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Lamm ME, Li K, Qian J, Wang L, Lavoine N, Newman R, Gardner DJ, Li T, Hu L, Ragauskas AJ, Tekinalp H, Kunc V, Ozcan S. Recent Advances in Functional Materials through Cellulose Nanofiber Templating. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005538. [PMID: 33565173 DOI: 10.1002/adma.202005538] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/05/2020] [Indexed: 06/12/2023]
Abstract
Advanced templating techniques have enabled delicate control of both nano- and microscale structures and have helped thrust functional materials into the forefront of society. Cellulose nanomaterials are derived from natural polymers and show promise as a templating source for advanced materials. Use of cellulose nanomaterials in templating combines nanoscale property control with sustainability, an attribute often lacking in other templating techniques. Use of cellulose nanofibers for templating has shown great promise in recent years, but previous reviews on cellulose nanomaterial templating techniques have not provided extensive analysis of cellulose nanofiber templating. Cellulose nanofibers display several unique properties, including mechanical strength, porosity, high water retention, high surface functionality, and an entangled fibrous network, all of which can dictate distinctive aspects in the final templated materials. Many applications exploit the unique aspects of templating with cellulose nanofibers that help control the final properties of the material, including, but not limited to, applications in catalysis, batteries, supercapacitors, electrodes, building materials, biomaterials, and membranes. A detailed analysis on the use of cellulose nanofibers templating is provided, addressing specifically how careful selection of templating mechanisms and methodologies, combined toward goal applications, can be used to directly benefit chosen applications in advanced functional materials.
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Affiliation(s)
- Meghan E Lamm
- Manufacturing Demonstration Facility, Energy and Transportation Science Division, Oak Ridge National Laboratory, 2350 Cherahala Boulevard, Knoxville, TN, 37932, USA
| | - Kai Li
- Chemical Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN, 37831, USA
| | - Ji Qian
- Department of Mechanical Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Lu Wang
- Advanced Structures and Composites Center, University of Maine, 35 Flagstaff Road, Orono, ME, 04469, USA
- School of Forest Resources, University of Maine, 5755 Nutting Hall, Orono, ME, 04469, USA
| | - Nathalie Lavoine
- Department of Forest Biomaterials, College of Natural Resources, North Carolina State University, Raleigh, NC, 27695, USA
| | - Reagan Newman
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Douglas J Gardner
- Advanced Structures and Composites Center, University of Maine, 35 Flagstaff Road, Orono, ME, 04469, USA
- School of Forest Resources, University of Maine, 5755 Nutting Hall, Orono, ME, 04469, USA
| | - Teng Li
- Department of Mechanical Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Arthur J Ragauskas
- Center for BioEnergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Joint Institute for Biological Sciences, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA
- Department of Forestry, Wildlife and Fisheries, Center for Renewable Carbon, The University of Tennessee Institute of Agriculture, Knoxville, TN, 37996, USA
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Estabrook Road, Knoxville, TN, 37916, USA
| | - Halil Tekinalp
- Manufacturing Demonstration Facility, Energy and Transportation Science Division, Oak Ridge National Laboratory, 2350 Cherahala Boulevard, Knoxville, TN, 37932, USA
| | - Vlastimil Kunc
- Manufacturing Demonstration Facility, Energy and Transportation Science Division, Oak Ridge National Laboratory, 2350 Cherahala Boulevard, Knoxville, TN, 37932, USA
| | - Soydan Ozcan
- Manufacturing Demonstration Facility, Energy and Transportation Science Division, Oak Ridge National Laboratory, 2350 Cherahala Boulevard, Knoxville, TN, 37932, USA
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Poolakkandy RR, Menamparambath MM. Soft-template-assisted synthesis: a promising approach for the fabrication of transition metal oxides. NANOSCALE ADVANCES 2020; 2:5015-5045. [PMID: 36132034 PMCID: PMC9417152 DOI: 10.1039/d0na00599a] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/18/2020] [Indexed: 05/27/2023]
Abstract
The past few decades have witnessed transition metal oxides (TMOs) as promising candidates for a plethora of applications in numerous fields. The exceptional properties retained by these materials have rendered them of paramount emphasis as functional materials. Thus, the controlled and scalable synthesis of transition metal oxides with desired properties has received enormous attention. Out of different top-down and bottom-up approaches, template-assisted synthesis predominates as an adept approach for the facile synthesis of transition metal oxides, owing to its phenomenal ability for morphological and physicochemical tuning. This review presents a comprehensive examination of the recent advances in the soft-template-assisted synthesis of TMOs, focusing on the morphological and physicochemical tuning aided by different soft-templates. The promising applications of TMOs are explained in detail, emphasizing those with excellent performances.
