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Wang F, Zhang T, Zhang T, He T, Ran F. Recent Progress in Improving Rate Performance of Cellulose-Derived Carbon Materials for Sodium-Ion Batteries. NANO-MICRO LETTERS 2024; 16:148. [PMID: 38466498 DOI: 10.1007/s40820-024-01351-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/08/2024] [Indexed: 03/13/2024]
Abstract
Cellulose-derived carbon is regarded as one of the most promising candidates for high-performance anode materials in sodium-ion batteries; however, its poor rate performance at higher current density remains a challenge to achieve high power density sodium-ion batteries. The present review comprehensively elucidates the structural characteristics of cellulose-based materials and cellulose-derived carbon materials, explores the limitations in enhancing rate performance arising from ion diffusion and electronic transfer at the level of cellulose-derived carbon materials, and proposes corresponding strategies to improve rate performance targeted at various precursors of cellulose-based materials. This review also presents an update on recent progress in cellulose-based materials and cellulose-derived carbon materials, with particular focuses on their molecular, crystalline, and aggregation structures. Furthermore, the relationship between storage sodium and rate performance the carbon materials is elucidated through theoretical calculations and characterization analyses. Finally, future perspectives regarding challenges and opportunities in the research field of cellulose-derived carbon anodes are briefly highlighted.
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Affiliation(s)
- Fujuan Wang
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China
| | - Tianyun Zhang
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China.
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China.
| | - Tian Zhang
- School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China
| | - Tianqi He
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China
| | - Fen Ran
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China.
- School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China.
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Chen T, Li J, Xu J, Gao Y, Zhu S, Wang B, Ying G. Effect of Acetylation of Two Cellulose Nanocrystal Polymorphs on Processibility and Physical Properties of Polylactide/Cellulose Nanocrystal Composite Film. Molecules 2023; 28:4667. [PMID: 37375221 DOI: 10.3390/molecules28124667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 05/29/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023] Open
Abstract
Polylactide (PLA) has become a popular alternative for petroleum-based plastics to reduce environmental pollution. The broader application of PLA is hampered by its brittle nature and incompatibility with the reinforcement phase. The aim of our work was to improve the ductility and compatibility of PLA composite film and investigate the mechanism by which nanocellulose enhances PLA polymer. Here, we present a robust PLA/nanocellulose hybrid film. Two different allomorphic cellulose nanocrystals (CNC-I and CNC-III) and their acetylated products (ACNC-I and ACNC-III) were used to realize better compatibility and mechanical performance in a hydrophobic PLA matrix. The tensile stress of the composite films with 3% ACNC-I and ACNC-III increased by 41.55% and 27.22% compared to pure PLA film, respectively. Compared to the CNC-I or CNC-III enhanced PLA composite films, the tensile stress of the films increased by 45.05% with 1% ACNC-I and 56.15% with 1% ACNC-III. In addition, PLA composite films with ACNCs showed better ductility and compatibility because the composite fracture gradually transitioned to a ductile fracture during the stretching process. As a result, ACNC-I and ACNC-III were found to be excellent reinforcing agents for the enhancement of the properties of polylactide composite film, and the replacement some petrochemical plastics with PLA composites would be very promising in actual life.
