Luminescent Triazene-Based Covalent Organic Frameworks Functionalized with Imine and Azine: N2 and H2 Sorption and Efficient Removal of Organic Dye Pollutants

2018 ◽  
Vol 19 (1) ◽  
pp. 362-368 ◽  
Author(s):  
Satyanarayana K. Konavarapu ◽  
Kumar Biradha
Keyword(s):  
Organic Dye ◽  
Covalent Organic Frameworks ◽  
Efficient Removal ◽  
Dye Pollutants

Efficient removal of organic dye pollutants using covalent organic frameworks

AIChE Journal ◽  
2017 ◽  
Vol 63 (8) ◽  
pp. 3470-3478 ◽  
Author(s):  
Xiang Zhu ◽  
Shuhao An ◽  
Yu Liu ◽  
Jun Hu ◽  
Honglai Liu ◽  
...  
Keyword(s):  
Organic Dye ◽  
Covalent Organic Frameworks ◽  
Efficient Removal ◽  
Dye Pollutants

scholarly journals Synthesis of nitrogen doped carbon quantum dots/magnetite nanocomposites for efficient removal of methyl blue dye pollutant from contaminated water

RSC Advances ◽  
2018 ◽  
Vol 8 (16) ◽  
pp. 8528-8536 ◽  
Author(s):  
Aschalew Tadesse ◽  
Dharmasoth RamaDevi ◽  
Mabrahtu Hagos ◽  
GangaRao Battu ◽  
K. Basavaiah
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Organic Dye ◽  
Blue Dye ◽  
Contaminated Water ◽  
Efficient Removal ◽  
Nitrogen Doped ◽  
Carbon Quantum Dot ◽  
Dye Pollutants ◽  
Nitrogen Doped Carbon

Herein, we report the green synthesis of magnetic, nitrogen doped carbon quantum dot/Fe3O4 NPs using aqueous lemon extract for the efficient removal of organic dye pollutants from contaminated water.

Removal of organic dye compounds in water and wastewater samples based on covalent organic frameworks -titanium dioxide before analysis by UV-VIS spectroscopy

2021 ◽  
Vol 4 (01) ◽  
pp. 58-67
Author(s):  
Aida Bahadori Bahadori ◽  
Mehdi Ranjbar Corresponding
Keyword(s):  
Titanium Dioxide ◽  
Carbon Nanostructures ◽  
Solid Phase ◽  
Cost Effective ◽  
Combustion Method ◽  
Organic Dye ◽  
Coefficient Of Determination ◽  
Covalent Organic Frameworks ◽  
Methylene Orange ◽  
Vis Spectroscopy

A simple and rapid microwave-assisted combustion method was developed to synthesize homogenous carbon nanostructures (HCNS). This research presents a new and novel nanocomposite structures for removal of methylene red (2-(4- Dimethylaminophenylazo)benzoic acid), methylene orange (4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt) and methylene blue (3,7-bis(Dimethylamino)phenazathionium chloride)with semi degradation-adsorption solid phase extraction (SDA-SPE) procedure before determination by UV-VIS spectroscopy. A covalent organic frameworks (COFs) with high purity were synthesized and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicated that the self-assembled carbon nanostructures (COFs) synthesized with the cost-effective method which was used as a novel adsorbent for adsorption of dyes after semi-degradation of methylene red, orange and blue (1-5 mg L-1) as an organic dye by titanium dioxide (TiO2) nanoparticales in presence of UV radiation. Based on results, the COFs/TiO2 has good agreement with the Langmuir adsorption isotherm model with favorite coefficient of determination (R2= 0.9989). The recovery of dye removal based on semi-degradation/adsorption of COFs/TiO2 and adsorption of COFs were obtained 98.7% and 48.3%, respectively (RSD less than 5%). The method was validated by spiking dye to real samples.

Template-free synthesis of Fe3O4 nanorod bundles and their highly efficient peroxidase mimetic activity for the degradation of organic dye pollutants with H2O2

2015 ◽  
Vol 39 (10) ◽  
pp. 7759-7762 ◽  
Author(s):  
Diganta Bhuyan ◽  
Sudhir S. Arbuj ◽  
Lakshi Saikia
Keyword(s):  
Crystal Violet ◽  
High Surface ◽  
Volume Ratio ◽  
Organic Dye ◽  
Solar Light ◽  
Highly Efficient ◽  
Dye Pollutants ◽  
Peroxidase Mimetic ◽  
Crystal Violet Dye ◽  
Template Free

The high surface to volume ratio of Fe3O4 nanorods facilitates the excellent activation of H2O2 for the photo-Fenton-like degradation of crystal violet dye under solar light.

Anomalous but massive removal of two organic dye pollutants simultaneously

2016 ◽  
Vol 318 ◽  
pp. 54-60 ◽  
Author(s):  
Zilin Meng ◽  
Yihe Zhang ◽  
Zhilei Zhang ◽  
Qian Zhang ◽  
Paul K. Chu ◽  
...  
Keyword(s):  
Organic Dye ◽  
Dye Pollutants

Low cost and quick time absorption of organic dye pollutants under ambient condition using partially exfoliated graphite

2020 ◽  
Vol 34 ◽  
pp. 101078 ◽  
Author(s):  
J. Mohanraj ◽  
D. Durgalakshmi ◽  
S. Balakumar ◽  
P. Aruna ◽  
S. Ganesan ◽  
...  
Keyword(s):  
Low Cost ◽  
Ambient Condition ◽  
Organic Dye ◽  
Exfoliated Graphite ◽  
Dye Pollutants
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