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Wei J, Ye G, Lin H, Li Z, Zhou J, Li YY. Enhanced electrochemical nitrate reduction on copper nitride with moderate intermediates adsorption. J Colloid Interface Sci 2024; 670:798-807. [PMID: 38789354 DOI: 10.1016/j.jcis.2024.05.084] [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: 03/07/2024] [Revised: 04/23/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
Nitrate in surface and underground water caused systematic risk to the ecological environment. The electrochemically reduction of nitrate into ammonia (NO3RR), offering a sustainable route for nitrate containing wastewater treatment and ammonia fertilizer conversion. Exploration of catalyst with improved catalytic activity with lower energy barriers is still challenging. Here, we report a copper nitride (Cu3N) catalyst with moderate *NOx and *H2O intermediates adsorptions showed enhanced NO3RR performance. Density functional theory calculations reveals that the unique electronic structure of Cu3N provides efficient active sites for NO3RR, thus enabled balanced adsorption of *NO3 and *H2O (ΔE descriptor), sufficient active hydrogen, and moderate intermediate (*NO3 → HNO3, *NH2→*NH3) adsorption energy. Notably, the in-situ analysis technology revealed potential-driven reconstruction and rehabilitation of Cu3N, forming possible nitrogen vacancy, thus implied for better mechanism understanding. The NO3RR activity of Cu3N surpasses that of most recent catalysts and demonstrates superior stability and implies the application for NH4+ fertilizer recovery, which maintaining an NH3 Faradaic efficiency of 93.1 % and high yield rate of 2.9 mg cm2h-1 at -0.6 V versus RHE. These findings broaden the application scenarios of Cu3N catalyst for ammonia synthesis and provide strategy on improving NO3RR performance.
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Affiliation(s)
- Jinshan Wei
- Shenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advance Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Gan Ye
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China
| | - Hexing Lin
- Shenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advance Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Zhiming Li
- Shenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advance Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Ji Zhou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, PR China
| | - Ya-Yun Li
- Shenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advance Technology of Ceramics, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China.
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2
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Fan J, Arrazolo LK, Du J, Xu H, Fang S, Liu Y, Wu Z, Kim JH, Wu X. Effects of Ionic Interferents on Electrocatalytic Nitrate Reduction: Mechanistic Insight. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 38954631 DOI: 10.1021/acs.est.4c03949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Nitrate, a prevalent water pollutant, poses substantial public health concerns and environmental risks. Electrochemical reduction of nitrate (eNO3RR) has emerged as an effective alternative to conventional biological treatments. While extensive lab work has focused on designing efficient electrocatalysts, implementation of eNO3RR in practical wastewater settings requires careful consideration of the effects of various constituents in real wastewater. In this critical review, we examine the interference of ionic species commonly encountered in electrocatalytic systems and universally present in wastewater, such as halogen ions, alkali metal cations, and other divalent/trivalent ions (Ca2+, Mg2+, HCO3-/CO32-, SO42-, and PO43-). Notably, we categorize and discuss the interfering mechanisms into four groups: (1) loss of active catalytic sites caused by competitive adsorption and precipitation, (2) electrostatic interactions in the electric double layer (EDL), including ion pairs and the shielding effect, (3) effects on the selectivity of N intermediates and final products (N2 or NH3), and (4) complications by the hydrogen evolution reaction (HER) and localized pH on the cathode surface. Finally, we summarize the competition among different mechanisms and propose future directions for a deeper mechanistic understanding of ionic impacts on eNO3RR.
