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Pang J, Jiang T, Ke Z, Xiao Y, Li W, Zhang S, Guo P. Wood Cellulose Nanofibers Grafted with Poly(ε-caprolactone) Catalyzed by ZnEu-MOF for Functionalization and Surface Modification of PCL Films. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1904. [PMID: 37446420 DOI: 10.3390/nano13131904] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
Renewable cellulose nanofiber (CNF)-reinforced biodegradable polymers (such as polycaprolactone (PCL)) are used in agriculture, food packaging, and sustained drug release. However, the interfacial incompatibility between hydrophilic CNFs and hydrophobic PCL has limited further application as high-performance biomaterials. In this work, using a novel ZnEu-MOF as the catalyst, graft copolymers (GCL) with CNFs were grafted with poly(ε-caprolactone) (ε-CL) via homogeneous ring-opening polymerization (ROP), and used as strengthening/toughening nanofillers for PCL to fabricate light composite films (LCFs). The results showed that the ZnEu-MOF ([ZnEu(L)2(HL)(H2O)0.39(CH3OH)0.61]·H2O, H2L is 5-(1H-imidazol-1-yl)-1,3-benzenedicarboxylic acids) was an efficient catalyst, with low toxicity, good stability, and fluorescence emissions, and the GCL could efficiently promote the dispersion of CNFs and improve the compatibility of the CNFs and PCL. Due to the synergistic effect of the ZnEu-MOF and CNFs, considerable improvements in the mechanical properties and high-intensity fluorescence were obtained in the LCFs. The 4 wt% GCL provided the LCF with the highest strength and elastic modulus, which increased by 247.75% and 109.94% compared to CNF/PCL, respectively, showing the best elongation at break of 917%, which was 33-fold higher than CNF/PCL. Therefore, the ZnEu-MOF represented a novel bifunctional material for ROP reactions and offered a promising modification strategy for preparing high-performance polymer composites for agriculture and biomedical applications.
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Affiliation(s)
- Jinying Pang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
| | - Tanlin Jiang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, China
- College of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Zhilin Ke
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control (College of Chemistry), Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Yu Xiao
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control (College of Chemistry), Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Weizhou Li
- College of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
- School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China
| | - Shuhua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control (College of Chemistry), Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Penghu Guo
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control (College of Chemistry), Guangdong University of Petrochemical Technology, Maoming 525000, China
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Bazhina ES, Shmelev MA, Babeshkin KA, Efimov NN, Kiskin MA, Eremenko IL. Two families of Ln(III)-V(IV) compounds (Ln(III) = Eu, Tb, Dy, Ho) of different structural types mediated by Rb+ and Cs+ cations: Slow magnetic relaxation of Eu(III)- and Ho(III)-containing members. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Wang ST, Liu YJ, Zhang CY, Yang F, Fang WH, Zhang J. Cluster-Based Crystalline Materials for Iodine Capture. Chemistry 2023; 29:e202202638. [PMID: 36180419 DOI: 10.1002/chem.202202638] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Indexed: 11/06/2022]
Abstract
The treatment of radioactive iodine in nuclear waste has always been a critical issue of social concern. The rational design of targeted and efficient capture materials is of great significance to the sustainable development of the ecological environment. In recent decades, crystalline materials have served as a molecular platform to study the binding process and capture mechanism of iodine molecules, enabling people to understand the interaction between radioactive iodine guests and pores intuitively. Cluster-based crystalline materials, including molecular clusters and cluster-based metal-organic frameworks, are emerging candidates for iodine capture due to their aggregative binding sites, precise structural information, tunable pores/packing patterns, and abundant modifications. Herein, recent progress of different types of cluster materials and cluster-dominated metal-organic porous materials for iodine capture is reviewed. Research prospects, design strategies to improve the affinity for iodine and possible capture mechanisms are discussed.
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Affiliation(s)
- San-Tai Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.,University of Chinese Academy of Sciences Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ya-Jie Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Cheng-Yang Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Fan Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Wei-Hui Fang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
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Meng XW, Ding T, Liu B, Gong XS, Liu B, Zheng LN. Highly selective C 2H 2 and CO 2 capture based on two new Zn II-MOFs and fluorescence sensing of two doped MOFs with Eu III. CrystEngComm 2023. [DOI: 10.1039/d3ce00068k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Two Zn(ii)-based MOFs have been constructed. The activated Zn-MOF1 and Zn-MOF2 show selective separation of C2H2 and CO2 over CH4. Eu@Zn-MOF1 and Eu@Zn-MOF2 were obtained by adding EuIII ions and showed selectivity to Fe3+ ions in aqueous solution.
