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Bhapkar AR, Geetha M, Jaspal D, Gheisari K, Laad M, Cabibihan JJ, Sadasivuni KK, Bhame S. Aluminium doped ZnO nanostructures for efficient photodegradation of indigo carmine and azo carmine G in solar irradiation. APPLIED NANOSCIENCE 2023. [DOI: 10.1007/s13204-023-02824-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
AbstractAluminium doped zinc oxide (AZO) nanomaterials (AlxZn1-xO) with x fraction varying as 0.02 and 0.04 were synthesized using the auto-combustion method using glycine as a fuel. The synthesized catalysts were characterized with X-ray diffraction (XRD), UV–Visible Spectroscopy (UV–Vis), Raman spectroscopy, Photoluminescence (PL) spectroscopy, and High Resolution Transmission Electron Microscopy (HR-TEM). XRD results showed that synthesized materials possessed good crystallinity, while UV–VIS was employed to find the band gaps of synthesized materials. Raman was used to determine the vibrational modes in the synthesized nanoparticles, while TEM analysis was performed to study the morphology of the samples. Industrial effluents such as indigo carmine and azo carmine G were used to test the photodegradation ability of synthesised catalysts. Parameters such as the effect of catalyst loading, dye concentration and pH were studied. The reduction in crystallite size, band gap and increased lattice strain for the 4% AZO was the primary reason for the degradation in visible irradiation, degrading 97 and 99% equimolar concentrations of indigo carmine and azo carmine G in 140 min. The Al doped ZnO was found to be effective in faster degradation of dyes as compared to pure ZnO in presence of natural sunlight.
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Farid S, Mao Q, Ren S, Hao C, Dong X. Promoting the Oxygen Evolution Reaction via Morphological Manipulation of a Lamellar Nanorod-Assembled Ni(II)-Pyrazolate Superstructure. ACS APPLIED MATERIALS & INTERFACES 2022; 14:47775-47787. [PMID: 36240000 DOI: 10.1021/acsami.2c14192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nanoscale pyrazolate-based coordination polymers (CPs) are becoming increasingly popular as electrocatalysts owing to their customizable compositions and structures. However, using them for oxygen evolution reaction (OER) is highly challenging due to their unsatisfactory catalytic efficiency and relatively low stability. Herein, a simple one-step solvothermal process was employed for the fabrication of polycrystalline nickel-pyrazolate [Ni(Pz)] with an unusual lamellar nanorod-assembled microsphere morphology for the first time using ethanol as a green organic solvent via controlling other physical parameters. Meanwhile, the Ni(Pz) structure and morphology are investigated to derive its formation process following the different monomeric feed ratios relying on the metal/ligand interactions of CP. Shaping the Ni(Pz) electrocatalyst in well-oriented lamellar nanorod-assembled microspheres brings the advantage of porosity and high specific surface area, which expedites mass/charge transport and contact with the electrolyte as well as creates less tortuous pathways for charge distribution, thus improving the charge homogeneity. These high-class structural features and polycrystalline nature of Ni(Pz)-E-PVP facilitate amazing catalytic OER activity with a low overpotential of 290 mV at 10 mA cm-2 and a Tafel slope of only 94 mV dec-1 beyond the yardstick material (i.e., RuO2) in alkaline solution. A suite of measurements, entailing X-ray photoelectron spectroscopy and density functional theory calculations, suggest that the rich Ni-N4 moieties in Ni(Pz)-E-PVP are central species providing adsorption sites for OER intermediates. This facile protocol is prophesied to commence the imminent development of noble metal-free, effective, and low-priced electrocatalysts for OER.
