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Badr HO, Barsoum MW. Hydroxide-Derived Nanostructures: Scalable Synthesis, Characterization, Properties, and Potential Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402012. [PMID: 38722144 DOI: 10.1002/adma.202402012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/18/2024] [Indexed: 05/28/2024]
Abstract
Metal oxide nanostructures have received an increasing attention owing to their unique chemical and physical properties along with their widespread applications in various fields. This article provides an overview of the recent discovery - christened Hydroxides-Derived Nanostructures, or HDNs - in which hydroxide aqueous solutions (mostly tetramethylammonium hydroxide, TMAH) are reacted at temperatures < 100 °C and under atmospheric pressure with various metal-containing precursors to scalably prepare novel metal oxide nanostructures. In one case, a dozen commercial and earth abundant Ti-containing powders such as binary carbides, nitrides, borides, among others, are converted into new, 1D TiO2-based lepidocrocite (1DL) nanofilaments (NFs). Application-wise, the 1DLs show outstanding performance in a number of energy, environmental, and biomedical fields such as photo- and electrocatalysis, water splitting, lithium-sulfur and lithium-ion batteries, water purification, dye degradation, cancer therapy, and polymer composites. In addition to 1DL, the HDNs family encompasses other metal oxides nanostructures including magnetic Fe3O4 nanoparticles and MnO2 birnessite-based crystalline 2D flakes. The latter showed promise in electrochemical energy conversion and storage applications. The developed recipe provides a new vista in the molecular self-assembly synthesis of nanomaterials that can advance the field with a library of novel nanostructures with substantial implications in a multitude of fields.
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Affiliation(s)
- Hussein O Badr
- Department of Material Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Michel W Barsoum
- Department of Material Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
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Han X, Jiang M, Li H, Li R, Sulaiman NHM, Zhang T, Li H, Zheng L, Wei J, He L, Zhou X. Upcycle polyethylene terephthalate waste by photoreforming: Bifunction of Pt cocatalyst. J Colloid Interface Sci 2024; 665:204-218. [PMID: 38522160 DOI: 10.1016/j.jcis.2024.03.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/28/2024] [Accepted: 03/12/2024] [Indexed: 03/26/2024]
Abstract
Upcycle polyethylene terephthalate (PET) waste by photoreforming (PR) is a sustainable and green approach to tackle environmental problems but with challenges to obtain valuable oxidation products and high purity hydrogen simultaneously. Noble metal cocatalysts are essential to enhance the overall PR reaction efficacy. In this work, TiO2 nanotubes (TiO2 NTs) decorated with single Pt atoms (Pt1/TiO2) or Pt nanoparticles (PtNPs/TiO2) are used in the photoreforming reaction (in one batch), and the oxidation products from ethylene glycol (EG, hydrolysed product of PET) in liquid phase and hydrogen are detected. With Pt1/TiO2, EG is oxidized to glyoxal, glyoxylate or lactate, and hydrogen evolution rate (r H2) reaches 51.8 μmol⋅h-1⋅gcat-1, that is 30 times higher than that of TiO2. For PtNPs/TiO2 (size of Pt NPs: 1.97 nm), hydrogen evolution reaches 219.1 μmol⋅h-1⋅gcat-1, but with the oxidation product of acetate only. DFT calculation demonstrates that for Pt NPs, the reaction path for hydrogen evolution is preferred thermodynamically, due to the formation of Schottky junction. On the oxidation of EG, theoretical and spectroscopic analysis suggest that bidentate adsorption of EG at the interface is facile on Pt1/TiO2, compared to that on PtNPs/TiO2 (two Pt sites), but oxidation products, adsorb less strongly, compared to PtNPs/TiO2, that eventually regulates the distribution of oxidation products. The results thus demonstrate the bifunctions of Pt in the PR reaction, i.e., electron transfer mediator for hydrogen evolution and reactive sites for molecules adsorption. The oxidation reaction is dominated by the adsorption-desorption behavior of molecules but the reduction reaction is controlled by the electron transfer. In addition, acidification of pretreated PET alkaline solution achieves separation of pure terephthalic acid (PTA), which further improves the reaction efficiency possibly by offering high density of active sites and acidic environment. Our work thus demonstrates that to upcycle PET plastics, an optimized process can be reached by atomic design of photocatalysts and proper treatment on the plastic wastes.
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Affiliation(s)
- Xiaochi Han
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, PR China
| | - Ming Jiang
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, PR China
| | - Huaxing Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, PR China
| | - Rongjie Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, PR China
| | - Nashwan H M Sulaiman
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, PR China
| | - Tao Zhang
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, PR China
| | - Hongjiao Li
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, PR China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Jiake Wei
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
| | - Lirong He
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, PR China
| | - Xuemei Zhou
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, PR China.
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Ouyang J, Peng Y, Zhou W, Liang X, Wang G, Zhang Q, Yuan B. The Role of Oxygen Vacancies in Phase Transition and the Optical Absorption Properties within Nanocrystalline ZrO 2. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:967. [PMID: 38869592 PMCID: PMC11173411 DOI: 10.3390/nano14110967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Zirconia (ZrO2) nanoparticles were synthesized using a solvothermal method under varying synthesis conditions, namely acidic, neutral, and alkaline. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were leveraged to investigate the phase evolution and topographical features in detail. The resulting crystal phase structures and grain sizes exhibited substantial variation based on these conditions. Notably, the acidic condition fostered a monoclinic phase in ZrO2, while the alkaline condition yielded a combination of tetragonal and monoclinic phases. In contrast, ZrO2 obtained under neutral conditions demonstrated a refinement in grain sizes, constrained within a 1 nm scale upon an 800 °C thermal treatment. This was accompanied by an important transformation from a monoclinic phase to tetragonal phase in the ZrO2. Furthermore, a rigorous examination of XPS data and a UV-visible spectrometer (UV-vis) analysis revealed the significant role of oxygen vacancies in phase stabilization. The notable emergence of new energy bands in ZrO2, in stark contrast to the intrinsic bands observed in a pure monoclinic sample, are attributed to these oxygen vacancies. This research offers valuable insights into the novel energy bands, phase stability, and optical absorption properties influenced by oxygen vacancies in ZrO2. Moreover, it proposes an innovative energy level model for zirconia, underpinning its applicability in diverse technological areas.
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Affiliation(s)
- Jing Ouyang
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Yonghui Peng
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Wentao Zhou
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Xianfeng Liang
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Gang Wang
- State Key Laboratory of Advanced Refractories, Luoyang 471039, China; (G.W.); (Q.Z.)
| | - Qi Zhang
- State Key Laboratory of Advanced Refractories, Luoyang 471039, China; (G.W.); (Q.Z.)
| | - Bo Yuan
- State Key Laboratory of Advanced Refractories, Luoyang 471039, China; (G.W.); (Q.Z.)
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Zang L, Zhao C, Hu X, Tao J, Chen S, Chu J. Emerging Trends in Electron Transport Layer Development for Stable and Efficient Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400807. [PMID: 38573941 DOI: 10.1002/smll.202400807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/11/2024] [Indexed: 04/06/2024]
Abstract
Perovskite solar cells (PSCs) stand at the forefront of photovoltaic research, with current efficiencies surpassing 26.1%. This review critically examines the role of electron transport materials (ETMs) in enhancing the performance and longevity of PSCs. It presents an integrated overview of recent advancements in ETMs, like TiO2, ZnO, SnO2, fullerenes, non-fullerene polymers, and small molecules. Critical challenges are regulated grain structure, defect passivation techniques, energy level alignment, and interfacial engineering. Furthermore, the review highlights innovative materials that promise to redefine charge transport in PSCs. A detailed comparison of state-of-the-art ETMs elucidates their effectiveness in different perovskite systems. This review endeavors to inform the strategic enhancement and development of n-type electron transport layers (ETLs), delineating a pathway toward the realization of PSCs with superior efficiency and stability for potential commercial deployment.
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Affiliation(s)
- Lele Zang
- Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Chunhu Zhao
- Hunan Provincial Key Laboratory of Carbon Neutrality and Intelligent, School of Resource & Environment, Hunan University of Technology and Business, Changsha, 410205, China
| | - Xiaobo Hu
- Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Jiahua Tao
- Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
- Key Laboratory of Polar Materials and Devices, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing, 401120, China
| | - Shaoqiang Chen
- Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Junhao Chu
- Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
- Key Laboratory of Polar Materials and Devices, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
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Ruan X, Li S, Huang C, Zheng W, Cui X, Ravi SK. Catalyzing Artificial Photosynthesis with TiO 2 Heterostructures and Hybrids: Emerging Trends in a Classical yet Contemporary Photocatalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305285. [PMID: 37818725 DOI: 10.1002/adma.202305285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/21/2023] [Indexed: 10/13/2023]
Abstract
Titanium dioxide (TiO2) stands out as a versatile transition-metal oxide with applications ranging from energy conversion/storage and environmental remediation to sensors and optoelectronics. While extensively researched for these emerging applications, TiO2 has also achieved commercial success in various fields including paints, inks, pharmaceuticals, food additives, and advanced medicine. Thanks to the tunability of their structural, morphological, optical, and electronic characteristics, TiO2 nanomaterials are among the most researched engineering materials. Besides these inherent advantages, the low cost, low toxicity, and biocompatibility of TiO2 nanomaterials position them as a sustainable choice of functional materials for energy conversion. Although TiO2 is a classical photocatalyst well-known for its structural stability and high surface activity, TiO2-based photocatalysis is still an active area of research particularly in the context of catalyzing artificial photosynthesis. This review provides a comprehensive overview of the latest developments and emerging trends in TiO2 heterostructures and hybrids for artificial photosynthesis. It begins by discussing the common synthesis methods for TiO2 nanomaterials, including hydrothermal synthesis and sol-gel synthesis. It then delves into TiO2 nanomaterials and their photocatalytic mechanisms, highlighting the key advancements that have been made in recent years. The strategies to enhance the photocatalytic efficiency of TiO2, including surface modification, doping modulation, heterojunction construction, and synergy of composite materials, with a specific emphasis on their applications in artificial photosynthesis, are discussed. TiO2-based heterostructures and hybrids present exciting opportunities for catalyzing solar fuel production, organic degradation, and CO2 reduction via artificial photosynthesis. This review offers an overview of the latest trends and advancements, while also highlighting the ongoing challenges and prospects for future developments in this classical yet rapidly evolving field.