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Affiliation(s)
- Tong Chen
- Plant Fiber Materials Research Center, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jun Li
- Plant Fiber Materials Research Center, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jun Xu
- Plant Fiber Materials Research Center, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510006, China
| | - Yi Gao
- Plant Fiber Materials Research Center, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shiyun Zhu
- Plant Fiber Materials Research Center, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Bin Wang
- Plant Fiber Materials Research Center, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guangdong Ying
- Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining 272100, China
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Guo Y, You Y, Guo G, Chen Z, Peng W, Hu L, Liang S, Xie H. Facile preparation of cellulose/lignosulfonate derivatives composite films with high UV-shielding and gas barrier properties. Int J Biol Macromol 2023; 237:124218. [PMID: 36990419 DOI: 10.1016/j.ijbiomac.2023.124218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Herein, a serial of full cellulose and lignosulfonate derivatives (LS), including sodium lignosulfonate (LSS), calcium lignosulfonate (LSC), lignosulfonic acid (LSA), composite films were generated through dissolving cellulose in reversible carbon dioxide (CO2) ionic liquids solvent system (TMG/EG/DMSO/CO2 solvent system), followed by a facile solution-gelation transition and absorption strategy. The findings indicated that LS aggregated and embedded inside the cellulose matrix via H-bond interaction. The cellulose/LS derivatives composite films showed good mechanical properties which the tensile strength reaches the maximum value of 94.7 MPa in MCC3LSS film. While for the MCC1LSS film, the breaking strain increases to 11.6 %. The outstanding UV shielding effect and high transmittance in the visible region of composite films were also achieved and the shielding performance of the whole UV region (200-400 nm) tended to 100 % for MCC5LSS film. In addition, thiol-ene click reaction was selected as model reaction to verify the UV-shielding performance. It was also found that the oxygen and water vapor barrier performances of composite films were evidently associated with the intense H-bond interaction and tortuous path effect. The OP and WVP of MCC5LSS film were 0 and 6 × 10-3 g·μm/m2·day·kPa, respectively. These outstanding properties make them with great potential for packaging field.
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He H, Teng H, An F, Wang Y, Qiu R, Chen L, Song H. Nanocelluloses review: Preparation, biological properties, safety, and applications in the food field. FOOD FRONTIERS 2023. [DOI: 10.1002/fft2.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Hong He
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch Fuzhou Fujian China
| | - Hui Teng
- College of Food Science and Technology Guangdong Ocean University Zhanjiang China
| | - Fengping An
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch Fuzhou Fujian China
| | - Yiwei Wang
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
| | - Renhui Qiu
- College of Material Engineering Fujian Agriculture and Forestry University Fuzhou China
| | - Lei Chen
- College of Food Science and Technology Guangdong Ocean University Zhanjiang China
| | - Hongbo Song
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch Fuzhou Fujian China
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Chen C, Xi P, Zhang S, Zhang L, Sun Y, Yao J, Fang K, Jiang Y. Nanocellulose with unique character converted directly from plants without intensive mechanical disintegration. Carbohydr Polym 2022; 293:119730. [DOI: 10.1016/j.carbpol.2022.119730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/02/2022]
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Wu W, He H, Dong Q, Wang Y, An F, Song H. Structural and rheological properties of nanocellulose with different polymorphs, nanocelluloses I and II, prepared by natural deep eutectic solvents from sugarcane bagasse. Int J Biol Macromol 2022; 220:892-900. [DOI: 10.1016/j.ijbiomac.2022.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/21/2022] [Accepted: 08/03/2022] [Indexed: 11/05/2022]
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Recent advancement in isolation, processing, characterization and applications of emerging nanocellulose: A review. Int J Biol Macromol 2022; 206:954-976. [PMID: 35304199 DOI: 10.1016/j.ijbiomac.2022.03.064] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 02/08/2023]
Abstract
The emergence of nanocellulose from various natural resources as a promising nanomaterial has been gaining interest for a wide range application. Nanocellulose serves as an excellent candidate since it contributes numerous superior properties and functionalities. In this review, details of the three main nanocellulose categorised: cellulose nanocrystal (CNC), cellulose nanofibril (CNF), and bacterial nanocellulose (BNC) have been described. We focused on the preparation and isolation techniques to produce nanocellulose including alkaline pre-treatment, acid hydrolysis, TEMPO-mediated oxidation, and enzymatic hydrolysis. The surface modification of nanocellulose through esterification, silylation, amidation, phosphorylation, and carboxymethylation to improve the diverse applications has also been reviewed. Some invigorating perspectives on the applications, challenges, and future directions on the relevant issues regarding nanocellulose are also presented.
