Article
Nanoscience & Nanotechnology
Zhuangzhuang Gao, Baoju Li, Zhan Li, Tongwen Yu, Shuchang Wang, Qianrong Fang, Shilun Qiu, Ming Xue
Summary: In this study, a solvent-free space-confined conversion (SFSC) approach was used to fabricate a series of free-standing metal-organic framework (MOF) membranes. These membranes have a robust and unique structure, with large amounts of irregular-shaped micron-scale pore cavities and highly porous interlayers, resulting in satisfactory selectivities and exceptional permeances.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Hao Jia, Baipeng Yin, Jiaying Chen, Ye Zou, Hong Wang, Yu Zhang, Tongmei Ma, Qiang Shi, Jiannian Yao, Shuming Bai, Chuang Zhang
Summary: In this study, a single-crystalline framework material (Ln-MOF) is reported, which exhibits compass-like magnetic alignment under low magnetic fields. This magnetic alignment is attributed to the strong macroscopic anisotropy of Ln-MOF, where the highly-ordered structure allows the sum of molecular anisotropy of Ln-ions according to crystal symmetry. In tetragonal Ln-MOFs, the alignment can be either parallel or perpendicular to the field, depending on the easiest axis of molecular anisotropy. Reversible switching between the two alignments is realized by removing and re-adsorbing solvent molecules in the framework. When the crystal symmetry is lowered in monoclinic Ln-MOFs, the alignments become even inclined (47°-66°) to the field. These fascinating properties of Ln-MOFs would encourage further explorations of framework materials containing paramagnetic centers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Physical
Jun Guo, Yue Wan, Yanfei Zhu, Meiting Zhao, Zhiyong Tang
Summary: MNP/MOF composite photocatalysts exhibit excellent performance and great potential applications, especially in photocatalytic hydrogen production, carbon dioxide reduction, organic transformation reactions, and photodegradation of pollutants. The challenges and prospects in the current research are also proposed and discussed for further advancement in this hot research field.
Article
Chemistry, Physical
Yuan Ji, Wanning Gao, Muhammad Sohail, Lei Lin, Xing Zhang
Summary: This article introduces a post-modification method with adjustable apertures to reduce the influence of micropores in Metal-organic frameworks (MOFs) on the activity of bio-catalysts in solvent-free and viscous reaction systems. The synthesized defected lipase-MOF composites (CRL@dZIF-90) efficiently catalyze esterification reactions in solvent-free systems to synthesize phytosterol esters (conversion to stigmasterol conjugated linoleate ester up to 95%). The activity of CRL@dZIF-90 remains above 80% after 5 cycles and 85% after one-month storage, demonstrating the potential of post-modification to enhance the activity of enzyme@MOF bio-composites in solvent-free systems.
JOURNAL OF CATALYSIS
(2023)
Article
Biochemistry & Molecular Biology
Ruyi Zhang, Liangliang Zhu, Bingbing Yue
Summary: Lanthanide metal-organic frameworks (Ln-MOFs) with adjustable structures and wide optical applications are highly studied. However, MOFs with stable framework structures and wide linear pH response in acidic or alkaline solutions are rare. In this study, a new metal-organic framework material was synthesized using 4,4',4''-s-triazine-2,4,6-triyltribenzoate as the organic ligand coordinated with lanthanide ions. The material exhibited a porous three-dimensional square framework structure and emitted red or green fluorescence under 365 nm UV light. The framework showed wide linear pH response (pH=0-14) and could be a potential fluorescence sensing material for pH detection.
Article
Chemistry, Physical
Helena Brunckova, Erika Mudra, Lucas Rocha, Eduardo Nassar, Willian Nascimento, Hristo Kolev, Alexandra Kovalcikova, Zuzana Molcanova, Maria Podobova, Lubomir Medvecky
Summary: The study reports the preparation of lanthanide metal-organic frameworks by solvothermal synthesis, showcasing different synthesis routes and modulation methods. By utilizing various ratios of lanthanide metals and co-doping, transparent thin films with excellent luminescence properties were successfully fabricated.
APPLIED SURFACE SCIENCE
(2021)
Review
Chemistry, Physical
Yuying Shan, Liyu Chen, Huan Pang, Qiang Xu
Summary: Hybrid frameworks based on MOFs demonstrate excellent properties with complex compositions and well-designed structures, surpassing traditional single framework materials.The high chemical tunability and diversity of these new materials offer great potential for both synthetic approaches and a wide range of applications. Opportunities and challenges for MOF-based hybrid frameworks are discussed, highlighting their promising prospects in various fields.