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Affiliation(s)
- Xiaowen Ruan
- School of Energy and Environment, City Universitsy of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Shijie Li
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin University, Changchun, 130012, China
| | - Chengxiang Huang
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin University, Changchun, 130012, China
| | - Weitao Zheng
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin University, Changchun, 130012, China
| | - Xiaoqiang Cui
- State Key Laboratory of Automotive Simulation and Control, School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, Jilin University, Changchun, 130012, China
| | - Sai Kishore Ravi
- School of Energy and Environment, City Universitsy of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
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Mao X, Hao C. Recent advances in the use of composite titanium dioxide nanomaterials in the food industry. J Food Sci 2024; 89:1310-1323. [PMID: 38343295 DOI: 10.1111/1750-3841.16968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/08/2023] [Accepted: 01/18/2024] [Indexed: 03/12/2024]
Abstract
Titanium dioxide (TiO2 ) nanomaterials have attracted significant attention due to their good biocompatibility and potential for multifunctional applications. In the last few years, there has been growing interest in the use of TiO2 nanomaterials in the food industry. However, a systematic review of the synthesis methods, properties, and applications of TiO2 nanomaterials in the food industry is lacking. In this review, we provide a summary of the synthesis and properties of TiO2 nanomaterials and their composites, with a focus on their applications in the food industry. We also discuss the potential benefits and risks of using TiO2 nanomaterials in food applications. This review aims to promote food innovation and improve food quality and safety.
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Affiliation(s)
- Xixi Mao
- School of Marxism, Jiangnan University, Wuxi, Jiangsu, China
| | - Changlong Hao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
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Yang S, Wang B, Zhao R, Wei L, Su J. Enhanced photoelectrochemical performance of NiS-modified TiO 2 nanorods with a surface charge accumulation facet. Dalton Trans 2023; 52:16442-16450. [PMID: 37872811 DOI: 10.1039/d3dt02698a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Photoelectrochemical (PEC) water splitting for hydrogen production technology is considered as one of the most promising solutions to energy shortage and environmental remediation. TiO2/NiS nanorod arrays were successfully prepared using hydrothermal deposition followed by the successive ionic layer adsorption and reaction (SILAR) method. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and photoluminescence (PL) spectra characterization studies indicate the successful deposition of NiS on TiO2 NRs. The NiS deposition on TiO2 was optimized by controlling the impregnation cycle. The optimal sample exhibits a photocurrent density of 1.16 mA cm-2 at 0.6 V vs. Ag/AgCl, which is a 1.9-fold enhancement over that of pristine TiO2 nanorod arrays. The enhanced photoelectrochemical performance can be attributed to two aspects. On the one hand, the (101) crystal plane of rutile TiO2 is the facet where photogenerated holes accumulate and is an efficient active plane for the oxygen evolution reaction; on the other hand, NiS is a narrow band gap semiconductor, and its deposition on TiO2 nanorods can further promote the separation and transport of photogenerated charge carriers.
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Affiliation(s)
- Suyi Yang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China.
| | - Baoyuan Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China.
| | - Rui Zhao
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China.
| | - Liting Wei
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China.
| | - Jinzhan Su
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China.
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Zhou X, Wu SM, Schmuki P. Spontaneous Dewetting of Au-Thin Layers on Oxide- and Fluorine-Terminated Single Crystalline Anatase and Efficient Use in Photocatalytic H 2 Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303306. [PMID: 37357164 DOI: 10.1002/smll.202303306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/26/2023] [Indexed: 06/27/2023]
Abstract
In the present work, the spontaneous dewetting of thin Au layers on single crystalline anatase nanosheets into narrow-disperse Au nanoparticles is investigated. Patterns of the Au particles can be formed on the main facets of anatase that provide a high co-catalytic activity for photocatalytic generation of H2 . Dewetting is distinctly influenced by the respective facets (001) and (101), the deposit thickness, and secondary thermal dewetting, but most strongly by the surface termination of the nanosheets. Fluoride termination not only leads to an enhanced Au-phobic behavior but strongly affects the co-catalytic activity for photocatalytic generation of H2 . While fluoride termination with or without Au decoration is detrimental for hole transfer, the interplay of the Au co-catalyst and surface fluoride yields highly beneficial effect for electron transfer. This results in a three-times higher photocatalytic H2 production for the F-terminated surface. The findings suggest that dewetting of Au on surface fluorinated TiO2 is an effective way to modulate surface dewetting and achieve a strongly enhanced photocatalytic activity.
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Affiliation(s)
- Xin Zhou
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058, Erlangen, Germany
| | - Si-Ming Wu
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058, Erlangen, Germany
| | - Patrik Schmuki
- Department of Materials Science WW4-LKO, University of Erlangen-Nuremberg, Martensstrasse 7, 91058, Erlangen, Germany
- Regional Centre of Advanced Technologies and Materials, Palacký University Olomouc, Šlechtitelů 241/27, Olomouc, 77900, Czech Republic
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Gaur A, Porwal C, Boukhris I, Chauhan VS, Vaish R. Review on Multicatalytic Behavior of Ba 0.85Ca 0.15Ti 0.9Zr 0.1O 3 Ceramic. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5710. [PMID: 37630001 PMCID: PMC10456545 DOI: 10.3390/ma16165710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/14/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023]
Abstract
Ferroelectric materials are known to possess multicatalytic abilities that are nowadays utilized for removing organic pollutants from water via piezocatalysis, photocatalysis, piezo-photocatalysis, and pyrocatalysis processes. The Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZTO) ceramic is one such ferroelectric composition that has been extensively studied for electrical and electronic applications. Furthermore, the BCZTO ceramic has also shown remarkable multicatalytic performance in water-cleaning applications. The present review explores the potentiality of BCZTO for water-cleaning and bacterial-killing applications. It also highlights the fundamentals of ferroelectric ceramics, the importance of electric poling, and the principles underlying piezocatalysis, photocatalysis, and pyrocatalysis processes in addition to the multicatalytic capability of ferroelectric BCZTO ceramic.
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Affiliation(s)
- Akshay Gaur
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand 175005, Himachal Pradesh, India; (A.G.); (C.P.)
| | - Chirag Porwal
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand 175005, Himachal Pradesh, India; (A.G.); (C.P.)
| | - Imed Boukhris
- Department of Physics, Faculty of Science, King Khalid University, Abha 62529, Saudi Arabia;
| | - Vishal Singh Chauhan
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand 175005, Himachal Pradesh, India; (A.G.); (C.P.)
| | - Rahul Vaish
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand 175005, Himachal Pradesh, India; (A.G.); (C.P.)
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Al-Attafi K, Mezher HA, Hammadi AF, Al-Keisy A, Hamzawy S, Qutaish H, Kim JH. Solvothermally Synthesized Hierarchical Aggregates of Anatase TiO 2 Nanoribbons/Nanosheets and Their Photocatalytic-Photocurrent Activities. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1940. [PMID: 37446456 DOI: 10.3390/nano13131940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023]
Abstract
Hierarchical aggregates of anatase TiO2 nanoribbons/nanosheets (TiO2-NR) and anatase TiO2 nanoparticles (TiO2-NP) were produced through a one-step solvothermal reaction using acetic acid or ethanol and titanium isopropoxide as solvothermal reaction systems. The crystalline structure, crystalline phase, and morphologies of synthesized materials were characterized using several techniques. According to our findings, both TiO2-NR and TiO2-NP were found to have polycrystalline structures, with pure anatase phases. TiO2-NR has a three-dimensional hierarchical structure made up of aggregates of TiO2 nanoribbons/nanosheets, while TiO2-NP has a nanoparticulate structure. The photocatalytic and photocurrent activities for TiO2-NR and TiO2-NP were investigated and compared with the widely used commercial TiO2 (P25), which consists of anatase/rutile TiO2 nanoparticles, as a reference material. Our findings showed that TiO2-NR has higher photocatalytic and photocurrent performance than TiO2-NP, which are both, in turn, higher than those of P25. Our developed solvothermal method was shown to produce a pure anatase TiO2 phase for both synthesized structures, without using any surfactants or any other assisted templates. This developed solvothermal approach, and its anatase TiO2 nanostructure output, has promising potential for a wide range of energy harvesting applications, such as water pollution treatment and solar cells.
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Affiliation(s)
- Kadhim Al-Attafi
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
- Department of Physics, College of Science, University of Kerbala, Karbala 56001, Iraq
| | - Hamza A Mezher
- Department of Physics, College of Science, University of Kerbala, Karbala 56001, Iraq
| | - Ali Faraj Hammadi
- Department of Mechanical Engineering, College of Engineering, Wasit University, Wasit 52001, Iraq
| | - Amar Al-Keisy
- Nanotechnology and Advanced Material Research Center, University of Technology-Iraq, Baghdad 10066, Iraq
| | - Sameh Hamzawy
- Intelligent Polymer Research Institute (IPRI), Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
- Solar Research Laboratory, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics, Helwan 11421, Cairo, Egypt
| | - Hamzeh Qutaish
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Jung Ho Kim
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
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Ji Z, Sun M, Chen T, Shen X, Xu X, Zhong Y, Wang D, Ma J, Chen B, Yi Z, Xu X. Ordered growth of metal oxides in patterned multi-angle microstructures. RSC Adv 2023; 13:16559-16566. [PMID: 37274411 PMCID: PMC10234148 DOI: 10.1039/d3ra01423a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/13/2023] [Indexed: 06/06/2023] Open
Abstract
Herein, we report a facile method combining top-down patterning transfer and bottom-up nanorod growth for preparing large-area and ordered TiO2 nanorod arrays. Pre-crystallization seeding was patterned with nanostructured morphologies via interfacial tension-driven precursor solution scattering on various types and period templates. This is a widely applicable strategy for capillary force-driven interfacial patterns, which also shows great operability in complex substrate morphologies with multiple-angle mixing. Moreover, the customized patterned lithographic templates containing English words, Arabic numerals, and Chinese characters are used to verify the applicability and controllability of this hybrid method. In general, our work provides a versatile strategy for the low-cost and facile preparation of hydrothermally growable metal oxide (e.g., ZnO and MnO2) nanostructures with potential applications in the fields of microelectronic devices, photoelectric devices, energy storage, and photocatalysis.
