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Jamil S, Jabeen N, Sajid F, Khan LU, Kanwal A, Sohail M, Zaheer M, Akhter Z. Visible light driven (VLD) reduced TiO 2-x nanocatalysts designed by inorganic and organic reducing agent-mediated solvothermal methods for electrocatalytic and photocatalytic applications. RSC Adv 2024; 14:24092-24104. [PMID: 39091372 PMCID: PMC11292792 DOI: 10.1039/d4ra03402c] [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: 05/08/2024] [Accepted: 07/11/2024] [Indexed: 08/04/2024] Open
Abstract
This work presents a comparative study on the structural, optical and electrochemical characteristics of visible light driven (VLD) reduced titanium dioxide (TiO2-x ) nanocatalysts synthesized via inorganic and organic synthetic routes. X-ray diffraction (XRD) patterns, Raman spectra and X-ray absorption fine structure (XAFS) analyses reflected anatase phase titania. Whereas, the quantitative EXAFS fit and XANES analysis revealed structural distortion due to the presence of oxygen and titanium vacancies with low valent Ti states in anatase lattices of certain nanocatalysts, which subsequently leads to better electrochemical and photocatalytic activities. Moreover, owing to the large surface area and mesoporous structures, the Mg-TiO2-x nanocatalysts exhibited enhanced water adsorption and ultimately increased overall water splitting with an OER overpotential equal to 420 mV vs. RHE at a current density of 10 mA cm-2 (Tafel slope = 62 mV dec-1), extended visible light absorbance, decreased photoluminescence (PL) intensity and increased carrier lifetime in comparison with commercial titania.
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Affiliation(s)
- Sadaf Jamil
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Naila Jabeen
- Nanosciences and Technology Division, National Centre for Physics QAU Campus, Shahdra Valley Road, P.O. Box 2141 Islamabad-44000 Pakistan
| | - Fatima Sajid
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Latif U Khan
- Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME) P.O. Box 7 Allan 19252 Jordan
| | - Afia Kanwal
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Manzar Sohail
- School of Natural Sciences, National University of Sciences and Technology (NUST) H-12 Islamabad Pakistan
| | - Muhammad Zaheer
- Lahore University of Management Sciences DHA Lahore Cantt 54792 Pakistan
| | - Zareen Akhter
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
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2
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Hershey M, Lu G, North JD, Swearer DF. Mie Resonant Metal Oxide Nanospheres for Broadband Photocatalytic Enhancements. ACS NANO 2024; 18:18493-18502. [PMID: 38959059 DOI: 10.1021/acsnano.4c03913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Metal oxides are widely used in heterogeneous catalysis as supports to disperse catalytically active nanoparticles, isolated atomic sites, or even as catalysts themselves. Herein, we present a method to produce optically active metal oxide supports that exhibit size-dependent Mie resonances based on TiO2 nanospheres with tunable size, crystalline phase composition, and optical properties. Mie resonant TiO2 nanospheres were used as supports to disperse Au, Pt, and Pd nanoparticles. We have found up to a 50-fold enhancement of the electric field at the metal oxide/metal interface corresponding to wavelength-dependent multipolar resonances in the TiO2 structure. Using Au/TiO2 as a prototypical photocatalyst, we demonstrate broadband rate enhancements between 400 and 800 nm during CO oxidation, with a noticeable increase below 500 nm. This increased reactivity at higher photon energies is due to improved photon utilization and interband absorption in the gold that results in greater secondary electron generation through electron-electron scattering processes, thus leading to higher rates in conjunction with the Mie scattering TiO2 support. This study not only highlights the potential of Mie resonant TiO2 in broadband photocatalytic enhancements but also for developing various Mie resonant metal oxide supports, such as ZnO or Cu2O, which can improve photocatalytic performance for a number of critical reactions. As the chemical and energy industries move toward conversion technologies driven by renewable energy sources, the strategy of designing optical resonances into oxide supports that are already widely used could enable a straightforward adaptation of photochemical processing based on traditional heterogeneous catalysts.
