Equilibrium and kinetics study of methyl violet adsorption by pineapple leaf fibers‐ cl‐poly (acrylic acid‐ co‐ 2‐dimethyl amino ethyl acrylate) hydrogel

2021 ◽  
pp. 50882
Author(s):  
Subinoy Jana ◽  
Jagabandhu Ray ◽  
Barun Mondal ◽  
Santu Kumar Samanta ◽  
Tridib Tripathy
Keyword(s):  
Acrylic Acid ◽  
Methyl Violet ◽  
Ethyl Acrylate ◽  
Kinetics Study ◽  
Equilibrium And Kinetics ◽  
Poly Acrylic Acid

Adsorption of Dyes onto Sodium Alginate Graft Poly(Acrylic Acid-co-2-Acrylamide-2-Methyl Propane Sulfonic Acid)/ Kaolin Hydrogel Composite

2017 ◽  
Vol 25 (8) ◽  
pp. 627-634 ◽  
Author(s):  
Linhui Zhu ◽  
Chengdong Guan ◽  
Bin Zhou ◽  
Zhentao Zhang ◽  
Rui Yang ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Sodium Alginate ◽  
Xylenol Orange ◽  
Methyl Violet ◽  
Cationic Dyes ◽  
Anionic Dyes ◽  
Hydrogel Composite ◽  
Adsorption Capacities ◽  
Initial Ph ◽  
Poly Acrylic Acid

Adsorption of four dyes, namely methyl violet (MV), rhodamine 6G (R6G), acid chrome blue K (AK) and xylenol orange (XO) onto sodium alginate graft poly(acrylic acid-co-2-acrylamide-2-methyl-1-propanesulfonicacid)/kaolin (SA-g-P(AA-co-AMPS)/KL) hydrogel composite is studied. The factors influencing the adsorption capacities, including the initial concentrations of dye solutions, contact time, initial pH values and dosage of the adsorbent as well as ionic strength of the solution are discussed. It is more effective for the composite to adsorb cationic dyes such as MV and R6G rather than anionic dyes AK and XO. The maximum adsorption capacities of MV, R6G, AK and XO are 1361.1, 1627.8, 563.5 and 312.4 mg/g, respectively. The adsorption thermodynamics for the four dyes are in accordance with both the Freudlich and Redlich-Peterson equations. It is shown that adsorption of the cationic dyes R6G and MV is spontaneous, while that of anionic dyes AK and XO is not. The kinetics studies show that the adsorption of the four dyes fitted a pseudo-second-order equation.

Kinetics study of isothermal nicotine release from poly(acrylic acid) hydrogel

2010 ◽  
Vol 119 (3) ◽  
pp. 1805-1812 ◽  
Author(s):  
Borivoj Adnadjevic ◽  
Jelena Jovanovic ◽  
Natasa Lazarevic
Keyword(s):  
Acrylic Acid ◽  
Kinetics Study ◽  
Poly Acrylic Acid

Hyperbranched polyglycerol/poly(acrylic acid) hydrogel for the efficient removal of methyl violet from aqueous solutions

2015 ◽  
Vol 133 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Hao Ying ◽  
Guijin He ◽  
Lifeng Zhang ◽  
Qunfang Lei ◽  
Yongsheng Guo ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Methyl Violet ◽  
Efficient Removal ◽  
Hyperbranched Polyglycerol ◽  
Poly Acrylic Acid
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