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Jiang W, Yu CX, Yu MX, Ding J, Song JG, Sun XQ, Liu LL. Efficient and selective removal of Pb 2+ from aqueous solution by using an O - functionalized metal-organic framework. Dalton Trans 2022; 51:10077-10084. [PMID: 35730584 DOI: 10.1039/d2dt01117d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead (Pb) is one of the most widespread and highly toxic heavy metals in the environment. The design and synthesis of adsorbent materials for the selective and efficient removal of Pb2+ from aqueous solution has received much attention. Herein, the ligand 4,4'-azoxydibenzoic acid with the O- group was elaborately selected to construct a novel Pr-based MOF for Pb2+ removal. The as-prepared MOF adsorbents with high stability exhibited ultra-high selectivity for Pb2+, even in the presence of various highly concentrated competitive ions (with the ratios from 1 : 5 to 1 : 50). Also, a high uptake capacity (560.26 mg g-1) can be achieved for the MOF material, due to the availability of sufficient adsorption sites. The strong electrostatic attraction and coordination interaction between the numerous active O- sites on MOF adsorbents and Pb2+ can account for the good adsorption performance for Pb2+, which was systematically verified by zeta potential, FT-IR and XPS studies.
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Affiliation(s)
- Wen Jiang
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Cai-Xia Yu
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Ming-Xuan Yu
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Jing Ding
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Jian-Guo Song
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Xue-Qin Sun
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
| | - Lei-Lei Liu
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China.
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Brito-Santos G, Hernández-Rodríguez C, Gil-Hernández B, González-Díaz B, Martín IR, Guerrero-Lemus R, Sanchiz J. Highly luminescent mixed-ligand bimetallic lanthanoid(III) complexes for photovoltaic applications. Dalton Trans 2022; 51:3146-3158. [PMID: 35112691 DOI: 10.1039/d1dt04248c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Six new mixed-ligand bimetallic complexes [Eu2(bz)4(tta)2(phen)2] (1), [Gd2(bz)4(tta)2(phen)2] (2), [EuTb(bz)4(tta)2(phen)2] (3), [EuGd(bz)4(tta)2(phen)2] (4), [Eu1,2Gd0,8(bz)4(tta)2(phen)2] (5) and [Eu1,6Gd0,4(bz)4(tta)2(phen)2] (6) have been prepared with the Eu3+, Gd3+ and Tb3+ ions and the benzoate (bz-), 2-thenoyltrifluoroacetonate (tta-) and the 1,10-phenanthroline (phen) ligands. The compounds combine highly efficient antennas to obtain highly luminescent complexes to enhance solar cell efficiency. The benzoate ligand has been chosen to take its advantage as a bridging ligand to end up with bimetallic complexes to study the effect of combining two metal ions in the luminescent molecule. The structure of 1 was obtained by single-crystal X-ray diffraction, and 1-6 were found to be isostructural by powder X-ray diffraction analysis. The photophysical properties were studied by the absorbance and emission spectra and emission lifetimes. The magnetic properties of 2 were studied, and we found intramolecular antiferromagnetic interactions between the Gd3+ ions. We prepared luminescent down-shifting layers (LDSL) with the 1, 3-6 complexes embedded in ethylene-vinyl-acetate and studied their effect in the external quantum efficiency (EQE) and intensity-voltage (I-V) plots of a solar mini-module. We found that LDSL containing the bimetallic complexes 3 and 6 enhance the efficiency of the solar mini-module from 11.26(3)% to 11.76(4)% (+0.52%) and to 11.44(2)% (+0.21%), respectively.
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Affiliation(s)
- Gabriela Brito-Santos
- Departamento de Química, Facultad de Ciencias, Universidad de La Laguna, Tenerife, 38206, Spain.
| | - Cecilio Hernández-Rodríguez
- Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, 38206, Spain.,Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, 38206, Spain
| | - Beatriz Gil-Hernández
- Departamento de Química, Facultad de Ciencias, Universidad de La Laguna, Tenerife, 38206, Spain. .,Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, 38206, Spain
| | - Benjamín González-Díaz
- Departamento de Ingeniería Industrial, Escuela Superior de Ingeniería y Tecnología, Universidad de La Laguna, Tenerife, 38206, Spain
| | - Inocencio R Martín
- Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, 38206, Spain.,Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, 38206, Spain
| | - Ricardo Guerrero-Lemus
- Departamento de Física, Facultad de Ciencias, Universidad de La Laguna, Tenerife, 38206, Spain.,Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, 38206, Spain
| | - Joaquín Sanchiz
- Departamento de Química, Facultad de Ciencias, Universidad de La Laguna, Tenerife, 38206, Spain. .,Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, 38206, Spain
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