scholarly journals Solvent-Free Synthesis of Iron-Based Metal-Organic Frameworks (MOFs) as Slow-Release Fertilizers

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 561
Author(s):  
Yaxiao Du ◽  
Xuebin Xu ◽  
Fei Ma ◽  
Changwen Du
Keyword(s):  
Slow Release ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Compound I ◽  
Hydrothermal Conditions ◽  
Breakdown Spectroscopy ◽  
Slow Release Fertilizer ◽  
Slow Release Fertilizers ◽  
Metal Organic ◽  
Release Profiles

Metal-organic frameworks (MOFs) were usually synthesized in hydrothermal conditions; in this study, a more energy-saving, easier to control, and solvent-free mechanochemical method was firstly applied to synthesize MOFs with varied reactants as slow release fertilizer, and the components and structures were characterized by X-ray diffraction (XRD), Fourier transform infrared total attenuated reflectance (FTIR-ATR), and laser-induced breakdown spectroscopy (LIBS). Results showed that three MOFs (compounds I, II, and III) were obtained, the MOFs were confirmed as oxalate phosphate oxalate frameworks (OPA-MOF), and ions were adsorbed between layers that contributed to the contents, while urea molecules mainly impacted the structure. The elemental compositions significantly varied among the three compounds; compound I showed the highest content of N (4.91%), P (15.71%), and Fe (18.60%), compound III indicated the highest content of C (6.52%) and K (12.59%), while the contents of C, K, P, and Fe in compound II were in the medium range. Similar release profiles of Fe and P were found among the three MOFs, and the release rates of nutrients were demonstrated as the order of N > K > P > Fe. The compositions and release profiles demonstrated potential application of MOFs as a novel slow-release fertilizer.

scholarly journals Novel Applications for Oxalate-Phosphate-Amine Metal-Organic-Frameworks (OPA-MOFs): Can an Iron-Based OPA-MOF Be Used as Slow-Release Fertilizer?

PLoS ONE ◽  
2015 ◽  
Vol 10 (12) ◽  
pp. e0144169 ◽  
Author(s):  
Manuela Anstoetz ◽  
Terry J. Rose ◽  
Malcolm W. Clark ◽  
Lachlan H. Yee ◽  
Carolyn A. Raymond ◽  
...  
Keyword(s):  
Slow Release ◽  
Metal Organic Frameworks ◽  
Slow Release Fertilizer ◽  
Metal Organic ◽  
Iron Based ◽  
Novel Applications

scholarly journals A Green, Solvent-Free Route to Functionalised Metal-Organic Frameworks with UiO-66 Topology

2019 ◽  
Author(s):  
Roberto D’Amato ◽  
Fabio Marmottini ◽  
Matthew J. McPherson ◽  
Marco Taddei ◽  
Ferdinando Costantino
Keyword(s):  
Ball Mill ◽  
Room Temperature ◽  
Small Volume ◽  
Metal Organic Frameworks ◽  
Scale Up ◽  
Solvent Free ◽  
High Yield ◽  
Green Solvent ◽  
Hydrothermal Conditions ◽  
Metal Organic

<p>We report a solvent-free procedure for the high-yield synthesis of metal-organic frameworks of UiO-66 topology starting from a range of commercial Zr(IV) precursors and various substituted dicarboxylic linkers. The syntheses are carried out by simply grinding the reagents in the presence of a small volume of acetic acid as modulator, followed by incubation at either room temperature or 120 °C. Use of a ball mill for the grinding step is demonstrated to enable facile scale up of the synthesis. High acidity of the linker is found to be a crucial factor in affording materials of quality comparable to that of products obtained in solvo- or hydrothermal conditions.</p>

scholarly journals A Green, Solvent-Free Route to Functionalised Metal-Organic Frameworks with UiO-66 Topology

2019 ◽  
Author(s):  
Roberto D’Amato ◽  
Fabio Marmottini ◽  
Matthew J. McPherson ◽  
Marco Taddei ◽  
Ferdinando Costantino
Keyword(s):  
Ball Mill ◽  
Room Temperature ◽  
Small Volume ◽  
Metal Organic Frameworks ◽  
Scale Up ◽  
Solvent Free ◽  
High Yield ◽  
Green Solvent ◽  
Hydrothermal Conditions ◽  
Metal Organic

<p>We report a solvent-free procedure for the high-yield synthesis of metal-organic frameworks of UiO-66 topology starting from a range of commercial Zr(IV) precursors and various substituted dicarboxylic linkers. The syntheses are carried out by simply grinding the reagents in the presence of a small volume of acetic acid as modulator, followed by incubation at either room temperature or 120 °C. Use of a ball mill for the grinding step is demonstrated to enable facile scale up of the synthesis. High acidity of the linker is found to be a crucial factor in affording materials of quality comparable to that of products obtained in solvo- or hydrothermal conditions.</p>

Facile Fabrication of a Potential Slow-Release Fertilizer Based on Oxalate-Phosphate-Amine Metal-Organic Frameworks (OPA-MOFs)

