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Liang W, Zhang T, Zhu Y, Dong J, Nie Y, Shi W, Ai S. A novel 3D nitrogen-doped porous carbon supported Fe-Cu bimetallic nanoparticles composite derived from lignin: an efficient peroxymonosulfate activator for naphthalene degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:44431-44444. [PMID: 38954339 DOI: 10.1007/s11356-024-34147-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
A novel 3D nitrogen-doped porous carbon supported Fe-Cu bimetallic nanoparticles composite (Fe-Cu-N-PC) was prepared via direct pyrolysis by employing black liquor lignin as a main precursor, and it was utilized as a novel catalyst for PMS activation in degrading naphthalene. Under the optimum experimental conditions, the naphthalene degradation rate was up to 93.2% within 60 min in the Fe-Cu-N-PC/PMS system. The porous carbon framework of Fe-Cu-N-PC could facilitate the quick molecule diffusion of reactants towards the inner bimetallic nanoparticles and enriched naphthalene molecules from the solution by a specific adsorption, which increased the odds of contact between naphthalene and reactive oxygen species and improved the reaction efficiency. The quenching reaction proved that the non-free radical pathway dominated by 1O2 was the main way in naphthalene degradation, while the free radical pathway involving SO4·- and ·OH only played a secondary role. Moreover, owing to its high magnetization performance, Fe-Cu-N-PC could be magnetically recovered and maintained excellent naphthalene degradation rate after four degradation cycles. This research will offer a theoretical basis for the construction of facile, efficient, and green technologies to remediate persistent organic pollutants in the environment.
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Affiliation(s)
- Wenxu Liang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Ting Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Yifan Zhu
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Jing Dong
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Yongxin Nie
- College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, PR China
| | - Weijie Shi
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China.
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, Taian, 271018, Shandong, PR China
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Chen H, Liu Y, Gao R, Dong T, Hou Z, Jing L, Duan E, Deng J, Dai H. N-doped carbon-modified palladium catalysts with superior water resistant performance for the oxidative removal of toxic aromatics. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129358. [PMID: 35716566 DOI: 10.1016/j.jhazmat.2022.129358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/21/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The supported palladium catalysts perform well in the oxidative removal of hazardous aromatic hydrocarbons. However, water vapor can seriously deactivate the catalysts especially in the low-temperature regime. Hence, improving moisture resistance of the Pd-based catalysts is full of challenge in the removal of aromatics. Herein, we report a new type of Pd@NC/BN catalysts featured with nitrogen-doped carbon layers modified Pd supported on hexagonal boron nitride (h-BN), and the relationship between structure and water resistance of the catalysts. The results show that in the presence of 10 vol% H2O in the feedstock, the Pd@NC/BN catalyst could effectively oxidize o-xylene (with an almost 87% removal efficiency), whereas o-xylene conversion declined from 69% to 20% over the conventional Pd/Al2O3 at a reaction temperature of 210 °C and a space velocity of 40,000 mL/(g h). The adsorption of H2O was significantly inhibited on the nitrogen-doped carbon layers due to the hydrophobic nature. Meanwhile, the oxygen species active for o-xylene oxidation were not only from the adsorbed gas-phase oxygen but also from the new active oxygen (*OOH and *OH) species that were generated via the interaction of O2 and H2O in the presence of water in the feedstock. It is concluded that the reactive oxygen species that accelerated the activation and cleavage of C-H bonds significantly facilitated the conversion of key intermediate species (from benzaldehyde to benzoic acid), thus playing a decisive role in o-xylene oxidation. The present work provides a direction for developing the superior water resistance catalysts with hydrophobic nature and good water activation ability in the oxidative removal of volatile organic compounds.
