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Xing W, Wang Y, Mao X, Gao Z, Yan X, Yuan Y, Huang L, Tang J. Improvement strategies for oil/water separation based on electrospun SiO 2 nanofibers. J Colloid Interface Sci 2024; 653:1600-1619. [PMID: 37812837 DOI: 10.1016/j.jcis.2023.09.196] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/07/2023] [Accepted: 09/30/2023] [Indexed: 10/11/2023]
Abstract
Oil spills and oily effluents from industry and daily life pose a great threat to all organisms in the ecosystem, while aggravating the problem of water scarcity, which has developed into a global challenge. Therefore, the development of advanced materials and technologies for oil/water separation has become a focus of attention. One-dimensional (1D) SiO2 nanofibers (SNFs) have become one of the most widely used inorganic nanomaterials in the past due to their stable chemical properties, excellent biocompatibility, and high temperature resistance etc. Meanwhile, electrospinning technique, as an emerging technology for treating oil/water emulsions, electrospun SNFs on this basis also has a number of advantages such as adjustable wettability, diverse structure and good connectivity. This review provides a systematic overview of the research progress of electrospun SNFs in different aspects. In this review, we first introduce the basic principles of electrospun SNFs, then focus on the design structures of various SNFs, propose corresponding strategies for the property improvement of SNFs, also analyze and consider the applications of SNFs. Finally, the challenges faced by electrospun SNFs in the field of oil/water separation are analyzed, and the future directions of electrospun SNFs are summarized and prospected.
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Affiliation(s)
- Wei Xing
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yanxin Wang
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Xinhui Mao
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Zhiyuan Gao
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Xianhang Yan
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yanru Yuan
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Linjun Huang
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
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2
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Tian D, Qu Z, Lai T, Zhu G. A prediction model for nanoparticle diffusion behavior in fibrous materials considering steric and hydrodynamic resistances. Phys Chem Chem Phys 2022; 24:24394-24403. [PMID: 36189674 DOI: 10.1039/d2cp03397f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Precise prediction of the hindered diffusion behavior of electroneutral particles in fibrous media plays a critical role in the development of drugs, polymer membranes, and porous electrodes. However, the random microstructure and unknown coupling relationship of multiple resistance mechanisms lead to the lack of a universal prediction model. In this work, a dual-resistance model is proposed by reconstructed pore-scale simulations, which presents the coexistence of steric and hydrodynamic resistances in the multiplication form. The simulation results show that the relationship between steric resistance and structural parameters (porosity, fiber radius, and particle radius) is exponential, while that for hydrodynamic resistance is polynomial. The dominant diffusion resistance is found to change from hydrodynamic to steric resistance with a decrease in porosity. The fluorescent polystyrene microsphere diffusivity in a series of SiO2 fibrous media is determined by single-particle tracking experiments, quantitatively confirming the dual-resistance model. The present model can be used for rapid diffusivity prediction and fibrous membrane and drug design.
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Affiliation(s)
- Di Tian
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Zhiguo Qu
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Tao Lai
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Guodong Zhu
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P. R. China
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3
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Liu C, Wang S, Wang N, Yu J, Liu YT, Ding B. From 1D Nanofibers to 3D Nanofibrous Aerogels: A Marvellous Evolution of Electrospun SiO 2 Nanofibers for Emerging Applications. NANO-MICRO LETTERS 2022; 14:194. [PMID: 36161372 PMCID: PMC9511469 DOI: 10.1007/s40820-022-00937-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/17/2022] [Indexed: 05/14/2023]
Abstract
One-dimensional (1D) SiO2 nanofibers (SNFs), one of the most popular inorganic nanomaterials, have aroused widespread attention because of their excellent chemical stability, as well as unique optical and thermal characteristics. Electrospinning is a straightforward and versatile method to prepare 1D SNFs with programmable structures, manageable dimensions, and modifiable properties, which hold great potential in many cutting-edge applications including aerospace, nanodevice, and energy. In this review, substantial advances in the structural design, controllable synthesis, and multifunctional applications of electrospun SNFs are highlighted. We begin with a brief introduction to the fundamental principles, available raw materials, and typical apparatus of electrospun SNFs. We then discuss the strategies for preparing SNFs with diverse structures in detail, especially stressing the newly emerging three-dimensional SiO2 nanofibrous aerogels. We continue with focus on major breakthroughs about brittleness-to-flexibility transition of SNFs and the means to achieve their mechanical reinforcement. In addition, we showcase recent applications enabled by electrospun SNFs, with particular emphasis on physical protection, health care and water treatment. In the end, we summarize this review and provide some perspectives on the future development direction of electrospun SNFs.
