, a deep insight into the underlying photocatalytic mechanism was proposed. This work sheds light on a new facile way to fabricate high-performance photocatalytic materials and provided new opportunities for solar-energy conversion.
Collapse
Affiliation(s)
- Qianqian Liu
- Research Center for Nanophotonic and Nanoelectronic Materials, School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu Province, People's Republic of China
| | - Quan Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Bo Liu
- Research Center for Nanophotonic and Nanoelectronic Materials, School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu Province, People's Republic of China
| | - Wei-Lin Dai
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| |
Collapse
|
11
|
Sun S, Yang X, Yang M, Cui J, Yang Q, Liang S. Surface engraving engineering of polyhedral photocatalysts. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01153g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Surface engraving engineering of polyhedral photocatalysts is overviewed based on synthetic strategies and engraved surface-related photocatalytic mechanisms. Some challenges and perspectives are also proposed.
Collapse
Affiliation(s)
- Shaodong Sun
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
| | - Xiaoli Yang
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
| | - Man Yang
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
| | - Jie Cui
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
| | - Qing Yang
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
| | - Shuhua Liang
- Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education; Shaanxi Engineering Research Center of Metal-Based Heterogeneous Materials and Advanced Manufacturing Technology; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology; School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
| |
Collapse
|
12
|
Visible-Light Photocatalysts and Their Perspectives for Building Photocatalytic Membrane Reactors for Various Liquid Phase Chemical Conversions. Catalysts 2020. [DOI: 10.3390/catal10111334] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Photocatalytic organic synthesis/conversions and water treatment under visible light are a challenging task to use renewable energy in chemical transformations. In this review a brief overview on the mainly employed visible light photocatalysts and a discussion on the problems and advantages of Vis-light versus UV-light irradiation is reported. Visible light photocatalysts in the photocatalytic conversion of CO2, conversion of acetophenone to phenylethanol, hydrogenation of nitro compounds, oxidation of cyclohexane, synthesis of vanillin and phenol, as well as hydrogen production and water treatment are discussed. Some applications of these photocatalysts in photocatalytic membrane reactors (PMRs) for carrying out organic synthesis, conversion and/or degradation of organic pollutants are reported. The described cases show that PMRs represent a promising green technology that could shift on applications of industrial interest using visible light (from Sun) active photocatalysts.
Collapse
|
13
|
Visible light photocatalysis of amorphous Cl-Ta2O5−x microspheres for stabilized hydrogen generation. J Colloid Interface Sci 2020; 572:141-150. [DOI: 10.1016/j.jcis.2020.03.030] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 03/03/2020] [Accepted: 03/08/2020] [Indexed: 12/19/2022]
|
14
|
Murakami Y, Kamegawa T, Kobori Y, Tachikawa T. TiO 2 superstructures with oriented nanospaces: a strategy for efficient and selective photocatalysis. NANOSCALE 2020; 12:6420-6428. [PMID: 32141460 DOI: 10.1039/c9nr10435f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Highly ordered superstructures of semiconductor nanocrystals contain abundant nanometer-scale pores between the crystals; however, there have been difficulties in controlling the size and orientation of these nanospaces without the use of a template or a capping reagent. This constraint has affected their development and applications in potential fields including catalysis and optoelectronics adversely. In this study, we synthesized a rod-shaped TiO2 mesocrystal (TMC) having a length of a few hundreds of micrometers and comprising regularly ordered anatase TiO2 nanocrystals that form oriented nanospaces by exposed {001} facets. Finite-difference time-domain (FDTD) calculations of electric fields and in situ fluorescence imaging with a polarization sensitive dye on a single mesocrystal were performed to reveal anisotropic adsorption and excitation of the dyes. Furthermore, the photodegradation of the dyes was found to be more facilitated in nanospaces formed by the specific facets, as compared with the dyes randomly adsorbed on the outer surfaces. Consequently, the selectivity of photocatalytic reactions based on the molecular size and redox was enhanced by introducing the concept of oriented nanospace.
Collapse
Affiliation(s)
- Yuta Murakami
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan.
| | - Takashi Kamegawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8570, Japan
| | - Yasuhiro Kobori
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan. and Molecular Photoscience Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Takashi Tachikawa
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan. and Molecular Photoscience Research Center, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| |
Collapse
|
15
|
Guo Q, Zhao J, Yang Y, Huang J, Tang Y, Zhang X, Li Z, Yu X, Shen J, Zhao J. Mesocrystalline Ta 3N 5 superstructures with long-lived charges for improved visible light photocatalytic hydrogen production. J Colloid Interface Sci 2020; 560:359-368. [PMID: 31635883 DOI: 10.1016/j.jcis.2019.09.123] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/27/2019] [Accepted: 09/29/2019] [Indexed: 10/25/2022]
Abstract
Highly ordered mesocrystalline semiconductors often indicate tremendous prospects in the clean energy production and environmental photocatalysis mainly because of their unique superstructure for efficient charge transport pathways and long-lived charges. Here, superstructure Ta3N5 mesocrystals with the high-energy surface {2 0 0} planes exposed were the first time to be successfully fabricated by topological transformation of Ta2O5 mesocrystals. The prepared Ta3N5 mesocrystals showed enhanced visible-light photocatalytic hydrogen production activity of 98.67 μmol g-1 for 180 min irradiation, which was approximately 5.28 times that of comm-Ta3N5 prepared with commercial Ta2O5 as the starting material, mainly due to the formation of long-distance electron conduction pathways and long-lived charges. The detailed electronic band structures of the prepared Ta3N5 mesocrystals were also investigated by electrochemical method. Finally, possible visible-light photocatalytic mechanisms of Ta3N5 mesocrystals for enhanced hydrogen production was also proposed in detail. Current work also indicates that tantalum-based mesocrystals show great potential to enhance the charge separation for efficient photocatalytic water splitting.
