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Li D, He X, Zhao L, Jia M, Li H, Zhang S, Zhang X, Chen J, Jin Q, Xu J. Ultrafast Electron Transfer Dynamics of Organic Polymer Nanoparticles with Graphene Oxide. Chemistry 2023; 29:e202300025. [PMID: 36691919 DOI: 10.1002/chem.202300025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 01/25/2023]
Abstract
We prepared organic polymer poly-3-hexylthiophene (p3ht) nanoparticles (NPs) and graphene oxide (GO)/reduced graphene oxide (RGO) composites p3ht NPs-GO/RGO by using the reprecipitation method. We demonstrated that GO/RGO could improve the ordering and planarity of p3ht chains as well as the formation of p3ht NPs, and confirmed the effects of GO/RGO on the fluorescence and carrier transport dynamics of p3ht NPs by using femtosecond fluorescence upconversion and transient absorption (TA) techniques. Ultrafast electron transfer (∼1 ps) between GO/RGO and p3ht NPs quenched the fluorescence of p3ht NPs, indicating excellent properties of p3ht NPs-GO/RGO as the charge transfer complexes. Efficient electron transfer may promote the applications of p3ht NPs-GO/RGO composites in organic polymer solar cells and photocatalysis. Moreover, RGO had stronger interfacial interactions and more matched conduction band energy levels with p3ht NPs than GO did, which implied that p3ht NPs-RGO might have greater application values than p3ht NPs-GO.
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Affiliation(s)
- Dong Li
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Xiaoxiao He
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Litao Zhao
- Key Laboratory of Spin Electron and Nanomaterials of, Anhui Higher Education Institutes, Suzhou University, 49 Bianhe Middle Road, Suzhou, 234000, P. R. China
| | - Menghui Jia
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Haoyang Li
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Sanjun Zhang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Xiaolei Zhang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Jinquan Chen
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Qingyuan Jin
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Jianhua Xu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
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Gao J, Yang H, Xiang Z, Zhang B, Ouyang X, Qi F, Zhao N. Study on Bone-like Microstructure Design of Carbon Nanofibers/Polyurethane Composites with Excellent Impact Resistance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3830. [PMID: 36364605 PMCID: PMC9654222 DOI: 10.3390/nano12213830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/26/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
It is a challenge to develop cost-effective strategy and design specific microstructures for fabricating polymer-based impact-resistance materials. Human shin bones require impact resistance and energy absorption mechanisms in the case of rapid movement. The shin bones are exciting biological materials that contain concentric circle structures called Haversian structures, which are made up of nanofibrils and collagen. The "soft and hard" structures are beneficial for dynamic impact resistance. Inspired by the excellent impact resistance of human shin bones, we prepared a sort of polyurethane elastomers (PUE) composites incorporated with rigid carbon nanofibers (CNFs) modified by elastic mussel adhesion proteins. CNFs and mussel adhesion proteins formed bone-like microstructures, where the rigid CNFs are served as the bone fibrils, and the flexible mussel adhesion proteins are regarded as collagen. The special structures, which are combined of hard and soft, have a positive dispersion and compatibility in PUE matrix, which can prevent cracks propagation by bridging effect or inducing the crack deflection. These PUE composites showed up to 112.26% higher impact absorbed energy and 198.43% greater dynamic impact strength when compared with the neat PUE. These findings have great implications for the design of composite parts for aerospace, army vehicles, and human protection.
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Affiliation(s)
- Jun Gao
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Hongyan Yang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Zehui Xiang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Biao Zhang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Xiaoping Ouyang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Fugang Qi
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Nie Zhao
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
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Qi F, Gao J, Wu B, Yang H, Qi F, Zhao N, Zhang B, Ouyang X. Study on Mechanical Properties and High-Speed Impact Resistance of Carbon Nanofibers/Polyurethane Composites Modified by Polydopamine. Polymers (Basel) 2022; 14:polym14194177. [PMID: 36236125 PMCID: PMC9571742 DOI: 10.3390/polym14194177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 09/28/2022] [Accepted: 10/01/2022] [Indexed: 11/16/2022] Open
Abstract
Polyurethane elastomers (PUE), with superior mechanical properties and excellent corrosion resistance, are applied widely to the protective capability of structures under low-speed impact. However, they are prone to instantaneous phase transition, irreversible deformation and rupture even arising from holes under high-speed impact. In this paper, mussel adhesion proteins were applied to modify carbon nanofibers (CNFs) in a non-covalent way, and creatively mixed with PUE. This can improve the dispersity and interfacial compatibility of nanofillers in the PUE matrix. In addition, the homogeneous dispersion of modified nanofillers can serve as "reinforcing steel bars". The nanofillers and PUE matrix can form "mud and brick" structures, which show superb mechanical properties and impact resistance. Specifically, the reinforcement of 1.0 wt.% modified fillers in PUE is 103.51%, 95.12% and 119.85% higher than the neat PUE in compression modulus, storage modulus and energy absorption capability, respectively. The results have great implications in the design of composite parts for aerospace and army vehicles under extreme circumstances.
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Affiliation(s)
- Feng Qi
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Qingdao Green World New Material Technology, Qingdao 266100, China
| | - Jun Gao
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
- Correspondence: (J.G.); (F.Q.); (N.Z.)
| | - Bolun Wu
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Hongyan Yang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Fugang Qi
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
- Correspondence: (J.G.); (F.Q.); (N.Z.)
| | - Nie Zhao
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
- Correspondence: (J.G.); (F.Q.); (N.Z.)
| | - Biao Zhang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
| | - Xiaoping Ouyang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
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