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Affiliation(s)
- Cheng Liu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Sai Wang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Ni Wang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China.
| | - Yi-Tao Liu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, People's Republic of China.
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Block Copolymer and Cellulose Templated Mesoporous TiO2-SiO2 Nanocomposite as Superior Photocatalyst. Catalysts 2022. [DOI: 10.3390/catal12070770] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A dual soft-templating method was developed to produce highly crystalline and mesoporous TiO2-SiO2 nanocomposites. Pluronic F127 as the structure-directing agent and pure cellulose as the surface area modifier were used as the templating media. While Pluronic F127 served as the sacrificing media for generating a mesoporous structure in an acidic pH, cellulose templating helped to increase the specific surface area without affecting the mesoporosity of the TiO2-SiO2 nanostructures. Calcination at elevated temperature removed all the organics and formed pure inorganic TiO2-SiO2 composites as revealed by TGA and FTIR analyses. An optimum amount of SiO2 insertion in the TiO2 matrix increased the thermal stability of the crystalline anatase phase. BET surface area measurement along with low angle XRD revealed the formation of a mesoporous structure in the composites. The photocatalytic activity was evaluated by the degradation of Rhodamine B, Methylene Blue, and 4-Nitrophenol as the model pollutants under solar light irradiation, where the superior photo-degradation activity of Pluronic F127/cellulose templated TiO2-SiO2 was observed compared to pure Pluronic templated composite and commercial Evonik P25 TiO2. The higher photocatalytic activity was achieved due to the higher thermal stability of the nanocrystalline anatase phase, the mesoporosity, and the higher specific surface area.
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5
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Korotcenkov G. Electrospun Metal Oxide Nanofibers and Their Conductometric Gas Sensor Application. Part 2: Gas Sensors and Their Advantages and Limitations. NANOMATERIALS 2021; 11:nano11061555. [PMID: 34204655 PMCID: PMC8231294 DOI: 10.3390/nano11061555] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 01/09/2023]
Abstract
Electrospun metal oxide nanofibers, due to their unique structural and electrical properties, are now being considered as materials with great potential for gas sensor applications. This critical review attempts to assess the feasibility of these perspectives. This article discusses approaches to the manufacture of nanofiber-based gas sensors, as well as the results of analysis of the performances of these sensors. A detailed analysis of the disadvantages that can limit the use of electrospinning technology in the development of gas sensors is also presented in this article. It also proposes some approaches to solving problems that limit the use of nanofiber-based gas sensors. Finally, the summary provides an insight into the future prospects of electrospinning technology for the development of gas sensors aimed for the gas sensor market.
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Affiliation(s)
- Ghenadii Korotcenkov
- Department of Theoretical Physics, Moldova State University, 2009 Chisinau, Moldova
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Yu J, Wang C, Li S, Liu N, Zhu J, Lu Z. Li + -Containing, Continuous Silica Nanofibers for High Li + Conductivity in Composite Polymer Electrolyte. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902729. [PMID: 31497933 DOI: 10.1002/smll.201902729] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/09/2019] [Indexed: 05/27/2023]
Abstract
Solid-state electrolytes have recently attracted significant attention toward safe and high-energy lithium chemistries. In particular, polyethylene oxide (PEO)-based composite polymer electrolytes (CPEs) have shown outstanding mechanical flexibility and manufacturing feasibility. However, their limited ionic conductivity, poor electrochemical stability, and insufficient mechanical strength are yet to be addressed. In this work, a novel CPE supported by Li+ -containing SiO2 nanofibers is developed. The nanofibers are obtained via sol-gel electrospinning, during which lithium sulfate is in situ introduced into the nanofibers. The uniform doping of Li2 SO4 in SiO2 nanofibers increases the Li+ conductivity of SiO2 , generates mesopores on the surface of SiO2 nanofibers, and improves the wettability between SiO2 and PEO. As a result, the obtained SiO2 /Li2 SO4 /PEO CPE yields high Li+ conductivity (1.3 × 10-4 S cm-1 at 60 °C, ≈4.9 times the Li2 SO4 -free CPE) and electrochemical stability. Furthermore, the all-solid-state LiFePO4 -Li full cell demonstrates stable cycling with high capacities (over 80 mAh g-1 , 50 cycles at C/2 at 60 °C). The Li+ -containing mesoporous SiO2 nanofibers show great potential as the filler for CPEs. Similar methods can be used to incorporate Li salts into other filler materials for CPEs.
