Removal of Methyl Red, a cationic dye, Acid Blue 113, an anionic dye, from wastewaters using chitin and chitosan: influence of copper ions

2017 ◽  
Vol 73 ◽  
pp. 289-300 ◽  
Author(s):  
Yeşim Sağ Açıkel ◽  
Başak Göze
Keyword(s):  
Copper Ions ◽  
Cationic Dye ◽  
Methyl Red ◽  
Anionic Dye ◽  
Chitin And Chitosan ◽  
Acid Blue 113 ◽  
Acid Blue

scholarly journals Removal of Congo Red and Methyl Red using Low Density Polyethylene-Chitosan Nanoparticles Biocomposite in Single and Binary-component System

2021 ◽  
pp. 307-327
Author(s):  
Oluwatosin Emmanuel Daramola ◽  
Oluwaseun Adekoya Adelaja
Keyword(s):  
Binary System ◽  
Congo Red ◽  
Chitosan Nanoparticles ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Cationic Dye ◽  
Methyl Red ◽  
Component System ◽  
Anionic Dye ◽  
Binary Component

The low density polyethylene-chitosan nanoparticles (LDPE/CHNP) biocomposite was applied as a biosorbent for the adsorption of Congo red (CR) anionic dye and methyl red (MR) a cationic dye an in single and binary system. The effect of parameter pH, contact time, initial concentration, adsorbent dosage and temperature were studied on the two dyes in single and the binary component system. Kinetic studies showed that adsorption on LDPE/CHNP in a single and binary-component system follows pseudo-second order kinetics. The values of CR in single and binary system were gotten to be 0.9996 and 0.9984 respectively, while the values of MR in single and binary system were 0.9994 and 0.9983 respectively. The adsorption equilibrium study was tested with both Langmuir and Freundlich isotherm and the result showed they agree more with Langmuir have an values for CR in single and binary system to be 0.9995 and 0.9991 respectively, while the values of MR in single and binary system were 0.9954 and 0.9983 respectively; which implies that the adsorptions were more of chemisorption than physiosorption reaction. In the single and binary systems, the result reveals that CR had higher adoption efficiency than MR which could be because the chelation between cations and chitosan chains, which decreased the electrostatic interaction between Methyl red and chitosan nanoparticles of the biocomposite. The LDPE/CHNP biocomposite has proved to be an efficient adsorbent for CR (anionic dye) and MR (cationic dye) in single and two-component system which are frequently encountered composition of industrial effluents.

scholarly journals [Copper (II)/Cellulose-Chitosan] Microspheres Complex for Dye Immobilization: Isotherm, Kinetic and Thermodynamic Analysis

2013 ◽  
Vol 8 (3) ◽  
pp. 155892501300800 ◽  
Author(s):  
Mahjoub Jabli ◽  
Faouzi Aloui ◽  
Béchir Ben Hassine
Keyword(s):  
Copper Ions ◽  
Sorption Data ◽  
Freundlich Model ◽  
Adsorption Phenomenon ◽  
Chitosan Microspheres ◽  
Chemical Structures ◽  
Adsorption Capacities ◽  
Intra Particle Diffusion ◽  
Kinetic And Thermodynamic Analysis ◽  
Acid Blue

Considered as ligands due to the presence of donor atoms in their chemical structures, and being also among the major pollutants of water, Eriochrome Black B (Erio), Calmagite (Calma) and Acid Blue 25 (AB25) were successfully immobilized on cellulose-chitosan microspheres loaded with copper ions. Prepared supports were characterized by Fourier Transform Infra-Red (FTIR) spectral study and Thermogravimetic analysis (TGA). The effect of experimental factors during dye immobilization such as pH, contact time, temperature, and initial dye concentration were studied. The experiments demonstrate that the adsorption capacities of dyes on [Cu(II)/cellulose-chitosan] are much higher than the unloaded microspheres. This indicates that these dyes can act as efficient ligands for coordinating metals already involved in [cellulose-chitosan]. At least, in the case of AB25, a 60% of difference in target removal was achieved at equilibrium. The kinetic adsorption fitted well to the intra-particle diffusion model and the corresponding rate constants were obtained. In addition, the interpretation of the equilibrium sorption data complies well with the Freundlich model. The thermodynamic parameters were also determined and the enthalpy change (ΔH&Deg;) was found to be low, between −5.93 and −20.68 Kj.mol-1, indicating that the adsorption phenomenon is exothermic and physical. A probable mechanism of the Dye/Copper(II)/cellulose-chitosan complex is also proposed.

scholarly journals Predicting the degradation potential of Acid blue 113 by different oxidants using quantum chemical analysis

Heliyon ◽  
2019 ◽  
Vol 5 (9) ◽  
pp. e02396 ◽  
Author(s):  
Anam Asghar ◽  
Mustapha Mohammed Bello ◽  
Abdul Aziz Abdul Raman ◽  
Wan Mohd Ashri Wan Daud ◽  
Anantharaj Ramalingam ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Quantum Chemical ◽  
Quantum Chemical Analysis ◽  
Acid Blue 113 ◽  
Acid Blue

Photodegradation of Cationic and Anioic Dyes by pH-Dependent Dispersion of Amphoteric g-C3N4 Nanosheets

