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Synthesis of stable flowerlike MgAl-LDH@MIL-88A and its adsorption performance for fluoride. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221106680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
MgAl-LDH@MIL-88A as an effective adsorbent was successfully prepared by a simple stirring method in water bath through loading MIL-88A onto the surface of flowerlike MgAl-LDH, which was synthesized via solvothermal method. Interestingly, the results of characterizations showed that the MIL-88A could still grow, but extrude the brucite-like layers of MgAl-LDH. The influences of initial solution pH, contact time, temperature, and co-existing ions on the adsorption performance of MgAl-LDH@MIL-88A were studied systematically by batch static adsorption experiments. It was found that MgAl-LDH@MIL-88A represented the highest adsorption loading of fluoride (14.00 mg g−1) at initial pH 7.0 in 420 min. The uptake process was described appropriately by the pseudo-second-order, the Temkin and the Freundlich isotherm models. The thermodynamic parameters confirmed the endothermic and spontaneous nature of adsorption. MgAl-LDH@MIL-88A was the green adsorbent as the residual mental contents ([Mg2+] = 1.095 mg L−1, [Fe3+] = 0.007 mg L−1, [Al3+] = 0.076 mg L−1) after adsorption met the Chinese sanitary standard for drinking water (GB 5749-2006). The mechanism of fluoride removal by MgAl-LDH@MIL-88A involved the electrostatic interactions between Fe3+ of MIL-88A and fluoride, and ligand exchange among hydroxyl groups of MgAl-LDH, carboxylate groups of the C4H4O4 and fluoride.
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Zheng J, Li W, Tang R, Xiong S, Gong D, Deng Y, Zhou Z, Li L, Su L, Yang L. Ultrafast photodegradation of nitenpyram by Ag/Ag 3PO 4/Zn-Al LDH composites activated by persulfate system: Removal efficiency, degradation pathway and reaction mechanism. CHEMOSPHERE 2022; 292:133431. [PMID: 34968516 DOI: 10.1016/j.chemosphere.2021.133431] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/09/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
In this study, an investigation is conducted into the degradation of nitenpyram (NTP) using highly efficient APMMO/PDS/Vis system. As photocatalysts, silver phosphate (AP) and calcined Zn-Al layered double hydroxides (MMO) exhibit high efficiency in achieving charge separation. Besides, the injection of electrons into peroxydisulfate (PDS) from the APMMO can contribute to obtaining the species in the active state with higher efficiency. Based on the APMMO/PDS/Vis system, 50 mg/L of nitenpyram (NTP, 50 mL) can be completely removed in 60 min using 0.8 g/L photocatalyst and 0.2 g/L PDS under the optimum condition and visible light (780 nm > λ > 420 nm). Meanwhile, as demonstrated under visible light within 30 min, an ultrahigh degradation efficiency can be achieved by NTP based on APMMO1/PDS/Vis system. Besides, the electron paramagnetic resonance (EPR) technique and radical quenching experiments suggested 1O2, h+, SO4-•, •O2-, and •OH are all contributory to the removal of pollutants. Given the outcomes achieved by LC/MS system and mass spectrometry, the primary degradation intermediates of NTP end up being converted into photodegradation products (such as 2-Chloropyridine, 6-Chloropurine Riboside and dl-Leucine). Additionally, there are three potential photodegradation pathways to NTP degradation have been deployed. Moreover, the NTP light degradation occurring in APMMO1/PDS/Vis system is competent under the three types of real water sample. Accordingly, the high-efficiency APMMO1/PDS/Vis system is fit for use in water pollution control for agricultural productions.
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Affiliation(s)
- Jiangfu Zheng
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Wenbo Li
- Hunan Province Environmental Protection Engineering Center for Organic Pollution Control of UrbanWater and Wastewater, Changsha, 410001, Hunan, China
| | - Rongdi Tang
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Sheng Xiong
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Daoxin Gong
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China.
| | - Yaocheng Deng
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China.
| | - Zhanpeng Zhou
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Ling Li
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Long Su
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Lihua Yang
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
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Xiao J, Wu Z, Li K, Zhao Z, Liu C. Immobilization of Ag(0) nanoparticles on quaternary ammonium functionalized polyacrylonitrile fiber as a highly active catalyst for 4-nitrophenol reduction. RSC Adv 2021; 12:1051-1061. [PMID: 35425113 PMCID: PMC8978928 DOI: 10.1039/d1ra07321d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/26/2021] [Indexed: 01/01/2023] Open
Abstract
Ag(0) nanoparticles were immobilized on various pyridine salt, imidazole salt and quaternary ammonium functionalized polyacrylonitrile fibers (PANFs) to prepare Ag(0)-immobilized fiber catalysts. The catalytic activities of these immobilized catalysts for 4-nitrophenol (4-NP) reduction were detected. Among them, the quaternary ammonium fiber with butyl group immobilized Ag(0) nanoparticle catalyst PANQA-C4F-Ag(0) showed the best catalytic activity, and can effectively catalyze 4-nitrophenol (4-NP) reduction with a high conversation rate of 99.6%. Furthermore, PANQA-C4F-Ag(0) can be easily recovered, and it was reused 20 times with little decrease in catalytic activity and moderate Ag retention (53.5%). Notably, the cationic groups in the functionalized fibers can stabilize Ag(0) nanoparticles through electrostatic interactions and steric effects, and play an important role in phase transfer catalysis. Accordingly, possible mechanisms for the 4-NP reduction catalyzed by PANQA-C4F-Ag(0) were proposed.