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Affiliation(s)
- Jianming Yu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Chao Wang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Shiheng Li
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Nian Liu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jia Zhu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
| | - Zhenda Lu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing, 210093, P. R. China
- Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing, 210023, P. R. China
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7
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Xu H, Gao J, Li M, Zhao Y, Zhang M, Zhao T, Wang L, Jiang W, Zhu G, Qian X, Fan Y, Yang J, Luo W. Mesoporous WO 3 Nanofibers With Crystalline Framework for High-Performance Acetone Sensing. Front Chem 2019; 7:266. [PMID: 31058141 PMCID: PMC6482242 DOI: 10.3389/fchem.2019.00266] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 04/01/2019] [Indexed: 12/03/2022] Open
Abstract
Semiconducting metal oxides with abundant active sites are regarded as promising candidates for environmental monitoring and breath analysis because of their excellent gas sensing performance and stability. Herein, mesoporous WO3 nanofibers with a crystalline framework and uniform pore size is successfully synthesized in an aqueous phase using an electrospinning method, with ammonium metatungstate as the tungsten sources, and SiO2 nanoparticles and polyvinylpyrrolidone as the sacrificial templates. The obtained mesoporous WO3 nanofibers exhibit a controllable pore size of 26.3–42.2 nm, specific surface area of 24.1–34.4 m2g−1, and a pore volume of 0.15–0.24 cm3g−1. This unique hierarchical structure, with uniform mesopores and interconnected channels, could facilitate the diffusion and transportation of gas molecules in the framework. Gas sensors, based on mesoporous WO3 nanofibers, exhibit an excellent performance in acetone sensing with a low limit of detection (<1 ppm), short response-recovery time (24 s/27 s), a linear relationship in a broad range, and good selectivity.
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Affiliation(s)
- Haiyun Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Jie Gao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Minhan Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Yuye Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Ming Zhang
- Materials Genome Institute, Shanghai University, Shanghai, China
| | - Tao Zhao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Lianjun Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Wan Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.,Institute of Functional Materials, Donghua University, Shanghai, China.,School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, China
| | - Guanjia Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Xiaoyong Qian
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Yuchi Fan
- Institute of Functional Materials, Donghua University, Shanghai, China
| | - Jianping Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.,Institute of Functional Materials, Donghua University, Shanghai, China
| | - Wei Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China.,Institute of Functional Materials, Donghua University, Shanghai, China
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8
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Dorneles MF, Oréfice RL. Aluminosilicate nanofibers with ordered pores derived from block copolymer electrospun nanofibers. J Appl Polym Sci 2018. [DOI: 10.1002/app.46868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M. F. Dorneles
- School of Engineering; Federal University of Minas Gerais (UFMG); Av. Antônio Carlos, 6627 - Pampulha, Belo Horizonte Minas Gerais 31270-901 Brazil
| | - R. L. Oréfice
- School of Engineering; Federal University of Minas Gerais (UFMG); Av. Antônio Carlos, 6627 - Pampulha, Belo Horizonte Minas Gerais 31270-901 Brazil
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9
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Hu M, Kang W, Zhong Z, Cheng B, Xing W. Porphyrin-Functionalized Hierarchical Porous Silica Nanofiber Membrane for Rapid HCl Gas Detection. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02902] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, PR China
| | - Weimin Kang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, PR China
| | - Bowen Cheng
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, PR China
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10