Collapse
Affiliation(s)
- Quanhui Guo
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Jingjing Zhao
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Yang Yang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Jielin Huang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Yanting Tang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Xilan Zhang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Zhonghua Li
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China
| | - Xin Yu
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China; Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| | - Jun Shen
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
| |
Collapse
|
16
|
Chen BB, Liu ML, Huang CZ. Carbon dot-based composites for catalytic applications. GREEN CHEMISTRY 2020; 22:4034-4054. [DOI: 10.1039/d0gc01014f] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
We summarize the construction methods and influencing factors of CDs-based composites and discuss their catalytic applications, including photocatalysis, chemical catalysis, peroxidase-like catalysis, Fenton-like catalysis and electrocatalysis.
Collapse
Affiliation(s)
- Bin Bin Chen
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
- School of Chemistry & Molecular Engineering
| | - Meng Li Liu
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescence and Real-Time Analytical System
- Chongqing Science and Technology Bureau
- College of Pharmaceutical Science
- Southwest University
- Chongqing 400715
| |
Collapse
|
17
|
Akram B, Ni B, Wang X. Van der Waals Integrated Hybrid POM-Zirconia Flexible Belt-Like Superstructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906794. [PMID: 31773834 DOI: 10.1002/adma.201906794] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/04/2019] [Indexed: 06/10/2023]
Abstract
A facile one-step solvothermal approach to engineer a van der Waals integrated heteromaterial self-assembled superstructure composed of two structurally distinct species that is polyoxomolybdate and zirconia (POM-ZrO2 ) is reported. Nonclassical aggregation-based self-assembly process grows the superstructure. The introduced POM not only behaves as a catalytically active component of the hybrid structure but also imparts flexibility to the developed POM-ZrO2 superstructures. The material shows high performance toward oxygenation of thioethers as a result of its morphology, composition, and structure. This growing strategy may introduce a viable pathway to the rational design of Van der Waals integrated complex hybrid, catalytically active assemblies with potential applications in different fields.
Collapse
Affiliation(s)
- Bilal Akram
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bing Ni
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xun Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| |
Collapse
|
18
|
Akram B, Wang X. Self-Assembly of Ultrathin Nanocrystals to Multidimensional Superstructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10246-10266. [PMID: 31330109 DOI: 10.1021/acs.langmuir.9b01290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The self-assembly of ultrathin nanocrystals (UTNCs) into well-organized multidimensional superstructures is one of the key topics in material chemistry and physics. Highly ordered nanocrystal assemblies also known as superstructures or synthetic structures have remained a focus for researchers over the past few years due to synergy in their properties as compared to their components. Here, we aim to present the recent progress being made in this field with highlights of our research group endeavors in the engineering of self-assembled complex multidimensional superstructures of various inorganic materials, including polyoxometalates. The driving forces for the assembly process and its kinetics along with the potential applications associated with these unique ordered and spatially complex superstructures are also discussed.
Collapse
Affiliation(s)
- Bilal Akram
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| | - Xun Wang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry , Tsinghua University , Beijing 100084 , China
| |
Collapse
|
19
|
Ma X, Cheng Y, Jian H, Feng Y, Chang Y, Zheng R, Wu X, Wang L, Li X, Zhang H. Hollow, Rough, and Nitric Oxide-Releasing Cerium Oxide Nanoparticles for Promoting Multiple Stages of Wound Healing. Adv Healthc Mater 2019; 8:e1900256. [PMID: 31290270 DOI: 10.1002/adhm.201900256] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/31/2019] [Indexed: 02/01/2023]
Abstract
Wound healing is a complex and sequential biological process that involves multiple stages. Although various nanomaterials are applied to accelerate the wound healing process, only a single stage is promoted during the process, lacking hierarchical stimulation. Herein, hollow CeO2 nanoparticles (NPs) with rough surface and l-arginine inside (Ah CeO2 NPs) are developed as a compact and programmable nanosystem for sequentially promoting the hemostasis, inflammation, and proliferation stages. The rough surface of Ah CeO2 NPs works as a nanobridge to rapidly closure the wounds, promoting the hemostasis stage. The hollow structure of Ah CeO2 NPs enables the multireflection of light inside particles, significantly enhancing the light harvest efficiency and electron-hole pair abundance. Simultaneously, the porous shell of Ah CeO2 NPs facilitates the electron-hole separation and reactive oxygen species production, preventing wound infection and promotion wound healing during the inflammation stage. The enzyme mimicking property of Ah CeO2 NPs can alleviate the oxidative injury in the wound, and the released l-arginine can be converted into nitric oxide (NO) under the catalysis of inducible NO synthase, both of which promote the proliferation stage. A series of in vitro and in vitro biological assessments corroborate the effectiveness of Ah CeO2 NPs in the wound healing process.