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Affiliation(s)
- Jinling Fan
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Leslie K Arrazolo
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Jiaxin Du
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Huimin Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Siyu Fang
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Yue Liu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Zhongbiao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Xuanhao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
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3
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Wei J, Li Y, Lin H, Lu X, Zhou C, Li YY. Copper-based electro-catalytic nitrate reduction to ammonia from water: Mechanism, preparation, and research directions. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 20:100383. [PMID: 38304117 PMCID: PMC10830547 DOI: 10.1016/j.ese.2023.100383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 02/03/2024]
Abstract
Global water bodies are increasingly imperiled by nitrate pollution, primarily originating from industrial waste, agricultural runoffs, and urban sewage. This escalating environmental crisis challenges traditional water treatment paradigms and necessitates innovative solutions. Electro-catalysis, especially utilizing copper-based catalysts, known for their efficiency, cost-effectiveness, and eco-friendliness, offer a promising avenue for the electro-catalytic reduction of nitrate to ammonia. In this review, we systematically consolidate current research on diverse copper-based catalysts, including pure Cu, Cu alloys, oxides, single-atom entities, and composites. Furthermore, we assess their catalytic performance, operational mechanisms, and future research directions to find effective, long-term solutions to water purification and ammonia synthesis. Electro-catalysis technology shows the potential in mitigating nitrate pollution and has strategic importance in sustainable environmental management. As to the application, challenges regarding complexity of the real water, the scale-up of the commerical catalysts, and the efficient collection of produced NH3 are still exist. Following reseraches of catalyst specially on long term stability and in situ mechanisms are proposed.
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Affiliation(s)
| | | | | | | | - Chucheng Zhou
- Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, PR China
| | - Ya-yun Li
- Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, PR China
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4
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Wang X, Ma X, Wu Y, Li C, Chen R. Enhanced ammonia oxidation by a photoelectrocatalysis‑chlorine system: The role of ClO• and free chlorine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172300. [PMID: 38593873 DOI: 10.1016/j.scitotenv.2024.172300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/25/2024] [Accepted: 04/05/2024] [Indexed: 04/11/2024]
Abstract
The decomposition of ammonia-N to environmental-friendly N2 remains a fundamental problem for water treatment. We proposed a way to selectively and efficiently oxidize ammonia to N2 through an integrated photoeletrocatalysis‑chlorine reactions (PECCl) system based on a bifunctional TiO2 nanotube photoanode. The ·OH and HClO can be simultaneously generated on the TiO2 nanotube photoanode in this system, which can in situ form ClO· for efficient ammonia removal. Compared with electrochemical‑chlorine (EC-Cl), photocatalysis‑chlorine (PC-Cl) and photoelectrocatalysis (PEC) systems, the PEC-Cl system exhibited much higher electrocatalytic activity due to the synergetic effect of photoelectrocatalyst and electrocatalyst in bifunctional TiO2 nanotube electrode. The removal efficiency of ammonia-N and total-N reached 100.0 % and 93.3 % at 0.3 V (vs Ag/AgCl) in the PEC-Cl system. Moreover, the system was efficient under various pH conditions. The reactions between ClO-/ClO· and the N-containing intermediates contributed to the high performance of the system, which expanded the reactions from the electrode surface to the electrolyte. Furthermore, radical scavenging and free chlorine determination experiments confirmed that ClO· and free chlorine were the main active species that enabled the ammonia oxidation. This study presents new understanding on the role of active species for ammonia removal in wastewater.
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Affiliation(s)
- Xiaodan Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China; International Science & Technology Cooperation Center for Urban Alternative Water Resources development, Xi'an 710055, PR China
| | - Xi Ma
- School of Environmental Science and Engineering and Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Yaoyao Wu
- Key Laboratory of Environmental Pollution Control in Mining and Metallurgy of Jiangxi Province, School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, PR China
| | - Chuanhao Li
- School of Environmental Science and Engineering and Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Rong Chen
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China; International Science & Technology Cooperation Center for Urban Alternative Water Resources development, Xi'an 710055, PR China.
