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Sprockel AJ, Khan MA, de Ruiter M, Alting MT, Macmillan KA, Haase MF. Fabrication of bijels with sub-micron domains via a single-channel flow device. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Huang D, An Q, Wang L, Li T, Liu M, Wu Y. Multi-active sites in situ formed on Schiff-base Pd(II)/Cu(II) self-assembly monolayer supported on graphene oxide: A simple protocol to enhance the catalytic activity. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2022.112846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Shen X, Yang J, Zhang J, Jiang H, Du Y, Chen R. Insights into the Solvent Effect on the Synthesis of Pd@PC-COFs for Phenol Hydrogenation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Xinhui Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing211816, P.R. China
| | - Jingwen Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing211816, P.R. China
| | - Jiuxuan Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing211816, P.R. China
| | - Hong Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing211816, P.R. China
| | - Yan Du
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing211816, P.R. China
| | - Rizhi Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing211816, P.R. China
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Choi YW, Yoo SS, Lee JH, Moon MW, Yoo PJ. Graphite/SnSe hybrid-embedded monolithic foams with hierarchical and bimodal pores for high performance solar desalination membranes with spontaneous salt rejection. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Siegel H, Sprockel AJ, Schwenger MS, Steenhoff JM, Achterhuis I, de Vos WM, Haase MF. Synthesis and Polyelectrolyte Functionalization of Hollow Fiber Membranes Formed by Solvent Transfer Induced Phase Separation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43195-43206. [PMID: 36106768 PMCID: PMC9523618 DOI: 10.1021/acsami.2c10343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Ultrafiltration membranes are important porous materials to produce freshwater in an increasingly water-scarce world. A recent approach to generate porous membranes is solvent transfer induced phase separation (STrIPS). During STrIPS, the interplay of liquid-liquid phase separation and nanoparticle self-assembly results in hollow fibers with small surface pores, ideal structures for applications as filtration membranes. However, the underlying mechanisms of the membrane formation are still poorly understood, limiting the control over structure and properties. To address this knowledge gap, we study the nonequilibrium dynamics of hollow fiber structure evolution. Confocal microscopy reveals the distribution of nanoparticles and monomers during STrIPS. Diffusion simulations are combined with measurements of the interfacial elasticity to investigate the effect of the solvent concentration on nanoparticle stabilization. Furthermore, we demonstrate the separation performance of the membrane during ultrafiltration. To this end, polyelectrolyte multilayers are deposited on the membrane, leading to tunable pores that enable the removal of dextran molecules of different molecular weights (>360 kDa, >60 kDa, >18 kDa) from a feed water stream. The resulting understanding of STrIPS and the simplicity of the synthesis process open avenues to design novel membranes for advanced separation applications.
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Affiliation(s)
- Henrik Siegel
- Van’t
Hoff Laboratory of Physical and Colloid Chemistry, Department of Chemistry,
Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Alessio J. Sprockel
- Van’t
Hoff Laboratory of Physical and Colloid Chemistry, Department of Chemistry,
Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Matthew S. Schwenger
- Henry
M. Rowan College of Engineering, Rowan University, Glassboro, New Jersey 08028, United States
| | - Jesse M. Steenhoff
- Van’t
Hoff Laboratory of Physical and Colloid Chemistry, Department of Chemistry,
Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Iske Achterhuis
- Faculty
of Science and Technology, Membrane Surface Science, Membrane Science
and Technology, MESA+ Institute of Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
| | - Wiebe M. de Vos
- Faculty
of Science and Technology, Membrane Surface Science, Membrane Science
and Technology, MESA+ Institute of Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
| | - Martin F. Haase
- Van’t
Hoff Laboratory of Physical and Colloid Chemistry, Department of Chemistry,
Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
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Yeo SJ, Oh MJ, Kim Y, Weon BM, Kwon SJ, Yoo PJ. Controlled synthesis of solid-shelled non-spherical and faceted microbubbles. NANOSCALE 2022; 14:12581-12588. [PMID: 36039694 DOI: 10.1039/d2nr03741f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The ability to control the shape of hollow particles (e.g., capsules or bubbles) holds great promise for enhancing the encapsulation efficiency and mechanical/optical properties. However, conventional preparation methods suffer from a low yield, difficulty in controlling the shape, and a tedious production process, limiting their widespread application. Here, we present a method for fabricating polyhedral graphene oxide (GO)-shelled microbubbles with sharp edges and vertices, which is based on the microfluidic generation of spherical compound bubbles followed by shell deformation. Sphere-to-polytope deformation is a result of the shell instability due to gradual outward gas transport, which is dictated by Laplace pressure across the shell. The shape-variant behaviours of the bubbles can also be attributed to the compositional heterogeneity of the shells. In particular, the high degree of control of microfluidic systems enables the formation of non-spherical bubbles with various shapes; the structural motifs of the bubbles are easily controlled by varying the size and thickness of the mid-shell in compound bubbles, ranging from tetrahedra to octahedra. The strategy presented in this study provides a new route for fabricating 3D structured solid bubbles, which is particularly advantageous for the development of high-performance mechanical or thermal material applications.