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Affiliation(s)
- Zhenkai Ji
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Min Sun
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
| | - Tiantian Chen
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
| | - Xinyi Shen
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
| | - Xiuzhen Xu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
| | - Yan Zhong
- Shanghai Highway Investment Construction and Development Co., Ltd. Shanghai 200336 China
| | - Dadong Wang
- Shanghai Highway Investment Construction and Development Co., Ltd. Shanghai 200336 China
| | - Jiwei Ma
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
| | - Bo Chen
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
| | - Zhiguo Yi
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiaobin Xu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai. Key Lab. of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Institute for Advanced Study, Tongji University Shanghai 201804 China
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12
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Si P, Zheng Z, Gu Y, Geng C, Guo Z, Qin J, Wen W. Nanostructured TiO 2 Arrays for Energy Storage. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103864. [PMID: 37241492 DOI: 10.3390/ma16103864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/14/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023]
Abstract
Because of their extensive specific surface area, excellent charge transfer rate, superior chemical stability, low cost, and Earth abundance, nanostructured titanium dioxide (TiO2) arrays have been thoroughly explored during the past few decades. The synthesis methods for TiO2 nanoarrays, which mainly include hydrothermal/solvothermal processes, vapor-based approaches, templated growth, and top-down fabrication techniques, are summarized, and the mechanisms are also discussed. In order to improve their electrochemical performance, several attempts have been conducted to produce TiO2 nanoarrays with morphologies and sizes that show tremendous promise for energy storage. This paper provides an overview of current developments in the research of TiO2 nanostructured arrays. Initially, the morphological engineering of TiO2 materials is discussed, with an emphasis on the various synthetic techniques and associated chemical and physical characteristics. We then give a brief overview of the most recent uses of TiO2 nanoarrays in the manufacture of batteries and supercapacitors. This paper also highlights the emerging tendencies and difficulties of TiO2 nanoarrays in different applications.
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Affiliation(s)
- Pingyun Si
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Zhilong Zheng
- Zhanjiang Power Supply Bureau of Guangdong Power Grid Co., Ltd., Zhanjiang 524001, China
| | - Yijie Gu
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Chao Geng
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Zhizhong Guo
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Jiayi Qin
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Wei Wen
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
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13
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Wang S, Wang M, Zhang Y, Wang H, Fei H, Liu R, Kong H, Gao R, Zhao S, Liu T, Wang Y, Ni M, Ciucci F, Wang J. Metal Oxide-Supported Metal Catalysts for Electrocatalytic Oxygen Reduction Reaction: Characterization Methods, Modulation Strategies, and Recent Progress. SMALL METHODS 2023:e2201714. [PMID: 37029582 DOI: 10.1002/smtd.202201714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/25/2023] [Indexed: 06/19/2023]
Abstract
The sluggish kinetics of the oxygen reduction reaction (ORR) with complex multielectron transfer steps significantly limits the large-scale application of electrochemical energy devices, including metal-air batteries and fuel cells. Recent years witnessed the development of metal oxide-supported metal catalysts (MOSMCs), covering single atoms, clusters, and nanoparticles. As alternatives to conventional carbon-dispersed metal catalysts, MOSMCs are gaining increasing interest due to their unique electronic configuration and potentially high corrosion resistance. By engineering the metal oxide substrate, supported metal, and their interactions, MOSMCs can be facilely modulated. Significant progress has been made in advancing MOSMCs for ORR, and their further development warrants advanced characterization methods to better understand MOSMCs and precise modulation strategies to boost their functionalities. In this regard, a comprehensive review of MOSMCs for ORR is still lacking despite this fast-developing field. To eliminate this gap, advanced characterization methods are introduced for clarifying MOSMCs experimentally and theoretically, discuss critical methods of boosting their intrinsic activities and number of active sites, and systematically overview the status of MOSMCs based on different metal oxide substrates for ORR. By conveying methods, research status, critical challenges, and perspectives, this review will rationally promote the design of MOSMCs for electrochemical energy devices.
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Affiliation(s)
- Siyuan Wang
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Miao Wang
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Yunze Zhang
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Hongsheng Wang
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Hao Fei
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Ruoqi Liu
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Hui Kong
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Ruijie Gao
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Siyuan Zhao
- Department of Building and Real Estate, Research Institute for Sustainable Urban Development (RISUD) & Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Tong Liu
- Department of Building and Real Estate, Research Institute for Sustainable Urban Development (RISUD) & Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Yuhao Wang
- Department of Mechanical and Aerospace Engineering, HKUST, New Territories, Hong Kong SAR, 999077, P. R. China
| | - Meng Ni
- Department of Building and Real Estate, Research Institute for Sustainable Urban Development (RISUD) & Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Francesco Ciucci
- Department of Mechanical and Aerospace Engineering, HKUST, New Territories, Hong Kong SAR, 999077, P. R. China
- HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute, Futian, Shenzhen, 518048, P. R. China
| | - Jian Wang
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, P. R. China
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14
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Qian M, Zhang W, Luo G, Wu C, Qin W. Air-stabilized pore structure engineering of antimony-based anode by electrospinning for potassium ion batteries. J Colloid Interface Sci 2023; 633:352-361. [PMID: 36459940 DOI: 10.1016/j.jcis.2022.11.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022]
Abstract
Due to the large ionic radius and associated slow reaction kinetics of potassium ions, it is a major challenge to find suitable anode materials for potassium-ion batteries. Herein, we design porous antimony-based nanofibres via a simple, low-cost and large scalable method to promote the electrochemical performance of potassium-ion batteries. Unlike those traditionally treated in inert atmospheres, using the different decomposition processes of polyacrylonitrile and polyvinylpyrrolidone in air, we obtain antimony trioxide embedded in porous carbon nanofibres (Sb2O3@PCN). The porous structure can promote the permeation of electrolyte into electrode materials and increase the active sites of the redox reaction. The porous carbonaceous fibre skeleton structure establishes a fast ion transport channel and enhances the kinetic performance. In a concentrated 5 M potassium bis(fluorosulfonyl)-imide/dimethyl carbonate electrolyte, Sb2O3@PCN exhibits a stable discharge specific capacity of 437.3 mAh g-1 at a current density of 100 mA g-1 after 50 cycles, which is much higher than that treated in a N2 atmosphere (247.5 mAh g-1). This method provides a new approach for the preparation of efficient potassium-ion battery electrode materials.
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Affiliation(s)
- Miaomiao Qian
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Wenzhe Zhang
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Gang Luo
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Chun Wu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Wei Qin
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China.
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15
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Stroe M, Burlanescu T, Paraschiv M, Lőrinczi A, Matei E, Ciobanu R, Baibarac M. Optical and Structural Properties of Composites Based on Poly(urethane) and TiO 2 Nanowires. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16041742. [PMID: 36837374 PMCID: PMC9959890 DOI: 10.3390/ma16041742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 05/27/2023]
Abstract
This article's objective is the synthesis of new composites based on thermoplastic polyurethane (TPU) and TiO2 nanowires (NWs) as free-standing films, highlighting their structural and optical properties. The free-standing TPU-TiO2 NW films were prepared by a wet chemical method accompanied by a thermal treatment at 100 °C for 1 h, followed by air-drying for 2 h. X-ray diffraction (XRD) studies indicated that the starting commercial TiO2 NW sample contains TiO2 tetragonal anatase (A), cubic Ti0.91O (C), and orthorhombic Ti2O3 (OR), as well as monoclinic H2Ti3O7 (M). In the presence of TPU, an increase in the ratio between the intensities of the diffraction peaks at 43.4° and 48° belonging to the C and A phases of titanium dioxide, respectively, is reported. The increase in the intensity of the peak at 43.4° is explained to be a consequence of the interaction of TiO2 NWs with PTU, which occurs when the formation of suboxides takes place. The variation in the ratio of the absorbance of the IR bands peaked at 765-771 cm-1 and 3304-3315 cm-1 from 4.68 to 4.21 and 3.83 for TPU and the TPU-TiO2 NW composites, respectively, with TiO2 NW concentration equal to 2 wt.% and 17 wt.%, indicated a decrease in the higher-order aggregates of TPU with a simultaneous increase in the hydrogen bonds established between the amide groups of TPU and the oxygen atoms of TiO2 NWs. The decrease in the ratio of the intensity of the Raman lines peaked at 658 cm-1 and 635 cm-1, which were assigned to the vibrational modes Eg in TiO2 A and Eg in H2Ti3O7 (ITiO2-A/IH2Ti3O7), respectively, from 3.45 in TiO2 NWs to 0.94-0.96 in the TPU-TiO2 NW composites, which indicates that the adsorption of TPU onto TiO2 NWs involves an exchange reaction of TPU in the presence of TiO2 NWs, followed by the formation of new hydrogen bonds between the -NH- of the amide group and the oxygen atoms of TixO2x-mn, Ti2O3, and Ti0.91O. Photoluminescence (PL) studies highlighted a gradual decrease in the intensity of the TPU emission band, which is situated in the spectral range 380-650 nm, in the presence of TiO2 NW. After increasing the TiO2 NW concentration in the TPU-TiO2 NW composite mass from 0 wt.% to 2 wt.% and 17 wt.%, respectively, a change in the binding angle of the TPU onto the TiO2 NW surface from 12.6° to 32° and 45.9°, respectively, took place.
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Affiliation(s)
- Malvina Stroe
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest, Atomistilor Street 405A, 077125 Bucharest, Romania
| | - Teodora Burlanescu
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest, Atomistilor Street 405A, 077125 Bucharest, Romania
| | - Mirela Paraschiv
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest, Atomistilor Street 405A, 077125 Bucharest, Romania
| | - Adam Lőrinczi
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest, Atomistilor Street 405A, 077125 Bucharest, Romania
| | - Elena Matei
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest, Atomistilor Street 405A, 077125 Bucharest, Romania
| | - Romeo Ciobanu
- SC All Green SRL, 8 George Cosbuc Str., 700470 Iasi, Romania
- Electrical Engineering Faculty, Gheorghe Asachi Technical University of Iasi, Dimitrie Mangeron Bd. 67, 700050 Iasi, Romania
| | - Mihaela Baibarac
- National Institute of Materials Physics, P.O. Box MG-7, Bucharest, Atomistilor Street 405A, 077125 Bucharest, Romania
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16
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Park YJ, Jeon YI, Yang IS, Choo H, Suh WS, Ju SY, Kim HS, Pan JH, Lee WI. Selective Control of Novel TiO 2 Nanorods: Excellent Building Blocks for the Electron Transport Layer of Mesoscopic Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9447-9456. [PMID: 36752619 DOI: 10.1021/acsami.2c21731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Novel TiO2 nanorods (NRs) with various lengths of 70-200 nm and uniform widths of 46-48 nm are selectively synthesized by a solvothermal reaction under a basic environment. The length of TiO2 NRs is reproducibly tuned by varying the concentration of tetramethylammonium hydroxide (TMAH), while the NRs in the pure anatase phase are grown in the [001] direction, caused by the preferential binding affinity of TMAH to the TiO2 (101) facet. TiO2 NRs of various lengths are then applied to form the electron transporting layer (ETL) of mesoscopic perovskite solar cells (PSCs). We found that PSC devices with NRs exhibit superior photovoltaic (PV) performance to those with conventional 46 nm-sized TiO2 nanoparticles (NP46). Particularly, the PSC with TiO2 NRs of 110 nm length (NR110) exhibits the optimum PV conversion efficiency (PCE): the average PCE is 22.64% with a VOC of 1.137 V, a JSC of 24.60 mA·cm-2, and a FF of 80.96%, while the champion PCE is 23.18%. In addition, the PSC with NR110 (PSC-NR110) reveals significantly improved long-term stability in air with a relative humidity of 40-50%. In 1000 h, its PCE is reduced by only 9% whereas that of PSC with NP46 decreases by 25%. The PSC properties analyzed by impedance spectroscopy and J-V curve measurements under dark conditions and at various light intensities provide evidence that PSC-NR110 has fewer defects and shows significantly reduced charge recombination. We discuss the advantages of NR structures in preparing the ETL of PSC devices and also explain why the charge recombination is suppressed.
