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Guo J, He J, Zhang S. In situ self-assembly of pulp microfibers and nanofibers into a transparent, high-performance and degradable film. Int J Biol Macromol 2024; 277:134294. [PMID: 39102925 DOI: 10.1016/j.ijbiomac.2024.134294] [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: 05/08/2024] [Revised: 07/11/2024] [Accepted: 07/28/2024] [Indexed: 08/07/2024]
Abstract
Despite the significant properties of fossil plastics, the current unsustainable methods employed in production, usage and disposal present a grave threat to both energy and environment. The development of degradable biomass materials as substitutes for fossil plastics can effectively address the energy-environment paradox at the source. Here, we prepared novel micro-nano multiscale composite films through assembling and crosslinking nanocellulose with coniferous wood pulp microfibers. The composite film combines the advantages of microfibers and nanocellulose, achieving a maximum transmittance of 91 %, foldability, excellent mechanical properties (tensile strength: 51.3 MPa, elongation at break: 4 %, young's modulus: 3.4 GPa), high thermal stability and complete degradation within 40 days. The composite film exhibits mechanochemical self-healing and retains properties even after fracture. Such exceptional performance fully meets the requirements for substituting petroleum plastics. By incorporating CaAlSiN3:Eu2+ into the composite film, it enables dual emission of red and blue light, thereby being able to promote plant growth and presenting potential as a novel sustainable alternative for agricultural films. By assembling microfiber and nanocellulose, such novel strategy is presented for the fabrication of high-quality biomass materials, thereby offering a promising avenue towards environment-friendly resource-sustainable new materials.
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Affiliation(s)
- Jianrong Guo
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Junhui He
- Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Shuyu Zhang
- School of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
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Kareem H, Maswadeh Y, Wu ZP, Leff AC, Cheng HW, Shan S, Wang S, Robinson R, Caracciolo D, Langrock A, Mackie DM, Tran DT, Petkov V, Zhong CJ. Lattice Strain and Surface Activity of Ternary Nanoalloys under the Propane Oxidation Condition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:11435-11447. [PMID: 35195398 DOI: 10.1021/acsami.1c24007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The ability to harness the catalytic oxidation of hydrocarbons is critical for both clean energy production and air pollutant elimination, which requires a detailed understanding of the dynamic role of the nanophase structure and surface reactivity under the reaction conditions. We report here findings of an in situ/operando study of such details of a ternary nanoalloy under the propane oxidation condition using high-energy synchrotron X-ray diffraction coupled to atomic pair distribution function (HE-XRD/PDF) analysis and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). The catalysts are derived by alloying Pt with different combinations of second (Pd) and third (Ni) transition metals, showing a strong dependence of the catalytic activity on the Ni content. The evolution of the phase structure of the nanoalloy is characterized by HE-XRD/PDF probing of the lattice strain, whereas the surface activity is monitored by DRIFTS detection of the surface intermediate formation during the oxidation of propane by oxygen. The results reveal the dominance of the surface intermediate species featuring a lower degree of oxygenation upon the first C-C bond cleavage on the lower-Ni-content nanoalloy and a higher degree of oxygenation upon the second C-C bond cleavage on the higher-Ni-content nanoalloy. The face-centered-cubic-type phase structures of the nanoalloys under the oxidation condition are shown to exhibit Ni-content-dependent changes of lattice strains, featuring the strongest strain with little variation for the higher-Ni-content nanoalloy, in contrast to the weaker strains with oscillatory variation for the lower-Ni-content nanoalloys. This process is also accompanied by oxygenation of the metal components in the nanoalloy, showing a higher degree of oxygenation for the higher-Ni-content nanoalloy. These subtle differences in phase structure and surface activity changes correlate with the Ni-composition-dependent catalytic activity of the nanoalloys, which sheds a fresh light on the correlation between the dynamic change of atomic strains and the surface reactivity and has significant implications for the design of oxidation catalysts with enhanced activities.
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Affiliation(s)
- Haval Kareem
- Sensors and Electron Devices Directorate, CCDC Army Research Laboratory, Adelphi, Maryland 20783, United States
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Yazan Maswadeh
- Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859, United States
| | - Zhi-Peng Wu
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Asher C Leff
- Sensors and Electron Devices Directorate, CCDC Army Research Laboratory, Adelphi, Maryland 20783, United States
| | - Han-Wen Cheng
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center, Fudan University, Shanghai 200438, China
| | - Shiyao Shan
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Shan Wang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Richard Robinson
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Dominic Caracciolo
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Alex Langrock
- Sensors and Electron Devices Directorate, CCDC Army Research Laboratory, Adelphi, Maryland 20783, United States
| | - David M Mackie
- Sensors and Electron Devices Directorate, CCDC Army Research Laboratory, Adelphi, Maryland 20783, United States
| | - Dat T Tran
- Sensors and Electron Devices Directorate, CCDC Army Research Laboratory, Adelphi, Maryland 20783, United States
| | - Valeri Petkov
- Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859, United States
| | - Chuan-Jian Zhong
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
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Wei Z, Liu H, Yu L, Xiao S, Hou Y, Chen X. Delocalized aromatic molecules with matched electron‐donating and electron‐withdrawing groups enhancing insulating performance of polyethylene blends. J Appl Polym Sci 2020. [DOI: 10.1002/app.49185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zuojun Wei
- Key Laboratory of Biomass Chemical Engineering of the Ministry of EducationCollege of Chemical and Biological Engineering, Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
| | - Haiyan Liu
- Key Laboratory of Biomass Chemical Engineering of the Ministry of EducationCollege of Chemical and Biological Engineering, Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
| | - Linwei Yu
- Zhejiang Provincial Key Laboratory of Electrical Machine SystemsCollege of Electrical Engineering, Zhejiang University Hangzhou China
| | - Shuwen Xiao
- Key Laboratory of Biomass Chemical Engineering of the Ministry of EducationCollege of Chemical and Biological Engineering, Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
| | - Yaxin Hou
- Key Laboratory of Biomass Chemical Engineering of the Ministry of EducationCollege of Chemical and Biological Engineering, Zhejiang University Hangzhou China
- Institute of Zhejiang University‐Quzhou Quzhou China
| | - Xiangrong Chen
- Zhejiang Provincial Key Laboratory of Electrical Machine SystemsCollege of Electrical Engineering, Zhejiang University Hangzhou China
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