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Affiliation(s)
- Sumbal Farid
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116024, Liaoning, China
| | - Qing Mao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116024, Liaoning, China
| | - Suzhen Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116024, Liaoning, China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116024, Liaoning, China
| | - Xufeng Dong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian116024, Liaoning, China
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Dantelle G, Beauquis S, Le Dantec R, Monnier V, Galez C, Mugnier Y. Solution-Based Synthesis Routes for the Preparation of Noncentrosymmetric 0-D Oxide Nanocrystals with Perovskite and Nonperovskite Structures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200992. [PMID: 35691941 DOI: 10.1002/smll.202200992] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/21/2022] [Indexed: 06/15/2023]
Abstract
With the miniaturization of electronic-based devices, the foreseen potential of new optical nanoprobes and the assessment of eventual size and shape effects, elaboration of multifunctional noncentrosymmetric nanocrystals with ferroelectric, pyroelectric, piezoelectric, and nonlinear optical properties are the subject of an increasing research interest. Here, the recent achievements from the solution-based methods (coprecipitation in homogeneous and nanostructured media, sol-gel processes including various chemistries and hydro/solvothermal techniques) to prepare 0-D perovskite and nonperovskite oxides in the 5-500 nm size range are critically reviewed. To cover a representative list of covalent- and ionic-type materials, BaTiO3 and its derivatives, niobate compounds (i.e., K/Na/LiNbO3 ), multiferroic BiFeO3, and crystals of lower symmetry including KTiOPO4 and some iodate compounds such as Fe(IO3 )3 and La(IO3 )3 are systematically in focus. The resulting size, morphology, and aggregation state are discussed in light of the proposed formation mechanisms. Because of a higher complexity related to their chemical composition and crystalline structures, improving the rational design of these multifunctional oxides in terms of finely-tuned compositions, crystalline hosts and structure-property relationships still need in the future a special attention of the research community to the detailed understanding of the reaction pathways and crystallization mechanisms.
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Affiliation(s)
- Géraldine Dantelle
- Université Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, Grenoble, 38000, France
| | | | - Ronan Le Dantec
- Université Savoie Mont Blanc, SYMME, Annecy, F-74000, France
| | - Virginie Monnier
- Univ Lyon, Ecole Centrale de Lyon, CNRS, INSA Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, INL, UMR5270, Ecully, 69130, France
| | - Christine Galez
- Université Savoie Mont Blanc, SYMME, Annecy, F-74000, France
| | - Yannick Mugnier
- Université Savoie Mont Blanc, SYMME, Annecy, F-74000, France
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Titanium Dioxide (TiO2) Mesocrystals: Synthesis, Growth Mechanisms and Photocatalytic Properties. Catalysts 2019. [DOI: 10.3390/catal9010091] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hierarchical TiO2 superstructures with desired architectures and intriguing physico-chemical properties are considered to be one of the most promising candidates for solving the serious issues related to global energy exhaustion as well as environmental deterioration via the well-known photocatalytic process. In particular, TiO2 mesocrystals, which are built from TiO2 nanocrystal building blocks in the same crystallographical orientation, have attracted intensive research interest in the area of photocatalysis owing to their distinctive structural properties such as high crystallinity, high specific surface area, and single-crystal-like nature. The deeper understanding of TiO2 mesocrystals-based photocatalysis is beneficial for developing new types of photocatalytic materials with multiple functionalities. In this paper, a comprehensive review of the recent advances toward fabricating and modifying TiO2 mesocrystals is provided, with special focus on the underlying mesocrystallization mechanism and controlling rules. The potential applications of as-synthesized TiO2 mesocrystals in photocatalysis are then discussed to shed light on the structure–performance relationships, thus guiding the development of highly efficient TiO2 mesocrystal-based photocatalysts for certain applications. Finally, the prospects of future research on TiO2 mesocrystals in photocatalysis are briefly highlighted.
