Ultrasonic assisted removal of sunset yellow from aqueous solution by zinc hydroxide nanoparticle loaded activated carbon: Optimized experimental design

2015 ◽  
Vol 52 ◽  
pp. 82-89 ◽  
Author(s):  
M. Roosta ◽  
M. Ghaedi ◽  
R. Sahraei ◽  
M.K. Purkait
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Experimental Design ◽  
Zinc Hydroxide ◽  
Sunset Yellow ◽  
Ultrasonic Assisted

Optimization of the combined ultrasonic assisted/adsorption method for the removal of malachite green by zinc sulfide nanoparticles loaded on activated carbon: experimental design

RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 100129-100141 ◽  
Author(s):  
Mostafa Roosta ◽  
Mehrorang Ghaedi ◽  
Fakhri Yousefi
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Experimental Design ◽  
Design Optimization ◽  
Zinc Sulfide ◽  
Malachite Green ◽  
Adsorption Method ◽  
Ultrasonic Assisted ◽  
Zinc Sulfide Nanoparticles ◽  
Ultrasound Assisted

The aim of the present study is experimental design optimization applied to the removal of malachite green (MG) from aqueous solution by ultrasound-assisted removal onto zinc sulfide nanoparticles loaded on activated carbon (ZnS-NP-AC).

scholarly journals Application of Factorial Design for the Optimization of Hexavalent Chromium Removal Using a New Low-cost Adsorbent: Adsorption Isotherms, Thermodynamic and Kinetic Studies

2021 ◽  
Vol 12 (1) ◽  
pp. 1247-1262
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Experimental Design ◽  
Hexavalent Chromium ◽  
Low Cost ◽  
Research Work ◽  
Kinetic Studies ◽  
Factorial Experimental Design ◽  
Initial Ph ◽  
Adsorbent Dose

This research work involved using factorial experimental design techniques to investigate the adsorption of hexavalent chromium from an aqueous solution on medlar activated carbon. A 24 full factorial experimental design was employed to determine the optimum values and degree of importance of parameters: pH, initial Cr (VI) concentration, adsorbent dose, and contact time at two levels. The optimized conditions for hexavalent chromium Cr (VI) removal were at initial pH 1.5, 5 mg.L−1Cr (VI), adsorbent dose 6 mg, and 60 min adsorption time. The results predicted a good agreement between the predicted values (R2= 0.9909), as obtained by the model, and the experimental value (R2= 0.9977). The main effects and interaction effects were analyzed using analysis of variance (ANOVA), F-test and P-values to define the most important process variables affecting Cr (VI) adsorption. The most significant variables were therefore the pH of the solution and the adsorbent dose. Therefore, the present results demonstrate that medlar activated carbon should be regarded as a low-cost alternative for removing Cr (VI) from an aqueous solution. The adsorption data were evaluated by Langmuir, Freundlich, and Dubinin-Radushkevich isotherms. The results showed that the Langmuir isotherm model best describes the equilibrium adsorption with a high correlation coefficient.

Application of experimental design for removal of sunset yellow by copper sulfide nanoparticles loaded on activated carbon

2014 ◽  
Vol 20 (5) ◽  
pp. 2663-2670 ◽  
Author(s):  
Saeid Khodadoust ◽  
Mehrorang Ghaedi ◽  
Reza Sahraei ◽  
Ali Daneshfar
Keyword(s):  
Activated Carbon ◽  
Experimental Design ◽  
Copper Sulfide ◽  
Sunset Yellow
Sign in / Sign up

Export Citation Format

Share Document