501
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Hierarchical decoration of anodic TiO2 nanorods for enhanced photocatalytic degradation properties. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.12.111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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502
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Mohamed AM, Aljaber AS, AlQaradawi SY, Allam NK. TiO2 nanotubes with ultrathin walls for enhanced water splitting. Chem Commun (Camb) 2015; 51:12617-20. [DOI: 10.1039/c5cc04539h] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanotube wall thickness determines its solar energy conversion efficiency.
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Affiliation(s)
- Ahmad M. Mohamed
- Energy Materials Laboratory (EML)
- School of Sciences and Engineering
- The American University in Cairo
- New Cairo 11835
- Egypt
| | - Amina S. Aljaber
- Department of Chemistry and Earth Sciences
- Qatar University
- Doha
- Qatar
| | | | - Nageh K. Allam
- Energy Materials Laboratory (EML)
- School of Sciences and Engineering
- The American University in Cairo
- New Cairo 11835
- Egypt
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503
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Mortada WI, Moustafa AF, Ismail AM, Hassanien MM, Aboud AA. Microwave assisted decoration of titanium oxide nanotubes with CuFe2O4 quantum dots for solid phase extraction of uranium. RSC Adv 2015. [DOI: 10.1039/c5ra10304e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Titanium oxide nanotubes decorated with CuFe2O4 quantum dots were prepared and characterized. The prepared nanotubes were used for solid phase extraction of U(vi) in real samples.
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Affiliation(s)
- W. I. Mortada
- Urology and Nephrology Center
- Mansoura University
- Mansoura
- Egypt
| | - A. F. Moustafa
- Environmental Impact Assessment Unit
- Environmental monitoring laboratory Unit
- General Administration of Environmental Affairs
- Beni-Suef Governorate
- Egypt
| | - A. M. Ismail
- Technological & Industrial Development Sector
- Ministry of Industry
- Trade & S&M Projects
- Cairo
- Egypt
| | - M. M. Hassanien
- Chemistry Department
- Industrial Education College
- Beni-Suef University
- Beni-Suef
- Egypt
| | - A. A. Aboud
- Physical Department
- Faculty of Science
- Beni-Suef University
- Beni-Suef
- Egypt
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504
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Wang Y, Chen P, Shen Y, Chen C, Yang C, Liu M. Visible-light-driven Ag/AgCl plasmonic photocatalysts via a surfactant-assisted protocol: enhanced catalytic performance by morphology evolution from near-spherical to 1D structures. Phys Chem Chem Phys 2015; 17:25182-90. [DOI: 10.1039/c5cp03618f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Fibrous Ag/AgCl structures with boosted photocatalytic performances have been fabricatedviaa one-pot surfactant-assisted morphology evolution from near-spherical to 1D architectures.
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Affiliation(s)
- Yanping Wang
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Penglei Chen
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Yunfan Shen
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Chuncheng Chen
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
| | - Changchun Yang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Henan
- People's Republic of China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- People's Republic of China
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505
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Kondo T, Nagao S, Yanagishita T, Nguyen NT, Lee K, Schmuki P, Masuda H. Ideally ordered porous TiO2 prepared by anodization of pretextured Ti by nanoimprinting process. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2014.11.013] [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] Open
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506
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Pei L, Yang M, Zhang D, Zhang L, Chen P, Song Y, Gan Y. Photoelectrochemical activities and low content Nb-doping effects on one-dimensional self-ordered Nb2O5–TiO2 nanotubes. RSC Adv 2015. [DOI: 10.1039/c4ra12180e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Nb2O5-doped TiO2 nanotube arrays were fabricated by anodization. Nb's beneficial effects exhibit an improved charge separation efficiency, resulting in higher photocatalytic/photoelectrocatalytic activities.
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Affiliation(s)
- Linjuan Pei
- Department of Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Min Yang
- Department of Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Dan Zhang
- Department of Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Lei Zhang
- Department of Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Harbin Institute of Technology
- Harbin
- P. R. China
| | - Peng Chen
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University)
- Ministry of Education
- Harbin
- P. R. China
| | - Yanyan Song
- Research Center for Analytical Sciences
- Northeastern University
- Shenyang
- P. R. China
| | - Yang Gan
- Department of Catalysis Science and Engineering
- School of Chemical Engineering and Technology
- Harbin Institute of Technology
- Harbin
- P. R. China
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507
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Xue C, Xu X, Yang G, Ding S. Comprehensive investigation of the reciprocity of structure and enhanced photocatalytic performance in finned-tube structured TiO2/BiOBr heterojunctions. RSC Adv 2015. [DOI: 10.1039/c5ra20510g] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The formation mechanism of the as-prepared 1D finned-tube structured TiO2@BiOBr heterojunctions and a possible mechanism of the photocatalytic activity enhancement were proposed.
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Affiliation(s)
- Chao Xue
- Department of Chemical Engineering
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Xin Xu
- Department of Applied Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an
| | - Guidong Yang
- Department of Chemical Engineering
- School of Chemical Engineering and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Shujiang Ding
- Department of Applied Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an
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508
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Zhang T, Cui S, Yu B, Liu Z, Wang D. Surface engineering for an enhanced photoelectrochemical response of TiO2 nanotube arrays by simple surface air plasma treatment. Chem Commun (Camb) 2015; 51:16940-3. [DOI: 10.1039/c5cc06454f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple method to improve the photoelectrochemical performance of TiO2 NTs by simple air plasma post-treatment is reported. The photocurrent density and IPCE are 3–4 times higher than that of the pristine TiO2 NTs even after six months.
