Metal organic framework (MOF)-based micro/nanoscaled materials for heavy metal ions removal: The cutting-edge study on designs, synthesis, and applications

Xu, Guiyin; An, Zi-Han; Xu, Ke; Liu, Qian; Das, Rasel; Zhao, Honglin

doi:10.1016/j.ccr.2020.213554

Cited by 243 publications

(77 citation statements)

References 199 publications

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“…Metal-organic frameworks (MOFs) are a novel class of crystallized porous materials that are self-assembled by metal clusters as connecting points and organic ligands as bridging molecules to form a two- or three-dimensional framework through coordination bonds [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. MOFs have attracted great interests in recent years by having remarkable features such as adjustable structure, high porosity, large specific surface area, good modifiability and excellent stability and have been used widely in many areas, for example, adsorption [ 8 , 9 , 10 , 11 , 12 , 13 ], catalysis [ 14 , 15 , 16 , 17 , 18 ], sensing [ 19 , 20 , 21 , 22 , 23 ], drug delivery [ 24 , 25 , 26 , 27 , 28 , 29 , 30 ] and gas storage and separation [ 31 , 32 , 33 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Peptide-Mediated Synthesis of Zeolitic Imidazolate Framework-8: Effect of Molecular Hydrophobicity, Charge Number and Charge Location

et al. 2021

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Three amphiphilic peptides with varied molecular hydrophobicity, charge number and charge location have been designed as regulators to modulate the crystal growth of zeolitic imidazolate framework-8 (ZIF-8). All three peptides can interact with ZIF-8 to inhibit {100} facet growth and produce truncated cubic crystals. The peptide’s molecular hydrophobicity plays a dominant role in defining the final morphology and size of the ZIF-8 crystals. The peptides with less charge and higher hydrophobicity can promote nuclei formation and crystal growth to give smaller ZIF-8 crystals. However, the charge located in the center of the molecular hydrophobic region has little effect on the crystal nucleation and growth due to the shielding of its charge by molecular aggregation. The study provides insights into the effect of molecular charge and hydrophobicity on ZIF-8 crystal growth and is helpful for guiding the molecular design for regulating the synthesis of metal-organic framework materials.

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Section: Introductionmentioning

confidence: 99%

Peptide-Mediated Synthesis of Zeolitic Imidazolate Framework-8: Effect of Molecular Hydrophobicity, Charge Number and Charge Location

et al. 2021

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“…Similarly, Cd 2+ , Pb 2+ , Co 2+ and other ions were also detected by using MOF based sensing techniques (Table 2) [29,65,66]. For instance, a highly sensitive conductive electrochemical sensor for detecting cadmium ions was constructed by coating the UiO-66-NH 2 with the conductive PANI polymer.…”

Section: Other Metal Ionsmentioning

confidence: 99%

Metal–Organic Frameworks (MOFs) Based Analytical Techniques for Food Safety Evaluation

Xue

Yao²,

Zhang³

et al. 2021

eFood

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As the supply chain of food around the world has become more and more globalized and complicated, food safety issue has attracted considerable concern owing to the widespread pollution of the whole ecosystem and the extent of their impact on the well-being of human beings. Correspondingly, a variety of analysis approaches to detecting and even adsorbing contaminants in food have been extensively explored and investigated. Among them, Metal-Organic Frameworks (MOFs) as potential versatile sensing materials have been utilized in the construction of multitude of sensing platforms with excellent performance to monitor different pollutants of food, including pesticide residues, heavy metals, mycotoxins and so on. Herein, we briefly introduce the progress of the MOFs-based sensing techniques, and then present the typical contributions of representative sensing platforms in detection of pesticides, heavy metals and other contaminants. Finally, we evaluate and discuss the future perspectives and challenges of MOFs in food contaminant analysis.

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“…Inorganic porous materials display interesting physical properties, such as magnetic, heterogeneous catalysis, adsorption/ separation, and ion-exchange due to their diverse composition of metal ions and unique porous structure. [1][2][3][4][5][6][7][8][9] Among them, porous transition-metal phosphates have been attracting wide attention in renewable energy conversion and storage technology, [2,3] such as supercapacitors, [10,11] metal-air batteries, especially, hydrogen energy from water splitting. [2,[12][13][14][15][16] However, the overpotential at 10 mA/cm 2 for oxygen evolution reaction (OER) in the process of water splitting, corresponding to 10 % solar-to-fuel conversion efficiency, is still significantly higher than the standard potential of~1.23 V because it involves multiple proton-coupled electron transfers (PCET) process, leading to its sluggish kinetics.…”

Section: Introductionmentioning

confidence: 99%

Rational Construction of a N, F Co‐doped Mesoporous Cobalt Phosphate with Rich‐Oxygen Vacancies for Oxygen Evolution Reaction and Supercapacitors

Pan

Guo

et al. 2021

Chemistry A European J

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Transition‐metal phosphates have been widely applied as promising candidates for electrochemical energy storage and conversion. In this study, we report a simple method to prepare a N, F co‐doped mesoporous cobalt phosphate with rich‐oxygen vacancies by in‐situ pyrolysis of a Co‐phosphate precursor with NH4+ cations and F− anions. Due to this heteroatom doping, it could achieve a current density of 10 mA/cm2 at lower overpotential of 276 mV and smaller Tafel slope of 57.11 mV dec−1 on glassy carbon. Moreover, it could keep 92 % of initial current density for 35 h, indicating it has an excellent stability and durability. Furthermore, the optimal material applied in supercapacitor displays specific capacitance of 206.3 F g−1 at 1 A ⋅ g−1 and maintains cycling stability with 80 % after 3000 cycles. The excellent electrochemical properties should be attributed to N, F co‐doping into this Co‐based phosphate, which effectively modulates its electronic structure. In addition, its amorphous structure provides more active sites; moreover, its mesoporous structure should be beneficial to mass transfer and electrolyte diffusion.

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Metal organic framework (MOF)-based micro/nanoscaled materials for heavy metal ions removal: The cutting-edge study on designs, synthesis, and applications

Cited by 243 publications

References 199 publications

Peptide-Mediated Synthesis of Zeolitic Imidazolate Framework-8: Effect of Molecular Hydrophobicity, Charge Number and Charge Location

Peptide-Mediated Synthesis of Zeolitic Imidazolate Framework-8: Effect of Molecular Hydrophobicity, Charge Number and Charge Location

Metal–Organic Frameworks (MOFs) Based Analytical Techniques for Food Safety Evaluation

Rational Construction of a N, F Co‐doped Mesoporous Cobalt Phosphate with Rich‐Oxygen Vacancies for Oxygen Evolution Reaction and Supercapacitors

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