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Ponnusamy PG, Sharma S, Mani S. Cotton noil based cellulose microfibers reinforced polylactic acid composite films for improved water vapor and ultraviolet light barrier properties. J Appl Polym Sci 2022. [DOI: 10.1002/app.52329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Suraj Sharma
- Department of Textiles, Merchandising, and Interiors University of Georgia Athens Georgia USA
| | - Sudhagar Mani
- School of Chemical, Materials and Biomedical Engineering, University of Georgia Athens Georgia USA
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9
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Zhou Z, Xu J, Zhu S, Yu W, Li J, Li J, Wang B, Chen K. A design with natural polysaccharide particles and cationic conditioning agent as efficient emulsifier for hair care. Carbohydr Polym 2022; 286:119311. [DOI: 10.1016/j.carbpol.2022.119311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 11/02/2022]
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10
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Ali A, Aziz T, Zheng J, Hong F, Awad MF, Manan S, Haq F, Ullah A, Shah MN, Javed Q, Kubar AA, Guo L. Modification of Cellulose Nanocrystals With 2-Carboxyethyl Acrylate in the Presence of Epoxy Resin for Enhancing its Adhesive Properties. Front Bioeng Biotechnol 2022; 9:797672. [PMID: 35155406 PMCID: PMC8832013 DOI: 10.3389/fbioe.2021.797672] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/20/2021] [Indexed: 12/30/2022] Open
Abstract
Cellulose nanocrystals (CNCs) have unparalleled advantages in the preparation of nanocomposites for various applications. However, a major challenge associated with CNCs in nanocomposite preparation is the lack of compatibility with hydrophobic polymers. The hydrophobic modification of CNCs has attracted increasing interest in the modern era standing with long challenges and being environmentally friendly. Here, we synthesized CNCs by using cotton as raw material and then modified them with 2-carboxyethyl acrylate to improve their corresponding mechanical, adhesive, contact angle, and thermal properties. Different concentrations (1–5 wt%) of CNCs were used as modifiers to improve the interfacial adhesion between the reinforced CNCs and E-51 (Bisphenol A diglycidyl ether) epoxy resin system. CNCs offered a better modulus of elasticity, a lower coefficient of energy, and thermal expansion. Compared with the standard sample, the modified CNCs (MCNCs) showed high shear stress, high toughness, efficient degradation, thermal stability, and recycling due to the combined effect of the hyperbranched topological structure of epoxy with good compatibility. The native CNCs lost their hydrophilicity after modification with epoxy, and MCNCs showed good hydrophobic behavior (CA = 105 ± 2°). The findings of this study indicate that modification of CNCs with 2-carboxyethyl acrylate in the presence of epoxy resin and the enhancement of the features would further expand their applications to different sectors.
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Affiliation(s)
- Amjad Ali
- Research School of Polymeric Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, China
| | - Tariq Aziz
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
- *Correspondence: Tariq Aziz, ; Li Guo,
| | - Jieyuan Zheng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Fan Hong
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Mahamed F. Awad
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Sehrish Manan
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Fazal Haq
- Department of Chemistry, Gomal University, Dera Ismail Khan, Pakistan
| | - Asmat Ullah
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, China
| | - Muhammad Naeem Shah
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China
| | - Qaiser Javed
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Ameer Ali Kubar
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, China
| | - Li Guo
- Research School of Polymeric Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, China
- *Correspondence: Tariq Aziz, ; Li Guo,
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11
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Seidi F, Yazdi MK, Jouyandeh M, Habibzadeh S, Munir MT, Vahabi H, Bagheri B, Rabiee N, Zarrintaj P, Saeb MR. Crystalline polysaccharides: A review. Carbohydr Polym 2022; 275:118624. [PMID: 34742405 DOI: 10.1016/j.carbpol.2021.118624] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 08/26/2021] [Accepted: 08/26/2021] [Indexed: 12/12/2022]
Abstract
The biodegradability and mechanical properties of polysaccharides are dependent on their architecture (linear or branched) as well as their crystallinity (size of crystals and crystallinity percent). The amount of crystalline zones in the polysaccharide significantly governs their ultimate properties and applications (from packaging to biomedicine). Although synthesis, characterization, and properties of polysaccharides have been the subject of several review papers, the effects of crystallization kinetics and crystalline domains on the properties and application have not been comprehensively addressed. This review places focus on different aspects of crystallization of polysaccharides as well as applications of crystalline polysaccharides. Crystallization of cellulose, chitin, chitosan, and starch, as the main members of this family, were discussed. Then, application of the aforementioned crystalline polysaccharides and nano-polysaccharides as well as their physical and chemical interactions were overviewed. This review attempts to provide a complete picture of crystallization-property relationship in polysaccharides.
