共查询到20条相似文献,搜索用时 15 毫秒
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Thermoresponsive Amphoteric Metal–Organic Frameworks for Efficient and Reversible Adsorption of Multiple Salts from Water 下载免费PDF全文
Ranwen Ou Huacheng Zhang Jing Wei Seungju Kim Li Wan Nhi Sa Nguyen Yaoxin Hu Xiwang Zhang George P. Simon Huanting Wang 《Advanced materials (Deerfield Beach, Fla.)》2018,30(34)
Regenerable, high‐efficiency salt sorption materials are highly desirable for water treatment. Here, a thermoresponsive, amphoteric metal–organic framework (MOF) material is reported that can adsorb multiple salts from saline water at room temperature and effectively release the adsorbed salts into water at elevated temperature (e.g., 80 °C). The amphoteric MOF, integrated with both cation‐binding carboxylic groups and anion‐binding tertiary amine groups, is synthesized by introducing a polymer with tertiary amine groups into the cavities of a water‐stable MOF such as MIL‐121 with carboxylic groups inside its frameworks. The amphoterized MIL‐121 exhibits excellent salt adsorption properties, showing stable adsorption – desorption cycling performances and high LiCl, NaCl, MgCl2, and CaCl2 adsorption capacities of 0.56, 0.92, 0.25, and 0.39 mmol g?1, respectively. This work provides a novel, effective strategy for synthesizing new‐generation, environmental‐friendly, and responsive salt adsorption materials for efficient water desalination and purification. 相似文献
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Metal–Organic Frameworks: Biomimetic Replication of Microscopic Metal–Organic Framework Patterns Using Printed Protein Patterns (Adv. Mater. 45/2015) 下载免费PDF全文
Kang Liang Carlos Carbonell Mark J. Styles Raffaele Ricco Jiwei Cui Joseph J. Richardson Daniel Maspoch Frank Caruso Paolo Falcaro 《Advanced materials (Deerfield Beach, Fla.)》2015,27(45):7483-7483
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Metal–Organic Frameworks: Integration of an Inorganic Semiconductor with a Metal–Organic Framework: A Platform for Enhanced Gaseous Photocatalytic Reactions (Adv. Mater. 28/2014) 下载免费PDF全文
Rui Li Jiahua Hu Mingsen Deng Helin Wang Xijun Wang Yingli Hu Hai‐Long Jiang Jun Jiang Qun Zhang Yi Xie Yujie Xiong 《Advanced materials (Deerfield Beach, Fla.)》2014,26(28):4907-4907
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Magnetic Metal–Organic Frameworks for Efficient Carbon Dioxide Capture and Remote Trigger Release 下载免费PDF全文
Haiqing Li Muhammad Munir Sadiq Kiyonori Suzuki Raffaele Ricco Christian Doblin Anita J. Hill Seng Lim Paolo Falcaro Matthew R. Hill 《Advanced materials (Deerfield Beach, Fla.)》2016,28(9):1839-1844
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Implantable Flexible Electronics: Materials and Techniques for Implantable Nutrient Sensing Using Flexible Sensors Integrated with Metal–Organic Frameworks (Adv. Mater. 23/2018) 下载免费PDF全文
Wei Ling Guoguang Liew Ya Li Yafeng Hao Huizhuo Pan Hanjie Wang Baoan Ning Hang Xu Xian Huang 《Advanced materials (Deerfield Beach, Fla.)》2018,30(23)
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Muhammad Usman Shruti Mendiratta Kuang‐Lieh Lu 《Advanced materials (Deerfield Beach, Fla.)》2017,29(6)
Metal–organic frameworks (MOFs) with low density, high porosity, and easy tunability of functionality and structural properties, represent potential candidates for use as semiconductor materials. The rapid development of the semiconductor industry and the continuous miniaturization of feature sizes of integrated circuits toward the nanometer (nm) scale require novel semiconductor materials instead of traditional materials like silicon, germanium, and gallium arsenide etc. MOFs with advantageous properties of both the inorganic and the organic components promise to serve as the next generation of semiconductor materials for the microelectronics industry with the potential to be extremely stable, cheap, and mechanically flexible. Here, a perspective of recent research is provided, regarding the semiconducting properties of MOFs, bandgap studies, and their potential in microelectronic devices. 相似文献
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Kolleboyina Jayaramulu Florian Geyer Andreas Schneemann tpn Kment Michal Otyepka Radek Zboril Doris Vollmer Roland A. Fischer 《Advanced materials (Deerfield Beach, Fla.)》2019,31(32)
Metal–organic frameworks (MOFs) have diverse potential applications in catalysis, gas storage, separation, and drug delivery because of their nanoscale periodicity, permanent porosity, channel functionalization, and structural diversity. Despite these promising properties, the inherent structural features of even some of the best‐performing MOFs make them moisture‐sensitive and unstable in aqueous media, limiting their practical usefulness. This problem could be overcome by developing stable hydrophobic MOFs whose chemical composition is tuned to ensure that their metal–ligand bonds persist even in the presence of moisture and water. However, the design and fabrication of such hydrophobic MOFs pose a significant challenge. Reported syntheses of hydrophobic MOFs are critically summarized, highlighting issues relating to their design, characterization, and practical use. First, wetting of hydrophobic materials is introduced and the four main strategies for synthesizing hydrophobic MOFs are discussed. Afterward, critical challenges in quantifying the wettability of these hydrophobic porous surfaces and solutions to these challenges are discussed. Finally, the reported uses of hydrophobic MOFs in practical applications such as hydrocarbon storage/separation and their use in separating oil spills from water are summarized. Finally, the state of the art is summarized and promising future developments of hydrophobic MOFs are highlighted. 相似文献
