Single and multicomponent acid dye adsorption equilibrium studies on tyre demineralised activated carbon

2012 ◽  
Vol 191 ◽  
pp. 162-170 ◽  
Author(s):  
O.S. Chan ◽  
W.H. Cheung ◽  
G. McKay
Keyword(s):  
Activated Carbon ◽  
Adsorption Equilibrium ◽  
Dye Adsorption ◽  
Acid Dye ◽  
Equilibrium Studies

scholarly journals Preparation of Chitosan/Hyperbranched Polyester/Cobalt Composite For Acid Blue 277 Dye Adsorption

2020 ◽  
Vol 11 (4) ◽  
pp. 11653-11665
Keyword(s):  
Particle Size ◽  
Dye Adsorption ◽  
Particle Size Analysis ◽  
Isotherm Models ◽  
Size Analysis ◽  
Order Kinetic ◽  
Hyperbranched Polyester ◽  
Acid Dye ◽  
Equilibrium Studies ◽  
Acid Blue

Acid dye effluents are among the popular threatening sources to the environment and human health due to their photochemical stability, complexity, and poor biodegradability. Therefore, this study aims to prepare chitosan/hyperbranched polyester (HBPE)/cobalt composite with ratio (1:1:0.5 wt %, respectively) using emulsion technique as an adsorbent to deal with the acid dye effluent. Chemical structure, morphology, particle size analysis, and thermal stability of the prepared composite were carried out using Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM),) dynamic light scattering technique (DLS) and thermogravimetric analysis (TGA). Adsorption isotherms of acid blue 277 dye (AB277), using the different isotherm models (Langmuir, Freundlich, D-R, and Temkin) under removal conditions at pH 3.0 and contact time of 1 h in 10 mL aqueous medium at 25ᴼC, were investigated. The results illustrated that the chitosan/HBPE/Co composite was successfully prepared with a particle size of around 679±494 nm relative to chitosan/HBPE (139±67.6 nm). Also, the pseudo-second-order kinetic model fitted better than the pseudo-first-order one for adsorption of AB277. Batch equilibrium studies showed that chitosan/HBPE/Co composite could be employed as an efficient adsorbent of AB277 dye with an adsorption capacity of 26.74 mg/g, relative to that of chitosan/HBPE (3.19 mg/g).

Equilibrium Studies for Acid Dye Adsorption onto Chitosan

Langmuir ◽  
2003 ◽  
Vol 19 (19) ◽  
pp. 7888-7894 ◽  
Author(s):  
Y. C. Wong ◽  
Y. S. Szeto ◽  
W. H. Cheung ◽  
G. McKay
Keyword(s):  
Dye Adsorption ◽  
Acid Dye ◽  
Equilibrium Studies

Fixed bed modelling for acid dye adsorption onto activated carbon

2003 ◽  
Vol 78 (12) ◽  
pp. 1281-1289 ◽  
Author(s):  
Vinci KC Lee ◽  
John F Porter ◽  
Gordon McKay
Keyword(s):  
Activated Carbon ◽  
Fixed Bed ◽  
Dye Adsorption ◽  
Acid Dye

Efficiency of Bamboo Waste Activated Carbon on Acid Dye Wastewater Treatment

2014 ◽  
Vol 931-932 ◽  
pp. 640-644
Author(s):  
Kanuengnit Suwanasing ◽  
Mudjalin Poonprasit
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Activated Carbons ◽  
Average Pore Size ◽  
Dye Adsorption ◽  
Weight Ratio ◽  
Synthetic Wastewater ◽  
Acid Dye ◽  
Nacl Solution ◽  
Study Results

This research aims to produce activated carbon from bamboo waste (used bamboo chopsticks), activated by low-cost and non-toxic chemical substance (Sodium Chloride, NaCl), as an option for silk dyeing wastewater treatment in a small cottage industry. Initially, used bamboo chopsticks were carbonization at 600 °C to produce bamboo charcoal. Then the charcoal was activated using three different methods: (a) soaking in the NaCl solution at the charcoal to NaCl (weight/weight) ratio of 1:1; (b) burning at 800 °C; and (c) activating using the previously mentioned 2 methods together by soaking in the NaCl solution at the ratio of 1:1 then burning at 800 °C. The activated carbons physical characteristics study has found that the activated carbon activated using the third method had the highest BET specific surface area of 327.69 m2/g, total specific pore volume of 0.18 mg/l, and average pore size of 22.52 Å. The adsorption study of the activated carbon activated by NaCl and temperature used synthetic wastewater of red acid dye (AR114) with the initial concentrations of 20 mg/l. The study results have showed that the activated carbon activated by NaCl and temperature reached equilibrium within 180 minutes, and had the color removal efficiency of 77.36%. The adsorption isotherm study results have indicated that the acid dye adsorption of the activated carbon activated by NaCl and temperature followed the Langmuir isotherm.

Mechanistic and adsorption equilibrium studies of dibenzothiophene-rich-diesel on MnO2 -loaded-activated carbon: Surface characterization

2017 ◽  
Vol 36 (3) ◽  
pp. 903-913 ◽  
Author(s):  
Mohammad A. Al-Ghouti ◽  
Yahya S. Al-Degs ◽  
Ayman A. Issa ◽  
Ramia Z. Al Bakain ◽  
Majeda A. Khraisheh
Keyword(s):  
Activated Carbon ◽  
Surface Characterization ◽  
Adsorption Equilibrium ◽  
Carbon Surface ◽  
Equilibrium Studies
Sign in / Sign up

Export Citation Format

Share Document