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Wang F, Wang S, Liu Y, Ouyang S, Sun D, Yang X, Li J, Wu Z, Qian J, Zhao Z, Wang L, Jia C, Ma S. Cellulose Nanofiber-Based Triboelectric Nanogenerators for Efficient Air Filtration in Harsh Environments. Nano Lett 2024; 24:2861-2869. [PMID: 38408922 DOI: 10.1021/acs.nanolett.3c05089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Advanced portable healthcare devices with high efficiencies, small pressure drops, and high-temperature resistance are urgently desired in harsh environments with high temperatures, high humidities, and high levels of atmospheric pollution. Triboelectric nanogenerators (TENGs), which serve as energy converters in a revolutionary self-powered sensor device, present a sustainable solution for meeting these requirements. In this work, we developed a porous negative triboelectric material by synthesizing ZIF-8 on the surface of a cellulose/graphene oxide aerogel, grafting it with trimethoxy(1H,1H,2H,2H-heptadecafluorodecyl)silane, and adding a negative corona treatment, and it was combined with a positive triboelectric material to create a cellulose nanofiber-based TENG self-powered filter. The devices achieved a balance between a small pressure drop (53 Pa) and high filtration efficiency (98.97%, 99.65%, and 99.93% for PM0.3, PM0.5, and PM1, respectively), demonstrating robust filtration properties at high temperatures and high humidities. Our work provides a new approach for developing self-powered wearable healthcare devices with excellent air filtration properties.
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Affiliation(s)
- Feijie Wang
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Suyang Wang
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Yichi Liu
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Shiqiang Ouyang
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Danni Sun
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Xiaoye Yang
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Jinmin Li
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhen Wu
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Jing Qian
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhicheng Zhao
- College of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Liqiang Wang
- Jiangsu Provincial Key Laboratory of Food Advanced Manufacturing Equipment Technology, School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
| | - Chao Jia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Shufeng Ma
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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Lin Y, Tian Q, Lin P, Tan X, Qin H, Chen J. Effect of Nanoparticles on Rheological Properties of Water-Based Drilling Fluid. Nanomaterials 2023; 13:2092. [PMID: 37513103 PMCID: PMC10385640 DOI: 10.3390/nano13142092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
Nano-water-based drilling fluids (NWBDFs) are prepared using nano-copper oxide (CuO) and multiwalled carbon nanotubes (MWCNTs) as modification materials. The effects of the temperature and concentration of the nanoparticles (NPs) on the rheological properties are studied using a rotational rheometer and viscometer. Also, the influence of two NPs on the filtration properties is studied using a low-pressure and low-temperature filtration apparatus, as well as a scanning electron microscope (SEM). It is found that MWCNTs with a concentration of 0.05 w/v% have the most obvious influence on the NWBDFs, which improve the stability of the gel structure against temperature and also decrease the filtration rate. Finally, a theoretical model predicating the yield point (YP) and the plastic viscosity (PV) as a function of the temperature considering the influence of the NPs is developed based on DLVO theory.
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Affiliation(s)
- Yuan Lin
- Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China
- Hainan Institute, Zhejiang University, Sanya 572025, China
| | - Qizhong Tian
- Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China
- Petroleum Engineering Technology Research Institute, Sinopec Shengli Oilfield Company, Dongying 257001, China
| | - Peiwen Lin
- Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Xinghui Tan
- Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Huaitao Qin
- Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Jiawang Chen
- Institute of Ocean Engineering and Technology, Ocean College, Zhejiang University, Zhoushan 316021, China
- Hainan Institute, Zhejiang University, Sanya 572025, China
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Masuda T, Asoh H, Haraguchi S, Ono S. Fabrication and Characterization of Single Phase α-Alumina Membranes with Tunable Pore Diameters. Materials (Basel) 2015; 8:1350-68. [PMID: 28788005 DOI: 10.3390/ma8031350] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 02/23/2015] [Accepted: 03/04/2015] [Indexed: 11/17/2022]
Abstract
Nanoporous and single phase α-alumina membranes with pore diameters tunable over a wide range of approximately 60-350 nm were successfully fabricated by optimizing the conditions for anodizing, subsequent detachment, and heat treatment. The pore diameter increased and the cell diameter shrunk upon crystallization to α-alumina by approximately 20% and 3%, respectively, in accordance with the 23% volume shrinkage resulting from the change in density associated with the transformation from the amorphous state to α-alumina. Nevertheless, flat α-alumina membranes, each with a diameter of 25 mm and a thickness of 50 μm, were obtained without thermal deformation. The α-alumina membranes exhibited high chemical resistance in various concentrated acidic and alkaline solutions as well as when exposed to high temperature steam under pressure. The Young's modulus and hardness of the single phase α-alumina membranes formed by heat treatment at 1250 °C were notably decreased compared to the corresponding amorphous membranes, presumably because of the nodular crystallite structure of the cell walls and the substantial increase in porosity. Furthermore, when used for filtration, the α-alumina membrane exhibited a level of flux higher than that of the commercial ceramic membrane.
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