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Zhang P, Tachikawa T, Fujitsuka M, Majima T. The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion. Chemistry 2017; 24:6295-6307. [DOI: 10.1002/chem.201704680] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Indexed: 01/24/2023]
Affiliation(s)
- Peng Zhang
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki, Osaka 567-0047 Japan
| | - Takashi Tachikawa
- Molecular Photoscience Research Center; Kobe University; 1-1 Rokkodai-cho Nada-ku Kobe 657-8501 Japan
- PRESTO, Science and Technology Agency (JST); 24-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki, Osaka 567-0047 Japan
| | - Tetsuro Majima
- The Institute of Scientific and Industrial Research (SANKEN); Osaka University; Mihogaoka 8-1 Ibaraki, Osaka 567-0047 Japan
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de Lucas-Gil E, Reinosa JJ, Neuhaus K, Vera-Londono L, Martín-González M, Fernández JF, Rubio-Marcos F. Exploring New Mechanisms for Effective Antimicrobial Materials: Electric Contact-Killing Based on Multiple Schottky Barriers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26219-26225. [PMID: 28708371 DOI: 10.1021/acsami.7b09695] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The increasing threat of multidrug-resistance organisms is a cause for worldwide concern. Progressively microorganisms become resistant to commonly used antibiotics, which are a healthcare challenge. Thus, the discovery of new antimicrobial agents or new mechanisms different from those used is necessary. Here, we report an effective and selective antimicrobial activity of microstructured ZnO (Ms-ZnO) agent through the design of a novel star-shaped morphology, resulting in modulation of surface charge orientation. Specifically, we find that Ms-ZnO particles are composed of platelet stacked structure, which generates multiple Schottky barriers due to the misalignment of crystallographic orientations. We also demonstrated that this effect allows negative charge accumulation in localized regions of the structure to act as "charged domain walls", thereby improving the antimicrobial effectiveness by electric discharging effect. We use a combination of field emission scanning electron microscopy (FE-SEM), SEM-cathodoluminescence imaging, and Kelvin probe force microscopy (KPFM) to determine that the antimicrobial activity is a result of microbial membrane physical damage caused by direct contact with the Ms-ZnO agent. It is important to point out that Ms-ZnO does not use the photocatalysis or the Zn2+ released as the main antimicrobial mechanism, so consequently this material would show low toxicity and robust stability. This approach opens new possibilities to understand both the physical interactions role as main antimicrobial mechanisms and insight into the coupled role of hierarchical morphologies and surface functionality on the antimicrobial activity.
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Affiliation(s)
- Eva de Lucas-Gil
- Electroceramic Department, Instituto de Cerámica y Vidrio, CSIC , Kelsen 5, 28049 Madrid, Spain
| | - Julián J Reinosa
- Electroceramic Department, Instituto de Cerámica y Vidrio, CSIC , Kelsen 5, 28049 Madrid, Spain
| | - Kerstin Neuhaus
- Institute for Inorganic and Analytical Chemistry, University of Münster , Corrensstrasse 28/30, D-48149 Münster, Germany
| | - Liliana Vera-Londono
- Instituto de Micro y Nanotecnologı́a (CNM-CSIC) , Isaac Newton 8, PTM, E-28760 Tres Cantos, Spain
| | - Marisol Martín-González
- Instituto de Micro y Nanotecnologı́a (CNM-CSIC) , Isaac Newton 8, PTM, E-28760 Tres Cantos, Spain
| | - José F Fernández
- Electroceramic Department, Instituto de Cerámica y Vidrio, CSIC , Kelsen 5, 28049 Madrid, Spain
| | - Fernando Rubio-Marcos
- Electroceramic Department, Instituto de Cerámica y Vidrio, CSIC , Kelsen 5, 28049 Madrid, Spain
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Zhang J, Yao B, Ping H, Fu Z, Li Y, Wang W, Wang H, Wang Y, Zhang J, Zhang F. Template-free synthesis of hierarchical porous calcium carbonate microspheres for efficient water treatment. RSC Adv 2016. [DOI: 10.1039/c5ra18366a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hierarchical porous calcium carbonate microspheres are synthesized by a template-free method, and show potential application in water treatment.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Bin Yao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Hang Ping
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Zhengyi Fu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Yu Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Weimin Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Hao Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Yucheng Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Jinyong Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
| | - Fan Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R China
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Maiti S, Pal S, Chattopadhyay KK. Recent advances in low temperature, solution processed morphology tailored ZnO nanoarchitectures for electron emission and photocatalysis applications. CrystEngComm 2015. [DOI: 10.1039/c5ce01130b] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A comprehensive review is given on recent developments of multidimensional nanostructural ZnO processed via low temperature solution approaches and their functional prospect in field emission and environmental remediation.
