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Xu J, Wang P, Chen S, Li L, Li D, Zhang Y, Wu Q, Fan J, Ma L. 3D-printed MoS 2/Ni electrodes with excellent electro-catalytic performance and long-term stability for dechlorination of florfenicol. J Environ Sci (China) 2024; 137:420-431. [PMID: 37980027 DOI: 10.1016/j.jes.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/03/2022] [Accepted: 11/03/2022] [Indexed: 11/20/2023]
Abstract
Here, we report the production of 3D-printed MoS2/Ni electrodes (3D-MoS2/Ni) with long-term stability and excellent performance by the selective laser melting (SLM) technique. As a cathode, the obtained 3D-MoS2/Ni could maintain a degradation rate above 94.0% for florfenicol (FLO) when repeatedly used 50 times in water. We also found that the removal rate of FLO by 3D-MoS2/Ni was about 12 times higher than that of 3D-printed pure Ni (3D-Ni), attributed to the improved accessibility of H*. In addition, the electrochemical characterization results showed that the electrochemically active surface area of the 3D-MoS2/Ni electrode is about 3-fold higher than that of the 3D-Ni electrode while the electrical resistance is 4 times lower. Based on tert-butanol suppression, electron paramagnetic resonance and triple quadrupole mass spectrometer experiments, a "dual path" mechanism and possible degradation pathway for the dechlorination of FLO by 3D-MoS2/Ni were proposed. Furthermore, we also investigated the impacts of the cathode potential and the initial pH of the solution on the degradation of FLO. Overall, this study reveals that the SLM 3D printing technique is a promising approach for the rapid fabrication of high-stability metal electrodes, which could have broad application in the control of water contaminants in the environmental field.
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Affiliation(s)
- Jianhui Xu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Pengxu Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Shenggui Chen
- School of Art and Design, Guangzhou Panyu Polytechnic, Guangzhou 511483, China; Dongguan Institute of Science and Technology Innovation, Dongguan University of Technology, Dongguan 523808, China; School of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Lei Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Dan Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Yunfei Zhang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; National Engineering Research Center for Urban Pollution Control, State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Qi Wu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Jinhong Fan
- National Engineering Research Center for Urban Pollution Control, State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Luming Ma
- National Engineering Research Center for Urban Pollution Control, State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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Supported Ni2P catalysts derived from nickel phyllosilicate with enhanced hydrodesulfurization performance. J Catal 2023. [DOI: 10.1016/j.jcat.2023.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Synergism of Extruded and Monolithic Co–Mo/γ-AL2O3–Sepiolite Catalytic Systems in the Hydrodesulphurization Reaction. Top Catal 2016. [DOI: 10.1007/s11244-015-0441-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wang H, Wang C, Xiao B, Zhao L, Zhang J, Zhu Y, Guo X. The hydroxyapatite nanotube as a promoter to optimize the HDS reaction of NiMo/TiO2 catalyst. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jaroszewska K, Masalska A, Marek D, Grzechowiak JR, Zemska A. Effect of support composition on the activity of Pt and PtMo catalysts in the conversion of n-hexadecane. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.07.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Varakin AN, Nikul’shin PA, Pimerzin AA, Sal’nikov VA, Pimerzin AA. Hydrogen spillover effect in the presence of CoS x /Al2O3 and bulk MoS2 in hydrodesulfurization, hydrodenitrogenation and hydrodeoxygenation. RUSS J APPL CHEM+ 2013. [DOI: 10.1134/s1070427213050182] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Valdevenito F, García R, Escalona N, Gil-Llambias F, Rasmussen S, López-Agudo A. Ni//Mo synergism via hydrogen spillover, in pyridine hydrodenitrogenation. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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