1
|
Chen X, Magniez K, Zhang P, Kujawski W, Chen Z, Dumée LF. A "Green" Stirring Plasma Functionalization Strategy for Controllable Oxygen-Containing Functional Groups on Octa-Methyl POSS Microstructure. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2770. [PMID: 37887921 PMCID: PMC10609975 DOI: 10.3390/nano13202770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023]
Abstract
The distinctive cage-like structure of polyhedral oligomeric silsesquioxane (POSS) materials makes them highly effective fillers in composite membranes for separation applications. However, realizing their full potential in the application often requires specific surface functionalization with various groups. However, this requirement remains challenging owing to the limitations of wet-chemistry approaches, which frequently result in the generation of hazardous chemical by-products. In this paper, a "green" stirring plasma strategy is presented for the functionalization of octa-methyl POSS sub-micron particles into designable oxygen-containing functional groups using a low-pressure oxygen plasma from combined continuous wave and pulsed (CW+P) modes. Plasma from oxygen gas with CW mode offers highly oxygen-reactive species to continuously etch and activate the surface of the POSS. The resulting pulsed plasma assists in grafting more reactive oxygen species onto the active methyl groups of the POSS to form specific oxygen-containing functional groups including hydroxyl and carboxyl. A precise control of nearly one hydroxyl or one carboxyl group at the corner of the cage structure of the POSS is demonstrated, without damaging the core. Therefore, the plasma process discussed in this work is suggested by the authors as controllable fundamental research for the surface functionalization of sub-micron particles, promoting a more environmentally friendly pathway for the preparation of designable fillers.
Collapse
Affiliation(s)
- Xiao Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; (X.C.); (P.Z.)
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
- Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, Geelong, VIC 3216, Australia;
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland;
| | - Kevin Magniez
- Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, Geelong, VIC 3216, Australia;
- Textor Technologies PTY LTD, 41 Tullamarine Park Road, Tullamarine, VIC 3043, Australia
| | - Pengchao Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; (X.C.); (P.Z.)
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
| | - Wojciech Kujawski
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland;
| | - Zhiqiang Chen
- Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, Geelong, VIC 3216, Australia;
| | - Ludovic F. Dumée
- Khalifa University, Department of Chemical Engineering, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on 2D Nanomaterials, Arzanah Precinct, Abu Dhabi, United Arab Emirates
| |
Collapse
|
2
|
Low-Temperature Atmospheric Pressure Plasma Processes for the Deposition of Nanocomposite Coatings. Processes (Basel) 2021. [DOI: 10.3390/pr9112069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Low-temperature atmospheric pressure (AP) plasma technologies have recently proven to offer a range of interesting opportunities for the preparation of a variety of nanocomposite (NC) coatings with different chemical compositions, structures, and morphologies. Since the late 2000s, numerous strategies have been implemented for the deposition of this intriguing class of coatings by using both direct and remote AP plasma sources. Interestingly, considerable progress has been made in the development of aerosol-assisted deposition processes in which the use of either precursor solutions or nanoparticle dispersions in aerosol form allows greatly widening the range of constituents that can be combined in the plasma-deposited NC films. This review summarizes the research published on this topic so far and, specifically, aims to present a concise survey of the developed plasma processes, with particular focus on their optimization as well as on the structural and functional properties of the NC coatings to which they provide access. Current challenges and opportunities are also briefly discussed to give an outlook on possible future research directions.
Collapse
|
4
|
Recent Advancements in the Use of Aerosol-Assisted Atmospheric Pressure Plasma Deposition. COATINGS 2020. [DOI: 10.3390/coatings10050440] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Atmospheric pressure plasma allows for the easy modification of materials’ surfaces for a wide range of technological applications. Coupling the aerosol injection of precursors with atmospheric pressure plasma largely extends the versatility of this kind of process; in fact solid and, in general, scarcely volatile precursors can be delivered to the plasma, extending the variety of chemical pathways to surface modification. This review provides an overview of the state of the art of aerosol-assisted atmospheric pressure plasma deposition. Advantages (many), and drawbacks (few) will be illustrated, as well as hints as to the correct coupling of the atomization source with the plasma to obtain specific coatings. In particular, the deposition of different organic, hybrid inorganic–organic and bioactive nanocomposite coatings will be discussed. Finally, it will be shown that, in particular cases, unique core–shell nanocapsules can be obtained.
Collapse
|
5
|
Mao H, Li SH, Zhang AS, Xu LH, Lu JJ, Zhao ZP. Novel MOF-capped halloysite nanotubes/PDMS mixed matrix membranes for enhanced n-butanol permselective pervaporation. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117543] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|