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5
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Wen W, Fang S, Zhou Y, Zhao Y, Li P, Yu XY. Modulating the Electrolyte Microenvironment in Electrical Double Layer for Boosting Electrocatalytic Nitrate Reduction to Ammonia. Angew Chem Int Ed Engl 2024:e202408382. [PMID: 38806407 DOI: 10.1002/anie.202408382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 05/30/2024]
Abstract
Electrochemical nitrate reduction reaction (NO3RR) is a promising approach to achieve remediation of nitrate-polluted wastewater and sustainable production of ammonia. However, it is still restricted by the low activity, selectivity and Faraday efficiency for ammonia synthesis. Herein, we propose an effective strategy to modulate the electrolyte microenvironment in electrical double layer (EDL) by mediating alkali metal cations in the electrolyte to enhance the NO3RR performance. Taking bulk Cu as a model catalyst, the experimental study reveals that the NO3 --to-NH3 performance in different electrolytes follows the trend Li+
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Affiliation(s)
- Weidong Wen
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Shidong Fang
- Institute of Energy, Hefei Comprehensive National Science Centre (Anhui Energy Laboratory), Hefei, 230051, P. R. China
- Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei, 230031, P. R. China
| | - Yitong Zhou
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Ying Zhao
- School of Pharmacy, Anhui Xinhua University, Hefei, 230088, P. R. China
| | - Peng Li
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Xin-Yao Yu
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
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6
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Zhou B, Yu L, Zhang W, Liu X, Zhang H, Cheng J, Chen Z, Zhang H, Li M, Shi Y, Jia F, Huang Y, Zhang L, Ai Z. Cu 1-Fe Dual Sites for Superior Neutral Ammonia Electrosynthesis from Nitrate. Angew Chem Int Ed Engl 2024:e202406046. [PMID: 38771293 DOI: 10.1002/anie.202406046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/05/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
The electrochemical nitrate reduction reaction (NO3RR) is able to convert nitrate (NO3 -) into reusable ammonia (NH3), offering a green treatment and resource utilization strategy of nitrate wastewater and ammonia synthesis. The conversion of NO3 - to NH3 undergoes water dissociation to generate active hydrogen atoms and nitrogen-containing intermediates hydrogenation tandemly. The two relay processes compete for the same active sites, especially under pH-neutral condition, resulting in the suboptimal efficiency and selectivity in the electrosynthesis of NH3 from NO3 -. Herein, we constructed a Cu1-Fe dual-site catalyst by anchoring Cu single atoms on amorphous iron oxide shell of nanoscale zero-valent iron (nZVI) for the electrochemical NO3RR, achieving an impressive NO3 - removal efficiency of 94.8 % and NH3 selectivity of 99.2 % under neutral pH and nitrate concentration of 50 mg L-1 NO3 --N conditions, greatly surpassing the performance of nZVI counterpart. This superior performance can be attributed to the synergistic effect of enhanced NO3 - adsorption on Fe sites and strengthened water activation on single-atom Cu sites, decreasing the energy barrier for the rate-determining step of *NO-to-*NOH. This work develops a novel strategy of fabricating dual-site catalysts to enhance the electrosynthesis of NH3 from NO3 -, and presents an environmentally sustainable approach for neutral nitrate wastewater treatment.