2020 ◽  
Vol 20 (10) ◽  
pp. 6215-6221
Author(s):  
Qingmei Zhang ◽  
Aoli Wen ◽  
Guoliang Chen ◽  
Juan Huang ◽  
Xu Zhou ◽  
...  
Keyword(s):  
Ph Value ◽  
Cationic Dye ◽  
Amino Groups ◽  
Anionic Dye ◽  
Chromotrope 2R ◽  
Different Types ◽  
Acidic Conditions ◽  
Ph Dependent

g-C3N4 nanosheets (NSs) were prepared via H2SO4 exfoliation from the bulky g-C3N4 and the photocatalytic (PC) activities were investigated comprehensively using Rodamine B (RhB) and Chromotrope 2R (Ch2R) as candidate pollutants. The results showed that the pH value have important functions in the improvement of photodegradation performance of C3N4 NSs. RhB as cationic dye could be photodegraded more efficiently under acidic conditions while Ch2R as anionic dye was degraded easily in pH ≥ 11 solution. In particular, the Ch2R could be degraded completely within only 30 min in pH = 11 solution. It might be because the amphoteric C3N4 NSs surface with carboxyl and amino groups possessed negative and positive charges in alkaline and acidic conditions, respectively. These results presumably provided a new idea to enhance the pH-dependent photodegradation activity and degrade different types of pollutants selectively by adjusting the pH of amphoteric nanocatalyts.

scholarly journals Decolorization and biodegradation of textile di-azo dye Acid Blue 113 by Pseudomonas stutzeri AK6

3 Biotech ◽  
2020 ◽  
Vol 10 (5) ◽  
Author(s):  
Anjali U. Joshi ◽  
Ankit T. Hinsu ◽  
Rohitkumar J. Kotadiya ◽  
Jalpa K. Rank ◽  
Kavan N. Andharia ◽  
...  
Keyword(s):  
Azo Dye ◽  
Pseudomonas Stutzeri ◽  
Acid Blue 113 ◽  
Acid Blue

scholarly journals Low frequency ultrasound (42 kHz) assisted degradation of Acid Blue 113 in the presence of visible light driven rare earth nanoclusters loaded TiO2 nanophotocatalysts

2014 ◽  
Vol 21 (5) ◽  
pp. 1675-1681 ◽  
Author(s):  
Panneerselvam Sathishkumar ◽  
Ramalinga Viswanathan Mangalaraja ◽  
Oscar Rozas ◽  
Héctor D. Mansilla ◽  
M.A. Gracia-Pinilla ◽  
...  
Keyword(s):  
Rare Earth ◽  
Visible Light ◽  
Low Frequency ◽  
Low Frequency Ultrasound ◽  
Visible Light Driven ◽  
Acid Blue 113 ◽  
Acid Blue ◽  
Frequency Ultrasound

scholarly journals Magnetically recyclable CoFe2O4/ZnO nanocatalysts for the efficient catalytic degradation of Acid Blue 113 under ambient conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (28) ◽  
pp. 16473-16480 ◽  
Author(s):  
S. Krishna ◽  
P. Sathishkumar ◽  
N. Pugazhenthiran ◽  
Kiros Guesh ◽  
R. V. Mangalaraja ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Low Frequency ◽  
Catalytic Degradation ◽  
Ambient Conditions ◽  
Low Frequency Ultrasound ◽  
Ultrasound Assisted ◽  
Acid Blue 113 ◽  
Acid Blue ◽  
Frequency Ultrasound

CoFe2O4/ZnO magnetic nanocatalysts were synthesized using a low-frequency ultrasound-assisted technique to enhance the optical, morphological, magnetic and catalytic properties of ZnO.

scholarly journals Optimization of Photocatalytic Degradation of Acid Blue 113 and Acid Red 88 Textile Dyes in a UV-C/TiO2 Suspension System: Application of Response Surface Methodology (RSM)

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 360 ◽  
Author(s):  
Soroosh Mortazavian ◽  
Ali Saber ◽  
David E. James
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Process Analysis ◽  
Textile Dyes ◽  
Order Kinetic ◽  
Solution Ph ◽  
Degradation Rates ◽  
Uv C ◽  
Acid Blue 113 ◽  
Acid Blue

Textile industries produce copious amounts of colored wastewater some of which are toxic to humans and aquatic biota. This study investigates optimization of a bench-scale UV-C photocatalytic process using a TiO2 catalyst suspension for degradation of two textile dyes, Acid Blue 113 (AB 113) and Acid Red 88 (AR 88). From preliminary experiments, appropriate ranges for experimental factors including reaction time, solution pH, initial dye concentration and catalyst dose, were determined for each dye. Response surface methodology (RSM) using a cubic IV optimal design was then used to design the experiments and optimize the process. Analysis of variance (ANOVA) was employed to determine significance of experimental factors and their interactions. Results revealed that among the studied factors, solution pH and initial dye concentration had the strongest effects on degradation rates of AB 113 and AR 88, respectively. Least-squares cubic regression models were generated by step-wise elimination of non-significant (p-value > 0.05) terms from the proposed model. Under optimum treatment conditions, removal efficiencies reached 98.7% for AB 113 and 99.6% for AR 88. Kinetic studies showed that a first-order kinetic model could best describe degradation data for both dyes, with degradation rate constants of k1, AB 113 = 0.048 min−1 and k1, AR 88 = 0.059 min−1.

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