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Affiliation(s)
- Farzad Seidi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Mohsen Khodadadi Yazdi
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Maryam Jouyandeh
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Sajjad Habibzadeh
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | | | - Henri Vahabi
- Université de Lorraine, CentraleSupélec, LMOPS, F-57000 Metz, France
| | - Babak Bagheri
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Navid Rabiee
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Iran
| | - Payam Zarrintaj
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, United States
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland.
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12
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Okara nanocellulose fabricated using combined chemical and mechanical treatments: Structure and properties. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116231] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Lugoloobi I, Maniriho H, Jia L, Namulinda T, Shi X, Zhao Y. Cellulose nanocrystals in cancer diagnostics and treatment. J Control Release 2021; 336:207-232. [PMID: 34102221 DOI: 10.1016/j.jconrel.2021.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 12/11/2022]
Abstract
Cancer is currently a major threat to public health, being among the principal causes of death to the global population. With carcinogenesis mechanisms, cancer invasion, and metastasis remaining blurred, cancer diagnosis and novel drug delivery approaches should be developed urgently to enable management and treatment. A dream break-through would be a non-invasive instantaneous monitoring of cancer initiation and progression to fast-track diagnosis for timely specialist treatment decisions. These innovations would enhance the established treatment protocols, unlimited by evasive biological complexities during tumorigenesis. It is therefore contingent that emerging and future scientific technologies be equally biased towards such innovations by exploiting the apparent properties of new developments and materials especially nanomaterials. CNCs as nanomaterials have undisputable physical and excellent biological properties that enhanced their interest as biomedical materials. This article therefore highlights CNCs utility in cancer diagnosis and therapy. Their extraction, properties, modification, in-vivo/in-vitro medical applications, biocompatibility, challenges and future perspectives are precisely discussed.
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Affiliation(s)
- Ishaq Lugoloobi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China.
| | - Hillary Maniriho
- Department of Biochemistry and Human Molecular Genetics, Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Liang Jia
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Tabbisa Namulinda
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yili Zhao
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.
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Changling Wu, McClements DJ, He M, Fan Z, Li Y, Teng F. Preparation of okara cellulose hydrogels using ionic liquids: Structure, properties, and performance. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Crystalline stability of cellulose III nanocrystals in the hydrothermal treatment and NaOH solution. Carbohydr Polym 2020; 249:116827. [PMID: 32933674 DOI: 10.1016/j.carbpol.2020.116827] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 07/22/2020] [Accepted: 07/22/2020] [Indexed: 01/12/2023]
Abstract
To better understand the system and conversion of cellulose allomorphs, cellulose III nanocrystals (CNC-III) were used to investigate the crystalline stability of cellulose III in the hydrothermal condition and a lower concentrated NaOH-water system. It was shown that H2O or alkali played an important role in the process of polymorphic transformation. The CNC-III allomorph turned back to cellulose I with an extremely low crystallinity (∼4.18 %) during hydrothermal process at 90-95 °C, or cellulose II when the temperature excessed boiling point (≥100 °C). Furthermore, CNC-III could be rapidly dissolved in an aqueous NaOH (∼7 wt.%) without a pre-cooled treatment to obtain its stable solution. Afterwards, cellulose II with a steady average crystallite size (∼34) was acquired after the regeneration process via dialysis with distilled water. The polymorphic transformation was also analyzed by X-ray diffraction (XRD), solid-state 13C nuclear magnetic resonance (13C NMR).