Review
Chemistry, Multidisciplinary
Alec Wang, Madeline Walden, Romy Ettlinger, Fabian Kiessling, Jeremiah J. Gassensmith, Twan Lammers, Stefan Wuttke, Quim Pena
Summary: Metal-organic framework (MOF) materials have great potential in biomedical research due to their high porosity, crystallinity, and structural and compositional diversity. They have the ability to retain organic molecules, metals, and gases, and survive harsh physiological conditions. MOFs have been extensively studied for various pathologies and have shown promising performance in regenerative medicine when integrated with other biomedical materials. However, there are challenges in translating MOFs into clinically relevant medicinal products.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wenlei Zhang, Jichuang Wu, Wenxiong Shi, Peishan Qin, Wenfeng Lang, Xinglong Zhang, Zhida Gu, Hongfeng Li, Yun Fan, Yu Shen, Suoying Zhang, Zhongyi Liu, Yu Fu, Weina Zhang, Fengwei Huo
Summary: The article introduces a new function of metal-organic frameworks (MOFs) as an ideal model to construct structurally ordered metal promoters. The strategy of using MOFs as a model not only helps to reveal the action mechanism behind metal promoters, but also allows the anchoring of one or multiple kinds of metal promoters, especially noble metal promoters. It is demonstrated that the prepared Pd/bpy-UiO-Cu catalysts show high selectivity (>99%) in a hydrogenation reaction, thanks to the enhanced interaction between Pd nanoparticles and MOF carriers induced by Cu promoters.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tingkai Feng, Songwei Zhang, Conger Li, Tao Li
Summary: This study reports the development of a metal-organic framework supported tandem catalyst for direct alcohol to ester conversion under solvent-free conditions. The catalyst exhibits high conversion and ester selectivity, and operates through a unique esterification pathway.
Article
Nanoscience & Nanotechnology
Doo San Choi, Dae Won Kim, Jung-Hoon Lee, Yun Seok Chae, Dong Won Kang, Chang Seop Hong
Summary: The addition of diamine groups onto metal-organic frameworks enhances CO2 adsorption capacity, and optimizing the solvent treatment can increase the loading of diamine groups, which is crucial for efficient CO2 capture. This study establishes a correlation between solvent effects and diamine functionalization, providing insights into maximizing the performance of MOFs for CO2 adsorption.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Liang Ma, Xiao Han, Shengping Zhang, Luda Wang
Summary: This study reports a metal-organic framework (MOF)-based membrane with ion-selective subnanochannels that achieves excellent organic solvent forward osmosis (OSFO) performance by overcoming the trade-off between solvent permeance and reverse salt flux. The membrane exhibits lower conductivity and smaller channel size, leading to superior permeance and resistance to salt flux reversal. It holds great potential for sustainable separation in the pharmaceutical industry.
ACS APPLIED NANO MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Jiayishuo Wang, Muxin Yu, Lian Chen, Zhijia Li, Shengchang Li, Feilong Jiang, Maochun Hong
Summary: Four lanthanide metal-organic frameworks were constructed with different lanthanide ions, showing emissions in different colors. Tb-MOF exhibited excellent Fe3+ detection capability in aqueous media with strong anti-interference ability towards other cations and easy recognition by naked eyes. Additionally, these MOFs were efficient fluorescent sensors for detecting acetone.
Article
Chemistry, Multidisciplinary
Junyu Ren, Zheng Niu, Yingxiang Ye, Chen-Yen Tsai, Shixi Liu, Qingzhi Liu, Xianqiang Huang, Ayman Nafady, Shengqian Ma
Summary: Guided by a second-sphere interaction strategy, a Tb(III)-based metal-organic framework (MMCF-4) was fabricated for turn-on sensing of methyl amine with ultra-low detection limit and high turn-on efficiency. The design of both primary and secondary coordination spheres of Tb(III) enabled the first turn-on sensing of organic amines in aqueous conditions, suggesting a promising strategy for high-performance turn-on sensing for Ln-MOFs and luminous materials driven by other metal chromophores.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Analytical
Xu Zhu, Jing Tang, Xilian Ouyang, Yibo Liao, Haopeng Feng, Jiangfang Yu, Li Chen, Yating Lu, Yuyang Yi, Lin Tang
Summary: In this study, a portable paper-based colorimetric sensor with a smartphone platform was developed for on-site and quantitative analysis of antibiotic residues. The method is based on aptamer-regulated nanozyme activity and shows an ultrahigh sensitivity. This analysis platform has excellent potential for on-site and mass screening of antibiotic residues.
ANALYTICAL CHEMISTRY
(2022)