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Affiliation(s)
- You Jin Park
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - Young In Jeon
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - In Seok Yang
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - Hyunsue Choo
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - Woo Seok Suh
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - So-Yeon Ju
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - Hui-Seon Kim
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
| | - Jia Hong Pan
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Wan In Lee
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Korea
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17
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Ni Z, Zhu Z, Ji Y, He X, Fu X, Yang W, Wang Y. Biomimetic Microadhesion Guided Instant Spinning. NANO LETTERS 2022; 22:9396-9404. [PMID: 36410737 DOI: 10.1021/acs.nanolett.2c03297] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Animals create high-performance fibers at natural ambient conditions via a unique spinning process. In contrast, the spinning technologies developed by human beings are usually clumsy and require sophisticated skills. Here, inspired by adhesion-based silkworm spinning, we report a microadhesion guided (MAG) spinning technology for instant and on-demand fabrication of micro/nanofibers. Enabled by the adhesion between the spinning fluids and the microneedles, the MAG spinning can generate micro/nanofibers with programmable morphology. By further mimicking the head movement of the silkworm spinning, the MAG technology is extended with three different modes: straight, vibratory, and twisted spinning, which generate oriented fibers, hierarchical cross-linked fibers, and all-in-one fibers, respectively. Due to the prevalence of microadhesion and its unprecedented flexibility in operation, equipment-free MAG spinning is finally realized for instant fiber fabrication by only polymeric foams. Finally, the MAG spinning is demonstrated as a promising instant technology for emergent applications, such as wound dressing.
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Affiliation(s)
- Zhuxi Ni
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
| | - Zhiwei Zhu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
| | - Yuan Ji
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
| | - Xuewei He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
| | - Xuewei Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
| | - Wei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
| | - Yu Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu610065, Sichuan, China
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18
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Joshy D, Narendranath SB, Ismail YA, Periyat P. Recent progress in one dimensional TiO 2 nanomaterials as photoanodes in dye-sensitized solar cells. NANOSCALE ADVANCES 2022; 4:5202-5232. [PMID: 36540125 PMCID: PMC9724613 DOI: 10.1039/d2na00437b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/26/2022] [Indexed: 06/17/2023]
Abstract
Exploiting the vast possibilities of crystal and electronic structural modifications in TiO2 based nanomaterials creatively attracted the scientific community to various energy applications. A dye sensitised solar cell, which converts photons into electricity, is considered a viable solution for the generation of electricity. TiO2 nanomaterials were well accepted as photoanode materials in dye-sensitized solar cells, and possess non-toxicity, high surface area, high electron transport rates, fine tuneable band gap, high resistance to photo corrosion and optimum pore size for better diffusion of dye and electrolyte. This review focuses on various aspects of TiO2 nanomaterials as photoanodes in dye-sensitized solar cells. TiO2 photoanode modification via doping and morphological variations were discussed in detail. The impact of various morphologies on the design of TiO2 photoanodes was particularly stressed.
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Affiliation(s)
- Deepak Joshy
- Department of Chemistry, University of Calicut Kerala 673635 India
| | | | - Yahya A Ismail
- Department of Chemistry, University of Calicut Kerala 673635 India
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19
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Gaur A, Dubey S, Elqahtani ZM, Ahmed SB, Al-Buriahi MSA, Vaish R, Chauhan VS. Effect of Poling on Multicatalytic Performance of 0.5Ba(Zr 0.2Ti 0.8)O 3-0.5(Ba 0.7Sr 0.3)TiO 3 Ferroelectric Ceramic for Dye Degradation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8217. [PMID: 36431702 PMCID: PMC9693922 DOI: 10.3390/ma15228217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Ferroelectric materials with a spontaneous polarization are proven to be potential multicatalysts in water remediation applications. The composition of 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Sr0.3)TiO3 (BST-BZT) was examined for photocatalysis, piezocatalysis, and piezo-photocatalysis processes by degrading an azo dye named methylene blue (MB). Generally, dis-aligned dipoles restrict the catalytic activities due to which the BST-BZT powder sample was poled by the corona poling technique. Coupled piezocatalysis and photocatalysis process, i.e., the piezo-photocatalysis process has shown maximum dye degradation. There was a significant improvement in degradation efficiency by using a poled BST-BZT sample compared to the unpoled sample in all processes, thus the results suggest an extensive scope of poled ferroelectric ceramic powder in the catalysis field.
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Affiliation(s)
- Akshay Gaur
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi Himachal Pradesh, Himachal Pradesh 175005, India
| | - Shivam Dubey
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi Himachal Pradesh, Himachal Pradesh 175005, India
| | - Zainab Mufarreh Elqahtani
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Samia ben Ahmed
- Department of Chemistry, College of Sciences, King Khalid University, P.O. Box 9004, Abha 62529, Saudi Arabia
| | | | - Rahul Vaish
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi Himachal Pradesh, Himachal Pradesh 175005, India
| | - Vishal Singh Chauhan
- School of Mechanical and Materials Engineering, Indian Institute of Technology Mandi Himachal Pradesh, Himachal Pradesh 175005, India
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20
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Zhang P, Tian Z, Kang Y, He B, Zhao Z, Hung CT, Duan L, Chen W, Tang Y, Yu J, Mai L, Li YF, Li W, Zhao D. Sub-10 nm Corrugated TiO 2 Nanowire Arrays by Monomicelle-Directed Assembly for Efficient Hole Extraction. J Am Chem Soc 2022; 144:20964-20974. [DOI: 10.1021/jacs.2c10395] [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)
- Pengfei Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Zhangliu Tian
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Yikun Kang
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Bowen He
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Zaiwang Zhao
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Chin-Te Hung
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Linlin Duan
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Wei Chen
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Yun Tang
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Ye-Fei Li
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Wei Li
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
| | - Dongyuan Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China
- Department of Chemistry and Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China
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Hussain F, Hussain R, Adnan M, Muhammad S, Irshad Z, Khan MU, Yaqoob J, Ayub K. Insights into the nonlinear optical (NLO) response of pure Aum (2 ≥ m ≤ 7) and copper-doped Au m - xCu x clusters. RSC Adv 2022; 12:25143-25153. [PMID: 36199323 PMCID: PMC9449820 DOI: 10.1039/d2ra03664a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022] Open
Abstract
A series of small pure Au m (2 ≥ m ≤ 7) and copper-doped Au m-x Cu x clusters was evaluated by density functional theory (DFT) at the CAM-B3LYP/LANL2DZ level for their geometric, electronic, and nonlinear optical (NLO) properties. The charge transfer for the Au cluster significantly improved by reducing the HOMO-LUMO energy gap from 3.67 eV to 0.91 eV after doping with Cu atoms. The doping of Cu also showed noteworthy impacts on other optical and NLO properties, including a decrease in the excitation energy and increase in the dipole moment and oscillator strength. Furthermore, changes in the linear isotropic and anisotropic polarizabilities (α iso and α aniso) and first and second NLO hyperpolarizabilities (β static, γ static) were also observed in the pure and Cu-doped clusters, which enhanced the NLO response. The nonlinear optical properties of the clusters were evaluated by calculating the static and frequency dependent second- and third-order NLO polarizabilities at 1064 nm wavelength. Among all the doped structures, the Au3Cu1 cluster showed the largest static first hyperpolarizability of β (total) = 4.73 × 103 au, while the Au1Cu6 cluster showed frequency dependent first hyperpolarizability of β (-2w;w,w) = 1.26 × 106 au. Besides this, large static and frequency-dependent second hyperpolarizability values of 6.30 × 105 au and 1.05 × 10 au were exhibited by Cu7 and Au1Cu6, respectively. This study offers an effective approach to design high-performance NLO materials utilizing mixed metal clusters which might have broad applications in the fields of optoelectronics and electronics.
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Affiliation(s)
- Fakhar Hussain
- Department of Chemistry, University of Okara 56300 Pakistan
| | - Riaz Hussain
- Department of Chemistry, University of Okara 56300 Pakistan
| | - Muhammad Adnan
- Graduate School of Energy Science and Technology, Chungnam National University Daejeon 34134 Republic of Korea
| | - Shabbir Muhammad
- Department of Chemistry, College of Science, King Khalid University Abha 61413 P.O. Box 9004 Saudi Arabia
| | - Zobia Irshad
- Department of Chemistry, Chosun University Gwangju 61452 Republic of Korea
| | | | - Junaid Yaqoob
- Department of Chemistry, University of Okara 56300 Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSAT University Abbottabad Pakistan
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22
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Navarro-Gázquez PJ, Muñoz-Portero MJ, Blasco-Tamarit E, Sánchez-Tovar R, García-Antón J. Synthesis and applications of TiO 2/ZnO hybrid nanostructures by ZnO deposition on TiO 2 nanotubes using electrochemical processes. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In recent years, TiO2/ZnO hybrid nanostructures have been attracting the interest of the scientific community due to their excellent photoelectrochemical properties. The main advantage of TiO2/ZnO hybrid nanostructures over other photocatalysts based on semiconductor materials lies in their ability to form heterojunctions in which the valence and conduction bands of both semiconductors are intercalated. This factor produces a decrease in the band gap and the recombination rate and an increase in the light absorption range. The aim of this review is to perform a revision of the main methods to synthesise TiO2/ZnO hybrid nanostructures by ZnO deposition on TiO2 nanotubes using electrochemical processes. Electrochemical synthesis methods provide an easy, fast, and highly efficient route to carry out the synthesis of nanostructures such as nanowires, nanorods, nanotubes, etc. They allow us to control the stoichiometry, thickness and structure mainly by controlling the voltage, time, temperature, composition of the electrolyte, and concentration of monomers. In addition, a study of the most promising applications for TiO2/ZnO hybrid nanostructures has been carried out. In this review, the applications of dye-sensitised solar cell, photoelectrocatalytic degradation of organic compounds, photoelectrochemical water splitting, gas sensors, and lithium-ion batteries have been highlighted.