Collapse
Affiliation(s)
- Xiaomin Ma
- School of Chemistry and Life ScienceChangchun University of Technology Changchun 130012 China
| | - Yan Cheng
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Hui Jian
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Yanlin Feng
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Yun Chang
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Runxiao Zheng
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Xiaqing Wu
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Li Wang
- School of Chemistry and Life ScienceChangchun University of Technology Changchun 130012 China
| | - Xi Li
- School of Chemistry and Life ScienceChangchun University of Technology Changchun 130012 China
| | - Haiyuan Zhang
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| |
Collapse
|
20
|
Huesmann H, Schechtel E, Lieberwirth I, Panthöfer M, Tremel W. Surface Chemistry Directs the Tunable Assembly of TiO
2
Anatase Nanocubes into Three‐Dimensional Mesocrystals. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hannah Huesmann
- Institut für Anorganische Chemie und Analytische Chemie Johannes‐Gutenberg‐Universität Mainz Duesbergweg 10‐14 55128 Mainz Germany
| | - Eugen Schechtel
- Institut für Anorganische Chemie und Analytische Chemie Johannes‐Gutenberg‐Universität Mainz Duesbergweg 10‐14 55128 Mainz Germany
| | - Ingo Lieberwirth
- Max‐Planck‐Institut für Polymerforschung Ackermannweg 10 55128 Mainz Germany
| | - Martin Panthöfer
- Institut für Anorganische Chemie und Analytische Chemie Johannes‐Gutenberg‐Universität Mainz Duesbergweg 10‐14 55128 Mainz Germany
| | - Wolfgang Tremel
- Institut für Anorganische Chemie und Analytische Chemie Johannes‐Gutenberg‐Universität Mainz Duesbergweg 10‐14 55128 Mainz Germany
| |
Collapse
|
21
|
Kamegawa T, Ishiguro Y, Yamashita H. Photocatalytic properties of TiO2-loaded porous silica with hierarchical macroporous and mesoporous architectures in the degradation of gaseous organic molecules. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.06.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
22
|
Elbanna O, Zhu M, Fujitsuka M, Majima T. Black Phosphorus Sensitized TiO2 Mesocrystal Photocatalyst for Hydrogen Evolution with Visible and Near-Infrared Light Irradiation. ACS Catal 2019. [DOI: 10.1021/acscatal.8b05081] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ossama Elbanna
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Mingshan Zhu
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| |
Collapse
|
23
|
Sheng X, Xu T, Feng X. Rational Design of Photoelectrodes with Rapid Charge Transport for Photoelectrochemical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805132. [PMID: 30637813 DOI: 10.1002/adma.201805132] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/23/2018] [Indexed: 06/09/2023]
Abstract
Photoelectrode materials are the heart of photoelectrochemical (PEC) cells, which hold great promise to address global energy and environmental issues by converting solar energy into electricity or chemical fuels. In recent decades, significant research efforts have been devoted to the design and construction of photoelectrodes for the efficient generation and utilization of charge carriers to boost PEC performance. Herein, insights from a literature study on the relationship between the architecture and charge dynamics of photoelectrodes are presented. After briefly introducing the fundamental theories of charge dynamics in nanostructured photoelectrodes, the development of photoelectrode design in 1D polycrystalline nanotube arrays, 1D single-crystalline nanowire arrays, and hierarchical and mesoporous nanowire arrays is reviewed with a focus on the interplay between architecture and charge transport properties. For each design, commonly used synthetic approaches and the corresponding charge transport properties are discussed. Subsequently, the applications of these photoelectrodes in PEC systems are summarized. In conclusion, future challenges in the rational design of photoelectrode architecture are presented. The basic relationships between the architectures and charge dynamics of photoelectrode materials discussed here are expected to provide pertinent guidance and a reference for future advanced material design targeting improved light energy conversion systems.
Collapse
Affiliation(s)
- Xia Sheng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Tao Xu
- Department of Chemistry and Biochemistry, Northern Illinois University, Dekalb, IL, 60115, USA
| | - Xinjian Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| |
Collapse
|
24
|
Li Y, Ye X, Cao S, Yang C, Wang Y, Ye J. Oxygen-Deficient Dumbbell-Shaped Anatase TiO 2-x Mesocrystals with Nearly 100 % Exposed {101} Facets: Synthesis, Growth Mechanism, and Photocatalytic Performance. Chemistry 2019; 25:3032-3041. [PMID: 30602067 DOI: 10.1002/chem.201805356] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Indexed: 11/09/2022]
Abstract
The development of hierarchical TiO2 superstructures with new morphologies and intriguing photoelectric properties for utilizing solar energy is known to be an effective approach to alleviate the serious problems of environmental pollution. Herein, unique oxygen-deficient dumbbell-shaped anatase TiO2-x mesocrystals (DTMCs) enclosed by nearly 100 % {101} facets were readily synthesized by mesoscale transformation in TiCl3 /acetic acid (HAc) mixed solution, followed by calcination under vacuum. These mesocrystals exhibited much higher photoreactivity toward removing the model pollutants methyl orange and CrVI than truncated tetragonal bipyramidal anatase nanocrystals (TNCs), anatase mesocrystals built from truncated tetragonal bipyramidal anatase nanocrystals (TTMCs), and anatase mesocrystals constructed by anatase nanocrystals with nearly 100 % exposed {101} facets (TMCs), revealing that both the oxidation and reduction abilities of anatase TiO2 were simultaneously enhanced upon fabricating an oxygen-deficient mesocrystalline architecture with about 100 % exposed {101} facets. Further characterization illustrated that such an enhancement of photoreactivity was mainly due to the strengthened light absorption, boosted charge carrier separation, and nearly 100 % exposed {101} facets of the oxygen-deficient dumbbell-shaped anatase mesocrystals. This work will be useful for guiding the synthesis of oxygen-deficient ordered superstructures of metal oxides with desired morphologies and exposed facets for promising applications in environmental remediation.
