Topics

Devising Chemically Robust and Cationic Ni(II)-MOF with Nitrogen-Rich Micropores for Moisture Tolerant CO Capture: Highly Regenerative and Ultra-Fast Colorimetric Sensor for TNP and Multiple Oxo-Anions in Water with Theoretical Revelation.

08:00 EDT 4th October 2019 | BioPortfolio

Summary of "Devising Chemically Robust and Cationic Ni(II)-MOF with Nitrogen-Rich Micropores for Moisture Tolerant CO Capture: Highly Regenerative and Ultra-Fast Colorimetric Sensor for TNP and Multiple Oxo-Anions in Water with Theoretical Revelation."

Metal-organic frameworks (MOFs) show distinctive superiority for carbon dioxide (CO) capture and luminescent sensing of toxic pollutants over other materials, where combination of both these properties together with improvement of hydrolytic stability and pore functionality is critical to environmental remediation applications. The Ni(II)-framework, [Ni(µ-OH)()()](NO)⋅6DMA⋅6MeOH () ( = 4,4',4''-(1H-imidazole-2,4,5-triyl)tripyridine, H = azobenzene-4,4'-dicarboxylic acid, DMA = Dimethylacetamide, CSMCRI = Central Salt & Marine Chemicals Research Institute), encompassing cationic [Ni(μ-OH)(CO)] SBUs, is solvothermally synthesized from nitrogen-rich and highly fluorescent organic struts. The non-interpenetrated structure, containing free nitrogen atom affixed microporous channels, is stable in organic solvents, and weakly basic and acidic aqueous solutions. The activated MOF () exhibits strong CO-framework interaction, and extremely selective CO adsorption over N (292.5) and CH (11.7). Importantly, water vapour exposure does not affect the surface area and/or multiple CO uptake-release cycles, signifying potential of the porous structure for long-term use under humid conditions. Aqueous phase sensing studies illustrate extremely specific and ultra-fast detection of explosive 2,4,6-trinitrophenol (TNP) via remarkable fluorescence quenching (K = 1.3×10 M), with 0.25 ppm limit of detection (LOD). Furthermore, serves as unique luminescent probe for highly discriminative and quick responsive detection of three noxious oxo-anions (CrO, CrO, MnO) in water via noteworthy turn-off responses, and extreme low LODs (Cr
O:
0.9; Cr
O:
0.29; Mn
O:
0.25 ppm). It is imperative to stress the outstanding reusability of the MOF towards multicyclic sensing of all four major water contaminants, alongside visible colorimetric changes upon individual analyte detection. Mechanistic insights in light of electron transfer route, together with density functional theory calculations portrays the influence of pore functionalization in framework-analyte interactions, including alternation in energy levels, where varying degree of contribution of energy transfer explicitly authenticates high quenching of the material.

Affiliation

Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252
Pages:

Links

DeepDyve research library

PubMed Articles [7549 Associated PubMed Articles listed on BioPortfolio]

CNO: Thermally Stable Nitrogen-Rich Inner Bis(diazonium) Zwitterions.

Two nitrogen-rich inner bis(diazonium) salts, the 4,4'-dinitro-5,5'-diazo-2,2'-bisimidazole () and the 4,4'-dinitro-5,5'-diazo-3,3'-bispyrazole () zwitterions, are described. Compound was synthesized...

Carbon Nitride Transforms into a High Lithium-Storage Capacity Nitrogen-Rich Carbon.

We describe here the metal-templated transformation of carbon nitride (C3N4) into nitrogen-containing carbons as anodes for Li-ion batteries (LIBs). Changing the template from the carbon- and nitrogen...

Sulfur Vacancy-rich O-doped 1T-MoS2 Nanosheets for Exceptional Photocatalytic Nitrogen Fixation over CdS.

Here, we reported that sulfur vacancy-rich O-doped 1T-MoS2 nanosheets (denoted as SV-1T-MoS2) can surpass the activity of Pt as cocatalysts to assist in the photocatalytic nitrogen fixation of CdS nan...

Pore structure regulation of hard carbon: Towards fast and high-capacity sodium-ion storage.

Hard carbon is regarded as one of the most promising anode material for sodium-ion batteries in virtue of the low cost and stable framework. However, the correlation between pore structures of hard ca...

Dual active sites of the Co2N and single-atom Co-N4 embedded in nitrogen-Rich nanocarbons: a robust electrocatalyst for oxygen reduction reactions.

It is of great significance in developing low-cost, highly efficient and durable non-precious-metal (NPM) electrocatalysts for the oxygen reduction reaction (ORR). Herein, we report an ingenious two-s...

Clinical Trials [1512 Associated Clinical Trials listed on BioPortfolio]

Cryogenic Preservation of Spermatozoa

The reference technique for the conservation of gametes is storage in liquid nitrogen but new vats of nitrogen vapor (storage over liquid nitrogen) or in dry phase (storage in an insulated...

Eosinophilic Cationic Protein as a Biomarker in Diagnosis of Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Chronic obstructive pulmonary disease is a type of obstructive lung disease characterized by long-term breathing problems and poor airflow. It is changed to acute exacerbation of Chronic o...

The Impact of Low Calorie and Low Nitrogen Parenteral Nutrition Support on the Clinical Outcome of Postoperative Patients

The study is designed to investigate the influence of parenteral nutrition (PN) with low nitrogen and calorie supply on the clinical outcome of patients after an operation compared to that...

Metabonomics to Investigate Effects of Healthy Diets on Blood Pressure: the OmniHeart Study

To compare the urinary metabolomes on individuals undergone three different healthy diets--a carbohydrate-rich diet, a protein-rich diet, or a diet rich in unsaturated fat.

Virtual Environment With Biofeedback to Promote Awareness of Relapse Risk Among Chemically Dependent Individuals

Anxiety is one of the major influences on relapse and substance abuse treatment dropout. Chemically dependent individuals need to be aware of their emotional state in situations that jeopa...

Medical and Biotech [MESH] Definitions

A group of small, histidine-rich, cationic peptides in human SALIVA which are antibacterial and antifungal.

One of several basic proteins released from EOSINOPHIL cytoplasmic granules. Eosinophil cationic protein is a 21-kDa cytotoxic peptide with a pI of 10.9. Although eosinophil cationic protein is considered a member of the RNAse A superfamily of proteins, it has only limited RNAse activity.

Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).

Stable nitrogen atoms that have the same atomic number as the element nitrogen, but differ in atomic weight. N-15 is a stable nitrogen isotope.

The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.

Quick Search


DeepDyve research library

Relevant Topics

Biotechnology Business
Alliances Astrazeneca Bioethics Boehringer Clinical Research Organization Collaborations GSK Johnson & Johnson Lilly Merck Mergers and Acquisitions Nexium Novartis Pfizer Roche Sanofi ...

Clinical Research Organization
Contract Research Organization (CRO) provide research services outsourced on a contract basis to the pharmaceutical, biotechnology, healthcare and medical device industries: biopharmaceutical development biologic assay development commercial...

Stress
Stress is caused by your perception of situations around you and then the reaction of your body to them. The automatic stress response to unexpected events is known as 'fight or flight'. Discovered by Walter Cannon in 1932, it is the release of h...


Searches Linking to this Article