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Affiliation(s)
- Soumen Maiti
- Thin Films and Nanoscience Laboratory
- Department of Physics
- Jadavpur University
- India
| | - Shreyasi Pal
- Thin Films and Nanoscience Laboratory
- Department of Physics
- Jadavpur University
- India
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Ding J, Fang X, Yang R, Kan B, Li X, Yuan N. Transformation of ZnO polycrystalline sheets into hexagon-like mesocrystalline ZnO rods (tubes) under ultrasonic vibration. NANOSCALE RESEARCH LETTERS 2014; 9:214. [PMID: 24910573 PMCID: PMC4029958 DOI: 10.1186/1556-276x-9-214] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 04/24/2014] [Indexed: 06/03/2023]
Abstract
The mesoscale assembly process is sensitive to additives that can modify the interactions of the crystal nucleus and the developing crystals with solid surfaces and soluble molecules. However, the presence of additives is not a prerequisite for the mesoscale transformation process. In this study, ZnO sheet networks were synthesized on Al foils by a hydrothermal process. Scanning electron microscopy and transmission electron microscopy images confirmed that under ultrasonic vibration, monolithic polycrystalline ZnO sheets transformed into hexagon-like mesocrystalline tubes or rods. The formation mechanism was discussed.
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Affiliation(s)
- Jianning Ding
- Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou, Jiangsu 213164, China
- Center for Low-Dimensional Materials, Micro-Nano Devices and System, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Xiang Fang
- Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou, Jiangsu 213164, China
- Center for Low-Dimensional Materials, Micro-Nano Devices and System, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Rong Yang
- Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou, Jiangsu 213164, China
- Center for Low-Dimensional Materials, Micro-Nano Devices and System, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Biao Kan
- Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou, Jiangsu 213164, China
- Center for Low-Dimensional Materials, Micro-Nano Devices and System, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Xiazhang Li
- Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou, Jiangsu 213164, China
- Center for Low-Dimensional Materials, Micro-Nano Devices and System, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Ningyi Yuan
- Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
- Jiangsu Key Laboratory for Solar Cell Materials and Technology, Changzhou, Jiangsu 213164, China
- Center for Low-Dimensional Materials, Micro-Nano Devices and System, Changzhou University, Changzhou, Jiangsu 213164, China
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Abstract
Mesocrystals that consist of crystallographically aligned individual building blocks and controlled level of porosity in between exhibit unique structures and multifunctional behavior.
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Affiliation(s)
- Yanqiong Liu
- Department of Materials Science and Engineering
- Faculty of Engineering
- National University of Singapore
- Singapore 117574
| | - Yu Zhang
- Department of Materials Science and Engineering
- Faculty of Engineering
- National University of Singapore
- Singapore 117574
| | - John Wang
- Department of Materials Science and Engineering
- Faculty of Engineering
- National University of Singapore
- Singapore 117574
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Peng Y, Qin S, Wang WS, Xu AW. Fabrication of porous Cd-doped ZnO nanorods with enhanced photocatalytic activity and stability. CrystEngComm 2013. [DOI: 10.1039/c3ce40798e] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tani A, Hara H, Takeshita S, Isobe T. An anomalous downsizing of glycothermally-synthesized YBO3 crystals by Ce3+ doping. CrystEngComm 2013. [DOI: 10.1039/c3ce41813h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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