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Affiliation(s)
- Matthew Hershey
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Guanyu Lu
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Jamie D North
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Dayne F Swearer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
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3
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Xu W, Hanikel N, Lomachenko KA, Atzori C, Lund A, Lyu H, Zhou Z, Angell CA, Yaghi OM. High-Porosity Metal-Organic Framework Glasses. Angew Chem Int Ed Engl 2023; 62:e202300003. [PMID: 36791229 PMCID: PMC10503658 DOI: 10.1002/anie.202300003] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/17/2023]
Abstract
We report a synthetic strategy to link titanium-oxo (Ti-oxo) clusters into metal-organic framework (MOF) glasses with high porosity though the carboxylate linkage. A new series of MOF glasses was synthesized by evaporation of solution containing Ti-oxo clusters Ti16 O16 (OEt)32 , linkers, and m-cresol. The formation of carboxylate linkages between the Ti-oxo clusters and the carboxylate linkers was confirmed by Fourier-transform infrared (FT-IR) spectroscopy. The structural integrity of the Ti-oxo clusters within the glasses was evidenced by both X-ray absorption near edge structure (XANES) and 17 O magic-angle spinning (MAS) NMR. After ligand exchange and activation, the fumarate-linked MOF glass, termed Ti-Fum, showed a N2 Brunauer-Emmett-Teller (BET) surface areas of 923 m2 g-1 , nearly three times as high as the phenolate-linked MOF glass with the highest BET surface area prior to this report.
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Affiliation(s)
- Wentao Xu
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Nikita Hanikel
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kirill A Lomachenko
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Cesare Atzori
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Alicia Lund
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Hao Lyu
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Zihui Zhou
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - C Austen Angell
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, USA
| | - Omar M Yaghi
- Department of Chemistry, Kavli Energy Nanoscience Institute, and Bakar Institute of Digital Materials for the Planet, Division of Computing, Data Science, and Society, University of California, Berkeley, Berkeley, CA 94720, USA
- KACST-UC Berkeley Center of Excellence for Nanomaterials for Clean Energy Applications, King Abdulaziz City for Science and Technology, Riyadh, 11442, Saudi Arabia
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4
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Haverkamp RG, Wallwork KS, Waterland MR, Gu Q, Kimpton JA. Controlled Hydrolysis of TiO 2 from HCl Digestion Liquors of Ilmenite. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Richard G. Haverkamp
- School of Engineering and Advanced Technology, Massey University, Private Bag 11222, Palmerston North 4472, New Zealand
| | - Kia S. Wallwork
- NST Central, ANSTO, Lucas Heights, New South Wales 2234, Australia
| | - Mark R. Waterland
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4472, New Zealand
| | - Qinfen Gu
- Australian Synchrotron, ANSTO, Clayton, Victoria 3168, Australia
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5
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Pussi K, Louzguine-Luzgin DV, Nokelaineni J, Barbiellini B, Kothalawala V, Ohara K, Yamada H, Bansil A, Kamali S. Atomic structure of an FeCrMoCBY metallic glass revealed by high energy x-ray diffraction. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:285301. [PMID: 35472853 DOI: 10.1088/1361-648x/ac6a9a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Amorphous bulk metallic glasses with the composition Fe48Cr15Mo14C15B6Y2have been of interest due to their special mechanical and electronic properties, including corrosion resistance, high yield-strength, large elasticity, catalytic performance, and soft ferromagnetism. Here, we apply a reverse Monte Carlo technique to unravel the atomic structure of these glasses. The pair-distribution functions for various atomic pairs are computed based on the high-energy x-ray diffraction data we have taken from an amorphous sample. Monte Carlo cycles are used to move the atomic positions until the model reproduces the experimental pair-distribution function. The resulting fitted model is consistent with ourab initiosimulations of the metallic glass. Our study contributes to the understanding of functional properties of Fe-based bulk metallic glasses driven by disorder effects.