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Affiliation(s)
- Biao Zhou
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Linghao Yu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Weixing Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Xupeng Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Hao Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Jundi Cheng
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Ziyue Chen
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Hao Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Meiqi Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yanbiao Shi
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Falong Jia
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Yi Huang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Lizhi Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Zhihui Ai
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education, Institute of Applied & Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
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7
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Wang Y, Yan X, Zhang Y, Qin X, Yu X, Jiang L, Li B. Efficient Removal of Nickel from Wastewater Using Copper Sulfate-Ammonia Complex Modified Activated Carbon: Adsorption Performance and Mechanism. Molecules 2024; 29:2405. [PMID: 38792266 PMCID: PMC11124251 DOI: 10.3390/molecules29102405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/04/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
The necessity to eliminate nickel (Ni) from wastewater stems from its environmental and health hazards. To enhance the Ni adsorption capacity, this research applied a copper sulfate-ammonia complex (tetraamminecopper (II) sulfate monohydrate, [Cu(NH3)4]SO4·H2O) as a modifying agent for a Phragmites australis-based activated carbon preparation. The physiochemical properties of powdered activated carbon (PAC) and a modified form ([Cu(NH3)4]-PAC) were examined by measuring their surface areas, analyzing their elemental composition, and using Boehm's titration method. Batch experiments were conducted to investigate the impact of various factors, such as Ni(II) concentration, contact time, pH, and ionic strength, on its substance adsorption capabilities. Additionally, the adsorption mechanisms of Ni(II) onto activated carbon were elucidated via Fourier-transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The findings indicated that modified activated carbon ([Cu(NH3)4]-PAC) exhibited a lower surface area and total volume than the original activated carbon (PAC). The modification of PAC enhanced its surface's relative oxygen and nitrogen content, indicating the incorporation of functional groups containing these elements. Furthermore, the modified activated carbon, [Cu(NH3)4]-PAC, exhibited superior adsorption capacity relative to unmodified PAC. Both adsorbents' adsorption behaviors conformed to the Langmuir model and the pseudo-second-order kinetics model. The Ni(II) removal efficiency of PAC and [Cu(NH3)4]-PAC diminished progressively with rising ionic strength. Modified activated carbon [Cu(NH3)4]-PAC demonstrated notable pH buffering and adaptability. The adsorption mechanism for Ni(II) on activated carbon involves surface complexation, cation exchange, and electrostatic interaction. This research presents a cost-efficient preparation technique for preparing activated carbon with enhanced Ni(II) removal capabilities from wastewater and elucidates its underlying adsorption mechanisms.
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Affiliation(s)
- Yifei Wang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
- Department of Civil and Environmental Engineering E4130 Engineering Gateway Building, University of California, Irvine, CA 92697-2175, USA
| | - Xiaoxiao Yan
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Yidi Zhang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Xiaoxin Qin
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Xubiao Yu
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
| | - Li Jiang
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
- College of Environmental and Resource Science, Zhejiang University, 866 Yuhuangtang Rd, Hangzhou 310058, China
| | - Bing Li
- School of Civil & Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China; (Y.W.); (X.Y.); (Y.Z.); (X.Q.); (X.Y.)
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8
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Zhou S, Dai Y, Song Q, Lu L, Yu X. Efficient Electrochemical Nitrate Removal by Ordered Ultrasmall Intermetallic AuCu 3 via Enhancing Nitrate Adsorption. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38605516 DOI: 10.1021/acsami.4c01739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Developing a high-performance electrocatalyst for synthesizing ammonia from nitrate represents a promising solution for addressing wastewater pollution and achieving sustainable ammonia production. However, it remains a formidable challenge. Herein, an intermetallic AuCu3 electrocatalyst with high-density active sites is designed and prepared for an efficient nitrate electroreduction to generate ammonia. Remarkably, the Faraday efficiency and yield rate of ammonia at -0.9 V are 97.6% and 75.9 mg h-1 cm-2, respectively. More importantly, after 10 cycles of testing, the removal rate of nitrate can still reach 95.2%. Electrochemical in situ Fourier transform infrared analysis indicates that AuCu3 IM can promote the adsorption of nitrate and enhance ammonia production from nitrate. *NH3, *NO, and *NO2 have been proven to be active intermediates. Theoretical and experimental studies show that the Au site can provide a large amount of *H for nitrate reduction, and the Cu site is conducive to the reduction of nitrate to produce nitrogen-containing products. Meanwhile, AuCu3 intermetallic compounds (AuCu3 IM) can inhibit the dimerization of *H. The power density and ammonia yield of the assembled Zn-nitrate battery reached 2.17 mW cm-2 and 71.2 mg h-1 cm-2, respectively.