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Affiliation(s)
| | - Mini Mol Menamparambath
- Department of Chemistry, National Institute of Technology Calicut Calicut-673601 Kerala India
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Qi LL, Zhong CY, Deng ZH, Dai TT, Chang JQ, Wang SM, Fang XD, Meng G. Bacterial cellulose templated p-Co3O4/n-ZnO nanocomposite with excellent VOCs response performance. CHINESE J CHEM PHYS 2020. [DOI: 10.1063/1674-0068/cjcp2003038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Ling-li Qi
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
- Advanced Laser Technology Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230037, China
| | | | - Zan-hong Deng
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230037, China
| | - Tian-tian Dai
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Jun-qing Chang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Shi-mao Wang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230037, China
| | - Xiao-dong Fang
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230037, China
- Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen 518118, China
| | - Gang Meng
- Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- Advanced Laser Technology Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230037, China
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Lin D, Liu Z, Shen R, Chen S, Yang X. Bacterial cellulose in food industry: Current research and future prospects. Int J Biol Macromol 2020; 158:1007-1019. [PMID: 32387361 DOI: 10.1016/j.ijbiomac.2020.04.230] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 04/10/2020] [Accepted: 04/26/2020] [Indexed: 12/11/2022]
Abstract
Bacterial cellulose, a pure exocellular polysaccharide produced by microorganisms, has many excellent properties as compared with plant-derived cellulose, including high water holding capability, high surface area, rheological properties, biocompatibility. Due to its suspending, thickening, water holding, stabilizing, bulking and fluid properties, BC has been demonstrated as a promising low calorie bulking ingredient for the development of novel rich functional foods of different forms such as powder gelatinous or shred foams, which facilitate its application in food industry. In this review, the recent reports on the biosynthesis, structure and general application of bacterial cellulose in food industry have been summarized and discussed. The main application of bacterial cellulose in current food industry includes raw food materials, additive ingredients, packing materials, delivery system, enzyme and cell immobilizers. In addition, we also propose the potential challenges and explore the solution of expanding the application of BC in various fields.
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Affiliation(s)
- Dehui Lin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China.
| | - Zhe Liu
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Rui Shen
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Siqian Chen
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China.