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Affiliation(s)
- K Pussi
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Natural Resources Institute Finland (Luke), Production Systems, 00790 Helsinki, Finland
| | - D V Louzguine-Luzgin
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan
- MathAM-OIL, National Institute of Advanced Industrial Science and Technology (AIST), Sendai 980-8577, Japan
| | - J Nokelaineni
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - B Barbiellini
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - V Kothalawala
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - H Yamada
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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6
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Paidi VK, Lee BH, Ahn D, Kim KJ, Kim Y, Hyeon T, Lee KS. Oxygen-Vacancy-Driven Orbital Reconstruction at the Surface of TiO 2 Core-Shell Nanostructures. NANO LETTERS 2021; 21:7953-7959. [PMID: 34585926 DOI: 10.1021/acs.nanolett.1c01995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Oxygen vacancies and their correlation with the electronic structure are crucial to understanding the functionality of TiO2 nanocrystals in material design applications. Here, we report spectroscopic investigations of the electronic structure of anatase TiO2 nanocrystals by employing hard and soft X-ray absorption spectroscopy measurements along with the corresponding model calculations. We show that the oxygen vacancies significantly transform the Ti local symmetry by modulating the covalency of titanium-oxygen bonds. Our results suggest that the altered Ti local symmetry is similar to the C3v, which implies that the Ti exists in two local symmetries (D2d and C3v) at the surface. The findings also indicate that the Ti distortion is a short-range order effect and presumably confined up to the second nearest neighbors. Such distortions modulate the electronic structure and provide a promising approach to structural design of the TiO2 nanocrystals.
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Affiliation(s)
- Vinod K Paidi
- Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Byoung-Hoon Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Docheon Ahn
- Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Ki-Jeong Kim
- Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Younghak Kim
- Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Kug-Seung Lee
- Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
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7
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Onur Şahin E, Dai Y, Chan CK, Tüysüz H, Schmidt W, Lim J, Zhang S, Scheu C, Weidenthaler C. Monitoring the Structure Evolution of Titanium Oxide Photocatalysts: From the Molecular Form via the Amorphous State to the Crystalline Phase. Chemistry 2021; 27:11600-11608. [PMID: 34060158 PMCID: PMC8456846 DOI: 10.1002/chem.202101117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Indexed: 11/07/2022]
Abstract
Amorphous Tix Oy with high surface area has attracted significant interest as photocatalyst with higher activity in ultraviolet (UV) light-induced water splitting applications compared to commercial nanocrystalline TiO2 . Under photocatalytic operation conditions, the structure of the molecular titanium alkoxide precursor rearranges upon hydrolysis and leads to higher connectivity of the structure-building units. Structurally ordered domains with sizes smaller than 7 Å form larger aggregates. The experimental scattering data can be explained best with a structure model consisting of an anatase-like core and a distorted shell. Upon exposure to UV light, the white Tix Oy suspension turns dark corresponding to the reduction of Ti4+ to Ti3+ as confirmed by electron energy loss spectroscopy (EELS). Heat-induced crystallisation was followed by in situ temperature-dependent total scattering experiments. First, ordering in the Ti-O environment takes place upon to 350 °C. Above this temperature, the distorted anatase core starts to grow but the structure obtained at 400 °C is still not fully ordered.
