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Surface Characterization of Carbonaceous Materials Using Inverse Gas Chromatography: A Review. ELECTROCHEM 2020. [DOI: 10.3390/electrochem1040024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
It is essential to understand the adsorption of guest molecules on carbon-based materials for both theoretical and practical reasons. It is crucial to analyze the surface properties of carbon-based materials with a wide range of applications (e.g., catalyst supports, hydrogen storage, sensors, adsorbents, separation media, etc.). Inverse gas chromatography (IGC) as a powerful and sensitive technique can be used to characterize the surface physicochemical properties (i.e., Brunauer-Emmett-Teller (BET) surface area, surface energy heterogeneity, heat of adsorption, specific interaction of adsorption, work of cohesion, glass transition temperatures, solubility, and so forth) of various types of materials such as powders, films, and fibers. In this review, the principles, common methods, and application of IGC are discussed. In addition, the examples of various experiments developed for the IGC to characterize the carbonaceous materials (such as carbon nanotubes, graphite, and activated carbon) are discussed.
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Luo Y, Chen X, Wu S, Cao S, Luo Z, Shi Y. Molecular Dynamics Simulation Study on Two-Component Solubility Parameters of Carbon Nanotubes and Precisely Tailoring the Thermodynamic Compatibility between Carbon Nanotubes and Polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9291-9305. [PMID: 32787072 DOI: 10.1021/acs.langmuir.0c01736] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Solubility parameters play an important role in predicting compatibility between components. The current study on solubility parameters of carbon materials (graphene, carbon nanotubes, and fullerene, etc.) is unsatisfactory and stagnant due to experimental limitations, especially the lack of a quantitative relationship between functional groups and solubility parameters. Fundamental understanding of the high-performance nanocomposites obtained by carbon material modification is scarce. Therefore, in the past, the trial and error method was often used for the modification of carbon materials, and no theory has been formed to guide the experiment. In this work, the effect of defects, size, and the number of walls on the Hildebrand solubility parameter (δT) of carbon nanotubes (CNTs) was investigated by molecular dynamics (MD) simulation. Besides, three-component Hansen solubility parameters (δD, δp, δH) were transformed into two-component solubility parameters (δvdW, δelec). The quantitative relation between functional groups and two-component solubility parameters of single-walled carbon nanotubes (SWCNTs) was then given. An important finding is that the δT and δvdW of SWCNTs first decrease, reach a minimum, and then increase with increasing grafting ratio. The thermodynamic compatibility between functionalized SWCNTs and six typical polymers was investigated by the Flory-Huggins mixing model. Two-component solubility parameters were proven to be able to effectively predict their compatibility. Importantly, we theoretically gave the optimum grafting ratio at which the compatibility between functionalized SWCNTs and polymers is the best. The functionalization principle of SWCNTs toward good compatibility between SWCNTs and polymers was also given. This study gives a new insight into the solubility parameters of functionalized SWCNTs and provides theoretical guidance for the preparation of high-performance SWCNTs/polymers composites.
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Affiliation(s)
- Yanlong Luo
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
- Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xianling Chen
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Sizhu Wu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Songyuan Cao
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 21009, P. R. China
| | - Zhenyang Luo
- College of Science, Nanjing Forestry University, Nanjing 210037, P. R. China
- Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Yijun Shi
- Division of Machine Elements, Luleå University of Technology, 97187 Luleå, Sweden
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Rodríguez C, Briano S, Leiva E. Increased Adsorption of Heavy Metal Ions in Multi-Walled Carbon Nanotubes with Improved Dispersion Stability. Molecules 2020; 25:molecules25143106. [PMID: 32650371 PMCID: PMC7397306 DOI: 10.3390/molecules25143106] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 02/07/2023] Open
Abstract
In recent years, carbon nanotubes (CNTs) have been intensively studied as an effective adsorbent for the removal of pollutants from wastewater. One of the main problems for its use corresponds to the agglomeration of the CNTs due to the interactions between them, which prevents using their entire surface area. In this study, we test the effect of dispersion of oxidized multi-walled carbon nanotubes (MWCNTs) on the removal of heavy metals from acidic solutions. For this, polyurethane filters were dyed with a well-dispersed oxidized MWCNTs solution using chemical and mechanical dispersion methods. Filters were used in column experiments, and the sorption capacity increased more than six times (600%) compared to experiments with suspended MWCNTs. Further, kinetic experiments showed a faster saturation on MWCNTs in column experiments. These results contribute to a better understanding of the effect of dispersion on the use of CNTs as heavy metal ions adsorbent.
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Affiliation(s)
- Carolina Rodríguez
- Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (C.R.); (S.B.)
| | - Sebastián Briano
- Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (C.R.); (S.B.)
| | - Eduardo Leiva
- Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (C.R.); (S.B.)