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Affiliation(s)
- Seon Ju Yeo
- Department of Nature-Inspired System and Application, Korea Institute of Machinery & Materials (KIMM), Daejeon 34103, Republic of Korea
| | - Min Jun Oh
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Youngsoo Kim
- Department of Nature-Inspired System and Application, Korea Institute of Machinery & Materials (KIMM), Daejeon 34103, Republic of Korea
| | - Byung Mook Weon
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Seok Joon Kwon
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Pil J Yoo
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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Li Z, Song E, Ren R, Zhao W, Li T, Liu M, Wu Y. Pd-Pd/PdO as active sites on intercalated graphene oxide modified by diaminobenzene: fabrication, catalysis properties, synergistic effects, and catalytic mechanism. RSC Adv 2022; 12:8600-8610. [PMID: 35424835 PMCID: PMC8984910 DOI: 10.1039/d2ra00658h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/04/2022] [Indexed: 11/21/2022] Open
Abstract
Pd-Pd/PdO nanoclusters well dispersed on intercalated graphene oxide (GO) (denoted as GO@PPD-Pd) were prepared and characterized. GO@PPD-Pd exhibited high catalytic activity (a TOF value of 60 705 h-1) during the Suzuki coupling reaction, and it could be reused at least 6 times. The real active centre was Pd(200)-Pd(200)/PdO(110, 102). A change in the Pd facets on the surface of PdO was a key factor leading to deactivation, and the aggregation and loss of active centres was also another important reason. The catalytic mechanism involved heterogeneous catalysis, showing that the catalytic processes occurred at the interface, including substrate adsorption, intermediate formation, and product desorption. The real active centres showed enhanced negative charge due to the transfer of electrons from the carrier and ligands, which could effectively promote the oxidative addition reaction, and Pd(200) and the heteroconjugated Pd/PdO interface generated in situ also participated in the coupling process, synergistically boosting activity. Developed GO@PPD-Pd was a viable heterogeneous catalyst that may have practical applications owing to its easy synthesis and stability, and this synergistic approach can be utilized to develop other transition-metal catalysts.
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Affiliation(s)
- Zihan Li
- College of Chemistry and Molecular Engineering, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 P. R. China (+)86-371-67766667
| | - Erran Song
- College of Chemistry and Molecular Engineering, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 P. R. China (+)86-371-67766667
| | - Ruirui Ren
- College of Chemistry and Molecular Engineering, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 P. R. China (+)86-371-67766667
| | - Wuduo Zhao
- College of Chemistry and Molecular Engineering, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 P. R. China (+)86-371-67766667
| | - Tiesheng Li
- College of Chemistry and Molecular Engineering, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 P. R. China (+)86-371-67766667
| | - Minghua Liu
- Henan Institute of Advanced Technology, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 Henan Province P. R. China
- Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences Zhongguancun North First Street 2 Beijing 100190 P. R. China
| | - Yangjie Wu
- College of Chemistry and Molecular Engineering, Zhengzhou University Kexuedadao 100 Zhengzhou 450001 P. R. China (+)86-371-67766667
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Qiu B, Wang Y, Chen J, Chen Y, Fan S, Mai Z, Liu J, Bai K, Deng L, Xiao Z. Catalytic membrane micro-reactor with nano Cu/ZIF-8 assembly in membrane pores by flowing synthesis combining partial ion-exchange. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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