Synthesis and the Swelling Behavior of Sodium Alginate Graft Poly (Acrylic Acid-co-acrylamide)/Graphite Oxide Super Absorbent Composite

2019 ◽  
Vol 61 (5) ◽  
pp. 680-690 ◽  
Author(s):  
Linhui Zhu ◽  
Yu Liu ◽  
Bin Zhou ◽  
Hongduo Tang ◽  
Fangyuan Wang ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Sodium Alginate ◽  
Graphite Oxide ◽  
Swelling Behavior ◽  
Poly Acrylic Acid

Synthesis and Swelling Behavior of Poly(acrylic acid)/Graphite Oxide Superabsorbent Composite

2019 ◽  
Vol 61 (4) ◽  
pp. 471-478 ◽  
Author(s):  
Yaoji Tang ◽  
Hongduo Tang ◽  
Fangyuan Wang ◽  
Chengdong Guan ◽  
Linhui Zhu
Keyword(s):  
Acrylic Acid ◽  
Graphite Oxide ◽  
Swelling Behavior ◽  
Superabsorbent Composite ◽  
Poly Acrylic Acid

Enzymatic synthesis of sodium alginate‐g‐poly (acrylic acid) grafting copolymers as a novel printing thickener

2021 ◽  
Author(s):  
Nan Zhang ◽  
Zhensheng Tian ◽  
Yuanyuan Yu ◽  
Ping Wang ◽  
Man Zhou ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Sodium Alginate ◽  
Enzymatic Synthesis ◽  
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.

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