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Affiliation(s)
- Ezgi Onur Şahin
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Yitao Dai
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Candace K. Chan
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
- Materials Science and EngineeringSchool for Engineering of MatterTransport and Energy (SEMTE)Arizona State UniversityAZ 85287-8706TempeUSA
| | - Harun Tüysüz
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Wolfgang Schmidt
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Joohyun Lim
- Nanoanalytics and InterfacesMax-Planck-Institut für Eisenforschung GmbHMax-Planck-Straße 140237DüsseldorfGermany
- Department of ChemistryKangwon National University24341ChuncheonRepublic of Korea
| | - Siyuan Zhang
- Nanoanalytics and InterfacesMax-Planck-Institut für Eisenforschung GmbHMax-Planck-Straße 140237DüsseldorfGermany
| | - Christina Scheu
- Nanoanalytics and InterfacesMax-Planck-Institut für Eisenforschung GmbHMax-Planck-Straße 140237DüsseldorfGermany
| | - Claudia Weidenthaler
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
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8
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Pussi K, Barbiellini B, Ohara K, Yamada H, Dwivedi J, Bansil A, Gupta A, Kamali S. Atomic arrangements in an amorphous CoFeB ribbon extracted via an analysis of radial distribution functions. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:395801. [PMID: 34233320 DOI: 10.1088/1361-648x/ac1238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
We discuss the atomic structure of amorphous ferromagnetic FeCoB alloys, which are used widely in spintronics applications. Specifically, we obtain the pair-distribution functions for various atomic pairs based on high-energy x-ray diffraction data taken from an amorphous Co20Fe61B19specimen. We start our reverse Monte Carlo cycles to determine the disordered structure with a two-phase model in which a small amount of cobalt is mixed with Fe23B6as a second phase. The structure of the alloy is found to be heterogeneous, where the boron atoms drive disorder through the random occupation of the atomic network. Our analysis also indicates the presence of small cobalt clusters that are embedded in the iron matrix and percolating the latter throughout the structure. This morphology can explain the enhanced spin polarization observed in amorphous magnetic materials.
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Affiliation(s)
- K Pussi
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
| | - B Barbiellini
- Physics Department, School of Engineering Science, LUT University, 53851 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - H Yamada
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - J Dwivedi
- School of Physics, Devi Ahilya University, Indore 452001, India
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - A Gupta
- Department of Physics, University of Petroleum and Energy Studies, Bidholi, Dehradun-248007, India
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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9
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10
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Pussi K, Barbiellini B, Ohara K, Carbo-Argibay E, Kolen'ko YV, Bansil A, Kamali S. Structural properties of PbTe quantum dots revealed by high-energy x-ray diffraction. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:485401. [PMID: 32726769 DOI: 10.1088/1361-648x/abaa80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
High-energy x-ray diffraction (HE-XRD) experiments combined with an analysis based on atomic-pair-distribution functions can be an effective tool for probing low-dimensional materials. Here, we show how such an analysis can be used to gain insight into structural properties of PbTe nanoparticles (NPs). We interpret our HE-XRD data using an orthorhombic Pnma phase of PbTe, which is an orthorhombic distortion of the rocksalt phase. Although local crystal geometry can vary substantially with particle size at scales below 10 nm, and for very small NPs the particle size itself influences x-ray diffraction patterns, our study shows that HE-XRD can provide a unique nano-characterization tool for unraveling structural properties of nanoscale systems.
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Affiliation(s)
- K Pussi
- Department of Physics, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
| | - B Barbiellini
- Department of Physics, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - K Ohara
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - E Carbo-Argibay
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - Y V Kolen'ko
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
| | - A Bansil
- Physics Department, Northeastern University, Boston, MA 02115, United States of America
| | - S Kamali
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee Space Institute, Tullahoma, TN 37388, United States of America
- Department of Physics and Astronomy, Middle Tennessee State University, Murfreesboro, TN 37132, United States of America
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11
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12
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Benčina M, Iglič A, Mozetič M, Junkar I. Crystallized TiO 2 Nanosurfaces in Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1121. [PMID: 32517276 PMCID: PMC7353402 DOI: 10.3390/nano10061121] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 12/25/2022]
Abstract
Crystallization alters the characteristics of TiO2 nanosurfaces, which consequently influences their bio-performance. In various biomedical applications, the anatase or rutile crystal phase is preferred over amorphous TiO2. The most common crystallization technique is annealing in a conventional furnace. Methods such as hydrothermal or room temperature crystallization, as well as plasma electrolytic oxidation (PEO) and other plasma-induced crystallization techniques, present more feasible and rapid alternatives for crystal phase initiation or transition between anatase and rutile phases. With oxygen plasma treatment, it is possible to achieve an anatase or rutile crystal phase in a few seconds, depending on the plasma conditions. This review article aims to address different crystallization techniques on nanostructured TiO2 surfaces and the influence of crystal phase on biological response. The emphasis is given to electrochemically anodized nanotube arrays and their interaction with the biological environment. A short overview of the most commonly employed medical devices made of titanium and its alloys is presented and discussed.