2018 ◽  
Vol 936 ◽  
pp. 14-19 ◽  
Author(s):  
Ken Aldren S. Usman ◽  
Salvador C. Jr. Buenviaje ◽  
Yasmin de Guzman Edañol ◽  
Marlon T. Conato ◽  
Leon M. Payawan Jr.
Keyword(s):  
Slow Release ◽  
Metal Organic Frameworks ◽  
Nitrogen And Phosphorus ◽  
Structure Directing Agent ◽  
Slow Release Fertilizer ◽  
N Release ◽  
Fertilizer Release ◽  
Metal Organic ◽  
Facile Fabrication ◽  
Fertilizer Material

This work demonstrates a simple, reproducible and scalable method of producing a potential slow-release fertilizer material. In this study, oxalate-phosphate-amine metal organic frameworks (OPA-MOFs) powder was synthesized from the hydrothermal treatment of ferric chloride (FeCl3•6H2O), orthophosphoric acid (H3PO4), oxalic acid dihydrate (H2C2O4•2H2O), and a common fertilizer, urea (CO(NH2)2). Being a structure directing agent (SDA)-type of MOF, the material is expected to slowly release urea via cation exchange, and eventually trigger the collapse of the framework, thus resulting to the subsequent release of the phosphates and iron-oxalate complexes. Elemental analysis revealed that the synthesized samples contains a promising amount of incorporated nitrogen and phosphorus. In this particular study, increasing in the amount of urea during the synthesis however revealed minimal change in the %N in the final product which tells us that maximum loading has already been achieved. P and N release experiments shall still be done bothinvitroand in actual soil samples to monitor the release delivery kinetics and efficiency of the OPA-MOFs for fertilizer release applications.

A direct solvent-free conversion approach to prepare mixed-metal metal–organic frameworks from doped metal oxides

2021 ◽  
Vol 57 (29) ◽  
pp. 3587-3590
Author(s):  
Beili Yi ◽  
Haojie Zhao ◽  
Yue Zhang ◽  
Xiaomeng Si ◽  
Guanqun Zhang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Mixed Metal ◽  
Synthesis Strategy ◽  
Metal Metal ◽  
Metal Organic

We propose a novel solvent-free conversion strategy of Pt–ZnO to Pt-ZIF-8. This synthesis strategy may facilitate the discovery of MMOFs that have not been reported previously.

Structural Design of Mn-Metal–Organic Frameworks toward Highly Efficient Solvent-Free Cycloaddition of CO2

2021 ◽  
Author(s):  
Haonan Lin ◽  
Cheng-Hua Deng ◽  
Xiaohang Qiu ◽  
Xiao Liu ◽  
Jian-Gong Ma ◽  
...  
Keyword(s):  
Structural Design ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Highly Efficient ◽  
Metal Organic

Two dimethylphenyl imidazole dicarboxylate-based lanthanide metal–organic frameworks for luminescence sensing of benzaldehyde

2015 ◽  
Vol 44 (9) ◽  
pp. 4362-4369 ◽  
Author(s):  
Bingbing Shi ◽  
Yuanhao Zhong ◽  
Lili Guo ◽  
Gang Li
Keyword(s):  
Dicarboxylic Acid ◽  
Metal Organic Frameworks ◽  
Hydrothermal Conditions ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Imidazole Dicarboxylate

Two novel dimethylphenyl imidazole dicarboxylate-based lanthanide(iii)-organic frameworks, [Ln(H2DMPhIDC)3(H3DMPhIDC)]n (Ln = Eu (1), Tb (2); H3DMPhIDC = 2-(3,4-dimethylphenyl)-1H-imidazole-4,5-dicarboxylic acid) have been synthesized under hydrothermal conditions.

scholarly journals Mechanochemical and solvent-free assembly of zirconium-based metal–organic frameworks

2016 ◽  
Vol 52 (10) ◽  
pp. 2133-2136 ◽  
Author(s):  
Krunoslav Užarević ◽  
Timothy C. Wang ◽  
Su-Young Moon ◽  
Athena M. Fidelli ◽  
Joseph T. Hupp ◽  
...  
Keyword(s):  
Solid State ◽  
High Temperatures ◽  
Self Assembly ◽  
Metal Organic Frameworks ◽  
Accelerated Aging ◽  
Solvent Free ◽  
Catalytically Active ◽  
Metal Organic ◽  
Strong Acids ◽  
Zirconium Metal

Mechanochemistry and accelerated aging are new routes to zirconium metal–organic frameworks, yielding UiO-66 and catalytically active UiO-66-NH2 accessible on the gram scale through mild solid-state self-assembly, without strong acids, high temperatures or excess reactants.

scholarly journals Investigation of the Preparation and Reactivity of Metal-Organic Frameworks of Cerium and Pyridine-2,4,6-Tricarboxylate

2021 ◽  
Author(s):  
Juliana Fonseca de Lima ◽  
Fernanda V.S. Moreno ◽  
Bruno A.T. Menezes ◽  
Jader da Silva Barbosa ◽  
Matthew C. Waddington ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Hydrothermal Conditions ◽  
Metal Organic

The synthesis of three coordination polymers of cerium(III) and the ligand pyridine-2,4,6-tricarboxylate (PTC) is reported. Two of the materials crystallise under hydrothermal conditions at 180 °C, with [Ce(PTC)(H2O)2]·1.5H2O, (1), being...

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