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Metal–organic frameworks (MOFs) have attracted significant research attention in diverse areas due to their unique physical and chemical characteristics that allow their innovative application in various research fields. Recently, the application of MOFs in heterogeneous photocatalysis for water splitting, CO2 reduction, and organic transformation have emerged, aiming at providing alternative solutions to address the world‐wide energy and environmental problems by taking advantage of the unique porous structure together with ample physicochemical properties of the metal centers and organic ligands in MOFs. In this review, the latest progress in MOF‐involved solar‐to‐chemical energy conversion reactions are summarized according to their different roles in the photoredox chemical systems, e.g., photocatalysts, co‐catalysts, and hosts. The achieved progress and existing problems are evaluated and proposed, and the opportunities and challenges of MOFs and their related materials for their advanced development in photocatalysis are discussed and anticipated. 相似文献
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Xiang Gao Xiaokun Pei David W. Gardner Christian S. Diercks Seungkyu Lee Bunyarat Rungtaweevoranit Mathieu S. Prevot Chenhui Zhu Sirine Fakra Roya Maboudian 《Advanced materials (Deerfield Beach, Fla.)》2019,31(12)
Nanocasting based on porous templates is a powerful strategy in accessing materials and structures that are difficult to form by bottom‐up syntheses in a controlled fashion. A facile synthetic strategy for casting ordered, nanoporous platinum (NP‐Pt) networks with a high degree of control by using metal–organic frameworks (MOFs) as templates is reported here. The Pt precursor is first infiltrated into zirconium‐based MOFs and subsequently transformed to 3D metallic networks via a chemical reduction process. It is demonstrated that the dimensions and topologies of the cast NP‐Pt networks can be accurately controlled by using different MOFs as templates. The Brunauer–Emmett–Teller surface areas of the NP‐Pt networks are estimated to be >100 m2 g?1 and they exhibit excellent catalytic activities in the methanol electrooxidation reaction (MEOR). This new methodology presents an attractive route to prepare well‐defined nanoporous materials for diverse applications ranging from energy to sensing and biotechnology. 相似文献
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Jia Zhuang Allison P. Young Chia‐Kuang Tsung 《Small (Weinheim an der Bergstrasse, Germany)》2017,13(32)
Owing to the progressive development of metal–organic‐frameworks (MOFs) synthetic processes and considerable potential applications in last decade, integrating biomolecules into MOFs has recently gain considerable attention. Biomolecules, including lipids, oligopeptides, nucleic acids, and proteins have been readily incorporated into MOF systems via versatile formulation methods. The formed biomolecule‐MOF hybrid structures have shown promising prospects in various fields, such as antitumor treatment, gene delivery, biomolecular sensing, and nanomotor device. By optimizing biomolecule integration methods while overcoming existing challenges, biomolecule‐integrated MOF platforms are very promising to generate more practical applications. 相似文献
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Mesoporous Metal–Organic Frameworks with Exceptionally High Working Capacities for Adsorption Heat Transformation 下载免费PDF全文
Zong‐Wen Mo Hao‐Long Zhou Dong‐Dong Zhou Rui‐Biao Lin Pei‐Qin Liao Chun‐Ting He Wei‐Xiong Zhang Xiao‐Ming Chen Jie‐Peng Zhang 《Advanced materials (Deerfield Beach, Fla.)》2018,30(4)
Pore size is one of the most important parameters of adsorbents, and mesoporous materials have received intense attention for large guests. Here, a series of mesoporous coordination polymers underlying a new framework prototype for fast expansion of pore size is reported and the profound effect of pore size on adsorption heat transformation is demonstrated. Three isostructural honeycomb‐like frameworks are designed and synthesized by combining ditopic linear metal oxalate chains and triangular tris‐pyridine ligands. Changing the ligand bridging length from 5.5 to 8.6 and 9.9 Å gives rise to effective pore diameter from 20 to 33 and 37 Å, surface area from 2096 to 2630 and 2749 m2 g?1, and pore volume from 1.19 to 1.93 and 2.36 cm3 g?1, respectively. By virtue of the unique and tunable isotherm shape of mesopores, exceptionally large working capacity up to 1.19 g g?1 or 0.38 g cm?3 for adsorption heat transformation can be achieved using R‐134a (1,1,1,2‐tetrafluroethane) as a working fluid. 相似文献