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Affiliation(s)
- Metka Benčina
- Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; (M.M.); (I.J.)
| | - Aleš Iglič
- Laboratory of Physics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, SI-1000 Ljubljana, Slovenia;
- Faculty of Medicine, University of Ljubljana, Zaloška 9, SI-1000 Ljubljana, Slovenia
| | - Miran Mozetič
- Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; (M.M.); (I.J.)
| | - Ita Junkar
- Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; (M.M.); (I.J.)
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13
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Zhu YP, Yin J, Abou-Hamad E, Liu X, Chen W, Yao T, Mohammed OF, Alshareef HN. Highly Stable Phosphonate-Based MOFs with Engineered Bandgaps for Efficient Photocatalytic Hydrogen Production. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906368. [PMID: 32129916 DOI: 10.1002/adma.201906368] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 02/11/2020] [Indexed: 05/26/2023]
Abstract
Photoactive metal-organic frameworks (MOFs) represent one of the most promising materials for photocatalytic hydrogen production, but phosphonate-based MOFs have remained largely underdeveloped compared to other conventional MOFs. Herein, a photocatalyst of 1D titanium phosphonate MOF is designed through an easy and scalable stirring hydrothermal method. Homogeneous incorporation of organophosphonic linkers can narrow the bandgap, which is due to the strong electron-donating ability of the OH functional group that can efficiently shift the top of the valence band, moving the light absorption to the visible portion of the spectrum. In addition, the unique 1D nanowire topology enhances the photoinduced charge carrier transport and separation. Accordingly, the titanium phosphonate nanowires deliver remarkably enhanced photocatalytic hydrogen evolution activity under irradiation of both visible light and a full-spectrum simulator. Such concepts of engineering both nanostructures and electronic states herald a new paradigm for designing MOF-based photocatalysts.
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Affiliation(s)
- Yun-Pei Zhu
- Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Jun Yin
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Edy Abou-Hamad
- Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Xiaokang Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China (USTC), Hefei, Anhui, 230029, China
| | - Wei Chen
- School of Chemistry and Materials Science, University of Science and Technology of China (USTC), Hefei, Anhui, 230029, China
| | - Tao Yao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China (USTC), Hefei, Anhui, 230029, China
| | - Omar F Mohammed
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Husam N Alshareef
- Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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14
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Zhang M, Wen Y, Zong L, Wei H, Wang X. Improved Ti species distribution and hierarchical pores in TS-1: towards regeneration of TS-1 deactivated due to alkali corrosion. NEW J CHEM 2020. [DOI: 10.1039/d0nj00960a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
TS-1 deactivated in industrial cyclohexanone ammoximation can be effectively regenerated by hydrothermal treatment with TPABr and ethanolamine solution.
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Affiliation(s)
- Mingming Zhang
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Yiqiang Wen
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Lukuan Zong
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Huijuan Wei
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
| | - Xiangyu Wang
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- China
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15
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Deng C, Ma C, Lau ML, Skinner P, Liu Y, Xu W, Zhou H, Ren Y, Yin Y, Williford B, Dahl M, Xiong H(C. Amorphous and crystalline TiO2 nanoparticle negative electrodes for sodium-ion batteries. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134723] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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K S S, Vellora Thekkae Padil V, Senan C, Pilankatta R, K S, George B, Wacławek S, Černík M. Green Synthesis of High Temperature Stable Anatase Titanium Dioxide Nanoparticles Using Gum Kondagogu: Characterization and Solar Driven Photocatalytic Degradation of Organic Dye. NANOMATERIALS 2018; 8:nano8121002. [PMID: 30518035 PMCID: PMC6316888 DOI: 10.3390/nano8121002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 11/29/2018] [Accepted: 12/01/2018] [Indexed: 11/16/2022]
Abstract
The present study reports a green and sustainable method for the synthesis of titanium dioxide (TiO2) nanoparticles (NPs) from titanium oxysulfate solution using Kondagogu gum (Cochlospermum gossypium), a carbohydrate polymer, as the NPs formation agent. The synthesized TiO2 NPs were categorized by techniques such as X-Ray Diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy analysis, Raman spectroscopy, scanning electron microscope- Energy-dispersive X-ray spectroscopy (SEM-EDX), Transmission electron microscopy (TEM), High-resolution transmission electron microscopy (HR-TEM), UV-visible spectroscopy, Brunauer-Emmett-Teller (BET) surface area and particle size analysis. Additionally, the photocatalytic actions of TiO2 NPs were assessed with regard to their ability to degrade an organic dye (methylene blue) from aqueous solution in the presence of solar light. Various parameters affecting the photocatalytic activity of the TiO2 NPs were examined, including catalyst loading, reaction time, pH value and calcination temperature of the aforementioned particles. This green synthesis method involving TiO2 NPs explores the advantages of inexpensive and non-toxic precursors, the TiO2 NPs themselves exhibiting excellent photocatalytic activity against dye molecules.