Collapse
Affiliation(s)
- Yongjun Li
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Xiaozhou Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Shengxin Cao
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Chujing Yang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Yun Wang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Jianfeng Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| |
Collapse
|
25
|
Titanium Dioxide (TiO2) Mesocrystals: Synthesis, Growth Mechanisms and Photocatalytic Properties. Catalysts 2019. [DOI: 10.3390/catal9010091] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hierarchical TiO2 superstructures with desired architectures and intriguing physico-chemical properties are considered to be one of the most promising candidates for solving the serious issues related to global energy exhaustion as well as environmental deterioration via the well-known photocatalytic process. In particular, TiO2 mesocrystals, which are built from TiO2 nanocrystal building blocks in the same crystallographical orientation, have attracted intensive research interest in the area of photocatalysis owing to their distinctive structural properties such as high crystallinity, high specific surface area, and single-crystal-like nature. The deeper understanding of TiO2 mesocrystals-based photocatalysis is beneficial for developing new types of photocatalytic materials with multiple functionalities. In this paper, a comprehensive review of the recent advances toward fabricating and modifying TiO2 mesocrystals is provided, with special focus on the underlying mesocrystallization mechanism and controlling rules. The potential applications of as-synthesized TiO2 mesocrystals in photocatalysis are then discussed to shed light on the structure–performance relationships, thus guiding the development of highly efficient TiO2 mesocrystal-based photocatalysts for certain applications. Finally, the prospects of future research on TiO2 mesocrystals in photocatalysis are briefly highlighted.
Collapse
|
26
|
Sun S, Yu X, Yang Q, Yang Z, Liang S. Mesocrystals for photocatalysis: a comprehensive review on synthesis engineering and functional modifications. NANOSCALE ADVANCES 2019; 1:34-63. [PMID: 36132462 PMCID: PMC9473194 DOI: 10.1039/c8na00196k] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 09/14/2018] [Indexed: 05/10/2023]
Abstract
Mesocrystals are a new class of superstructures that are generally made of crystallographically highly ordered nanoparticles and could function as intermediates in a non-classical particle-mediated aggregation process. In the past decades, extensive research interest has been focused on the structural and morphogenetic aspects, as well as the growth mechanisms, of mesocrystals. Unique physicochemical properties including high surface area and ordered porosity provide new opportunities for potential applications. In particular, the oriented interfaces in mesocrystals are considered to be beneficial for effective photogenerated charge transfer, which is a promising photocatalytic candidate for promoting charge carrier separation. Only recently, remarkable advances have been reported with a special focus on TiO2 mesocrystal photocatalysts. However, there is still no comprehensive overview on various mesocrystal photocatalysts and their functional modifications. In this review, different kinds of mesocrystal photocatalysts, such as TiO2 (anatase), TiO2 (rutile), ZnO, CuO, Ta2O5, BiVO4, BaZrO3, SrTiO3, NaTaO3, Nb3O7(OH), In2O3-x (OH) y , and AgIn(WO4)2, are highlighted based on the synthesis engineering, functional modifications (including hybridization and doping), and typical structure-related photocatalytic mechanisms. Several current challenges and crucial issues of mesocrystal-based photocatalysts that need to be addressed in future studies are also given.
Collapse
Affiliation(s)
- Shaodong Sun
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi'an University of Technology Xi'an 710048 Shaanxi People's Republic of China
| | - Xiaojing Yu
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi'an University of Technology Xi'an 710048 Shaanxi People's Republic of China
| | - Qing Yang
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi'an University of Technology Xi'an 710048 Shaanxi People's Republic of China
| | - Zhimao Yang
- School of Science, State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University Xi'an 710049 Shaanxi People's Republic of China
| | - Shuhua Liang
- Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi'an University of Technology Xi'an 710048 Shaanxi People's Republic of China
| |
Collapse
|
27
|
Zhou S, Zhang C, Liu J, Liao J, Kong Y, Xu Y, Chen G. Formation of an oriented Bi2WO6 photocatalyst induced by in situ Bi reduction and its use for efficient nitrogen fixation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00972h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An in situ Bi reduction strategy to induce a preferential orientation that significantly enhanced the photocatalytic nitrogen fixation performance of Bi2WO6.
Collapse
Affiliation(s)
- Shengyao Zhou
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Congmin Zhang
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Jingyuan Liu
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Jie Liao
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Yi Kong
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Yanling Xu
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Gang Chen
- A MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- P. R. China
| |
Collapse
|
28
|
Wang H, Chen Q, Luan Q, Duan R, Guan R, Cao X, Hu X. Photocatalytic Properties Dependent on the Interfacial Defects of Intergrains within TiO
2
Mesocrystals. Chemistry 2018; 24:17105-17116. [PMID: 30203868 DOI: 10.1002/chem.201803516] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/03/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Hui Wang
- School of Material Science & EngineeringUniversity of Jinan No.336, West Road of Nanxinzhuang Jinan Shandong 250022 P.R. China
| | - Qifeng Chen
- School of Material Science & EngineeringUniversity of Jinan No.336, West Road of Nanxinzhuang Jinan Shandong 250022 P.R. China
| | - Qingrui Luan
- School of Material Science & EngineeringUniversity of Jinan No.336, West Road of Nanxinzhuang Jinan Shandong 250022 P.R. China
| | - Ran Duan
- Institute of ChemistryChinese Academy of Sciences Zhongguancun North First Street No. 2 Beijing 100190 P.R. China
| | - Ruifang Guan
- School of Material Science & EngineeringUniversity of Jinan No.336, West Road of Nanxinzhuang Jinan Shandong 250022 P.R. China
| | - Xingzhong Cao
- The Institute of High Energy PhysicsChinese Academy of Sciences 19B Yuquan Lu, Shijingshan District Beijing 100049 P.R. China
| | - Xun Hu
- School of Material Science & EngineeringUniversity of Jinan No.336, West Road of Nanxinzhuang Jinan Shandong 250022 P.R. China
| |
Collapse
|
29
|
Tan B, Ye X, Li Y, Ma X, Wang Y, Ye J. Defective Anatase TiO 2-x Mesocrystal Growth In Situ on g-C 3 N 4 Nanosheets: Construction of 3D/2D Z-Scheme Heterostructures for Highly Efficient Visible-Light Photocatalysis. Chemistry 2018; 24:13311-13321. [PMID: 29957872 DOI: 10.1002/chem.201802366] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/14/2018] [Indexed: 11/09/2022]
Abstract
Environmental remediation by employing visible-light-active semiconductor heterostructures provides effective solutions for handling emerging contaminants by a much greener and lower cost approach compared with other methods. This report demonstrates that the in situ growth of nanosized single-crystal-like defective anatase TiO2-x mesocrystals (DTMCs) on g-C3 N4 nanosheets (NSs) can produce a 3D/2D DTMC/g-C3 N4 NS heterostructure with the two components held together by chemical bonds to form tight interfaces. This nanostructured heterostructure displayed remarkably improved photocatalytic activity toward the removal of the model pollutants Methyl Orange (MO) and CrVI under visible-light irradiation in comparison with the pristine DTMC and g-C3 N4 NS components, which suggests that both the oxidation and reduction abilities of the DTMC/g-C3 N4 NSs were simultaneously enhanced after fabrication. On the basis of the results of a systematic characterization, a reasonable mechanism for the photocatalytic activity based on a direct Z-scheme heterojunction is proposed and further verified by the measurement of . OH. This novel Z-scheme heterojunction endows the heterostructure with improved photogenerated electron/hole pair separation and a strong redox ability for the efficient degradation of wastewater pollutants. This work will be useful for the design and fabrication of direct Z-scheme heterostructured photocatalysts with novel architectures for applications in energy conversion and environmental remediation.