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Affiliation(s)
- Tingting Zhang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Siwen Cui
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Bo Yu
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Zhilu Liu
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Daoai Wang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
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509
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Zhang Y, Jiang Z, Huang J, Lim LY, Li W, Deng J, Gong D, Tang Y, Lai Y, Chen Z. Titanate and titania nanostructured materials for environmental and energy applications: a review. RSC Adv 2015. [DOI: 10.1039/c5ra11298b] [Citation(s) in RCA: 217] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The state-of-the-art development of fabrication strategies of multi-dimensional titanate and titania nanostructures is reviewed first. This is followed by an overview of their potential applications in environmental, energy, and biomedical sectors.
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Affiliation(s)
- Yanyan Zhang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Zhelong Jiang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
| | - Jianying Huang
- National Engineering Laboratory for Modern Silk
- College of Textile and Clothing Engineering
- Soochow University
- Suzhou 215123
- China
| | - Linda Y. Lim
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
- Department of Materials Science and Engineering and Department of Chemistry
- Stanford University
| | - Wenlong Li
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Jiyang Deng
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Dangguo Gong
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Yuxin Tang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Yuekun Lai
- National Engineering Laboratory for Modern Silk
- College of Textile and Clothing Engineering
- Soochow University
- Suzhou 215123
- China
| | - Zhong Chen
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
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510
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Zhang Y, Zhu W, Cui X, Yao W, Duan T. One-step hydrothermal synthesis of iron and nitrogen co-doped TiO2nanotubes with enhanced visible-light photocatalytic activity. CrystEngComm 2015. [DOI: 10.1039/c5ce01744k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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511
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Hao L, Bai FQ, Kong CP, Bibi S, Zhang HX. Theoretical studies of heteroatom-doping in TiO2 to enhance the electron injection in dye-sensitized solar cells. RSC Adv 2015. [DOI: 10.1039/c5ra15282h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Density functional calculations have been explored to analyze the structural, electronic and charge transfer properties of a doped TiO2 substrate and catechol–TiO2 interfaces for dye-sensitized solar cells.
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Affiliation(s)
- Li Hao
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- 130023 Changchun
- China
| | - Fu-Quan Bai
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- 130023 Changchun
- China
| | - Chui-Peng Kong
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- 130023 Changchun
- China
| | - Shamsa Bibi
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- 130023 Changchun
- China
| | - Hong-Xing Zhang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- 130023 Changchun
- China
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512
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Loget G, Schmuki P. H₂ mapping on Pt-loaded TiO₂ nanotube gradient arrays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:15356-15363. [PMID: 25426758 DOI: 10.1021/la504167c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe a rapid screening technique for determining the optimal characteristics of nanophotocatalysts for the production of H2 on a single surface. Arrays of TiO2 nanotubes (NTs) with a gradient in length and diameter were fabricated by bipolar anodization, and a perpendicular gradient of Pt nanoparticles (NPs) was generated by the toposelective decoration of the TiO2 NTs. Photocatalytic hydrogen evolution was locally triggered with a UV laser beam, and the arrays were screened in the x and y directions for spatially resolved kinetic measurements and the mapping of the optimal hydrogen production. By using this technique, we demonstrate the time-efficient and straightforward determination of the tube dimensions and Pt loading for optimized H2 production. The concept holds promise for generally improving the study of many photoreactions as a function of the physicochemical characteristic of nanophotocatalysts, which renders it highly attractive for the optimization of various important chemical processes.
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Affiliation(s)
- G Loget
- Department of Materials Science WW-4, LKO, University of Erlangen-Nuremberg , Martensstrasse 7, 91058 Erlangen, Germany
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513
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Zhou X, Liu N, Schmuki P. Ar+-ion bombardment of TiO2 nanotubes creates co-catalytic effect for photocatalytic open circuit hydrogen evolution. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.09.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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514
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Chen W, Shao Y, Li X, Zhao G, Fu J. Nanotopographical Surfaces for Stem Cell Fate Control: Engineering Mechanobiology from the Bottom. NANO TODAY 2014; 9:759-784. [PMID: 25883674 PMCID: PMC4394389 DOI: 10.1016/j.nantod.2014.12.002] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
During embryogenesis and tissue maintenance and repair in an adult organism, a myriad of stem cells are regulated by their surrounding extracellular matrix (ECM) enriched with tissue/organ-specific nanoscale topographical cues to adopt different fates and functions. Attributed to their capability of self-renewal and differentiation into most types of somatic cells, stem cells also hold tremendous promise for regenerative medicine and drug screening. However, a major challenge remains as to achieve fate control of stem cells in vitro with high specificity and yield. Recent exciting advances in nanotechnology and materials science have enabled versatile, robust, and large-scale stem cell engineering in vitro through developments of synthetic nanotopographical surfaces mimicking topological features of stem cell niches. In addition to generating new insights for stem cell biology and embryonic development, this effort opens up unlimited opportunities for innovations in stem cell-based applications. This review is therefore to provide a summary of recent progress along this research direction, with perspectives focusing on emerging methods for generating nanotopographical surfaces and their applications in stem cell research. Furthermore, we provide a review of classical as well as emerging cellular mechano-sensing and -transduction mechanisms underlying stem cell nanotopography sensitivity and also give some hypotheses in regard to how a multitude of signaling events in cellular mechanotransduction may converge and be integrated into core pathways controlling stem cell fate in response to extracellular nanotopography.
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Affiliation(s)
- Weiqiang Chen
- Integrated Biosystems and Biomechanics Laboratory, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yue Shao
- Integrated Biosystems and Biomechanics Laboratory, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xiang Li
- Integrated Biosystems and Biomechanics Laboratory, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Gang Zhao
- Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230027, P. R. China
| | - Jianping Fu
- Integrated Biosystems and Biomechanics Laboratory, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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