Ultrafast and nanomolar level detection of H2S in aqueous medium using a functionalized UiO-66 metal-organic framework based fluorescent chemosensor

2021 ◽  
Author(s):  
Subhrajyoti Ghosh ◽  
Shyam Biswas
Keyword(s):  
Aqueous Medium ◽  
Rapid Detection ◽  
Metal Organic Framework ◽  
Fluorescent Chemosensor ◽  
Metal Organic ◽  
Organic Framework

Here, we present a 4-nitrophenyl anchored Zr-UiO-66 MOF (MOF = metal-organic framework) and its applications towards the selective, sensitive and rapid detection of H2S both in aqueous medium and vapour...

scholarly journals Selective Detection of nano-molar range Noxious Anions in Water by a Luminescent Metal-Organic Framework

2021 ◽  
Author(s):  
Sudip Kumar Mondal ◽  
Partha Mahata ◽  
Pooja Daga ◽  
Sourav Sarkar ◽  
Prakash Majee ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Metal Organic Framework ◽  
Selective Detection ◽  
Recognition Ability ◽  
Oxo Anions ◽  
Metal Organic ◽  
Organic Framework

A new metal-organic framework (MOF) showed excellent recognition ability towards five toxic oxo-anions viz. arsenate (HAsO42-), phosphate (PO43-), permanganate (MnO4-), chromate (CrO42-) and dichromate (Cr2O72-) in aqueous medium upon irradiation...

scholarly journals Experimental and Modeling of Dicamba Adsorption in Aqueous Medium Using MIL-101(Cr) Metal-Organic Framework

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 419
Author(s):  
Hamza Ahmad Isiyaka ◽  
Khairulazhar Jumbri ◽  
Nonni Soraya Sambudi ◽  
Jun Wei Lim ◽  
Bahruddin Saad ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Adsorption Capacity ◽  
Environmental Concern ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
Data Matrix ◽  
Adsorption Parameters ◽  
Metal Organic ◽  
Organic Framework

Drift deposition of emerging and carcinogenic contaminant dicamba (3,6-dichloro-2-methoxy benzoic acid) has become a major health and environmental concern. Effective removal of dicamba in aqueous medium becomes imperative. This study investigates the adsorption of a promising adsorbent, MIL-101(Cr) metal-organic framework (MOF), for the removal of dicamba in aqueous solution. The adsorbent was hydrothermally synthesized and characterized using N2 adsorption-desorption isotherms, Brunauer, Emmett and Teller (BET), powdered X-ray diffraction (XRD), Fourier Transformed Infrared (FTIR) and field emission scanning electron microscopy (FESEM). Adsorption models such as kinetics, isotherms and thermodynamics were studied to understand details of the adsorption process. The significance and optimization of the data matrix, as well as the multivariate interaction of the adsorption parameters, were determined using response surface methodology (RSM). RSM and artificial neural network (ANN) were used to predict the adsorption capacity. In each of the experimental adsorption conditions used, the ANN gave a better prediction with minimal error than the RSM model. The MIL-101(Cr) adsorbent was recycled six times to determine the possibility of reuse. The results show that MIL-101(Cr) is a very promising adsorbent, in particular due to the high surface area (1439 m2 g−1), rapid equilibration (~25 min), high adsorption capacity (237.384 mg g−1) and high removal efficiency of 99.432%.

Luminescent metal–organic framework-based phosphor for the detection of toxic oxoanions in an aqueous medium

2020 ◽  
Vol 49 (3) ◽  
pp. 829-840 ◽  
Author(s):  
Debal Kanti Singha ◽  
Prakash Majee ◽  
Sayani Hui ◽  
Sudip Kumar Mondal ◽  
Partha Mahata
Keyword(s):  
Aqueous Medium ◽  
Metal Organic Framework ◽  
Phosphate Ions ◽  
Metal Organic ◽  
Organic Framework

Compound 1 has been utilized for the luminescence based visible detection of chromate, permanganate and phosphate ions in aqueous medium.

A novel electrochemical sensor based on a nickel-metal organic framework for efficient electrocatalytic oxidation and rapid detection of lactate

2018 ◽  
Vol 42 (14) ◽  
pp. 11839-11846 ◽  
Author(s):  
Perumal Manivel ◽  
Vembu Suryanarayanan ◽  
Noel Nesakumar ◽  
David Velayutham ◽  
Kanagaraj Madasamy ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Rapid Detection ◽  
Electrocatalytic Oxidation ◽  
Metal Organic Framework ◽  
Cow Milk ◽  
Nickel Metal ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

A novel Pt/Ni-MOF electrode was fabricated for the determination of lactate in cow-milk for the first time.

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