Collapse
Affiliation(s)
- Biying Tan
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Xiaozhou Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Yongjun Li
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Xiaoqi Ma
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Yun Wang
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| | - Jianfeng Ye
- Department of Chemistry, College of Science, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan, 430070, P. R. China
| |
Collapse
|
30
|
Zheng R, Li T, Yu H. Construction of Indium and Cerium Codoped Ordered Mesoporous TiO 2 Aerogel Composite Material and Its High Photocatalytic Activity. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1700118. [PMID: 31565333 PMCID: PMC6607184 DOI: 10.1002/gch2.201700118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 04/12/2018] [Indexed: 06/10/2023]
Abstract
In this study, ordered mesoporous In2O3-CeO2/TiO2 aerogel composite material is fabricated via a sol-gel method. According to the preparation process of the aerogel, different weight percentages Ce(NO3)3 and In(NO3)3 are dissolved in the solvent, which would be completely dispersed in the porous gel when the system completely becomes gel. The prepared materials are used to degrade the Rhodamine B (Rh B) under visible light irradiation. 0.2 wt% In2O3-0.2 wt% CeO2/TiO2 (In0.2-Ce0.2/TiO2) sample has the highest degradation rate which reaches to 96.20%. When degradation time is continuously increased to 110 min, the degradation efficiency of In0.2-Ce0.2/TiO2 sample is basically retained. The prepared In0.2-Ce0.2/TiO2 sample has much better stability and reproducibility under visible light irradiation, the photocatalytic degradation efficiency of In0.2-Ce0.2/TiO2 sample is still stable at more than 90% after the five times cycle.
Collapse
Affiliation(s)
- Ren‐Rong Zheng
- School of Chemistry and Environmental EngineeringChangchun University of Science and TechnologyChangchun130022P. R. China
| | - Tian‐Tian Li
- School of Chemistry and Environmental EngineeringChangchun University of Science and TechnologyChangchun130022P. R. China
| | - Hui Yu
- School of Chemistry and Environmental EngineeringChangchun University of Science and TechnologyChangchun130022P. R. China
| |
Collapse
|
31
|
Ling L, Liu L, Feng Y, Zhu J, Bian Z. Synthesis of TiO2 mesocrystal film with enhanced photocatalytic activity. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(17)62980-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
32
|
Stolarczyk JK, Bhattacharyya S, Polavarapu L, Feldmann J. Challenges and Prospects in Solar Water Splitting and CO2 Reduction with Inorganic and Hybrid Nanostructures. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00791] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jacek K. Stolarczyk
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| | - Santanu Bhattacharyya
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| | - Lakshminarayana Polavarapu
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| | - Jochen Feldmann
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| |
Collapse
|
33
|
Carbon-dot-modified TiO2−x mesoporous single crystals with enhanced photocatalytic activity for degradation of phenol. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3269-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
34
|
Shingai D, Ide Y, Sohn WY, Katayama K. Photoexcited charge carrier dynamics of interconnected TiO2 nanoparticles: evidence of enhancement of charge separation at anatase–rutile particle interfaces. Phys Chem Chem Phys 2018; 20:3484-3489. [DOI: 10.1039/c7cp07563d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrothermal treatment can improve the charge separation efficiency of P25.
Collapse
Affiliation(s)
- Daiki Shingai
- Department of Applied Chemistry
- Faculty of Science and Technology
- Chuo University
- Tokyo 112-8551
- Japan
| | - Yusuke Ide
- International Center for Materials Nanoarchitectonics (MANA) National Institute for Materials Science (NIMS)
- Ibaraki 305-0044
- Japan
| | - Woon Yong Sohn
- Department of Applied Chemistry
- Faculty of Science and Technology
- Chuo University
- Tokyo 112-8551
- Japan
| | - Kenji Katayama
- Department of Applied Chemistry
- Faculty of Science and Technology
- Chuo University
- Tokyo 112-8551
- Japan
| |
Collapse
|
35
|
Yu X, Li W, Huang J, Li Z, Liu J, Hu P. Superstructure Ta2O5 mesocrystals derived from (NH4)2Ta2O3F6 mesocrystals with efficient photocatalytic activity. Dalton Trans 2018; 47:1948-1957. [DOI: 10.1039/c7dt04371f] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superstructured mesocrystalline Ta2O5 nanosheets were successfully prepared from mesocrystalline (NH4)2Ta2O3F6 nanorods by the annealing method.
