Fabrication of polyaniline/activated carbon composite and its testing for methyl orange removal: Optimization, equilibrium, isotherm and kinetic study

2019 ◽  
Vol 77 ◽  
pp. 105909 ◽  
Author(s):  
Mudassir Hasan ◽  
Md Mamoon Rashid ◽  
Muhammad M. Hossain ◽  
Mohammed K. Al Mesfer ◽  
Muhammad Arshad ◽  
...  
2019 ◽  
Vol 160 ◽  
pp. 185-192 ◽  
Author(s):  
Mohd Arif Rosli ◽  
Zawawi Daud ◽  
Mohd Baharudin Ridzuan ◽  
Nur Adila Abd Aziz ◽  
Halizah Binti Awang ◽  
...  

Chemosphere ◽  
2005 ◽  
Vol 61 (4) ◽  
pp. 492-501 ◽  
Author(s):  
Indra Deo Mall ◽  
Vimal Chandra Srivastava ◽  
Nitin Kumar Agarwal ◽  
Indra Mani Mishra

2014 ◽  
Vol 1077 ◽  
pp. 18-22 ◽  
Author(s):  
Fareeda Hayeeye ◽  
Maimoon Sattar ◽  
Watchanida Chinpa ◽  
Orawan Sirichote

The aim of this work is to prepare the Gelatin/Activated Carbon (GE/AC) composites in bead form using for adsorption of Rhodamine B. The scanning electron microscope (SEM) shows smooth surface and pore distribution for an external and internal GE/AC composite bead, respectively. FTIR-ATR spectra indicate the presence of AC on the GE/AC bead surface. It was found that an increase in the AC content in GE solution from 0.5 to 2.5 wt% resulted in an increase in the percentages of dye adsorption of GE/AC bead from 13.79 to 52.87%. Under the study of equilibrium isotherm it was found that the adsorption isotherm of Rhodamine B follows Langmuir isotherm model. The results indicate that GE/AC adsorbent could be employed for removal of cationic dyes from textile effluent.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoyu Chen ◽  
Lindun He

Chitosan-activated carbon composite microspheres were prepared by emulsion cross-linking method and its adsorption properties for methyl orange were studied. Chitosan solution was mixed with activated carbon powder and then chitosan was cross-linked by epichlorohydrin under microwave irradiation. SEM photos show that the composite microspheres have diameters of 200–400 μm and activated carbon powder dispersed on the surface of composite microsphere. FTIR spectrum indicates chitosan is successfully cross-linked. Microwave irradiation can effectively shorten the cross-linking time. Composite microspheres have enhanced dye adsorption capacity for methyl orange compared to chitosan microspheres. Kinetic studies showed that the adsorption followed a pseudo-second-order model. Isotherm studies show that the isotherm adsorption equilibrium is better described by Freundlich isotherm. Regeneration results show that adsorption capacity of composite microsphere decreased about 5.51% after being reused for three times. These results indicated that chitosan-activated carbon composite microsphere has potential application in the removal of dye from wastewaters.


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