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
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Kumar A, I Matari IA, Han SS. 3D printable carboxylated cellulose nanocrystal-reinforced hydrogel inks for tissue engineering. Biofabrication 2020; 12:025029. [DOI: 10.1088/1758-5090/ab736e] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Hanif Z, Siddiqui MF, Park SJ. Hierarchical growth of nickel oxyhydroxide on bacterial cellulose hydrogel: role of water channels in hydrogel to form hierarchical structure. ASIA-PAC J CHEM ENG 2020. [DOI: 10.1002/apj.2415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zahid Hanif
- School of Mechanical EngineeringKorea University of Technology and Education (KOREATECH) Cheonan Republic of Korea
- Advanced Technology Research CenterKorea University of Technology and Education (KOREATECH) Cheonan Republic of Korea
| | - Mohd Farhan Siddiqui
- School of Mechanical EngineeringKorea University of Technology and Education (KOREATECH) Cheonan Republic of Korea
| | - Sung Jea Park
- School of Mechanical EngineeringKorea University of Technology and Education (KOREATECH) Cheonan Republic of Korea
- Advanced Technology Research CenterKorea University of Technology and Education (KOREATECH) Cheonan Republic of Korea
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Liu SH, Lu JS, Yang SW. Highly visible-light-responsive Cu 2O/rGO decorated with Fe 3O 4@SiO 2 nanoparticles as a magnetically recyclable photocatalyst. NANOTECHNOLOGY 2018; 29:305606. [PMID: 29737305 DOI: 10.1088/1361-6528/aac305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The rhombic dodecahedral cuprous oxide-reduced graphene oxide/core-shell Fe3O4@SiO2 composites (denoted as rCu2O-rGO/Fe3O4@SiO2) are successfully synthesized facilely via a wet-chemical route. The resulting rCu2O-rGO/Fe3O4@SiO2 combines the unique structure of Cu2O, electronic characteristics of reduced graphene oxide (rGO) and magnetic property of Fe3O4@SiO2 to be an effective and recoverable photocatalyst for the degradation of methyl orange (MO). The obtained results show that rCu2O-rGO/Fe3O4@SiO2 is capable of completely degrading MO in the presence of a very low catalyst concentration (0.125 g l-1) within a short time (60 min) under visible light compared to the reported catalysts. The observations may be due to the distinctive interfacial structures of rhombic dodecahedral Cu2O nanoparticles connected to rGO sheets that can enhance the separation of photogenerated electron-hole pairs, stabilize the Cu2O and increase MO adsorption, as evidenced by a variety of spectroscopic analyses (transmission electron microscopy, x-ray photoelectron spectroscopy and photoluminescence). More importantly, these efficient photocatalysts can easily be recovered under a magnetic field and remain highly photoactive towards the degradation of MO after cyclic tests, and may be promising photocatalysts for practical applications in the solar-energy purification of wastewater.
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Affiliation(s)
- Shou-Heng Liu
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan
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Li S, Lin Q, Liu X, Yang L, Ding J, Dong F, Li Y, Irfan M, Zhang P. Fast photocatalytic degradation of dyes using low-power laser-fabricated Cu2O–Cu nanocomposites. RSC Adv 2018; 8:20277-20286. [PMID: 35541679 PMCID: PMC9080756 DOI: 10.1039/c8ra03117g] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 05/28/2018] [Indexed: 11/21/2022] Open
Abstract
Facile synthesis of Cu2O–Cu nanocomposites by using a low-power CO2laser was realized, and the fabricated nanomaterials showed excellent photocatalytic activity for the degradation of various dyes.
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Affiliation(s)
- Shengling Li
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Qingxia Lin
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Xianhua Liu
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Li Yang
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Jie Ding
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Feng Dong
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Yang Li
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Muhammad Irfan
- Tianjin Key Lab. of Indoor Air Environmental Quality Control
- School of Environmental Science and Engineering
- Tianjin University
- Tianjin
- PR China
| | - Pingping Zhang
- College of Food Science and Engineering
- Tianjin Agricultural University
- Tianjin
- PR China
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Oun AA, Rhim JW. Characterization of carboxymethyl cellulose-based nanocomposite films reinforced with oxidized nanocellulose isolated using ammonium persulfate method. Carbohydr Polym 2017; 174:484-492. [DOI: 10.1016/j.carbpol.2017.06.121] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 06/14/2017] [Accepted: 06/29/2017] [Indexed: 10/19/2022]
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Luo H, Li W, Ao H, Li G, Tu J, Xiong G, Zhu Y, Wan Y. Preparation, structural characterization, and in vitro cell studies of three-dimensional SiO 2-CaO binary glass scaffolds built ofultra-small nanofibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:94-101. [PMID: 28482610 DOI: 10.1016/j.msec.2017.02.134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/20/2016] [Accepted: 02/24/2017] [Indexed: 12/25/2022]
Abstract
Three-dimensional (3D) nanofibrous scaffolds hold great promises in tissue engineering and regenerative medicine. In this work, for the first time, 3D SiO2-CaO binary glass nanofibrous scaffolds have been fabricated via a combined method of template-assisted sol-gel and calcination by using bacterial cellulose as the template. SEM with EDS, TEM, and AFM confirm that the molar ratio of Ca to Si and fiber diameter of the resultant SiO2-CaO nanofibers can be controlled by immersion time in the solution of tetraethyl orthosilicate and ethanol. The optimal immersion time was 6h which produced the SiO2-CaO binary glass containing 60at.% Si and 40at.% Ca (named 60S40C). The fiber diameter of 60S40C scaffold is as small as 29nm. In addition, the scaffold has highly porous 3D nanostructure with dominant mesopores at 10.6nm and macropores at 20μm as well as a large BET surface area (240.9m2g-1), which endow the 60S40C scaffold excellent biocompatibility and high ALP activity as revealed by cell studies using osteoblast cells. These results suggest that the 60S40C scaffold has great potential in bone tissue regeneration.