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Affiliation(s)
- Pedro José Navarro-Gázquez
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
| | - Maria J. Muñoz-Portero
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
| | - Encarna Blasco-Tamarit
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
| | - Rita Sánchez-Tovar
- Departamento de Ingeniería Química, Universitat de Valencia , Av. de las Universitats, s/n, 46100 Burjassot , Spain
| | - José García-Antón
- Instituto Universitario de Seguridad Industrial, Radiofísica y Medioambiental (ISIRYM) , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain
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Wang R, Liu H, Zhang Y, Sun K, Bao W. Integrated Photovoltaic Charging and Energy Storage Systems: Mechanism, Optimization, and Future. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203014. [PMID: 35780491 DOI: 10.1002/smll.202203014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/17/2022] [Indexed: 06/15/2023]
Abstract
As an emerging solar energy utilization technology, solar redox batteries (SPRBs) combine the superior advantages of photoelectrochemical (PEC) devices and redox batteries and are considered as alternative candidates for large-scale solar energy capture, conversion, and storage. In this review, a systematic summary from three aspects, including: dye sensitizers, PEC properties, and photoelectronic integrated systems, based on the characteristics of rechargeable batteries and the advantages of photovoltaic technology, is presented. The matching problem of high-performance dye sensitizers, strategies to improve the performance of photoelectrode PEC, and the working mechanism and structure design of multienergy photoelectronic integrated devices are mainly introduced and analyzed. In particular, the devices and improvement strategies of high-performance electrode materials are analyzed from the perspective of different photoelectronic integrated devices (liquid-based and solid-state-based). Finally, future perspectives are provided for further improving the performance of SPRBs. This work will open up new prospects for the development of high-efficiency photoelectronic integrated batteries.
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Affiliation(s)
- Ronghao Wang
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Hongmin Liu
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Yuhao Zhang
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Kaiwen Sun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Weizhai Bao
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
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24
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Ngo HM, Pawar AU, Tang J, Zhuo Z, Lee DK, Ok KM, Kang YS. Synthesis of Uniform Size Rutile TiO2 Microrods by Simple Molten-Salt Method and Its Photoluminescence Activity. NANOMATERIALS 2022; 12:nano12152626. [PMID: 35957057 PMCID: PMC9370513 DOI: 10.3390/nano12152626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/19/2022] [Accepted: 07/26/2022] [Indexed: 02/01/2023]
Abstract
Uniform-size rutile TiO2 microrods were synthesized by simple molten-salt method with sodium chloride as reacting medium and different kinds of sodium phosphate salts as growth control additives to control the one-dimensional (1-D) crystal growth of particles. The effect of rutile and anatase ratios as a precursor was monitored for rod growth formation. Apart from uniform rod growth study, optical properties of rutile microrods were observed by UV−visible and photoluminescence (PL) spectroscopy. TiO2 materials with anatase and rutile phase show PL emission due to self-trapped exciton. It has been observed that synthesized rutile TiO2 rods show various PL emission peaks in the range of 400 to 900 nm for 355 nm excitation wavelengths. All PL emission appeared due to the oxygen vacancy present inside rutile TiO2 rods. The observed PL near the IR range (785 and 825 nm) was due to the formation of a self-trapped hole near to the surface of (110) which is the preferred orientation plane of synthesized rutile TiO2 microrods.
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Affiliation(s)
- Hieu Minh Ngo
- Department of Chemistry, Sogang University, Seoul 04107, Korea; (H.M.N.); (K.M.O.)
| | - Amol Uttam Pawar
- Environmental and Climate Technology, Korea Institute of Energy Technology, Naju-si 58219, Korea; (A.U.P.); (D.K.L.)
| | - Jun Tang
- Zhejiang Coloray Technology Development Co., Ltd., No. 151, Huishan Road, Deqing County, Huzhou 313200, China; (J.T.); (Z.Z.)
| | - Zhongbiao Zhuo
- Zhejiang Coloray Technology Development Co., Ltd., No. 151, Huishan Road, Deqing County, Huzhou 313200, China; (J.T.); (Z.Z.)
| | - Don Keun Lee
- Environmental and Climate Technology, Korea Institute of Energy Technology, Naju-si 58219, Korea; (A.U.P.); (D.K.L.)
| | - Kang Min Ok
- Department of Chemistry, Sogang University, Seoul 04107, Korea; (H.M.N.); (K.M.O.)
| | - Young Soo Kang
- Environmental and Climate Technology, Korea Institute of Energy Technology, Naju-si 58219, Korea; (A.U.P.); (D.K.L.)
- Correspondence:
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25
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Fawzi T, Rani S, Roy SC, Lee H. Photocatalytic Carbon Dioxide Conversion by Structurally and Materially Modified Titanium Dioxide Nanostructures. Int J Mol Sci 2022; 23:ijms23158143. [PMID: 35897719 PMCID: PMC9330242 DOI: 10.3390/ijms23158143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 12/18/2022] Open
Abstract
TiO2 has aroused considerable attentions as a promising photocatalytic material for decades due to its superior material properties in several fields such as energy and environment. However, the main dilemmas are its wide bandgap (3–3.2 eV), that restricts the light absorption in limited light wavelength region, and the comparatively high charge carrier recombination rate of TiO2, is a hurdle for efficient photocatalytic CO2 conversion. To tackle these problems, lots of researches have been implemented relating to structural and material modification to improve their material, optical, and electrical properties for more efficient photocatalytic CO2 conversion. Recent studies illustrate that crystal facet engineering could broaden the performance of the photocatalysts. As same as for nanostructures which have advantages such as improved light absorption, high surface area, directional charge transport, and efficient charge separation. Moreover, strategies such as doping, junction formation, and hydrogenation have resulted in a promoted photocatalytic performance. Such strategies can markedly change the electronic structure that lies behind the enhancement of the solar spectrum harnessing. In this review, we summarize the works that have been carried out for the enhancement of photocatalytic CO2 conversion by material and structural modification of TiO2 and TiO2-based photocatalytic system. Moreover, we discuss several strategies for synthesis and design of TiO2 photocatalysts for efficient CO2 conversion by nanostructure, structure design of photocatalysts, and material modification.
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Affiliation(s)
- Tarek Fawzi
- Department of Photonics, National Sun Yat-sen University, No. 70, Lien-Hai Rd, Kaohsiung 80424, Taiwan; or
| | - Sanju Rani
- Department of Physics, SRM Institute of Science and Technology, Ramapuram Campus, Chennai 600089, Tamil Nadu, India;
| | - Somnath C. Roy
- Semiconducting Oxide Materials, Nanostructures and Tailored Heterojunction (SOMNaTH) Lab, Functional Oxides Research Group (FORG) and 2D Materials and Innovation Centre, Department of Physics, IIT Madras, Chennai 600036, Tamil Nadu, India;
| | - Hyeonseok Lee
- Department of Photonics, National Sun Yat-sen University, No. 70, Lien-Hai Rd, Kaohsiung 80424, Taiwan; or
- Correspondence: ; Tel.: +886-7-525-2000 (ext. 4473)
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26
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Yuan F, Xia Y, Lu Q, Xu Q, Shu Y, Hu X. Recent advances in inorganic functional nanomaterials based flexible electrochemical sensors. Talanta 2022; 244:123419. [DOI: 10.1016/j.talanta.2022.123419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 02/13/2022] [Accepted: 03/27/2022] [Indexed: 12/16/2022]
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27
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Li Z, Li Z, Zuo C, Fang X. Application of Nanostructured TiO 2 in UV Photodetectors: A Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109083. [PMID: 35061927 DOI: 10.1002/adma.202109083] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/16/2022] [Indexed: 06/14/2023]
Abstract
As a wide-bandgap semiconductor material, titanium dioxide (TiO2 ), which possesses three crystal polymorphs (i.e., rutile, anatase, and brookite), has gained tremendous attention as a cutting-edge material for application in the environment and energy fields. Based on the strong attractiveness from its advantages such as high stability, excellent photoelectric properties, and low-cost fabrication, the construction of high-performance photodetectors (PDs) based on TiO2 nanostructures is being extensively developed. An elaborate microtopography and device configuration is the most widely used strategy to achieve efficient TiO2 -based PDs with high photoelectric performances; however, a deep understanding of all the key parameters that influence the behavior of photon-generated carriers, is also highly required to achieve improved photoelectric performances, as well as their ultimate functional applications. Herein, an in-depth illustration of the electrical and optical properties of TiO2 nanostructures in addition to the advances in the technological issues such as preparation, microdefects, p-type doping, bandgap engineering, heterojunctions, and functional applications are presented. Finally, a future outlook for TiO2 -based PDs, particularly that of further functional applications is provided. This work will systematically illustrate the fundamentals of TiO2 and shed light on the preparation of more efficient TiO2 nanostructures and heterojunctions for future photoelectric applications.
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Affiliation(s)
- Ziliang Li
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Ziqing Li
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Chaolei Zuo
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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28
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Lan K, Wei Q, Zhao D. Versatile Synthesis of Mesoporous Crystalline TiO 2 Materials by Monomicelle Assembly. Angew Chem Int Ed Engl 2022; 61:e202200777. [PMID: 35194915 DOI: 10.1002/anie.202200777] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Indexed: 11/10/2022]
Abstract
Mesoscale TiO2 structures have realized many technological applications-ranging from catalysis and biomedicine to energy storage and conversion-because of their large mesoporosities offering desirable accessibility and mass transport. Tailoring mesoporous TiO2 structures with novel mesoscopic and microscopic configurations is envisaged to offer ample opportunities for further applications. In this Review, we explain how to synthesize novel mesoporous TiO2 materials and present recent examples. An emphasis is placed on a "monomicelle assembly" strategy as an emerging and powerful approach to direct the formation of mesostructured TiO2 with precise control over its structural orientations and architectures. Furthermore, typical examples of mesoporous TiO2 for applications in batteries and photocatalysis are highlighted. The Review ends with an outlook towards the synthesis of mesoporous TiO2 with tailored architectures by self-assembly, which could pave the way for developing advanced energy conversion and storage devices.