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Chattopadhyay S, Bysakh S, Saha J, De G. Electrospun ZrO 2 nanofibers: precursor controlled mesopore ordering and evolution of garland-like nanocrystal arrays. Dalton Trans 2018; 47:5789-5800. [PMID: 29644370 DOI: 10.1039/c8dt00415c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We observed that the hydrolysis-condensation reaction of precursors makes a significant difference in constructing ordered mesopores in electrospun ZrO2 nanofibers. Transmission-SAXS studies confirm the generation of uniform clusters of size ∼1.44 nm in the ZrOCl2·8H2O (inorganic salt) derived sol due to its relatively slow hydrolysis-condensation process. These initial -Zr-O-Zr- clusters acted as building blocks to form uniform 3D ordered cubic (Pm3[combining macron]m) mesopores in the presence of Pluronic F127 surfactant. In contrast, the commonly used Zr-alkoxide (zirconium n-propoxide) precursor, which is highly hydrolysable even after the use of a controlling agent, generates larger clusters with broad size distributions due to the uncontrolled hydrolysis-condensation of alkoxy groups. Accordingly, in the presence of F127, the alkoxide derived sol yielded disordered mesopores in the resultant fibers. XRD under dynamic heating conditions (up to 900 °C) and the corresponding TEM studies of the ZrOCl2·8H2O derived nanofibers confirmed the retention of mesopores even in the extremely thin nanofibers (diameter ∼15-25 nm) after the amorphous to crystal phase transformation (cubic/tetragonal). An interesting morphological transformation has been observed in the nanofibers at 900 °C where the fibers have been uniformly segmented by distinct single nanocrystals (width ∼15-65 nm) with mesopores. Further heat-treatment at 1100 °C made these segmented nanofibers nonporous, and a garland-like appearance with monoclinic nanocrystal arrays was formed.
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Affiliation(s)
- Shreyasi Chattopadhyay
- Nano-Structured Materials Division, CSIR-Central Glass and Ceramic Research Institute, 196, Raja S. C. Mullick Road, Kolkata 700032, India.
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11
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Hromádko L, Koudelková E, Bulánek R, Macak JM. SiO 2 Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance. ACS OMEGA 2017; 2:5052-5059. [PMID: 31457782 PMCID: PMC6641703 DOI: 10.1021/acsomega.7b00770] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/14/2017] [Indexed: 06/10/2023]
Abstract
Facile and innovative route for large-scale synthesis of SiO2 fibers with excellent textural properties and H2O adsorption performance is presented. At first, a three-dimensional network of SiO2 precursor fibers was produced from tailored spun solutions (without any toxic elements and surfactants) by centrifugal spinning, which is a very modern fiber-synthesis technique, with numerous advantages over electrospinning. Upon thermal annealing of the precursor fibers, mesoporous amorphous SiO2 fibers with an ultrahigh surface area of up to 824 m2/g and pore size distribution in the range of 2-10 nm were produced. Owing to the high number of OH groups available on the surface, the produced SiO2 fibers showed significantly better performance in H2O adsorption compared to that of the reference silicagel.
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Affiliation(s)
- Luděk Hromádko
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, Pardubice 530 02, Czech Republic
| | - Eva Koudelková
- Department
of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice 530 02, Czech Republic
| | - Roman Bulánek
- Department
of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice 530 02, Czech Republic
| | - Jan M. Macak
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, Pardubice 530 02, Czech Republic
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Saha J, Radhakrishnan TP. Soft Chemical Fabrication of Iron-Based Thin Film Electrocatalyst for Water Oxidation under Neutral pH and Structure-Activity Tuning by Cerium Incorporation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8372-8382. [PMID: 28817279 DOI: 10.1021/acs.langmuir.7b01647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Design of electrocatalysts for the fundamentally important oxygen evolution reaction can be greatly aided by systematic structure-activity tuning via composition variation. We have explored the iron-cerium system as they are the most abundant transition and rare earth metals, and also due to the mutualistic impact of their size and electronic attributes that can induce critical changes in the structure and electrochemical activity. Submicrometer thick films of a series of Fe(III)-Ce(III) phosphate(oxyhydroxide) (FeCePH) are fabricated using a soft chemical strategy involving surfactant-aided assembly, spin-coating, and mild thermal annealing. FT-IR, Raman, and X-ray photoelectron spectroscopies, chemical analysis, X-ray diffraction, and electron microscopy reveal the systematic structural, electronic, and morphological variation, on tuning the iron-cerium composition. Nitrogen adsorption-desorption studies show the surface area increasing and pore size distribution shrinking with the cerium content, indicating its structure-directing role. The electrocatalysis of water oxidation by FeCePH films on FTO-coated glass is studied in neutral pH conditions. The overpotential and Tafel slope decrease with increasing cerium content, reaching minima at the optimal Fe:Ce ratio of 1:0.5; the turnover frequency shows a corresponding increase and maximum. The trends are explained on the basis of the structural changes in the films, and the coupling of Ce3+/Ce4+ with Fe3+/Fe4+ that leads to active state regeneration. This study presents a rational strategy to tune the efficiency of easily fabricated transition metal-based electrocatalyst thin films through rare earth metal incorporation; it should prove useful in the design of cost-effective catalysts for water oxidation.