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Affiliation(s)
- Saranya K S
- Department of Chemistry, School of Physical Sciences, Central University of Kerala, Kerala 671316, India.
| | - Vinod Vellora Thekkae Padil
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentská 1402/2, 46117 Liberec 1, Czech Republic.
| | - Chandra Senan
- Centre for Water Soluble Polymers, Applied Science, Faculty of Arts, Science and Technology, Wrexham Glyndwr University, Wrexham LL11 2AW, Wales, UK.
| | - Rajendra Pilankatta
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Central, University of Kerala, Kerala 671316, India.
| | - Saranya K
- Department of Chemistry, School of Physical Sciences, Central University of Kerala, Kerala 671316, India.
| | - Bini George
- Department of Chemistry, School of Physical Sciences, Central University of Kerala, Kerala 671316, India.
| | - Stanisław Wacławek
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentská 1402/2, 46117 Liberec 1, Czech Republic.
| | - Miroslav Černík
- Institute for Nanomaterials, Advanced Technologies and Innovation (CXI), Technical University of Liberec (TUL), Studentská 1402/2, 46117 Liberec 1, Czech Republic.
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17
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Vorontsov AV, Tsybulya SV. Influence of Nanoparticles Size on XRD Patterns for Small Monodisperse Nanoparticles of Cu0 and TiO2 Anatase. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04480] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander V. Vorontsov
- Altai State University, Prospekt
Lenina 61, Barnaul 656049, Russia
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Prospekt Akademia Lavrentyeva 9, Novosibirsk 630090, Russia
| | - Sergei V. Tsybulya
- Boreskov Institute of Catalysis, Prospekt Akademia Lavrentyeva 5, Novosibirsk 630090, Russia
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18
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Microwave-assisted synthesis of anatase-TiO 2 nanoparticles with catalytic activity in oxygen reduction. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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20
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Cluster models of photocatalytic anatase TiO2 nanoparticles and their computational characterization. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.10.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Bak T, Li W, Nowotny J, Atanacio AJ, Davis J. Photocatalytic Properties of TiO2: Evidence of the Key Role of Surface Active Sites in Water Oxidation. J Phys Chem A 2015; 119:9465-73. [DOI: 10.1021/acs.jpca.5b05031] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tadeusz Bak
- Solar Energy Technologies,
University of Western Sydney, Penrith NSW 2751, Australia
| | - Wenxian Li
- Solar Energy Technologies,
University of Western Sydney, Penrith NSW 2751, Australia
| | - Janusz Nowotny
- Solar Energy Technologies,
University of Western Sydney, Penrith NSW 2751, Australia
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22
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Mi JL, Jensen KMØ, Tyrsted C, Bremholm M, Iversen BB. In situ total X-ray scattering study of the formation mechanism and structural defects in anatase TiO2 nanoparticles under hydrothermal conditions. CrystEngComm 2015. [DOI: 10.1039/c5ce00544b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The in situ PDF method provides detailed information about the formation and growth mechanisms of TiO2 anatase nanoparticles under hydrothermal conditions.