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Affiliation(s)
- Kun Lan
- Laboratory of Advanced Materials, Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai, 200433, P. R. China
| | - Qiulong Wei
- Department of Materials Science and Engineering, Fujian Key Laboratory of Materials Genome, Xiamen Key Laboratory of High Performance Metals and Materials, College of Materials, Xiamen University, Xiamen, 361005, P. R. China
| | - Dongyuan Zhao
- Laboratory of Advanced Materials, Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai, 200433, P. R. China
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29
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Kumar A, Dutta S, Kim S, Kwon T, Patil SS, Kumari N, Jeevanandham S, Lee IS. Solid-State Reaction Synthesis of Nanoscale Materials: Strategies and Applications. Chem Rev 2022; 122:12748-12863. [PMID: 35715344 DOI: 10.1021/acs.chemrev.1c00637] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterials (NMs) with unique structures and compositions can give rise to exotic physicochemical properties and applications. Despite the advancement in solution-based methods, scalable access to a wide range of crystal phases and intricate compositions is still challenging. Solid-state reaction (SSR) syntheses have high potential owing to their flexibility toward multielemental phases under feasibly high temperatures and solvent-free conditions as well as their scalability and simplicity. Controlling the nanoscale features through SSRs demands a strategic nanospace-confinement approach due to the risk of heat-induced reshaping and sintering. Here, we describe advanced SSR strategies for NM synthesis, focusing on mechanistic insights, novel nanoscale phenomena, and underlying principles using a series of examples under different categories. After introducing the history of classical SSRs, key theories, and definitions central to the topic, we categorize various modern SSR strategies based on the surrounding solid-state media used for nanostructure growth, conversion, and migration under nanospace or dimensional confinement. This comprehensive review will advance the quest for new materials design, synthesis, and applications.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Soumen Dutta
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seonock Kim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Santosh S Patil
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sampathkumar Jeevanandham
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Korea
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30
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Lan K, Wei Q, Zhao D. Versatile Synthesis of Mesoporous Crystalline TiO
2
Materials by Monomicelle Assembly. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kun Lan
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
| | - Qiulong Wei
- Department of Materials Science and Engineering Fujian Key Laboratory of Materials Genome Xiamen Key Laboratory of High Performance Metals and Materials College of Materials Xiamen University Xiamen 361005 P. R. China
| | - Dongyuan Zhao
- Laboratory of Advanced Materials Department of Chemistry State Key Laboratory of Molecular Engineering of Polymers iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
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31
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Jeong I, Han DY, Hwang J, Song WJ, Park S. Foldable batteries: from materials to devices. NANOSCALE ADVANCES 2022; 4:1494-1516. [PMID: 36134364 PMCID: PMC9419599 DOI: 10.1039/d1na00892g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 02/03/2022] [Indexed: 06/16/2023]
Abstract
Wearable electronics is a growing field that has important applications in advanced human-integrated systems with high performance and mechanical deformability, especially foldable characteristics. Although foldable electronics such as rollable TVs (LG signature OLED R) or foldable smartphones (Samsung Galaxy Z fold/flip series) have been successfully established in the market, these devices are still powered by rigid and stiff batteries. Therefore, to realize fully wearable devices, it is necessary to develop state-of-the-art foldable batteries with high performance and safety in dynamic deformation states. In this review, we cover the recent progress in developing materials and system designs for foldable batteries. The Materials section is divided into three sections aimed at helping researchers choose suitable materials for their systems. Several foldable battery systems are discussed and the combination of innovative materials and system design that yields successful devices is considered. Furthermore, the basic analysis process of electrochemical and mechanical properties is provided as a guide for researchers interested in the evaluation of foldable battery systems. The current challenges facing the practical application of foldable batteries are briefly discussed. This review will help researchers to understand various aspects (from material preparation to battery configuration) of foldable batteries and provide a brief guideline for evaluating the performance of these batteries.
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Affiliation(s)
- Insu Jeong
- Department of Chemistry, Pohang University of Science and Technology Pohang 37673 South Korea
| | - Dong-Yeob Han
- Department of Chemistry, Pohang University of Science and Technology Pohang 37673 South Korea
| | - Jongha Hwang
- Department of Organic Materials Engineering, Chungnam National University Daejeon 34134 South Korea
| | - Woo-Jin Song
- Department of Organic Materials Engineering, Chungnam National University Daejeon 34134 South Korea
| | - Soojin Park
- Department of Chemistry, Pohang University of Science and Technology Pohang 37673 South Korea
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32
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Liu Y, Pan X, Chen W, Zhao X. Titanate-derived Nb-doped TiO 2 nanoparticles displaying improved lithium storage performance. Dalton Trans 2022; 51:2506-2511. [PMID: 35050267 DOI: 10.1039/d1dt03352b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, a facile synthetic method has been used to prepare Nb-doped TiO2 nanoparticles with titanate as the precursor. The synthesized electrode materials were characterized using X-ray diffraction, Raman spectroscopy, scanning and transmission electron microscopy, inductively coupled plasma optical emission spectrometry and X-ray photoelectron spectroscopy. Furthermore, the Nb-doped TiO2 nanoparticles were used as anode materials for lithium-ion batteries and exhibited improved lithium-ion storage properties. For instance, Nb-doped TiO2 showed a high capacity of 134.1 mA h g-1 at 30 C, while undoped TiO2 exhibited a low capacity of 76.8 mA h g-1. These improvements may be associated with enhanced conductivity due to Nb doping.
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Affiliation(s)
- Yubin Liu
- College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou 362000, China
| | - Xiaoyang Pan
- College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou 362000, China
| | - Wenjie Chen
- College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou 362000, China
| | - Xiaojing Zhao
- College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou 362000, China
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33
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Bai L, Liu L, Pang J, Chen Z, Wei M, Wu Y, Dong G, Zhang J, Shan D, Wang B. N,P-codoped carbon quantum dots-decorated TiO 2 nanowires as nanosized heterojunction photocatalyst with improved photocatalytic performance for methyl blue degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:9932-9943. [PMID: 34510339 DOI: 10.1007/s11356-021-16295-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
N,P-doped carbon quantum dots (N,P-CQDs) are deemed as a promising candidate to environmentally friendly materials owing to the inexpensive, biocompatible nature. TiO2 nanowire is a prospective photocatalyst because of its efficient migration of photoexcited carriers in wastewater treatment. However, the N,P-CQDs-decorated TiO2 nanowire (N,P-CQDs/NW-TiO2) photocatalysts have been rarely reported. In this study, we build N,P-CQDs on the surface of TiO2 nanowires via a simple deposition process. Our investigations demonstrate that N,P-CQDs/NW-TiO2 has a great photocatalytic degradation for methyl blue (MB) under irradiation. The degradation rate of can reach 93.6% within 120 min under proper conditions. The excellent degradation performance of N,P-CQDs/NW-TiO2 is ascribed to the mesoporous structure and high separation rate of photoexcited carriers. In addition, the N,P-CQDs/NW-TiO2 have outstanding recycled photocatalytic capability. After being recycled four times, the N,P-CQDs/NW-TiO2 still maintain 59.9% photocatalytic activity. The fabricated nanosized photocatalyst can be widely utilized in the field of photocatalysis for wastewater treatment.
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Affiliation(s)
- Liming Bai
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Lumin Liu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Jinghui Pang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Zhao Chen
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Minghui Wei
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Yang Wu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Guohua Dong
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161000, Heilongjiang Province, China
| | - Jianwei Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Dan Shan
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Baiqi Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China.
- National Demonstration Center for Experimental Preventive Medicine Education, Tianjin Medical University, Tianjin, 300070, China.
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Jia Y, Yin G, Zhang C, Lin Y, Ma Y. Facile synthesis of BiVO4 nanorods by a template method. CHEM LETT 2022. [DOI: 10.1246/cl.210682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yulong Jia
- Chemistry and Chemical Engineering College, Yibin University, Yibin 644000
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100
| | - Guoliang Yin
- Chemistry and Chemical Engineering College, Yibin University, Yibin 644000
| | - Chenyang Zhang
- School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 611756
| | - Yinhe Lin
- Chemistry and Chemical Engineering College, Yibin University, Yibin 644000
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100
| | - Ying Ma
- Chemistry and Chemical Engineering College, Yibin University, Yibin 644000
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100
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Yamazaki Y, Toyonaga T, Doshita N, Mori K, Kuwahara Y, Yamazaki S, Yamashita H. Crystal Facet Engineering and Hydrogen Spillover-Assisted Synthesis of Defective Pt/TiO 2-x Nanorods with Enhanced Visible Light-Driven Photocatalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2291-2300. [PMID: 34967219 DOI: 10.1021/acsami.1c20148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Hydrogen spillover can assist the introduction of defects such as Ti3+ and concomitant oxygen vacancies (VO) in a TiO2 crystal, thereby inducing a new level below the conduction band to improve the conductivity of photogenerated electrons and the visible light absorption property of TiO2. Meanwhile, crystal facet engineering offers a promising approach to achieve improved activity by influencing the recombination step of the photogenerated electrons and holes. In this study, with the aim of achieving enhanced visible light-driven photocatalytic activity, rutile TiO2 nanorods with different aspect ratios were synthesized by crystal facet engineering, and Pt-deposited TiO2-x nanorods (Pt/TNR) were then obtained via reduction treatment assisted by hydrogen spillover. The reduction treatment at 200 °C induced the formation of surface Ti3+ exclusively, whereas surface Ti3+ and VO were formed by performing the reduction at 600 °C. The Pt/TNR with a higher aspect ratio reduced at 200 °C exhibited the highest activity in photocatalytic H2 production under visible light irradiation owing to the synergistic effect of the introduction of Ti3+ defects and the spatial charge carrier separation induced by crystal facet engineering.
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Affiliation(s)
- Yukari Yamazaki
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Osaka 565-0871, Japan
| | - Tetsuya Toyonaga
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Osaka 565-0871, Japan
| | - Naoto Doshita
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Osaka 565-0871, Japan
| | - Kohsuke Mori
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Osaka 565-0871, Japan
- Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Yasutaka Kuwahara
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Osaka 565-0871, Japan
- Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
- Japan Science and Technology Agency, Precursory Research for Embryonic Science and Technology, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Suzuko Yamazaki
- Division of Natural Science, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Hiromi Yamashita
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Osaka 565-0871, Japan
- Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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36
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Harris-Lee TR, Johnson SAL, Wang L, Fletcher PJ, Zhang J, Bentley C, Bowen CR, Marken F. TiO 2 nanocrystal rods on titanium microwires: growth, vacuum annealing, and photoelectrochemical oxygen evolution. NEW J CHEM 2022. [DOI: 10.1039/d2nj00045h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titania nanocrystal rods grown hydrothermally onto titanium microwire are mechanically robust and photoelectrochemically active.