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Affiliation(s)
- Jony Saha
- School of Chemistry, University of Hyderabad , Hyderabad 500 046, India
| | - T P Radhakrishnan
- School of Chemistry, University of Hyderabad , Hyderabad 500 046, India
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13
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Saha J, Chowdhury DR, Jash P, Paul A. Cobalt Phosphonates as Precatalysts for Water Oxidation: Role of Pore Size in Catalysis. Chemistry 2017; 23:12519-12526. [DOI: 10.1002/chem.201700882] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Indexed: 02/05/2023]
Affiliation(s)
- Jony Saha
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal, MP; 462066 India
| | - Debarati Roy Chowdhury
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal, MP; 462066 India
| | - Priyajit Jash
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal, MP; 462066 India
| | - Amit Paul
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal, MP; 462066 India
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14
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Chakravarty A, Maiti S, Mahanty S, De G. Green Synthesis of Electrospun Porous Carbon Nanofibers from Sucrose and Doping of Ag Nanoparticle with Improved Electrical and Electrochemical Properties. ChemistrySelect 2017. [DOI: 10.1002/slct.201601920] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amrita Chakravarty
- Nano-Structured Materials Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
| | - Sandipan Maiti
- Fuel Cell & Battery Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
| | - Sourindra Mahanty
- Fuel Cell & Battery Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
| | - Goutam De
- Nano-Structured Materials Division; CSIR-Central Glass & Ceramic Research Institute; 196, Raja S. C. Mullick Road Kolkata 700032 India
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15
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Fabrication of MCM-41 fibers with well-ordered hexagonal mesostructure controlled in acidic and alkaline media. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.07.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li X, Zhang Q, Ahmad Z, Huang J, Ren Z, Weng W, Han G, Mao C. Near-infrared luminescent CaTiO 3:Nd 3+ nanofibers with tunable and trackable drug release kinetics. J Mater Chem B 2015; 3:7449-7456. [PMID: 27398215 PMCID: PMC4934121 DOI: 10.1039/c5tb01158b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
750-850 nm (NIR I) and 1000-1400 nm (NIR II) in the near infrared (NIR) spectra are two windows of optical transparency for biological tissues with the latter capable of penetrating tissue deeper. Monitoring drug release from the drug carrier is still a daunting challenge in the field of nanomedicine. To overcome such a challenge, we propose to use porous Nd3+-doped CaTiO3 nanofibers, which can be excited by NIR I to emit NIR II light, to carry drugs to test the concept of monitoring drug release from the nanofibers by detecting the NIR II emission intensity. Towards this end, we first used electrospinning to prepare porous Nd3+-doped CaTiO3 nanofibers by adding micelle-forming surfactant Pluronic F127, followed by annealing to remove the organic component. After a model drug, ibuprofen, was loaded into the porous nanofibers, the drug release from the nanofibers into the phosphate buffered saline (PBS) solution was monitored by detecting the NIR II emission from the nanofibers. We found that the release of the drug molecules from the nanofibers into the PBS solution triggers the quenching of NIR II emission by the hydroxyl groups in the surrounding media. Consequently, more drug release corresponded to more reduction in the intensity of the NIR II emission, allowing us to monitor the drug release by simply detecting the intensity of NIR II from the nanofibers. In addition, we demonstrated that tuning the amount of micelle-forming surfactant Pluronic F127 enabled us to tune the porosity of the nanofibers and thus the drug release kinetics. This study suggests that Nd3+ doped CaTiO3 nanostructures can serve as a promising drug delivery platform with the potential to monitor drug release kinetics by detecting the tissue-penetrating NIR emission.