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Affiliation(s)
- Jian-Li Mi
- Institute for Advanced Materials
- School of Materials Science and Engineering
- Jiangsu University
- Zhenjiang 212013, China
| | | | - Christoffer Tyrsted
- Center for Materials Crystallography
- Department of Chemistry and iNANO
- Aarhus University
- , Denmark
| | - Martin Bremholm
- Center for Materials Crystallography
- Department of Chemistry and iNANO
- Aarhus University
- , Denmark
| | - Bo B. Iversen
- Center for Materials Crystallography
- Department of Chemistry and iNANO
- Aarhus University
- , Denmark
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23
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Affiliation(s)
- Lixia Sang
- Key
Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry
of Education and Key Laboratory of Heat Transfer and Energy Conversion,
Beijing Municipality, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
| | - Yixin Zhao
- School
of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Clemens Burda
- Center
for Chemical Dynamics and Nanomaterials Research, Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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24
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Kubacka A, Iglesias-Juez A, di Michiel M, Becerro AI, Fernández-García M. Morphological and structural behavior of TiO2 nanoparticles in the presence of WO3: crystallization of the oxide composite system. Phys Chem Chem Phys 2014; 16:19540-9. [DOI: 10.1039/c4cp02181a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Composite TiO2–WO3 oxide materials were prepared by a single pot microemulsion method and studied during calcination treatments under dry air in order to analyze the influence of tungsten on the behavior of the dominant titania component.
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Affiliation(s)
- Anna Kubacka
- Instituto de Catálisis y Petroleoquímica
- CSIC
- Cantoblanco, Spain
| | | | | | - Ana Isabel Becerro
- Instituto de Ciencia de Materiales de Sevilla
- CSIC-Universidad de Sevilla
- 41092-Sevilla, Spain
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25
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Christoforidis KC, Iglesias-Juez A, Figueroa SJA, Di Michiel M, Newton MA, Fernández-García M. Structure and activity of iron-doped TiO2-anatase nanomaterials for gas-phase toluene photo-oxidation. Catal Sci Technol 2013. [DOI: 10.1039/c2cy20405c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Christoforidis KC, Kubacka A, Ferrer M, Cerrada ML, Fernández-García M, Fernández-García M. Role of TiO2 morphological characteristics in EVOH–TiO2 nanocomposite films: self-degradation and self-cleaning properties. RSC Adv 2013. [DOI: 10.1039/c3ra23271a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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27
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Kubacka A, Iglesias-Juez A, Martínez-Arias A, Di Michiel M, Newton MA, Fernández-García M. Surface and Bulk Approach to Time-resolved Characterization of Heterogeneous Catalysts. ChemCatChem 2012. [DOI: 10.1002/cctc.201200131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Christoforidis KC, Iglesias-Juez A, Figueroa SJA, Newton MA, Michiel MD, Fernández-García M. A structural and surface approach to size and shape control of sulfur-modified undoped and Fe-doped TiO2 anatase nano-materials. Phys Chem Chem Phys 2012; 14:5628-34. [DOI: 10.1039/c2cp40175d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Kubacka A, Fernández-García M, Colón G. Advanced Nanoarchitectures for Solar Photocatalytic Applications. Chem Rev 2011; 112:1555-614. [DOI: 10.1021/cr100454n] [Citation(s) in RCA: 1901] [Impact Index Per Article: 146.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Anna Kubacka
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049-Madrid, Spain
| | | | - Gerardo Colón
- Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC-Universidad de Sevilla, C/Américo Vespucio, 49, 41092-Sevilla, Spain
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30
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Zhang H, Pan X, Liu JJ, Qian W, Wei F, Huang Y, Bao X. Enhanced catalytic activity of sub-nanometer titania clusters confined inside double-wall carbon nanotubes. CHEMSUSCHEM 2011; 4:975-980. [PMID: 21365773 DOI: 10.1002/cssc.201000324] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 12/19/2010] [Indexed: 05/30/2023]
Abstract
Sub-nanometer titania clusters have been homogeneously dispersed within double-wall carbon nantubes (DWNTs) with an inner diameter ranging from 1.0 to 1.5 nm. The confined titania exhibits a much higher activity than the titania particles attached on the outside walls of the DWNTs (the outside titania) in the epoxidation of propylene by H(2)O(2). XPS, XANES and Raman spectroscopy data suggest electron transfer from titanium to the inner surfaces of the DWNTs. In contrast, no electron transfer has been observed for the outside titania. We also found that the extent of this confinement-induced electron transfer is temperature dependent. The enhanced activity of the confined titania clusters is likely attributed to their small sizes and the interaction with the DWNT surface. The synthesis method that we developed here can be readily applied to incorporation of other metal/metal oxide nanoparticles into carbon nanotubes.