Collapse
Affiliation(s)
- Xin Yu
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Wei Li
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Jian Huang
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Zhonghua Li
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Jiawen Liu
- Key Laboratory for Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province and College of Chemistry and Chemical Engineering
- Harbin Normal University
- Harbin 150025
- PR China
| | - PingAn Hu
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| |
Collapse
|
36
|
Zhang P, Tachikawa T, Fujitsuka M, Majima T. The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion. Chemistry 2017; 24:6295-6307. [DOI: 10.1002/chem.201704680] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Indexed: 01/24/2023]
Affiliation(s)
- Peng Zhang
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki, Osaka 567-0047 Japan
| | - Takashi Tachikawa
- Molecular Photoscience Research Center; Kobe University; 1-1 Rokkodai-cho Nada-ku Kobe 657-8501 Japan
- PRESTO, Science and Technology Agency (JST); 24-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki, Osaka 567-0047 Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki, Osaka 567-0047 Japan
| |
Collapse
|
37
|
Hattori H, Eguchi M, Ide Y, Sano T. Enhanced Photocatalytic Activity of a Layered Titanate Achieved via Simple Mixing with TiO2-Based Photocatalysts as Additives. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hideya Hattori
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527
| | - Miharu Eguchi
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044
| | - Yusuke Ide
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044
| | - Tsuneji Sano
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527
| |
Collapse
|
38
|
Elbanna O, Fujitsuka M, Majima T. g-C 3N 4/TiO 2 Mesocrystals Composite for H 2 Evolution under Visible-Light Irradiation and Its Charge Carrier Dynamics. ACS APPLIED MATERIALS & INTERFACES 2017; 9:34844-34854. [PMID: 28914526 DOI: 10.1021/acsami.7b08548] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The photocatalytic performance of graphitic carbon nitride (g-C3N4) has been limited to low efficiency due to fast charge recombination. Here, we constructed g-C3N4 nanosheets/TiO2 mesocrystals metal-free composite (g-C3N4 NS/TMC) to promote the efficiency of charge separation. The photocatalytic H2 evolution experiments indicate that coupling g-C3N4 NS with TMC increases photogenerated charge carriers in g-C3N4 NS/TMC composite due to efficient charge separation. g-C3N4 NS (31 wt %)/TMC shows the highest photocatalytic activity and the corresponding H2 evolution rate is 3.6 μ mol h-1. This value is 20 times larger than that of g-C3N4 NS without any noble metal cocatalyst under visible-light irradiation (λ > 420 nm). The photocatalytic activity of g-C3N4 NS/TMC (3.6 μmol h-1) is 7 times higher than that of g-C3N4 NS/P25 (0.5 μ mol h-1), confirming the importance of strong interface interaction between two-dimensional g-C3N4 NS and plate-shape TMC. Femtosecond time-resolved diffuse reflectance (fs-TDR) was employed to study the fundamental photophysical processes of bulk g-C3N4, g-C3N4 NS, and g-C3N4/TMC composite which are essential to explain the photocatalytic activity. Using fs-TDR, we demonstrate that the photocatalytic activity depends on the increased driving force for photoinduced electron transfer and a higher percentage of photogenerated charges.
Collapse
Affiliation(s)
- Ossama Elbanna
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University , Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University , Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University , Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
| |
Collapse
|
39
|
Zhang P, Ochi T, Fujitsuka M, Kobori Y, Majima T, Tachikawa T. Topotactic Epitaxy of SrTiO3
Mesocrystal Superstructures with Anisotropic Construction for Efficient Overall Water Splitting. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Peng Zhang
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
| | - Tomoya Ochi
- Department of Chemistry; Graduate School of Science; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
| | - Yasuhiro Kobori
- Department of Chemistry; Graduate School of Science; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- Molecular Photoscience Research Center; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
| | - Takashi Tachikawa
- Department of Chemistry; Graduate School of Science; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- Molecular Photoscience Research Center; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- PRESTO; Science and Technology Agency (JST); 24-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| |
Collapse
|
40
|
Zhang P, Ochi T, Fujitsuka M, Kobori Y, Majima T, Tachikawa T. Topotactic Epitaxy of SrTiO3
Mesocrystal Superstructures with Anisotropic Construction for Efficient Overall Water Splitting. Angew Chem Int Ed Engl 2017; 56:5299-5303. [DOI: 10.1002/anie.201702223] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Peng Zhang
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
| | - Tomoya Ochi
- Department of Chemistry; Graduate School of Science; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
| | - Yasuhiro Kobori
- Department of Chemistry; Graduate School of Science; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- Molecular Photoscience Research Center; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan
| | - Takashi Tachikawa
- Department of Chemistry; Graduate School of Science; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- Molecular Photoscience Research Center; Kobe University; 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- PRESTO; Science and Technology Agency (JST); 24-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| |
Collapse
|
41
|
Qin H, Bian Y, Zhang Y, Liu L, Bian Z. Effect of Ti (III) Surface Defects on the Process of Photocatalytic Reduction of Hexavalent Chromium. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600578] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hongxia Qin
- Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Yingying Bian
- Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Yaxi Zhang
- Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Longfei Liu
- Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| | - Zhenfeng Bian
- Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials; Shanghai Normal University; Shanghai 200234 China
| |
Collapse
|
42
|
Zhou Y, Fang W, Deng Y, Pan L, Shen B, Li H, Hu Y, Chen H, Xing M, Zhang J. Enhanced photoreduction of Cr(vi) and photooxidation of NO over TiO2−x mesoporous single crystals. RSC Adv 2017. [DOI: 10.1039/c7ra09903g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The extended wide-spectrum absorption and the high-active holes and electrons on Ti3+-MSCs lead to the high decontamination ability and an improved selectivity of NO2 in the NOx photo-oxidation process.
