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

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

Content Provider	Semantic Scholar
Author	Zhu, Linhui Guan, Chengdong Zhou, Bin Zhang, Zhentao Yang, Rui Tang, Yaoji Yang, Jing
Copyright Year	2017
Abstract	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.
Starting Page	627
Ending Page	634
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1177/096739111702500808
Alternate Webpage(s)	http://www.polymerjournals.com/pdfdownload/1262927.pdf
Alternate Webpage(s)	https://doi.org/10.1177/096739111702500808
Volume Number	25
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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