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Wang N, Zhao Y, Wu X, Li D, Ma R, Chen Z, Wu Z. Synthesis of Cu Nanoparticles Incorporated Mesoporous C/SiO 2 for Efficient Tetracycline Degradation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2478. [PMID: 37686986 PMCID: PMC10489891 DOI: 10.3390/nano13172478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/23/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
In this study, a Cu NPs-incorporated carbon-containing mesoporous SiO2 (Cu/C-SiO2) was successfully synthesized through a grinding-assisted self-infiltration method followed by an in situ reduction process. The obtained Cu/C-SiO2 was then employed as a Fenton-like catalyst to remove tetracycline (TC) from aqueous solutions. TEM, EDS, XRD, N2 adsorption-desorption, FTIR, and XPS methods were used to characterize the crystal structure, morphology, porosity, chemical composition, and surface chemical properties of the catalyst. The effects of initial TC concentration, catalyst dosage, H2O2 dosage, solution pH, HA addition, and water media on the TC degradation over Cu/C-SiO2 were investigated. Scavenging and electrochemical experiments were then carried out to analyze the TC degradation mechanism. The results show that the Cu/C-SiO2 can remove 99.9% of the concentrated TC solution (C0 = 500 mg·L-1), and it can be used in a wide pH range (R.E. = 94-99%, pH = 3.0-11.0). Moreover, hydroxyl radicals (•OH) were detected to be the dominant reactive species in this catalytic system. This study provides a simple and promising method for the synthesis of heteroatom-containing mesoporous catalysts for the decomposition of antibiotics in wastewater.
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Affiliation(s)
- Ning Wang
- Jiangsu Key Laboratory for Environment Functional Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yuanyuan Zhao
- Jiangsu Key Laboratory for Environment Functional Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuelian Wu
- Jiangsu Key Laboratory for Environment Functional Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Dapeng Li
- Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Ruguang Ma
- Jiangsu Key Laboratory for Environment Functional Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zhigang Chen
- Jiangsu Key Laboratory for Environment Functional Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zhengying Wu
- Jiangsu Key Laboratory for Environment Functional Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
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Wang Y, Liu C, Wang C, Hu Q, Ding L. 0D/3D NiCo 2O 4/defected UiO-66 catalysts for enhanced degradation of tetracycline in peroxymonosulfate/simulated sunlight systems: Degradation mechanisms and pathways. CHEMOSPHERE 2022; 299:134322. [PMID: 35306056 DOI: 10.1016/j.chemosphere.2022.134322] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/04/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
Developing synergistic systems and taking environmental risks into account are two necessary aspects of being considered to remove persistent organic pollutants efficiently. Thus, a combined catalytic system uniting the Fenton-like process and simulated solar-light photocatalysis has been constructed. Moreover, a series of NiCo2O4/HP-UiO-66 catalysts (yNiCo-DUx) were also fabricated to improve tetracycline (TC) removal efficiency. The NiCo2O4 nanoparticles (NPs) and hierarchically porous metal-organic frameworks (HP-MOFs) were synthesised using one-step calcination. The Z-scheme structure of the catalysts was confirmed by ESR, XPS, DRS, time-resolved PL (TR-PL) spectra and the quenching experiments. The NiCo2O4 nanoparticles could be embedded and fixed into the defects of the MOF structure, and the leaching of toxic metals was also significantly suppressed. In the optimal reaction condition with 15NiCo-DU50, sunlight, and peroxymonosulfate (PMS), the total removal efficiency of TC could reach 98.5% within 8 min of irradiation, and the highest % RSE could reach 11.2%. Moreover, the corresponding reaction rate was 28.7, 3.6 and 1.3-10.2 times higher than photocatalysis, Fenton-like processes and other catalysts. Furthermore, the possible degradation mechanism, generation of reactive species and PMS excitation pathways were also investigated in depth. The present study sheds light on the fabrication of HP-MOFs based catalysts and the combination of various methods to eliminate organic pollutants.
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Affiliation(s)
- Yuhan Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, PR China
| | - Chang Liu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, PR China
| | - Chao Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, PR China.
| | - Qing Hu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, PR China.
| | - Longzhen Ding
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, PR China
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Massimi SE, Metzger KE, McGuirk CM, Trewyn BG. Best Practices in the Characterization of MOF@MSN Composites. Inorg Chem 2022; 61:4219-4234. [PMID: 35238205 DOI: 10.1021/acs.inorgchem.1c03818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Research on permanently porous nanomaterials has gripped the attention of materials chemists for decades. Mesoporous silica nanoparticles (MSNs) and metal-organic frameworks (MOFs) are two of the most studied classes of materials in this field. Recently, explorations into embedding MOFs within the mesopores of MSNs have aimed to create composites that are greater than the sum of their parts. While initial progress has been promising, it has become clear that the characterization of these MOF@MSN composite materials represents a significant challenge that is often overlooked, leading to an unfortunate ambiguity in the field. The greatest difficulty lies in determining whether the product of a synthesis is simply a physical mixture of the two materials or truly the targeted composite, with MOF exclusively crystallized in the pores or on the surfaces of the MSN. This challenge is aggravated by the dramatically different porosity and composition of the components, often resulting in ambiguous information from common characterization techniques. This Viewpoint will address this challenge by calling attention to the mentioned issues and proposing a standardized approach to characterizing these materials. In particular, the use of powder X-ray diffraction, gas physisorption, and electron microscopy with systematic control experiments and data analysis is outlined. This approach can provide the information needed to clearly validate the architecture of an apparent MOF@MSN composite.
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Affiliation(s)
- Scott Edward Massimi
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Kara E Metzger
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - C Michael McGuirk
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Brian G Trewyn
- Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
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Zhang G, Ali MM, Feng X, Zhou J, Hu L. Mesoporous molecularly imprinted materials: From preparation to biorecognition and analysis. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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