An investigation on the adsorption and removal performance of a carboxymethylcellulose-based 4-aminophenazone@MWCNT nanocomposite against crystal violet and brilliant green dyes

Abstract

The adsorption and removal performance of CMC-based 4-aminophenazone and doped MWCNTs NC was investigated CV and BG dyes. The results demonstrate the excellent potential of A-PH-CMC/MWCNTs nanocomposites as a material for CV and BG dye removal.

ZnO@ activated carbon derived from wood sawdust as adsorbent for removal of methyl red and methyl orange from aqueous solutions

“…10 a,b, the removal efficiency of MR and MO dyes is enhanced by increasing the temperature from 30 to 80 °C. This indicates that the adsorption mechanism is endothermic 45 . The related thermodynamic parameters, such as the change in Gibbs free energy ( ), enthalpy ( ), and entropy ( ) were estimated at different temperatures (303–353 K) by applying Van't Hoff plots 45 .…”

“…This indicates that the adsorption mechanism is endothermic 45 . The related thermodynamic parameters, such as the change in Gibbs free energy ( ), enthalpy ( ), and entropy ( ) were estimated at different temperatures (303–353 K) by applying Van't Hoff plots 45 . This parameter could be used to explore either exothermic or endothermic spontaneous adsorption activities, as well as the degree of the disorder.…”

Exploitation of expired cellulose biopolymers as hydrochars for capturing emerging contaminants from water

“…That latter value was subsequently substituted in eqn S3 and S4 in the ESI † to determine the percent removal and equilibrium adsorption capacity q e , respectively. 22,23 Kinetic modeling was also investigated using pseudo-rstorder (eqn S5 in ESI †), 24 pseudo-second-order (eqn S6 in ESI †) 25 and intra-particle diffusion models (eqn S7 in ESI †). 26 To predict equilibrium parameters, Freundlich (eqn S8 in ESI †) and Langmuir (eqn S9 in ESI †) isotherms were plotted.…”

Old dye safranine as an organic photocatalyst for the synthesis of substituted quinazolinones

“…Due to its vibrant red colour even at low concentrations, safranine is widely used in various industrial products such as textiles, paper, and cosmetics. 1,2 Additionally, safranine has demonstrated diverse applications in scientific research, including its use in biological staining, 3 volumetric analysis, 4 electrochemical sensors, 5 biosensors, 6 antimicrobial materials, 7 digital light processing 3D printing, 8 nanoconjugate reagents, 9 cell imaging and anticancer drug delivery. 10…”

“…Due to its vibrant red colour even at low concentrations, safranine is widely used in various industrial products such as textiles, paper, and cosmetics. 1,2 Additionally, safranine has demonstrated diverse applications in scientific research, including its use in biological staining, 3 volumetric analysis, 4 electrochemical sensors, 5 biosensors, 6 antimicrobial materials, 7 digital light processing 3D printing, 8 nanoconjugate reagents, 9 cell imaging and anticancer drug delivery. 10 Recently, the structural similarity between the phenazine moiety in safranine and the isoalloxazine headgroup in riboflavin, an established photosensitive fluorochrome, 11 has inspired researchers to investigate its potential application in photoredox catalysts 12,13 (Fig.…”