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Guo M, Liu Q, Lu S, Han R, Fu K, Song C, Ji N, Lu X, Ma D, Liu C. Synthesis of Silanol-Rich MCM-48 with Mixed Surfactants and Their Application in Acetone Adsorption: Equilibrium, Kinetic, and Thermodynamic Studies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11528-11537. [PMID: 32883083 DOI: 10.1021/acs.langmuir.0c01933] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mesoporous silica MCM-48 with rich silanol was prepared using polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide (CTAB) as mixed templates, and the dynamic adsorption performance of acetone was evaluated by testing breakthrough curves. The mixed micelle formed by CTAB and PVP, as well as the hydrogen bond between the carbonyl group of PVP and silanol group affected the condensation process of Si-OH group during the formation of mesoporous structure, resulting in the increase of Si-OH group number on the surface of MCM-48. Compared with MCM-48 synthesized by single template (CTAB), the acetone adsorption capacity of MCM-48 (1:3) synthesized by mixed templates (PVP:CTAB = 1:3) improved by 23.86%, which was attributed to the increase of silanol group amount and the decrease of pore size. In addition, Bangham model had the highest goodness of fit to describe the adsorption process among four kinetic models for the adsorbents, conforming to the mechanism of pore diffusion. The Langmuir and Freundlich models were used to fit the adsorption isotherm data, and the Freundlich model could better describe the adsorption of acetone. Freundlich model fitting results showed that MCM-48 with rich silanol had a strong affinity for acetone, and the adsorption of acetone on MCM-48 belonged to multilayer adsorption. The thermodynamic results showed that the adsorption of MCM-48 for acetone was physical adsorption, and the adsorption behavior was exothermic. This work provided insight into how the inherent properties of an adsorbent and environmental factors (including initial concentration and adsorption temperature) affected the adsorption performance of ketones, thus more ideas could be provided for the accurate design of adsorbents. Furthermore, silanol-rich MCM-48 synthesized by mixed templates is expected to be a promising adsorbent for acetone removal.
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Affiliation(s)
- Miao Guo
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
| | - Qingling Liu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
| | - Shuangchun Lu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
| | - Rui Han
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
| | - Kaixuan Fu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
| | - Chunfeng Song
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
| | - Na Ji
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
| | - Xuebin Lu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
| | - Degang Ma
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
| | - Caixia Liu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China
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Yin H, Zheng P, Zhao J, Shen W. The inter-micellar interaction enthalpies of DTAB/TX100 mixed micelles and their structural transitions. SOFT MATTER 2017; 13:5888-5896. [PMID: 28766643 DOI: 10.1039/c7sm00912g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The heats of mixing for a series of DTAB/TX100 mixed surfactant aqueous solutions were measured by flow-mixing calorimetry and isothermal titration calorimetry (ITC) at 298.15 K and 85 kPa, which were used to calculate the inter-micellar interaction enthalpies (-ΔHC). The signs of -ΔHC for pure DTAB and TX100 micellar systems were contrary to the inter-micellar interaction parameters reported for the same systems in the literature, suggesting that these interaction parameters might have a Gibbs free energy character dominated by entropy changes. It was found that the inter-micellar interaction enthalpies varied with the total surfactant concentration and the mixed ratio of the two surfactants, and characterized different structures of the mixed micelles. These phenomena were discussed based on the effects of structural water around the micellar interface, the hydration of counterions, and the repulsive Coulombic interaction.
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Affiliation(s)
- Handi Yin
- Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
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Yang XY, Chen LH, Li Y, Rooke JC, Sanchez C, Su BL. Hierarchically porous materials: synthesis strategies and structure design. Chem Soc Rev 2017; 46:481-558. [DOI: 10.1039/c6cs00829a] [Citation(s) in RCA: 839] [Impact Index Per Article: 119.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review addresses recent advances in synthesis strategies of hierarchically porous materials and their structural design from micro-, meso- to macro-length scale.
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Affiliation(s)
- Xiao-Yu Yang
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Li-Hua Chen
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Yu Li
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
| | - Joanna Claire Rooke
- Laboratory of Inorganic Materials Chemistry (CMI)
- University of Namur
- B-5000 Namur
- Belgium
| | - Clément Sanchez
- Chimie de la Matiere Condensee de Paris
- UniversitePierre et Marie Curie (Paris VI)
- Collège de France
- France
| | - Bao-Lian Su
- State Key Laboratory Advanced Technology for Materials Synthesis and Processing
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- China
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Kuroda Y, Shimbo Y, Sakamoto Y, Wada H, Kuroda K. A Mesoporous Superlattice Consisting of Alternately Stacking Interstitial Nanospace within Binary Silica Colloidal Crystals. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yoshiyuki Kuroda
- Waseda Institute for Advanced Study; Waseda University; 1-6-1 Nishiwaseda Shinjuku-ku Tokyo 169-8050 Japan
| | - Yosuke Shimbo
- Department of Applied Chemistry; Waseda University; 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Yasuhiro Sakamoto
- PRESTO, Japan, Science and Technology Agency (JST); 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
- Department of Physics; Osaka University; 1-1 Machikaneyamacho Toyonaka-shi Osaka 560-0043 Japan
| | - Hiroaki Wada
- Department of Applied Chemistry; Waseda University; 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry; Waseda University; 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Science and Technology; Waseda University; 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan
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Microfibres and macroscopic films from the coordination-driven hierarchical self-assembly of cylindrical micelles. Nat Commun 2016; 7:12371. [PMID: 27538877 PMCID: PMC4992161 DOI: 10.1038/ncomms12371] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Accepted: 06/24/2016] [Indexed: 01/08/2023] Open
Abstract
Anisotropic nanoparticles prepared from block copolymers are of growing importance as building blocks for the creation of synthetic hierarchical materials. However, the assembly of these structural units is generally limited to the use of amphiphilic interactions. Here we report a simple, reversible coordination-driven hierarchical self-assembly strategy for the preparation of micron-scale fibres and macroscopic films based on monodisperse cylindrical block copolymer micelles. Coordination of Pd(0) metal centres to phosphine ligands immobilized within the soluble coronas of block copolymer micelles is found to induce intermicelle crosslinking, affording stable linear fibres comprised of micelle subunits in a staggered arrangement. The mean length of the fibres can be varied by altering the micelle concentration, reaction stoichiometry or aspect ratio of the micelle building blocks. Furthermore, the fibres aggregate on drying to form robust, self-supporting macroscopic micelle-based thin films with useful mechanical properties that are analogous to crosslinked polymer networks, but on a longer length scale.
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Kuroda Y, Shimbo Y, Sakamoto Y, Wada H, Kuroda K. A Mesoporous Superlattice Consisting of Alternately Stacking Interstitial Nanospace within Binary Silica Colloidal Crystals. Angew Chem Int Ed Engl 2016; 55:10702-6. [DOI: 10.1002/anie.201605027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Yoshiyuki Kuroda
- Waseda Institute for Advanced Study; Waseda University; 1-6-1 Nishiwaseda Shinjuku-ku Tokyo 169-8050 Japan
| | - Yosuke Shimbo
- Department of Applied Chemistry; Waseda University; 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Yasuhiro Sakamoto
- PRESTO, Japan, Science and Technology Agency (JST); 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
- Department of Physics; Osaka University; 1-1 Machikaneyamacho Toyonaka-shi Osaka 560-0043 Japan
| | - Hiroaki Wada
- Department of Applied Chemistry; Waseda University; 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry; Waseda University; 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Science and Technology; Waseda University; 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan
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