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Affiliation(s)
- Honglin Luo
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China; School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Wei Li
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China.
| | - Haiyong Ao
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
| | - Gen Li
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
| | - Junpin Tu
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
| | - Guangyao Xiong
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
| | - Yong Zhu
- School of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Yizao Wan
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China; School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
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Liu SH, Wei YS, Lu JS. Visible-light-driven photodegradation of sulfamethoxazole and methylene blue by Cu2O/rGO photocatalysts. CHEMOSPHERE 2016; 154:118-123. [PMID: 27043377 DOI: 10.1016/j.chemosphere.2016.03.107] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/22/2016] [Accepted: 03/23/2016] [Indexed: 06/05/2023]
Abstract
The cuprous oxide-reduced graphene oxide (Cu2O/rGO-x) composites were prepared via a simple wet-chemical method by using CuSO4·5H2O and graphene oxide as precursors and ascorbic acid as a reducing agent, respectively. These Cu2O/rGO-x were employed as photocatalysts for degrading emerging contaminants and organic dye pollutants (i.e., sulfamethoxazole (SMX) and methylene blue (MB)) under visible light. A variety of different spectroscopic and analytical techniques, such as X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman scattering spectroscopy and UV-Visible spectroscopy were used to characterize the physical properties of photocatalysts. In the photodegrading experiments, it can be found that the Cu2O/rGO-80 photocatalyst has the superior visible-light response of ca. 50% removal efficiency of SMX within 120 min and 100% removal efficiency of MB within 40 min. These observations may be attributed the well-dispersed and visible-light-responsive Cu2O nanoparticles are supported on the surface of rGO sheets that can enhance absorption of visible light during photocatalysis.
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Affiliation(s)
- Shou-Heng Liu
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Yu-Shao Wei
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Jun-Sheng Lu
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan
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12
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Qin X, He F, Chen L, Meng Y, Liu J, Zhao N, Huang Y. Oxygen-vacancy modified TiO2 nanoparticles as enhanced visible-light driven photocatalysts by wrapping and chemically bonding with graphite-like carbon. RSC Adv 2016. [DOI: 10.1039/c5ra27209b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, an effective composite photocatalyst (TC800) was prepared which exhibits higher photocatalytic activity under visible light than previously reported TiO2/non-graphene carbon compounds.
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Affiliation(s)
- Xiuqi Qin
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Fang He
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Lixia Chen
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Yuhuan Meng
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Jing Liu
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Naiqin Zhao
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
| | - Yuan Huang
- Tianjin Key Laboratory of Composite and Functional Materials
- Department of Materials Science and Engineering
- Tianjin University
- Tianjin
- P. R. China
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Hong T, Tao F, Lin J, Ding W, Lan M. One-pot synthesis of hierarchical Cu2O/Cu hollow microspheres with enhanced visible-light photocatalytic activity. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.04.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Wang J, Lu X, Ng PF, Lee KI, Fei B, Xin JH, Wu JY. Polyethylenimine coated bacterial cellulose nanofiber membrane and application as adsorbent and catalyst. J Colloid Interface Sci 2015; 440:32-8. [DOI: 10.1016/j.jcis.2014.10.035] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 10/18/2014] [Indexed: 11/24/2022]
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15
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Wan Y, Yang Z, Xiong G, Raman SR, Luo H. Bacterial cellulose-templated synthesis of free-standing silica nanotubes with a three-dimensional network structure. RSC Adv 2015. [DOI: 10.1039/c5ra08658b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Free-standing silica nanotubes with a three-dimensional network structure were prepared via a template-assisted sol–gel process by using bacterial cellulose as a template and catalyst and for calcination.