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Affiliation(s)
- Thom R. Harris-Lee
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | | | - Lina Wang
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Philip J. Fletcher
- Materials and Chemical Characterisation Facility (MC2), University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Jie Zhang
- School of Chemistry, Monash University, Clayton, Vic 3800, Australia
| | - Cameron Bentley
- School of Chemistry, Monash University, Clayton, Vic 3800, Australia
| | - Christopher R. Bowen
- Department of Mechanical Engineering, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Frank Marken
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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Reilly K, Adeli B, Fang B, Wilkinson DP, Taghipour F. Advanced titanium dioxide fluidizable nanowire photocatalysts. RSC Adv 2022; 12:4240-4252. [PMID: 35425407 PMCID: PMC8981402 DOI: 10.1039/d1ra07681g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/04/2022] [Indexed: 11/23/2022] Open
Abstract
In photocatalytic water splitting, fluidization is known to minimize the adverse effects of mass-transfer, poor radiation distribution, parasitic back-reactions and photocatalyst handling difficulties, which limit the scalability of immobilized-film and suspended slurry photocatalysts. Fluidization of one-dimensional TiO2 photocatalyst particles, such as nanorods, -wires and -ribbons, is highly desired as it further enhances the efficiency of photocatalytic reaction, due to their peculiar photo-electrochemical characteristics that result in more effective separation of photo-generated charges and absorption of photons. However, the harsh physical environment of a fluidized bed reactor does not readily allow for nanostructured TiO2 photocatalysts, as the fine features would be quickly removed from the particle surface. Here, we propose a scalable method for fabrication of rutile TiO2 nanorods on porous glass beads as a 3D protective substrate to reduce the attrition rate caused by fluidization. The quality of the synthesized nanorod films was optimized through controlling a growth quality factor, Rq, allowing for good quality films to be grown in different batch amounts and different hydrothermal reactor sizes. The utilization of porous glass beads substrate has reduced the attrition rate, and the protective features of the particles reduced the rate of attrition by an order of magnitude, compared to a particulate photocatalyst, to near negligible levels. Such considerably reduced attrition makes the as-developed porous glass beads supported rutile TiO2 nanorods a viable fluidizable photocatalyst candidate for various applications, including water splitting and degradation of organic compounds. Fluidization is known to minimize the adverse effects of mass-transfer, poor radiation distribution, parasitic back-reactions and photocatalyst handling, which limit the scalability of immobilized-film and suspended slurry photocatalysts.![]()
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Affiliation(s)
- Kevin Reilly
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Babak Adeli
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Baizeng Fang
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - David P. Wilkinson
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
- Clean Energy Research Center (CERC), University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Fariborz Taghipour
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
- Clean Energy Research Center (CERC), University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
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Zou L, Zhu Y, Hu Z, Cao XZ, Cen W. Remarkably Improved Water Splitting Photocatalytic Performance of Crystalline TiO2 Nanobelts Hydrogenated at Atmospheric Pressure with the Assistance of Hydrogen Spillover. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01166b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unusual photocatalytic performance of hydrogenated black TiO2 has aroused worldwide interest. However, hydrogena-tion of well-crystallized TiO2 is always thought to be difficult even at rigorous conditions. In present work,...
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Photocatalytic Reduction of CO2 to Methanol by Cu2O/TiO2 Heterojunctions. SUSTAINABILITY 2021. [DOI: 10.3390/su14010374] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The conversion of CO2 to low-carbon fuels using solar energy is considered an economically attractive and environmentally friendly route. The development of novel catalysts and the use of solar energy via photocatalysis are key to achieving the goal of chemically reducing CO2 under mild conditions. TiO2 is not very effective for the photocatalytic reduction of CO2 to low-carbon chemicals such as methanol (CH3OH). Thus, in this work, novel Cu2O/TiO2 heterojunctions that can effectively separate photogenerated electrons and holes were prepared for photocatalytic CO2-to-CH3OH. More visible light-active Cu2O in the Cu2O/TiO2 heterojunctions favors the formation of methanol under visible light irradiation. On the other hand, under UV-Vis irradiation for 6 h, the CH3OH yielded from the photocatalytic CO2-to-CH3OH by the Cu2O/TiO2 heterojunctions is 21.0–70.6 µmol/g-catalyst. In contrast, the yield of CH3OH decreases with an increase in the Cu2O fraction in the Cu2O/TiO2 heterojunctions. It seems that excess Cu2O in Cu2O/TiO2 heterojunctions may lead to less UV light exposure for the photocatalysts, and may decrease the conversion efficiency of CO2 to CH3OH.
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40
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Byun MY, Kim YE, Baek JH, Jae J, Lee MS. Effect of surface properties of TiO 2 on the performance of Pt/TiO 2 catalysts for furfural hydrogenation. RSC Adv 2021; 12:860-868. [PMID: 35425103 PMCID: PMC8978679 DOI: 10.1039/d1ra07220j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/10/2021] [Indexed: 01/20/2023] Open
Abstract
Hydrogenation of biomass-derived furfural is an important process in biofuel production. Herein, different Pt-supported TiO2 morphologies: nanorod (NR), nanoparticle (NP), and hollow microsphere (HMS) were prepared by the impregnation–chemical reduction method. The furfural conversion increased with an increase of Pt dispersion. However, cyclopentanone selectivity was affected by TiO2 properties, the strong metal–support interaction (SMSI) effect, and the reaction conditions. The Pt/TiO2 NR catalyst exhibited the highest cyclopentanone selectivity of 50.4%. Based on the H2-temperature programmed desorption (H2-TPD) and X-ray photoelectron spectroscopy (XPS) results, the Pt/TiO2 NR catalyst showed a SMSI effect, which was introduced by the chemical reduction method. We suggest that electron charge transfer from Ti species to Pt in the Pt/TiO2 NR catalyst affects the cyclopentanone selectivity by controlling the adsorption strength between the reactant and the Pt surface, thus retarding the formation of byproducts. Hydrogenation of biomass-derived furfural is an important process in biofuel production.![]()
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Affiliation(s)
- Mi Yeon Byun
- Ulsan Division, Korea Institute of Industrial Technology (KITECH) Ulsan 44413 Republic of Korea .,Department of Polymer Science and Chemical Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Ye Eun Kim
- Ulsan Division, Korea Institute of Industrial Technology (KITECH) Ulsan 44413 Republic of Korea .,Department of Chemical and Biological Engineering, Korea University Seoul 02841 Republic of Korea
| | - Jae Ho Baek
- Ulsan Division, Korea Institute of Industrial Technology (KITECH) Ulsan 44413 Republic of Korea
| | - Jungho Jae
- School of Chemical Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Man Sig Lee
- Ulsan Division, Korea Institute of Industrial Technology (KITECH) Ulsan 44413 Republic of Korea .,Department of Green Process and System Engineering, University of Science and Technology (UST) Ulsan 44413 Republic of Korea
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Sivakumar A, Kalaiarasi S, Sahaya Jude Dhas S, Sivaprakash P, Arumugam S, Jose M, Martin Britto Dhas SA. Comparative Assessment of Crystallographic Phase Stability of Anatase and Rutile TiO2 at Dynamic Shock Wave Loaded Conditions. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02161-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Zhang LY, Yang JJ, You YH. Construction and photocatalytic performance of fluorinated ZnO-TiO 2 heterostructure composites. RSC Adv 2021; 11:38654-38666. [PMID: 35493257 PMCID: PMC9044224 DOI: 10.1039/d1ra07757k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/26/2021] [Indexed: 12/31/2022] Open
Abstract
Titanium dioxide, as a promising photocatalytic material, has attracted extensive attention in the field of photocatalytic degradation of organic pollutants in sewage. However, the photocatalytic performance needs to be further improved. In this work, fluorinated ZnO–TiO2 composites (F-ZTO) were prepared by a simple coprecipitation method. The photocatalytic performance of the samples was studied in detail with methyl orange as the target degradation product. The results indicated that under the same conditions, the degradation rates of 6% F-ZTO, F-TiO2 and TiO2 for methyl orange reached 93.75%, 76.56% and 62.89% respectively. This showed that the method used in this work could effectively improve the photocatalytic degradation performance of titanium dioxide. 6% F-ZTO showed an excellent photocatalytic activity, which was attributed to the small grain size, the large specific surface area and the effective inhibition of photoelectron–hole recombination due to fluorination and zinc oxide coupling. In three consecutive cycles, the photocatalytic activity was almost maintained, indicating that 6% F-ZTO had a good recycling performance. Fluorinated ZnO-TiO2 composites (F-ZTO) were prepared by a simple coprecipitation method, the method used could effectively improve the photocatalytic property of titanium dioxide, and 6% F-ZTO showed an excellent activity and recycling performance.![]()
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Affiliation(s)
- Li-Yuan Zhang
- College of Chemistry and Chemical Engineering, Neijiang Normal University 1124 Dongtong Road Neijiang 641112 Sichuan Province China +86 832 2341577.,Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College Neijiang 641112 China
| | - Jin-Ju Yang
- College of Chemistry and Chemical Engineering, Neijiang Normal University 1124 Dongtong Road Neijiang 641112 Sichuan Province China +86 832 2341577
| | - Yao-Hui You
- College of Chemistry and Chemical Engineering, Neijiang Normal University 1124 Dongtong Road Neijiang 641112 Sichuan Province China +86 832 2341577.,Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College Neijiang 641112 China
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Sakib S, Hosseini A, Zhitomirsky I, Soleymani L. Photoelectrochemical IL-6 Immunoassay Manufactured on Multifunctional Catecholate-Modified TiO 2 Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50851-50861. [PMID: 34664926 DOI: 10.1021/acsami.1c18240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
There is an increasing interest in using photoelectrochemistry for enhancing the signal-to-noise ratio and sensitivity of electrochemical biosensors. Nevertheless, it remains challenging to create photoelectrochemical biosensors founded on stable material systems that are also easily biofunctionalized for sensing applications. Herein, a photoelectrochemical immunosensor is reported, in which the concentration of the target protein directly correlates to a change in the measured photocurrent. The material system for the photoelectrode signal transducer involves using catecholate ligands to modify the properties of TiO2 nanostructures in a three-pronged approach of morphology tuning, photoabsorption enhancement, and facilitating bioconjugation. The catecholate-modified TiO2 photoelectrode is combined with a signal-off direct immunoassay to detect interleukin-6 (IL-6), a key biomarker for diagnosing and monitoring various diseases. Catecholate ligands are added during hydrothermal synthesis of TiO2 to enable the growth of three-dimensional nanostructures to form highly porous photoelectrodes that provide a three-dimensional scaffold for immobilizing capture antibodies. Surface modification by catecholate ligands greatly enhances photocurrent generation of the TiO2 photoelectrodes by improving photoabsorption in the visible range. Additionally, catecholate molecules facilitate bioconjugation and probe immobilization by forming a Schiff-base between their -COH group and the -NH2 group of the capture antibodies. The highest photocurrent achieved herein is 8.89 μA cm-2, which represents an enhancement by a factor of 87 from unmodified TiO2. The fabricated immunosensor shows a limit-of-detection of 3.6 pg mL-1 and a log-linear dynamic range of 2-2000 pg mL-1 for IL-6 in human blood plasma.