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Affiliation(s)
- Hongbo Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, Dalian, PR China
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31
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Koch R, Lipton AS, Filipek S, Renugopalakrishnan V. Arginine interactions with anatase TiO2 (100) surface and the perturbation of 49Ti NMR chemical shifts--a DFT investigation: relevance to Renu-Seeram bio solar cell. J Mol Model 2010; 17:1467-72. [PMID: 20853182 PMCID: PMC3102192 DOI: 10.1007/s00894-010-0853-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Accepted: 09/07/2010] [Indexed: 11/29/2022]
Abstract
Density functional theoretical calculations have been utilized to investigate the interaction of the amino acid arginine with the (100) surface of anatase and the reproduction of experimentally measured 49Ti NMR chemical shifts of anatase. Significant binding of arginine through electrostatic interaction and hydrogen bonds of the arginine guanidinium protons to the TiO2 surface oxygen atoms is observed, allowing attachment of proteins to titania surfaces in the construction of bio-sensitized solar cells. GIAO-B3LYP/6-31G(d) NMR calculation of a three-layer model based on the experimental structure of this TiO2 modification gives an excellent reproduction of the experimental value (-927 ppm) within +/- 7 ppm, however, the change in relative chemical shifts, EFGs and CSA suggest that the effect of the electrostatic arginine binding might be too small for experimental detection.
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Affiliation(s)
- Rainer Koch
- Institute for Pure and Applied Chemistry and Center of Interface Science, University of Oldenburg, Oldenburg, Germany.
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32
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Li Z, Godsell JF, O’Byrne JP, Petkov N, Morris MA, Roy S, Holmes JD. Supercritical Fluid Synthesis of Magnetic Hexagonal Nanoplatelets of Magnetite. J Am Chem Soc 2010; 132:12540-1. [DOI: 10.1021/ja105079y] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhonglai Li
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Jeffrey F. Godsell
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Justin P. O’Byrne
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Nikolay Petkov
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Michael A. Morris
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Saibal Roy
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
| | - Justin D. Holmes
- Materials and Supercritical Fluids Group, Department of Chemistry, Microsystems Centre, and Electron Microscopy and Analysis Facility (EMAF), Tyndall National Institute, University College Cork, Lee Maltings, Prospect Row, Cork, Ireland, and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland
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33
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Becker J, Bremholm M, Tyrsted C, Pauw B, Jensen KMØ, Eltzholt J, Christensen M, Iversen BB. Experimental setup forin situX-ray SAXS/WAXS/PDF studies of the formation and growth of nanoparticles in near- and supercritical fluids. J Appl Crystallogr 2010. [DOI: 10.1107/s0021889810014688] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
The growing interest in inorganic nanoparticles for a wide range of applications is spurring a need for synthesis methods that allow a highly specific tailoring of material properties. Synthesis in supercritical fluids holds great promise for solving this problem, but so far the fundamental chemical processes taking place under these conditions are to a large extent unknown. Here the design, construction and application of a versatile experimental setup are reported; this setup enablesin situsynchrotron small-angle X-ray scattering/wide-angle X-ray scattering/pair distribution function (SAXS/WAXS/PDF) studies of the formation and growth of nanoparticles under supercritical fluid conditions.
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34
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Ganguly A, Ahmad T, Ganguli AK. Self-assembly of copper succinate nanoparticles to form anisotropic mesostructures. Dalton Trans 2009:3536-41. [DOI: 10.1039/b820778j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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