Collapse
|
43
|
Yu X, Fan X, Li Z, Liu J. Synthesis of plasmonic Ti3+ doped Au/Cl-TiO2 mesocrystals with enhanced visible light photocatalytic activity. Dalton Trans 2017; 46:11898-11904. [DOI: 10.1039/c7dt02824e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We successfully synthesized willow leaf-like plasmonic Ti3+ doped Au/Cl-TiO2 mesocrystals by facile modified two-phase vapor hydrolysis and photoreduction methods.
Collapse
Affiliation(s)
- Xin Yu
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Xiaoli Fan
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Zhonghua Li
- Key Laboratory of Microsystems and Microstructures Manufacturing
- Ministry of Education
- Harbin Institute of Technology
- Harbin 150001
- P. R. China
| | - Jiawen Liu
- Key Laboratory for Photochemical Biomaterials and Energy Storage Materials
- Heilongjiang Province and College of Chemistry and Chemical Engineering
- Harbin Normal University
- Harbin 150025
- PR China
| |
Collapse
|
44
|
Zhang P, Kim S, Fujitsuka M, Majima T. Controllable nanothorns on TiO2mesocrystals for efficient charge separation in hydrogen evolution. Chem Commun (Camb) 2017; 53:5306-5309. [DOI: 10.1039/c7cc01894k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we investigated that sheet-like TiO2mesocrystals with controllable nanothorns on the {101} facet during the topotactic transformation exhibit facet-induced charge separation and anisotropic electron flow, realizing the superior facet-dependent photocatalysis in solar energy conversion.
Collapse
Affiliation(s)
- Peng Zhang
- The Institute of Scientific and Industrial Research (SANKEN)
- Osaka University
- Ibaraki
- Japan
| | - Sooyeon Kim
- The Institute of Scientific and Industrial Research (SANKEN)
- Osaka University
- Ibaraki
- Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN)
- Osaka University
- Ibaraki
- Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN)
- Osaka University
- Ibaraki
- Japan
| |
Collapse
|
45
|
Sumina NB, Kumar SN, Achu R, Kumar BSD, Ray AK, Warrier KGK, Pillai S. Low Temperature Synthesis of High Energy Facets Exposed Sheet-like Anatase TiO2Mesocrystals Show Reduced e−/h+Pair Recombination Rates and Enhanced Photoactivity. ChemistrySelect 2016. [DOI: 10.1002/slct.201601412] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- N. B. Sumina
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 001 India
| | - S. Nishanth Kumar
- Agroprocessing and Natural Products Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - R. Achu
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - B. S. Dileep Kumar
- Agroprocessing and Natural Products Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - Alok K Ray
- Laser & Plasma Technology Division; Bhabha Atomic Research Centre; Mumbai - 400 085 India
| | - K. G. K. Warrier
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
| | - Saju Pillai
- Functional Materials, Materials Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (NIIST); Thiruvananthapuram - 695 019 Kerala India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 001 India
| |
Collapse
|
46
|
Stolarczyk JK, Deak A, Brougham DF. Nanoparticle Clusters: Assembly and Control Over Internal Order, Current Capabilities, and Future Potential. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5400-24. [PMID: 27411644 DOI: 10.1002/adma.201505350] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/08/2016] [Indexed: 05/18/2023]
Abstract
The current state of the art in the use of colloidal methods to form nanoparticle assemblies, or clusters (NPCs) is reviewed. The focus is on the two-step approach, which exploits the advantages of bottom-up wet chemical NP synthesis procedures, with subsequent colloidal destabilization to trigger assembly in a controlled manner. Recent successes in the application of functional NPCs with enhanced emergent collective properties for a wide range of applications, including in biomedical detection, surface enhanced Raman scattering (SERS) enhancement, photocatalysis, and light harvesting, are highlighted. The role of the NP-NP interactions in the formation of monodisperse ordered clusters is described and the different assembly processes from a wide range of literature sources are classified according to the nature of the perturbation from the initial equilibrium state (dispersed NPs). Finally, the future for the field and the anticipated role of computational approaches in developing next-generation functional NPCs are briefly discussed.
Collapse
Affiliation(s)
- Jacek K Stolarczyk
- Photonics and Optoelectronics Group, Department of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Amalienstrasse 54, 80799, Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstrasse 4, Munich, 80799, Germany
| | - Andras Deak
- Institute for Technical Physics and Materials Science, HAS Centre for Energy Research, P.O. Box 49, H-1525, Budapest, Hungary
| | - Dermot F Brougham
- National Institute for Cellular Biotechnology, School of Chemical Sciences, Dublin City, Glasnevin, Dublin 9, Ireland
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| |
Collapse
|
47
|
Zhang P, Tachikawa T, Fujitsuka M, Majima T. In Situ Fluorine Doping of TiO2 Superstructures for Efficient Visible-Light Driven Hydrogen Generation. CHEMSUSCHEM 2016; 9:617-23. [PMID: 26871554 DOI: 10.1002/cssc.201501558] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Indexed: 05/12/2023]
Abstract
With the aid of breakthroughs in nanoscience and nanotechnology, it is imperative to develop metal oxide semiconductors through visible light-driven hydrogen generation. In this study, TiOF2 was incorporated as an n-type F-dopant source to TiO2 mesocrystals (TMCs) with visible-light absorption during the topotactic transformation. The crystal growth, structural change, and dynamic morphological evolution, from the initial intermediate NH4 TiOF3 to HTiOF3, TiOF2, and F-doped TMCs, were verified through in situ temperature-dependent techniques to elucidate the doping mechanism from intermediate TiOF2. The visible-light efficiencies of photocatalytic hydrogen were dependent on the contents of the dopant as compared with the pure TMC and a controled reference. Using femtosecond time-resolved diffuse reflectance spectroscopy, the charge-transfer dynamics were monitored to confirm the improvement of charge separation after doping.