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Affiliation(s)
- Hualian Chen
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yuxi Liu
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
| | - Ruyi Gao
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Tiantian Dong
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Zhiquan Hou
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Lin Jing
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Erhong Duan
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China
| | - Jiguang Deng
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
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Dong J, Wang W, Wang X, Zhou Q, Miao R, Du M, Tan B, Wang Y, Zhang T, Li Y, Cao F. Effects of Nano Aluminum Powder on the Mechanical Sensitivity of RDX-Based Explosives. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:nano11092182. [PMID: 34578498 PMCID: PMC8470581 DOI: 10.3390/nano11092182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
As nano-aluminum powder (NAP) can improve the detonation performance of aluminum-containing explosives, more and more explosives with NAP as the metal ingredient have been studied. It is believed that the mechanical sensitivity of explosives can be significantly enhanced by the added nano-sized aluminum powder. However, the mechanism for the enhancement has not been clarified. In order to illuminate the effects of NAP on the mechanical sensitivity of explosives, two RDX-based aluminum-containing explosives with the same weight ratio and preparation process were investigated despite the aluminum powders with different nano-size and micron-size. The morphology and surface atomic ratio of the two explosives were examined by scanning electron microscopy with energy dispersive spectroscopy tests. The contact angle and other microstructures properties of the explosives were calculated by Material Studio software. Results revealed that the impact and friction activity was determined by the aluminum particle sizes and explosive components. This paper clarified the mechanism for the increase in explosives sensitivity by the addition of NAP, which provide reference for the scientific and technical design of novel explosives.
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Affiliation(s)
- Jun Dong
- Department of Engineering, Naval University of Engineering, Wuhan 430033, China; (J.D.); (R.M.); (M.D.); (B.T.)
- Xi’an Modern Chemistry Research Institute, Xi’an 710065, China;
| | - Weili Wang
- Department of Engineering, Naval University of Engineering, Wuhan 430033, China; (J.D.); (R.M.); (M.D.); (B.T.)
| | - Xiaofeng Wang
- Xi’an Modern Chemistry Research Institute, Xi’an 710065, China;
| | - Qiang Zhou
- China Academy of Ordnance Science, Beijing 100089, China; (Q.Z.); (Y.W.); (T.Z.)
| | - Run Miao
- Department of Engineering, Naval University of Engineering, Wuhan 430033, China; (J.D.); (R.M.); (M.D.); (B.T.)
| | - Maohua Du
- Department of Engineering, Naval University of Engineering, Wuhan 430033, China; (J.D.); (R.M.); (M.D.); (B.T.)
| | - Bo Tan
- Department of Engineering, Naval University of Engineering, Wuhan 430033, China; (J.D.); (R.M.); (M.D.); (B.T.)
| | - Yuanjing Wang
- China Academy of Ordnance Science, Beijing 100089, China; (Q.Z.); (Y.W.); (T.Z.)
| | - Tengyue Zhang
- China Academy of Ordnance Science, Beijing 100089, China; (Q.Z.); (Y.W.); (T.Z.)
| | - Yafei Li
- Navy Research Institute, Beijing 100072, China;
| | - Fangjie Cao
- Xi’an Modern Chemistry Research Institute, Xi’an 710065, China;
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Wu X, Yong C, An X, Kong Q, Yao W, Wang Y, Wang Q, Lei Y, Li W, Xiang Z, Qiao L, Liu X. Ni xCu 1−x/CuO/Ni(OH) 2 as highly active and stable electrocatalysts for oxygen evolution reaction. NEW J CHEM 2021. [DOI: 10.1039/d1nj03818d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ni–Cu alloy-based nanomaterials are representative cost-effective materials that have been widely used as highly active and stable electrocatalysts for electrochemical energy applications, such as the water oxidation reaction, the methanol/ethanol reaction and many other small molecule oxidation reactions.
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Affiliation(s)
- Xiaoqiang Wu
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Chaoyou Yong
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Xuguang An
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Qingquan Kong
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Weitang Yao
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Yong Wang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Qingyuan Wang
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yimin Lei
- School of Advanced Materials and Nanotechnology, Xidian University, 710726 Xi’An, China
| | - Weiyin Li
- School of Electrical & Information Engineering, North Minzu University, Yinchuan 750021, China
| | | | - Liang Qiao
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiaonan Liu
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
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