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16
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Quartz Sand Filter Media with Special Wettability for Continuous and Efficient Oil/Water Separation and Dye Adsorption. Processes (Basel) 2020. [DOI: 10.3390/pr8091083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
For continuous and efficient oil/water separation and adsorption of dyes, coconut shell powder was grafted onto the surface of quartz sand by dip-coating method to make coconut shell powder-covered quartz sand filter media (CSQS) with superhydrophilic and underwater superoleophobic properties and superoleophilic and underoil highly hydrophobic properties. The contact angles of the underwater oil and underoil water with CSQS were more than 151.2° and 134.2°, respectively. A continuous oil/water separation device was designed. The separation device filled with CSQS can separate oil/water mixture (whether heavy or light oil) into water and oil at the same time with a separation efficiency of above 99.92%. The filter layer can be recovered through reverse extrusion even after lyophobic liquid penetrated the filter layer; hence, the separation efficiency of the filter layer was still above 99.99% for diesel and water mixture. Simultaneously, CSQS can effectively adsorb methylene blue with the highest removal rate as 98.94%. CSQS can maintain stable wettability under harsh environment conditions. This paper provides a new idea on continuous and efficient oil/water separation and simultaneous dye adsorption.
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Delepierre G, Eyley S, Thielemans W, Weder C, Cranston ED, Zoppe JO. Patience is a virtue: self-assembly and physico-chemical properties of cellulose nanocrystal allomorphs. NANOSCALE 2020; 12:17480-17493. [PMID: 32808640 DOI: 10.1039/d0nr04491a] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Cellulose nanocrystals (CNCs) are bio-based rod-like nanoparticles with a quickly expanding market. Despite the fact that a variety of production routes and starting cellulose sources are employed, all industrially produced CNCs consist of cellulose I (CNC-I), the native crystalline allomorph of cellulose. Here a comparative study of the physico-chemical properties and liquid crystalline behavior of CNCs produced from cellulose II (CNC-II) and typical CNC-I is reported. CNC-I and CNC-II are isolated by sulfuric acid hydrolysis of cotton and mercerized cotton, respectively. The two allomorphs display similar surface charge densities and ζ-potentials and both have a right-handed twist, but CNC-II have a slightly smaller average length and aspect ratio, and are less hygroscopic. Interestingly, the self-assembly behavior of CNC-I and CNC-II in water is different. Whilst CNC-I forms a chiral nematic phase, CNC-II initially phase separates into an upper isotropic and a lower nematic liquid crystalline phase, before a slow reorganization into a large-pitch chiral nematic texture occurs. This is potentially caused by a combination of factors, including the inferred faster rotational diffusion of CNC-II and the different crystal structures of CNC-I and CNC-II, which are responsible for the presence and absence of a giant dipole moment, respectively.
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Affiliation(s)
- Gwendoline Delepierre
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland and University of British Columbia, 2424 Main Mall, Vancouver, BC V6 T 1Z4, Canada.
| | - Samuel Eyley
- Sustainable Materials Lab, Chemical Engineering, KU Leuven Kulak Kortrijk Campus, E. Sabbelaan 53 box 7659, 8500 Kortrijk, Belgium
| | - Wim Thielemans
- Sustainable Materials Lab, Chemical Engineering, KU Leuven Kulak Kortrijk Campus, E. Sabbelaan 53 box 7659, 8500 Kortrijk, Belgium
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Emily D Cranston
- University of British Columbia, 2424 Main Mall, Vancouver, BC V6 T 1Z4, Canada.
| | - Justin O Zoppe
- Omya International AG, Baslerstrasse 42, 4665, Oftringen, Switzerland.
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