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Affiliation(s)
- Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Qiuhong Zhang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester, LE1 9BH, UK
| | - Jie Huang
- Department of Mechanical Engineering, University College London, London, WC1E 7JE, UK
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Wenjian Weng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Chuanbin Mao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma, 73019-5300, USA
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Zhang Q, Li X, Ren Z, Han G, Mao C. Synthesis of CaTiO 3 Nanofibers with Controllable Drug-Release Kinetics. Eur J Inorg Chem 2015; 2015:4532-4538. [PMID: 27818612 PMCID: PMC5091301 DOI: 10.1002/ejic.201500737] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Indexed: 11/06/2022]
Abstract
Calcium titanate (CaTiO3) nanofibers with controlled microstructure were fabricated by a combination of sol-gel and electrospinning approaches. The fiber morphology has been found to rely significantly on the precursor composition. Altering the volume ratio of ethanol to acetic acid from 3.5 to 1.25 enables the morphology of the CaTiO3 nanofibers to be transformed from fibers with a circular cross section to curved ribbon-like structures. Ibuprofen (IBU) was used as a model drug to investigate the drug-loading capacity and drug-release profile of the nanofibers. It was found that the BET surface area and the pore volume decrease markedly with the utilization of F127 surfactant. The nanofibers synthesized without F127 surfactant present the highest drug-loading capacity and the most sustained release kinetics. This study suggests that calcium titanate nanofibers can offer a promising platform for localized drug delivery.
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Affiliation(s)
- Qiuhong Zhang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Chuanbin Mao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019-5300, USA
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Si Y, Mao X, Zheng H, Yu J, Ding B. Silica nanofibrous membranes with ultra-softness and enhanced tensile strength for thermal insulation. RSC Adv 2015. [DOI: 10.1039/c4ra12271b] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel silica nanofibrous membranes with ultra-softness of 40 mN and enhanced tensile strength of 5.5 MPa were prepared for the first time via an electrospinning process, which exhibited an ultra-low thermal conductivity of 0.0058 W m−1 K−1.
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Affiliation(s)
- Yinsong Si
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Xue Mao
- Nanomaterials Research Center
- Modern Textile Institute
- Donghua University
- Shanghai 200051
- China
| | - Hongxia Zheng
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Jianyong Yu
- Nanomaterials Research Center
- Modern Textile Institute
- Donghua University
- Shanghai 200051
- China
| | - Bin Ding
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
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Hou H, Wang L, Gao F, Wei G, Tang B, Yang W, Wu T. General Strategy for Fabricating Thoroughly Mesoporous Nanofibers. J Am Chem Soc 2014; 136:16716-9. [DOI: 10.1021/ja508840c] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Huilin Hou
- Institute
of Materials, Ningbo University of Technology, Ningbo 315016, P. R. China
- Research
Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Lin Wang
- Institute
of Materials, Ningbo University of Technology, Ningbo 315016, P. R. China
| | - Fengmei Gao
- Institute
of Materials, Ningbo University of Technology, Ningbo 315016, P. R. China
| | - Guodong Wei
- Institute
of Materials, Ningbo University of Technology, Ningbo 315016, P. R. China
| | - Bin Tang
- Research
Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Weiyou Yang
- Institute
of Materials, Ningbo University of Technology, Ningbo 315016, P. R. China
| | - Tom Wu
- Materials
Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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Saha J, Bhowmik K, Das I, De G. Pd–Ni alloy nanoparticle doped mesoporous SiO2film: the sacrificial role of Ni to resist Pd-oxidation in the C–C coupling reaction. Dalton Trans 2014; 43:13325-32. [DOI: 10.1039/c4dt01438c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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