scholarly journals Synthesis of New Hybrid Structured Magnetite Crosslinked Poly Ionic Liquid for Efficient Removal of Coomassie Brilliant Blue R-250 Dye in Aqueous Medium

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 441
Author(s):  
Abdelrahman O. Ezzat ◽  
Ahmed M. Tawfeek ◽  
Jothi Ramalingam Rajabathar ◽  
Hamad A. Al-Lohedan
Keyword(s):  
Ionic Liquid ◽  
Maleic Anhydride ◽  
Aqueous Solutions ◽  
Brilliant Blue ◽  
Order Kinetic ◽  
Coomassie Brilliant Blue ◽  
Chemical Structures ◽  
Vinyl Pyridine ◽  
Poly Ionic Liquid ◽  
Coomassie Brilliant

In this work, new crosslinked pyridinium poly ionic liquid and its magnetite hybrid structured composite were prepared and applied to remove the toxic dye Coomassie Brilliant Blue (CBB-R250) from aqueous solutions. In this respect, vinyl pyridine, maleic anhydride, and dibromo nonane were used to prepare crosslinked quaternized vinyl pyridinium/maleic anhydride ionic liquid (CQVP-MA). Furthermore, a linear copolymer was prepared by the reaction of vinyl pyridine with bromo nonane followed by its copolymerization with maleic anhydride in order to use it as a capping agent for magnetite nanoparticles. The monodisperse MNPs were incorporated into the crosslinked PIL (CQVP-MA) by ultrasonication to prepare CQVP-MA/Fe3O4 composite to facilitate its recovery using an external magnetic field and enhance its adsorption capacity. The chemical structures, thermal stabilities, zeta potential, particle size, EDS, and SEM of the prepared CQVP-MA and CQVP-MA/Fe3O4 were investigated. Adsorption kinetics, isotherms, and mechanisms of CB-R250 elimination from aqueous solutions using CQVP-MA and CQVP-MA/Fe3O4 were also studied, and the results revealed that the pseudo second-order kinetic model and the Langmuir isotherm model were the most suitable to describe the CBB adsorption from an aqueous solution. The adsorption capacities of CQVP-MA and CQVP-MA/Fe3O4 were found to be 1040 and 1198, respectively, which are more than those for previously reported material in the literature with reasonable stability for five cycles.

scholarly journals Novel Poly(ionic liquid) Augmented Membranes for Unconventional Aqueous Phase Applications in Fractionation of Dyes and Sugar

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2366
Author(s):  
Sandrina DePaz ◽  
Arijit Sengupta ◽  
Yu-Hsuan Chiao ◽  
Sumith Wickramasinghe
Keyword(s):  
Ionic Liquid ◽  
Lone Pair ◽  
Brilliant Blue ◽  
Oh Groups ◽  
X Ray ◽  
Vinyl Pyridine ◽  
Sem Imaging ◽  
Poly Ionic Liquid ◽  
High Degree ◽  
Coomassie Brilliant

Poly(ionic) liquid (PIL) augmented membranes were fabricated through self-polymerization of 2-vinyl pyridine and 4-vinyl pyridine followed by dopamine triggered polymerization and bridging with inert polyamide support. The resulting membranes acquired a positive surface charge with a high degree of hydrophilicity. Fourier transformed Infra-red (FTIR) and Energy dispersive X-ray (EDX) spectroscopic investigation revealed the successful augmentation of PIL surface layer, whereas surface morphology was investigated through scanning electron microscopy (SEM) imaging. This manuscript demonstrates pi electron-induced separation of dyes with the trend in permeability: Coomassie Brilliant Blue G (CBBHG)> Remazol Brilliant Blue R (RBBR)>Eichrome Black T (EBT)> Congo Red (CR). CBBG exhibited extended conjugation over large aromatic domain. RBBR and EBT were associated withtheelectron-donating -NH2 group and electron-withdrawing -NO2 group, respectively, hence pi electron density on aromatic ring varied. The steric repulsion between two pairs of ortho hydrogens (Hs) in biphenyl moieties of CR resulted in deviation of planarity and hence aromaticity leading to the lowest permeability. The sugar fractionation followed the trend: Galactose > Mannose > Fructose > Glucose > Xylose. More hydroxyl (-OH) groups in sugars and their conformational alignment in the same direction, exhibited more lone pair of electrons leading to more interaction with PIL and hence better permeability. Pentose showed poorer permeation than hexose, whereas aldose showed better permeation than ketose.

Total protein determined in human breast milk by use of coomassie brilliant blue and centrifugal analysis.

1989 ◽  
Vol 35 (10) ◽  
pp. 2127-2129 ◽  
Author(s):  
Y Bergqvist ◽  
L Karlsson ◽  
L Fohlin
Keyword(s):  
Breast Milk ◽  
Total Protein ◽  
Brilliant Blue ◽  
Human Breast Milk ◽  
Human Breast ◽  
Simple Method ◽  
Coomassie Brilliant Blue ◽  
Kjeldahl Method ◽  
Coomassie Brilliant

Abstract This simple method of centrifugal analysis for total protein in human breast milk is based on the change in the wavelength of the absorbance maximum of Coomassie Brilliant Blue G-250 when the dye is bound to protein. Within-run and between-day CVs were 3.8% and 4.8%, respectively. Compared with a micro-Kjeldahl method for determination of total nitrogen, the coefficient of correlation was 0.99.

Photocatalysis of Coomassie Brilliant Blue Using Clay Mineral

2016 ◽  
Vol 869 ◽  
pp. 765-767 ◽  
Author(s):  
Layane Rodrigues Almeida ◽  
João Sammy Nery Souza ◽  
Edson Cavalcanti Silva Filho ◽  
Josy Anteveli Osajima
Keyword(s):  
Organic Pollutants ◽  
Uv Light ◽  
Brilliant Blue ◽  
Blue Dye ◽  
Secondary Treatment ◽  
Toxic Compounds ◽  
Coomassie Brilliant Blue ◽  
Kinetics Of ◽  
Coomassie Brilliant ◽  
Photocatalytic Processes

The presence of organic pollutants, which cannot be eliminated by conventional processes of primary and secondary treatment, can be problematic. Photocatalytic processes offer an efficient breakdown of organic pollutants into non-toxic compounds such as CO2 and H2O. This paper proposes the use of the titanium dioxide embedded in palygorskite as a photoactive material in the degradation of cationic dye, Coomassie Brilliant Blue. The system was irradiated using UV light for a maximum time of 120 minutes. The concentration of the dye used was 1.0x10-4 mol L-1 in 0.5 g L-1 of the photoactive material. The kinetics of the system was monitored by UV-Vis spectrophotometry. In 120 minutes of radiation, the process of photocatalysis reduced the initial concentration of the Coomassie Brilliant Blue dye in half.

Synthesis of flake-like bismuth tungstate (Bi2WO6) for photocatalytic degradation of coomassie brilliant blue (CBB)

2017 ◽  
Vol 86 ◽  
pp. 213-217 ◽  
Author(s):  
Naveed A. Shad ◽  
Mehvish Zahoor ◽  
Khizra Bano ◽  
Sadia Z. Bajwa ◽  
Nasir Amin ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Brilliant Blue ◽  
Coomassie Brilliant Blue ◽  
Bismuth Tungstate ◽  
Coomassie Brilliant
Sign in / Sign up

Export Citation Format

Share Document