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Affiliation(s)
- Sadman Sakib
- Department of Engineering Physics, McMaster University, Hamilton L8S 4L7, Canada
| | - Amin Hosseini
- School of Biomedical Engineering, McMaster University, Hamilton L8S 4L7, Canada
| | - Igor Zhitomirsky
- School of Biomedical Engineering, McMaster University, Hamilton L8S 4L7, Canada
- Department of Materials Science and Engineering, McMaster University, Hamilton L8S 4L7, Canada
| | - Leyla Soleymani
- Department of Engineering Physics, McMaster University, Hamilton L8S 4L7, Canada
- School of Biomedical Engineering, McMaster University, Hamilton L8S 4L7, Canada
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Ramos D, Iazykov M, Fernandez M, Santaballa J, Canle M. Mechanical Stability Is Key for Large-Scale Implementation of Photocatalytic Surface-Attached Film Technologies in Water Treatment. FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2021.688498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Replacement of classical tertiary water treatment by chemical-free sunlight-driven photocatalytic units has been often proposed. Photocatalysts are required to be cost-effective, inert, chemically stable, reusable, and easy to separate and also that they are mechanically stable. The effect of mechanical stress on a photoactive TiO2 layer, and on its effectivity for degradation of phenol as a model pollutant, has been studied during photocatalytic water treatment using NUV–vis light. Sol–gel (SG) and liquid phase deposition (LPD) methods have been used to coat spherical glass beads with the photocatalyst (TiO2). Physicochemical characterization of coated glass beads has been performed by N2 adsorption–desorption isotherms, SEM, EDXS, and AFM. Phenol photocatalyzed degradation was carried out both in stirred batch and flow reactors irradiated with a medium-pressure Hg-vapor lamp (λ > 350 nm). Phenol concentration was determined by HPLC, and its photoproducts were identified using HPLC/MS. In the stirred batch reactor, all LPD-coated glass beads displayed higher catalytic activity than SG-coated ones, which increased with calcination temperature, 700°C being the most efficient temperature. Preliminary etching of the glass beads surface yielded dissimilar results; whereas, phenol photodegradation with SG-coated etched glass beads is twice faster than with unetched SG ones, the rate reduces to one-third using LPD etched instead of unetched LPD glass beads. Phenol photodegradation using LPD is similar both in stirred batch and flow reactors, despite the latter uses a lower catalyst load. LPD-etched catalyst was recovered and reused in the stirred batch reactor; its activity reduced sharply after the first use, and it also lost activity in successive runs, ca. 10% of activity after each “use and recover” cycle. In the flow reactor, activity loss after the first experiment and recycling (ca. 30%) was much larger than in the following runs, where the activity remained rather constant through several cycles. LPD is more adequate than SG for TiO2 immobilization onto glass beads, and their calcination at 700°C leads to relatively strong and reactive photocatalytic films. Still, TiO2-coated glass beads exhibited very low photoactivity compared to TiO2-P25 nanoparticles, though their separation is much easier and almost costless. The durability of the catalytic layer increases when using a flow reactor, with the pollutant solution flowing in a laminar regime through the photocatalyst bed. In this way, the abrasion of the photocatalytic surface is largely reduced and its photoactivity is better maintained.
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Influence of annealing atmosphere on photoelectrochemical response of TiO2 nanotubes anodized under controlled hydrodynamic conditions. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Amoli AE, Masoumi M, Sharifzadeh M, Babaei F, Firouzzade Pasha G. Synthesis of TiO 2-Fe 2O 3 nanocomposite for the photocatalytic degradation of Direct Blue 199 and Basic Yellow 28 dyes under visible light irradiation. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1957924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Armin Ehsani Amoli
- Department of Chemical Engineering, Faculty of Engineering, Islamic Azad University, Amol Branched, Amol, Iran
| | - Mojtaba Masoumi
- Department of Chemical Engineering, Faculty of Engineering, Islamic Azad University, Amol Branched, Amol, Iran
| | - Maziar Sharifzadeh
- Department of Chemical Engineering, Faculty of Engineering, Islamic Azad University, Amol Branched, Amol, Iran
| | - Fatemeh Babaei
- Research and Development Center, Mazandaran Gas Company, Sari, Iran
| | - Ghasem Firouzzade Pasha
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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Shen Z, Zhou Y, Guo Y, Zhao J, Song J, Xie Y, Ling Y, Zhang W. Tuning the concentration of surface/bulk oxygen vacancies in CeO2 nanorods to promote highly efficient photodegradation of organic dyes. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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48
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Hussain I, Jalil AA, Hamid MYS, Hassan NS. Recent advances in catalytic systems in the prism of physicochemical properties to remediate toxic CO pollutants: A state-of-the-art review. CHEMOSPHERE 2021; 277:130285. [PMID: 33794437 DOI: 10.1016/j.chemosphere.2021.130285] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/07/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
Carbon monoxide (CO) is the most harmful pollutant in the air, causing environmental issues and adversely affecting humans and the vegetation and then raises global warming indirectly. CO oxidation is one of the most effective methods of reducing CO by converting it into carbon dioxide (CO2) using a suitable catalytic system, due to its simplicity and great value for pollution control. The CO oxidation reaction has been widely studied in various applications, including proton-exchange membrane fuel cell technology and catalytic converters. CO oxidation has also been of great academic interest over the last few decades as a model reaction. Many review studies have been produced on catalysts development for CO oxidation, emphasizing noble metal catalysts, the configuration of catalysts, process parameter influence, and the deactivation of catalysts. Nevertheless, there is still some gap in a state of the art knowledge devoted exclusively to synergistic interactions between catalytic activity and physicochemical properties. In an effort to fill this gap, this analysis updates and clarifies innovations for various latest developed catalytic CO oxidation systems with contemporary evaluation and the synergistic relationship between oxygen vacancies, strong metal-support interaction, particle size, metal dispersion, chemical composition acidity/basicity, reducibility, porosity, and surface area. This review study is useful for environmentalists, scientists, and experts working on mitigating the harmful effects of CO on both academic and commercial levels in the research and development sectors.
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Affiliation(s)
- I Hussain
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Malaysia
| | - A A Jalil
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310, UTM, Johor Bahru, Johor, Malaysia.
| | - M Y S Hamid
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310, UTM, Johor Bahru, Johor, Malaysia
| | - N S Hassan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia
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Rihova M, Yurkevich O, Motola M, Hromadko L, Spotz Z, Zazpe R, Knez M, Macak JM. ALD coating of centrifugally spun polymeric fibers and postannealing: case study for nanotubular TiO 2 photocatalyst. NANOSCALE ADVANCES 2021; 3:4589-4596. [PMID: 36133479 PMCID: PMC9419182 DOI: 10.1039/d1na00288k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/05/2021] [Indexed: 06/16/2023]
Abstract
This work describes the synthesis of highly photocatalytically active TiO2 tubes (TiTBs) by combining centrifugal spinning and atomic layer deposition (ALD). Poly(vinyl pyrrolidone) (PVP) fibers were first produced by centrifugal spinning and subsequently coated with TiO2 with various film thicknesses in a fluidized bed ALD reactor. After annealing of the TiO2 ALD coated PVP fibers, TiO2 tubes (TiTBs) with excellent textural properties and diameters in the range from approx. 170 to 430 nm were obtained. The morphology and structure of all TiTBs were investigated by scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller analysis (BET). Liquid phase photocatalysis was conducted to determine the photocatalytic activity of the TiTBs. The photocatalytic activity of the TiTBs obtained after 50 TiO2 ALD cycles (degradation rate 0.123 min-1) was twice that of the reference TiO2 P25. The underlying reasons for the remarkable photocatalytic performance were textural properties of the resulting tubes along with suitable crystallinity, embedded within the 1D tubular morphology. The herein presented proof-of-concept approach paves a way for the processing of various polymeric fibers into various tubular nanostructures.
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Affiliation(s)
- Martina Rihova
- Central European Institute of Technology, Brno University of Technology Purkynova 123 612 00 Brno Czech Republic
| | - Oksana Yurkevich
- CIC nanoGUNE BRTA Tolosa Hiribidea 76 E-20018 Donostia - San Sebastian Spain
| | - Martin Motola
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice Nam. Cs. Legii, 565 530 02 Pardubice Czech Republic
| | - Ludek Hromadko
- Central European Institute of Technology, Brno University of Technology Purkynova 123 612 00 Brno Czech Republic
- CIC nanoGUNE BRTA Tolosa Hiribidea 76 E-20018 Donostia - San Sebastian Spain
| | - Zdenek Spotz
- Central European Institute of Technology, Brno University of Technology Purkynova 123 612 00 Brno Czech Republic
| | - Raul Zazpe
- Central European Institute of Technology, Brno University of Technology Purkynova 123 612 00 Brno Czech Republic
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice Nam. Cs. Legii, 565 530 02 Pardubice Czech Republic
| | - Mato Knez
- CIC nanoGUNE BRTA Tolosa Hiribidea 76 E-20018 Donostia - San Sebastian Spain
- IKERBASQUE, Basque Foundation for Science Plaza Euskadi 5 E-48009 Bilbao Spain
| | - Jan M Macak
- Central European Institute of Technology, Brno University of Technology Purkynova 123 612 00 Brno Czech Republic
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice Nam. Cs. Legii, 565 530 02 Pardubice Czech Republic
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Zhao W, Li Y, Shen W. Tuning the shape and crystal phase of TiO 2 nanoparticles for catalysis. Chem Commun (Camb) 2021; 57:6838-6850. [PMID: 34137748 DOI: 10.1039/d1cc01523k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Synthesis of TiO2 nanoparticles with tunable shape and crystal phase has attracted considerable attention for the design of highly efficient heterogeneous catalysts. Tailoring the shape of TiO2, in the crystal phases of anatase, rutile, brookite and TiO2(B), allows tuning of the atomic configurations on the dominantly exposed facets for maximizing the active sites and regulating the reaction route towards a specific channel for achieving high selectivity. Moreover, the shape and crystal phase of TiO2 nanoparticles alter their interactions with metal species, which are commonly termed as strong metal-support interactions involving interfacial strain and charge transfer. On the other hand, metal particles, clusters and single atoms interact differently with TiO2, because of the variation of the electronic structure, while the surface of TiO2 determines the interfacial bonding via a geometric effect. The dynamic behavior of the metal-titania interfaces, driven by the chemisorption of the reactive molecules at elevated temperatures, also plays a decisive role in elaborating the structure-reactivity relationship.
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Affiliation(s)
- Wenning Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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