Linking defects, hierarchical porosity generation and desalination performance in metal-organic frameworks

Chemical Science
Weibin LiangVicki Chen

Abstract

Composite membranes with defective metal-organic frameworks (MOFs) connect the emerging fields of MOF topological modification, MOF-polymer interfacial engineering and composite material functionalization. Although defective MOFs can be fabricated via thermal or chemical treatment, the relationship between hierarchical MOF structure and their performance in a polymeric membrane matrix has so far not been investigated. Here we show how a modulator fumarate-based MIL-53(Al) microwave synthesis process results in defective MOFs. This ligand replacement process leads to materials with hierarchical porosity, which creates a higher mesopore volume and Brønsted acidity without compromising the crystalline structure and pH stability. Compared with stoichiometric ratios, increasing the reaction time leads to more effective defect generation. The subsequent incorporation of defective MOFs into polyvinyl alcohol pervaporation membranes can effectively promote the fresh water productivity in concentrated brine treatment, with salt rejection of >99.999%. The membranes also have good long-term operational stability with effective antifouling behavior. We provide evidence that topological engineering of the MOF surface is related to their phy...Continue Reading

References

Mar 28, 2008·The Journal of Physical Chemistry. a·Jos Oomens, Jeffrey D Steill
Nov 30, 2011·Journal of the American Chemical Society·Tae-Hong ParkAdam J Matzger
Jun 13, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·T Grant GloverMatthew A Browe
Jul 24, 2013·Journal of the American Chemical Society·Frederik VermoorteleDirk E De Vos
Feb 7, 2015·Angewandte Chemie·Elsa AlvarezChristian Serre
Mar 17, 2015·Nature Materials·Joseph E MondlochOmar K Farha
Apr 14, 2015·Physical Chemistry Chemical Physics : PCCP·Matthew J CliffeAndrew L Goodwin
Jun 4, 2015·Angewandte Chemie·Zhenlan FangRoland A Fischer
Jun 18, 2015·Chemical Communications : Chem Comm·Weibin LiangDeanna M D'Alessandro
Aug 14, 2015·The Journal of Physical Chemistry Letters·David S Sholl, Ryan P Lively
Nov 20, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·J CanivetD Farrusseng
Jan 7, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·A W ThorntonF-X Coudert
Feb 2, 2016·Journal of Environmental Quality·Kristin A FisherBruce R James
Feb 16, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Weibin LiangRavichandar Babarao
Dec 21, 2016·Nature Chemistry·Thomas D BennettFrançois-Xavier Coudert
Mar 28, 2017·Journal of the American Chemical Society·Matthew J CliffeClare P Grey
May 30, 2017·Chemical Science·Bart BuekenThomas D Bennett
Jan 1, 2016·Chemical Science·Pascal G YotGuillaume Maurin

❮ Previous
Next ❯

Citations

Feb 12, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Niels TannertChristoph Janiak
Mar 14, 2020·Chemical Communications : Chem Comm·Rijia LinVicki Chen
Jun 20, 2020·Angewandte Chemie·Jingwei HouLianzhou Wang
Mar 16, 2021·Advanced Science·Anjaiah Nalaparaju, Jianwen Jiang
Mar 23, 2021·Inorganic Chemistry·Nicholas D ShepherdDeanna M D'Alessandro
Jun 25, 2021·Chemical Science·Isabel Abánades LázaroCarlos Martí-Gastaldo
Aug 4, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Isabel Abánades LázaroFrancisco G Cirujano
Jun 20, 2020·ACS Applied Materials & Interfaces·Yi HuangKrista S Walton
Jan 3, 2020·Chemical Reviews·Mark KalajSeth M Cohen

❮ Previous
Next ❯

Methods Mentioned

BETA
infrared spectroscopy
X-ray
scanning electron microscopy

Software Mentioned

Photoshop
Cinema
Avizo
GSAS
Maxon
RunScript

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved