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Sun Q, Yu J, Zhao Y, Liu H, Li C, Tao J, Zhang J, Sheng J. Subnano-Fe (Co, Ni) clusters anchored on halloysite nanotubes: an efficient Fenton-like catalyst for the degradation of tetracycline. Environ Sci Pollut Res Int 2024; 31:28210-28224. [PMID: 38532214 DOI: 10.1007/s11356-024-32947-1] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024]
Abstract
Iron-based catalysts are environmentally friendly, and iron minerals are abundant in the earth's crust, with great potential advantages for PMS-based advanced oxidation process applications. However, homogeneous Fe2+/PMS systems suffer from side reactions and are challenging to reuse. Therefore, developing catalysts with improved stability and activity is a long-term goal for practical Fe-based catalyst applications. In this study, we prepared Fe-HNTs nanoreactors by encapsulating a nitrogen-doped carbon layer with one-dimensional halloysite nanotubes (HNTs) using the molten salt-assisted method. Subsequently, Fe (Co, Ni) nanoclusters were anchored onto the nitrogen-doped carbon layer at a relatively low temperature (550℃), resulting in stable and uniform distribution of metal nanoclusters on the surface of HNTs carriers in the form of Fe-Nx coordination. The results showed that the dissolution of the molten salt and leaching of post-treated metal oxides generated numerous mesopores within the Fe-HNTs nanoreactor, leading to a specific surface area more than 10 times that of HNTs. This enhanced mass transfer capability facilitates rapid pollutant removal while exposing more active sites. Remarkably, Fe-HNTs adsorbed up to 97% of tetracycline within 60 min. In the Fe-HNTs/PMS system, the predominant reactive oxygen species has been shown to be 1O2, and the added tetracycline was degraded by more than 98% within 5 min. The removal of tetracycline was maintained above 96% in the presence of interfering factors such as wide pH (3-11) and inorganic anions (5 mM Cl-, HCO3-, NO3-, and SO42-). The investigated mechanism suggests that efficient degradation and interference resistance of the Fe-HNTs/PMS system is attributed to the synergistic effect between the rapid adsorption of porous structure and the non-radical (1O2)-dominated degradation pathway.
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Affiliation(s)
- Qing Sun
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Jiale Yu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Youpu Zhao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Hanhu Liu
- School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Chunsheng Li
- Zhejiang Institute of Geosciences, Hangzhou, 310007, China
| | - Jiajun Tao
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Jian Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China
| | - Jiawei Sheng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, China.
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Miao X, Hong J, Huang S, Ding L, Wang F, Liu M, Zhang Q, Jin H. Vertically-Aligned Card-House Structure for Composite Solid Polymer Electrolyte with Fast and Stable Ion Transport Channels. Small 2024:e2310912. [PMID: 38438937 DOI: 10.1002/smll.202310912] [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: 11/26/2023] [Revised: 02/17/2024] [Indexed: 03/06/2024]
Abstract
All-solid-state lithium batteries (ASSLBs) are highly promising as next-generation energy storage devices owing to their potential for great safety and high energy density. This work demonstrates that composite solid polymer electrolyte with vertically-aligned card-house structure can simultaneously improve the high rate and long-term cycling performance of ASSLBs. The vertical alignment of laponite nanosheets creates fast and uniform Li+ ion transport channels at the nanosheets/polymer interphase, resulting in high ionic conductivity of 8.9 × 10-4 S cm-1 and Li+ transference number of 0.32 at 60 °C, as well as uniformly distributed solid electrolyte interphase. Such electrolyte is characterized by high mechanical strength, low flammability, excellent structural stability and stable ion transport channels. In addition, the ASSLB cell with the electrolyte and LiFePO4 cathode delivers a high discharge specific capacity of 124.8 mAh g-1 , which accounts for 85.6% of its initial capacity after 500 cycles at 1C. The reasonable design through structural control strategy by interconnecting the vertically-aligned nanosheets open a way to fabricate high performance composite solid polymer electrolytes.
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Affiliation(s)
- Xunzhi Miao
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Jianhe Hong
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Shuo Huang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Liye Ding
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Fang Wang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Min Liu
- HYLi Create Energy Technology Co., Ltd, Suzhou, 215000, China
| | - Quanquan Zhang
- HYLi Create Energy Technology Co., Ltd, Suzhou, 215000, China
| | - Hongyun Jin
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
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Qiu Y, Wang C, Zhao C, Yao G, Wang Z, Yang R. Preparation of Antimony-Doped Tin Oxide Fly Ash Antistatic Composite and Its Properties in Filling EVA. Materials (Basel) 2024; 17:1183. [PMID: 38473654 DOI: 10.3390/ma17051183] [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: 02/04/2024] [Revised: 02/24/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
As a common coal-based solid waste, fly ash is widely used in material filling. However, due to the high resistivity of fly ash itself, the antistatic performance of the filling material is poor. Therefore, antistatic composite powder was prepared by coating nano-sized antimony-doped tin oxide (ATO) on the surface of fly ash, and its preparation mechanism was discussed. The composite powders were characterized by SEM, EDS, XRD and FTIR. The results show that the interaction between SiO2 and SnO2 appears at the wave number of 727.12 cm-1, and the obvious SnO2 crystal phase appears on the surface of fly ash. The volume resistivity of calcined fly ash is 1.72 × 1012 Ω·cm, and the volume resistivity of ATO fly ash is reduced to 6 × 103 Ω·cm. By analyzing the limiting oxygen index, melt index, tensile strength, elongation at break, cross-section morphology and surface electrical resistivity of EVA, it was found that the addition of antistatic powder to EVA can improve its antistatic performance without deteriorating the mechanical properties of EVA.
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Affiliation(s)
- Ying Qiu
- College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Caili Wang
- College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Chunxue Zhao
- College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Guoxin Yao
- College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Zhixue Wang
- College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Runquan Yang
- College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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