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Affiliation(s)
- Yizao Wan
- School of Mechanical and Electrical Engineering
- East China Jiaotong University
- Nanchang 330013
- China
- School of Materials Science and Engineering
| | - Zhiwei Yang
- School of Materials Science and Engineering
- Tianjin Key Laboratory of Composite and Functional Materials
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- Tianjin University
| | - Guangyao Xiong
- School of Mechanical and Electrical Engineering
- East China Jiaotong University
- Nanchang 330013
- China
| | - Sudha R. Raman
- Department of Community and Family Medicine
- Duke University
- USA
| | - Honglin Luo
- School of Materials Science and Engineering
- Tianjin Key Laboratory of Composite and Functional Materials
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- Tianjin University
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Luo H, Zhang J, Xiong G, Wan Y. Evolution of morphology of bacterial cellulose scaffolds during early culture. Carbohydr Polym 2014; 111:722-8. [PMID: 25037408 DOI: 10.1016/j.carbpol.2014.04.097] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 03/03/2014] [Accepted: 04/28/2014] [Indexed: 11/25/2022]
Abstract
Morphological characteristics of a fibrous tissue engineering (TE) scaffold are key parameters affecting cell behavior. However, no study regarding the evolution of morphology of bacterial cellulose (BC) scaffolds during the culture process has been reported to date. In this work, BC scaffolds cultured for different times starting from 0.5h were characterized. The results demonstrated that the formation of an integrated scaffold and its 3D network structure, porosity, fiber diameter, light transmittance, and the morphology of hydroxyapatite (HAp)-deposited BC scaffolds changed with culture time. However, the surface and crystal structure of BC fibers did not change with culture time and no difference was found in the crystal structure of HAp deposited on BC templates regardless of BC culture time. The findings presented herein suggest that proper selection of culture time can potentially enhance the biological function of BC TE scaffold by optimizing its morphological characteristics.
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Affiliation(s)
- Honglin Luo
- School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China
| | - Jing Zhang
- School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China
| | - Guangyao Xiong
- School of Mechanical and Electrical Engineering, East China Jiaotong University, Nanchang 330013, Jiangxi, PR China
| | - Yizao Wan
- School of Materials Science and Engineering, Tianjin University, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, PR China.
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Wu T, Gao J, Xu X, Wang W, Gao C, Qiu H. A new rapid chemical route to prepare reduced graphene oxide using copper metal nanoparticles. NANOTECHNOLOGY 2013; 24:215604. [PMID: 23619742 DOI: 10.1088/0957-4484/24/21/215604] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Copper metal nanoparticles were used as a reducing agent to reduce graphene oxide (GO). The reaction was complete in about 10 min and did not involve the use of any toxic reagents or acids that are typically used in the reduction of GO by Zn and Fe powders. The high reduction activity of the Cu nanoparticles, compared to Cu powder, may be the result of the formation of Cu₂O nanoparticles. The effect of the mass ratio of the metal to GO for this reduction was also investigated. The reduction of the GO was verified by ultraviolet-visible absorption spectroscopy, x-ray diffraction, thermogravimetric analysis, Raman spectroscopy, x-ray photoelectron spectroscopy and transmission electron microscopy. After reduction, Cu₂O supported on reduced GO was formed and showed superior catalytic ability for the degradation of a model dye pollutant, methylene blue.
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Affiliation(s)
- Tao Wu
- School of Science, Tianjin University, Tianjin 300072, People's Republic of China
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