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
- Correspondence: ; Tel.: +56-2-2354-7224; Fax: +56-2-2354-5876
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Lu P, Ni Z, Chen G, Qian S. The Influence of SBF on Surface Properties of Irradiated GO/UHMWPE Nanocomposites. RUSS J APPL CHEM+ 2018. [DOI: 10.1134/s1070427218070169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wu Y, Guo Y, Song H, Liu W, Yang Y, Liu Y, Sang N, Zuo YY, Liu S. Oxygen content determines the bio-reactivity and toxicity profiles of carbon black particles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 150:207-214. [PMID: 29276956 DOI: 10.1016/j.ecoenv.2017.12.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/15/2017] [Accepted: 12/20/2017] [Indexed: 05/05/2023]
Abstract
In spite of the considerable efforts invested to understand the environmental health and safety (EHS) impacts of ultrafine particles, such as the representative PM2.5, there are still significant knowledge gaps to be filled. No conclusive understandings have been obtained about the physicochemical determinants in accounting for differential adverse outcomes. Here we compared the cytotoxicity of four carbon black (CB) particles with similar physicochemical properties except for their oxygen contents (C824455 < C1864 < Printex U < SB4A). We found that these four CB particles manifested in vitro and in vivo cytotoxicity reversely related to their oxygen contents, namely a hierarchy of cytotoxicity: C824455 > C1864 > Printex U > SB4A. Among these CB particles, the most significant lung injury (e.g. collapses and inflammation) and macrophagic activation were found for C824455 and C1864, in particular for C824455. All these differences in toxicity profiles, including in vitro and in vivo cytotoxicity, pro-inflammatory effects and direct damages to the lung epithelia, should be (at least partially) ascribed to the oxygen content in these CB particles that in turn determined their transformation, i.e. the different aggregation states. Nonetheless, PM2.5 likewise caused severe in vivo and in vitro toxicities to the lung cells and macrophages. This study thus offers more insights into the structure-activity relationship (SAR) and opens a new avenue to elucidate the physicochemical determinants in evoking lung injuries by ultrafine airborne particles.
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Affiliation(s)
- Yakun Wu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yifan Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Haoyang Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Wei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yi Yang
- Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, HI 96822, United States
| | - Yajun Liu
- Beijing Jishuitan Hospital, Peking University Health Science Center, Beijing 100035, PR China
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, PR China
| | - Yi Y Zuo
- Department of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, HI 96822, United States
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Arras MM, He B, Jandt KD. High molar mass amphiphilic block copolymer enables alignment and dispersion of unfunctionalized carbon nanotubes in melt-drawn thin-films. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.08.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Kim YS, Oh JY, Kim JH, Shin MH, Jeong YC, Sung SJ, Park J, Yang SJ, Park CR. Crucial Role of Oxidation Debris of Carbon Nanotubes in Subsequent End-Use Applications of Carbon Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17552-17564. [PMID: 28460171 DOI: 10.1021/acsami.7b00667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A facile purification method for oxidized carbon nanotubes (CNTs) is developed to preserve acidic carbon compounds (ACCs) for achieving high-quality dispersion of CNTs. The remaining ACCs, which originated from the surface destruction of CNTs during the oxidation process, are considered to play a crucial role in the dispersion of CNTs in water and various polar protic solvents. To elucidate the concrete role of ACCs, a direct titration method is applied to quantitatively investigate the degree of ionization of both CNTs and ACCs in their aqueous dispersions. While ACCs with strong carboxylic groups (pKa of around 2.9) are easily removed by the neutral or base washing of oxidized CNTs, which is common in the purification process, ACC-selective purification using acid washing preserves the ACCs attached to CNTs, thereby effectively stabilizing CNT dispersions in aqueous solutions. Additionally, the Hansen solubility parameters of ACC-preserved and ACC-removed CNTs were determined by the inverse gas chromatography method to estimate their miscibility in various solvents. The preserved ACCs significantly influenced the dispersibility of CNTs in polar protic solvents, which may widen the possible application of CNTs. Specifically, the ACC-preserved high-quality CNT dispersion produces high-performance CNT buckypaper with densely packed nanostructures. The Young's modulus and tensile strength of these buckypapers reach up to 12.0 and 91.0 MPa, respectively, which exceed those of ACC-removed CNTs in previous reports.
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Affiliation(s)
- Yern Seung Kim
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Jun Young Oh
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
- Advanced Nanohybrids Laboratory, Department of Applied Organic Materials Engineering, Inha University , Incheon 22212, Republic of Korea
| | - Jae Ho Kim
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Min Ho Shin
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Yo Chan Jeong
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Sae Jin Sung
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Jisoo Park
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Seung Jae Yang
- Advanced Nanohybrids Laboratory, Department of Applied Organic Materials Engineering, Inha University , Incheon 22212, Republic of Korea
| | - Chong Rae Park
- Carbon Nanomaterials Design Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University , Seoul 08826, Republic of Korea
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Plisko TV, Bildyukevich AV. Debundling of multiwalled carbon nanotubes in N, N-dimethylacetamide by polymers. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3305-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kharissova OV, Kharisov BI, de Casas Ortiz EG. Dispersion of carbon nanotubes in water and non-aqueous solvents. RSC Adv 2013. [DOI: 10.1039/c3ra43852j] [Citation(s) in RCA: 182] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Lee K, Lim HJ, Yang SJ, Kim YS, Park CR. Determination of solubility parameters of single-walled and double-walled carbon nanotubes using a finite-length model. RSC Adv 2013. [DOI: 10.1039/c3ra40382c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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