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Affiliation(s)
- Jian Xiao
- Department of Chemistry, College of Pharmacy, North China University of Science and Technology Tang Shan 300072 P. R. China
| | - Zhiying Wu
- Department of Chemistry, College of Pharmacy, North China University of Science and Technology Tang Shan 300072 P. R. China
| | - Kunlang Li
- Department of Chemistry, College of Pharmacy, North China University of Science and Technology Tang Shan 300072 P. R. China
| | - Zibo Zhao
- Department of Chemistry, College of Pharmacy, North China University of Science and Technology Tang Shan 300072 P. R. China
| | - Chunyan Liu
- Department of Chemistry, College of Pharmacy, North China University of Science and Technology Tang Shan 300072 P. R. China
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Wang D, Fan M, He T, Zeng F, Hu X, Li C, Su Z. Cu/Cu x S-Embedded N,S-Doped Porous Carbon Derived in Situ from a MOF Designed for Efficient Catalysis. Chemistry 2021; 27:11468-11476. [PMID: 34002909 DOI: 10.1002/chem.202101560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Indexed: 01/25/2023]
Abstract
The reasonable design of the precursor of a carbon-based nanocatalyst is an important pathway to improve catalytic performance. In this study, a simple solvothermal method was used to synthesize [Cu(TPT)(2,5-tdc)] ⋅ 2H2 O (Cu-MOF), which contains N and S atoms, in one step. Further in-situ carbonization of the Cu-MOF as the precursor was used to synthesize Cu/Cux S-embedded N,S-doped porous carbon (Cu/Cux S/NSC) composites. The catalytic activities of the prepared Cu/Cux S/NSC were investigated through catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). The results show that the designed Cu/Cux S/NSC has exceptional catalytic activity and recycling stability, with a reaction rate constant of 0.0256 s-1 , and the conversion rate still exceeds 90 % after 15 cycles. Meanwhile, the efficient catalytic reduction of dyes (CR, MO, MB and RhB) confirmed its versatility. Finally, the active sites of the Cu/Cux S/NSC catalysts were analyzed, and a possible multicomponent synergistic catalytic mechanism was proposed.
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Affiliation(s)
- Dongsheng Wang
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China.,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Mingyue Fan
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China.,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Tingyu He
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Fanming Zeng
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China.,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Xiaoli Hu
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China.,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Chun Li
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Zhongmin Su
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China.,Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, P. R. China.,Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun, 130022, P. R. China
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Abdollahi E, Heidari A, Mohammadi T, Asadi AA, Ahmadzadeh Tofighy M. Application of Mg-Al LDH nanoparticles to enhance flux, hydrophilicity and antifouling properties of PVDF ultrafiltration membrane: Experimental and modeling studies. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117931] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lin Y, Dong X, Zhao L. Hollow S‐ZIF‐(1:2.5)@Ni
x
S
y
as Highly Efficient Catalyst for 4‐Nitrophenol and Dye Reduction. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yongcen Lin
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- School of Chemistry and Environmental Engineering Changchun University of Science and Technology 130012 Changchun P. R. China
| | - Xue Dong
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
- School of Chemistry and Environmental Engineering Changchun University of Science and Technology 130012 Changchun P. R. China
| | - Lang Zhao
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 130022 Changchun P. R. China
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Rong J, Xu J, Qiu F, Fang Y, Zhang T, Zhu Y. 2D metal-organic frameworks-derived preparation of layered CuS@C as an efficient and stable electrocatalyst for hydrogen evolution reaction. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134856] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Self-directed hierarchical Cu3(PO4)2/Cu-BDC nanosheets array based on copper foam as an efficient and durable electrocatalyst for overall water splitting. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Xu J, Rong J, Qiu F, Zhu Y, Mao K, Fang Y, Yang D, Zhang T. Highly dispersive NiCo 2S 4 nanoparticles anchored on nitrogen-doped carbon nanofibers for efficient hydrogen evolution reaction. J Colloid Interface Sci 2019; 555:294-303. [PMID: 31394316 DOI: 10.1016/j.jcis.2019.07.104] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 10/26/2022]
Abstract
To solve the energy crisis problem, many efforts have been devoted to develop clean and sustainable alternatives to fossil fuels. Among varieties of pathways to obtain clean energy, electrochemical water splitting is a promising approach. Herein, we had successfully synthesized the NiCo2S4@porous nitrogen-doped carbon nanofibers (NiCo2S4@NCNF) nanocomposite via three successive steps consisted of in-situ oxidative polymerization, calcination, and solvothermal sulfuration reaction processes. The effect of controlled molar ratios to electrocatalytic performance was studied in detail. The optimized NiCo2S4@NCNF nanocomposite exhibits superior electrocatalytic activity for hydrogen evolution reaction with a small overpotential of 117 mV to drive a current density of 10 mA cm-2. More importantly, it exhibits similar electrocatalytic activity to the initial state even after successive cyclic voltammetry scan for 3000 cycles, indicating its excellent long-term stability. The superior electrochemical performance is attributed to the developed three-dimensional (3D) network nanostructure derived from bacterial cellulose nanofibers, the highly conductive porous nitrogen-doped carbon nanofibers, and the synergistic effect between metal Ni and Co of NiCo2S4. This study permits a new pathway to design efficient electrocatalysts based on eco-friendly materials for the production of clean hydrogen energy.
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Affiliation(s)
- Jinchao Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jian Rong
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Fengxian Qiu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Yao Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kaili Mao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yuanyuan Fang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Dongya Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Tao Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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