Collapse
Affiliation(s)
- Peng Zhang
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Takashi Tachikawa
- Department of Chemistry, Graduate School of Science, Kobe University.
- PRESTO (Japan) Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka, 567-0047, Japan.
| |
Collapse
|
48
|
Tachikawa T, Ochi T, Kobori Y. Crystal-Face-Dependent Charge Dynamics on a BiVO4 Photocatalyst Revealed by Single-Particle Spectroelectrochemistry. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00234] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Takashi Tachikawa
- Department
of Chemistry, Graduate School of Science, Kobe University, 1-1
Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
- PRESTO, Japan
Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
| | - Tomoya Ochi
- Department
of Chemistry, Graduate School of Science, Kobe University, 1-1
Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Yasuhiro Kobori
- Department
of Chemistry, Graduate School of Science, Kobe University, 1-1
Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| |
Collapse
|
49
|
Ide Y, Inami N, Hattori H, Saito K, Sohmiya M, Tsunoji N, Komaguchi K, Sano T, Bando Y, Golberg D, Sugahara Y. Remarkable Charge Separation and Photocatalytic Efficiency Enhancement through Interconnection of TiO2
Nanoparticles by Hydrothermal Treatment. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510000] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yusuke Ide
- International Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
- Graduate School of Creative Science and Engineering; Waseda University; 1-6-1 Nishiwaseda, Shinjuku-ku Tokyo 169-8050 Japan
| | - Nozomu Inami
- Department of Earth Sciences; Waseda University; 1-6-1 Nishiwaseda, Shinjuku-ku Tokyo 169-8050 Japan
| | - Hideya Hattori
- Graduate School of Engineering; Department of Applied Chemistry; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Kanji Saito
- Department of Earth Sciences; Waseda University; 1-6-1 Nishiwaseda, Shinjuku-ku Tokyo 169-8050 Japan
| | - Minoru Sohmiya
- Department of Earth Sciences; Waseda University; 1-6-1 Nishiwaseda, Shinjuku-ku Tokyo 169-8050 Japan
| | - Nao Tsunoji
- Graduate School of Engineering; Department of Applied Chemistry; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Kenji Komaguchi
- Graduate School of Engineering; Department of Applied Chemistry; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Tsuneji Sano
- Graduate School of Engineering; Department of Applied Chemistry; Hiroshima University; 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Yoshio Bando
- International Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
| | - Dmitri Golberg
- International Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
| | - Yoshiyuki Sugahara
- Graduate School of Creative Science and Engineering; Waseda University; 1-6-1 Nishiwaseda, Shinjuku-ku Tokyo 169-8050 Japan
- Department of Applied Chemistry; School of Advanced Science and Engineering; Waseda University; 3-4-1 Ohkubo, Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology; Waseda University; 2-8-26 Nishiwaseda, Shinjuku-ku Tokyo 169-0051 Japan
| |
Collapse
|
50
|
Ide Y, Inami N, Hattori H, Saito K, Sohmiya M, Tsunoji N, Komaguchi K, Sano T, Bando Y, Golberg D, Sugahara Y. Remarkable Charge Separation and Photocatalytic Efficiency Enhancement through Interconnection of TiO2 Nanoparticles by Hydrothermal Treatment. Angew Chem Int Ed Engl 2016; 55:3600-5. [PMID: 26891152 DOI: 10.1002/anie.201510000] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/28/2016] [Indexed: 11/08/2022]
Abstract
Although tremendous effort has been directed to synthesizing advanced TiO2 , it remains difficult to obtain TiO2 exhibiting a photocatalytic efficiency higher than that of P25, a benchmark photocatalyst. P25 is composed of anatase, rutile, and amorphous TiO2 particles, and photoexcited electron transfer and subsequent charge separation at the anatase-rutile particle interfaces explain its high photocatalytic efficiency. Herein, we report on a facile and rational hydrothermal treatment of P25 to selectively convert the amorphous component into crystalline TiO2 , which is deposited between the original anatase and rutile particles to increase the particle interfaces and thus enhance charge separation. This process produces a new TiO2 exhibiting a considerably enhanced photocatalytic efficiency. This method of synthesizing this TiO2 , inspired by a recently burgeoning zeolite design, promises to make TiO2 applications more feasible and effective.
Collapse
Affiliation(s)
- Yusuke Ide
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan. .,Graduate School of Creative Science and Engineering, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo, 169-8050, Japan.
| | - Nozomu Inami
- Department of Earth Sciences, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo, 169-8050, Japan
| | - Hideya Hattori
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Kanji Saito
- Department of Earth Sciences, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo, 169-8050, Japan
| | - Minoru Sohmiya
- Department of Earth Sciences, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo, 169-8050, Japan
| | - Nao Tsunoji
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Kenji Komaguchi
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Tsuneji Sano
- Graduate School of Engineering, Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
| | - Yoshio Bando
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Dmitri Golberg
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yoshiyuki Sugahara
- Graduate School of Creative Science and Engineering, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo, 169-8050, Japan. .,Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, Japan. .,Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo, 169-0051, Japan.
| |
Collapse
|