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Affiliation(s)
- Shuanglong Zhou
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- School of Computer Science and Technology, Shandong University of Technology, Zibo 255000, China
| | - Yu Dai
- School of Foreign Languages, Qingdao City University, Qingdao 266042, China
| | - Qiang Song
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Lina Lu
- School of Business, Shandong University of Technology, Zibo 255000, China
| | - Xiao Yu
- School of Computer Science and Technology, Shandong University of Technology, Zibo 255000, China
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9
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Liu D, Wang W, Liu D, Gao Z, Wang W. Bubble Turbulent Gas-Permeable Membrane for Ammonia Recovery from Swine Wastewater: Mass Transfer Enhancement and Antifouling Mechanisms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:6019-6029. [PMID: 38509821 DOI: 10.1021/acs.est.3c07903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Recovering ammonium from swine wastewater employing a gas-permeable membrane (GM) has potential but suffers from the limitations of unattractive mass transfer and poor-tolerance antifouling properties. Turbulence is an effective approach to enhancing the release of volatile ammonia from wastewater while relying on interfacial disturbance to interfere with contaminant adhesion. Herein, we design an innovative gas-permeable membrane coupled with bubble turbulence (BT-GM) that enhances mass transfer while mitigating membrane fouling. Bubbles act as turbulence carriers to accelerate the release and migration of ammonia from the liquid phase, increasing the ammonia concentration gradient at the membrane-liquid interface. In comparison, the ammonium mass transfer rate of the BT-GM process applied to real swine wastewater is 38% higher than that of conventional GM (12 h). Through a computational fluid dynamics simulation, the turbulence kinetic energy of BT-GM system is 3 orders of magnitude higher than that of GM, and the effective mass transfer area is nearly 3 times that of GM. Seven batches of tests confirmed that the BT-GM system exhibits remarkable antifouling ability, broadens its adaptability to complex water quality, and practically promotes the development of sustainable resource recycling.
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Affiliation(s)
- Dongqing Liu
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Wenhui Wang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Dongmei Liu
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Zibo Gao
- Key Laboratory of Bionic Engineering, (Ministry of Education of China), Jilin University, Changchun 130022, People's Republic of China
- College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, People's Republic of China
| | - Wei Wang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
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10
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Yan M, Wei R, Zhang R, Zhang X, Sun S, Wei X, Wang X, Yin S, Wang Y. Distinctive p-d Orbital Hybridization in CuSb Porous Nanonetworks for Enhanced Nitrite Electroreduction to Ammonia. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310409. [PMID: 38477694 DOI: 10.1002/smll.202310409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Electrochemical nitrite reduction reaction (NO 2 - RR ${\mathrm{NO}}_{\mathrm{2}}^{\mathrm{ - }}{\mathrm{RR}}$ ), as a green and sustainable ammonia synthesis technology, has broad application prospects and environmental friendliness. Herein, an unconventional p-d orbital hybridization strategy is reported to realize the fabrication of defect-rich CuSb porous nanonetwork (CuSb PNs) electrocatalyst forNO 2 - RR ${\mathrm{NO}}_{\mathrm{2}}^ - {\mathrm{RR}}$ . The crystalline/amorphous heterophase structure is cleverly introduced into the porous nanonetworks, and this defect-rich structure exposes more atoms and activated boundaries. CuSb PNs exhibit a large NH3 yield (r N H 3 ${{r}_{{\mathrm{N}}{{{\mathrm{H}}}_{\mathrm{3}}}}}$ ) of 946.1 µg h-1m cat - 1 ${\mathrm{m}}_{{\mathrm{cat}}}^{ - {\mathrm{1}}}$ and a high faradaic efficiency (FE) of 90.7%. Experimental and theoretical studies indicate that the excellent performance of CuSb PNs results from the defect-rich porous nanonetworks structure and the p-d hybridization of Cu and Sb elements. This work describes a powerful pathway for the fabrication of p-d orbital hybrid defect-rich porous nanonetworks catalysts, and provides hope for solving the problem of nitrogen oxide pollution in the field of environment and energy.
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Affiliation(s)
- Min Yan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Ranran Wei
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Ruifan Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Xiaoying Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Shiqin Sun
- Department of Biological and Chemical Engineering, Shandong Vocational College of Science and Technology, Weifang, 261021, P. R. China
| | - Xuewen Wei
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Xianlong Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Shuli Yin
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Yinglong Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
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