Layer-by-Layer Growth Control of Metal–Organic Framework Thin Films Assembled on Polymer Films

2020 ◽  
Vol 12 (45) ◽  
pp. 50784-50792
Author(s):  
Hiroaki Ohara ◽  
Shunsuke Yamamoto ◽  
Daiki Kuzuhara ◽  
Tomoyuki Koganezawa ◽  
Hidetoshi Oikawa ◽  
...  
Keyword(s):  
Thin Films ◽  
Polymer Films ◽  
Metal Organic Framework ◽  
Growth Control ◽  
Layer Growth ◽  
Layer By Layer ◽  
Metal Organic ◽  
Organic Framework

Metal-organic framework (MOF) composites for photodegradation of hazardous organic materials

2021 ◽  
Vol 02 ◽  
Author(s):  
Xinxin Liu ◽  
Jiaqing Ren ◽  
Jiaqi Fang ◽  
An Pan ◽  
Nianqiao Qin ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Metal Organic Framework ◽  
Stable Process ◽  
Layer Growth ◽  
Thermal Method ◽  
Layer By Layer ◽  
Wide Range ◽  
Metal Organic ◽  
Organic Framework

: Photocatalytic degradation is an energy-efficient, cost-effective, and stable process that has a wide-range of applications. It is considered a promising method for the removal of organic pollutants. As a new type of porous materials, Metal-organic framework (MOF) composites have been proven to be an ideal catalyst for the degradation of organic pollutants due to their small size and large specific surface area. In this review, several common preparation methods of MOF composites are evaluated：microwave synthesis, solvent-thermal method, electrochemical method and layer by layer growth method. The degradation effects of MOF composites on different organic pollutants are summarized, and the excellent photocatalytic performances of some MOF composites are demonstrated. Finally, the prospect of photocatalytic degradation of organic pollutants by MOF composites is examined, and the challenges of further development of MOF composites are discussed.

Enhanced properties of metal–organic framework thin films fabricated via a coordination modulation-controlled layer-by-layer process

2017 ◽  
Vol 5 (26) ◽  
pp. 13665-13673 ◽  
Author(s):  
Suttipong Wannapaiboon ◽  
Kenji Sumida ◽  
Katharina Dilchert ◽  
Min Tu ◽  
Susumu Kitagawa ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Film Properties ◽  
Metal Organic ◽  
Enhanced Properties ◽  
P Addition ◽  
Organic Framework

Addition of a modulator in the LPE process enhances MOF thin film properties by boosting their crystallinity, orientation uniformity, and adsorption capacity.

scholarly journals Electrostatic Design of Polar Metal–Organic Framework Thin Films

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2420
Author(s):  
Giulia Nascimbeni ◽  
Christof Wöll ◽  
Egbert Zojer
Keyword(s):  
Thin Films ◽  
Electrostatic Potential ◽  
Energy Gap ◽  
Dipole Moments ◽  
Metal Organic Framework ◽  
Solid Substrate ◽  
Layer Growth ◽  
Layer By Layer ◽  
Metal Organic ◽  
Linker Molecules

In recent years, optical and electronic properties of metal–organic frameworks (MOFs) have increasingly shifted into the focus of interest of the scientific community. Here, we discuss a strategy for conveniently tuning these properties through electrostatic design. More specifically, based on quantum-mechanical simulations, we suggest an approach for creating a gradient of the electrostatic potential within a MOF thin film, exploiting collective electrostatic effects. With a suitable orientation of polar apical linkers, the resulting non-centrosymmetric packing results in an energy staircase of the frontier electronic states reminiscent of the situation in a pin-photodiode. The observed one dimensional gradient of the electrostatic potential causes a closure of the global energy gap and also shifts core-level energies by an amount equaling the size of the original band gap. The realization of such assemblies could be based on so-called pillared layer MOFs fabricated in an oriented fashion on a solid substrate employing layer by layer growth techniques. In this context, the simulations provide guidelines regarding the design of the polar apical linker molecules that would allow the realization of MOF thin films with the (vast majority of the) molecular dipole moments pointing in the same direction.

scholarly journals Comparison of Fabrication Methods of Metal-Organic Framework Optical Thin Films

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 676 ◽  
Author(s):  
Yan Huang ◽  
Cheng-an Tao ◽  
Rui Chen ◽  
Liping Sheng ◽  
Jianfang Wang
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Dip Coating ◽  
Layer Growth ◽  
Layer By Layer ◽  
Active Components ◽  
Growth Method ◽  
Metal Organic ◽  
University Of Oslo

Homogeneous metal-organic frameworks (MOFs)-based optical thin films have attracted increasing attention, since they can potentially be used as active components in optical/opt-electrical devices, and how to fabricate MOF thin films with high quality is the premise of practically using them. Herein, five fabrication methods of MOF films are systematically investigated and compared from the aspects of appearance, reflectivity, micro-morphology, surface roughness, and optical properties of the films. The famous robust Zr-based MOF, UiO-66 (UiO = University of Oslo) is chosen as a model, and the five methods are spin-coating, dip-coating, self-assembly, direct growth, and the stepwise layer by layer growth method. This study provides fundamental support for the application of MOFs in the optical field.

Conformal and highly adsorptive metal–organic framework thin films via layer-by-layer growth on ALD-coated fiber mats

2015 ◽  
Vol 3 (4) ◽  
pp. 1458-1464 ◽  
Author(s):  
Junjie Zhao ◽  
Bo Gong ◽  
William T. Nunn ◽  
Paul C. Lemaire ◽  
Eric C. Stevens ◽  
...  
Keyword(s):  
Thin Films ◽  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
Layer Growth ◽  
Layer By Layer ◽  
High Adsorption ◽  
Fiber Mats ◽  
Coated Fiber ◽  
Metal Organic ◽  
High Adsorption Capacity

Fiber@ALD@MOF structures fabricated via ALD and layer-by-layer MOF synthesis show good conformality and high adsorption capacity.

Post-assembly transformations of porphyrin-containing metal–organic framework (MOF) films fabricated via automated layer-by-layer coordination

2015 ◽  
Vol 51 (1) ◽  
pp. 85-88 ◽  
Author(s):  
Monica C. So ◽  
M. Hassan Beyzavi ◽  
Rohan Sawhney ◽  
Osama Shekhah ◽  
Mohamed Eddaoudi ◽  
...  
Keyword(s):  
Thin Films ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Metal Organic ◽  
Linker Exchange ◽  
Organic Framework

Solvent-assisted linker exchange and post-assembly linker metalation converts existing metal–organic framework (MOF) thin films into new or modified ones.

An Organic Guest Molecule Induced Ultrafast Breathing of Epitaxially Grown Metal-Organic Framework on Self-Assembled Monolayer

2021 ◽  
Author(s):  
Purna Chandra Rao ◽  
Mani Prabu ◽  
Younghu Son ◽  
Jiyun Kim ◽  
Minyoung Yoon
Keyword(s):  
Thin Films ◽  
Guest Molecule ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Epitaxial Thin Films ◽  
Two Dimensional ◽  
Self Assembled Monolayer ◽  
Metal Organic ◽  
Self Assembled ◽  
Organic Framework

We report epitaxially grown new two-dimensional metal-organic framework (MOF) thin films on self-assembled monolayer (SAM). We fabricated these epitaxial thin-films using the stepwise layer-by-layer seeding followed by solvothermal treatment. The...

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