Poly(Acrylic Acid)/Bentonite Composites for Removing High Concentration of Methylene Blue

2013 ◽  
Vol 773 ◽  
pp. 472-476 ◽  
Author(s):  
Yan Wang ◽  
Yu Feng He ◽  
Ling Zhang ◽  
Rong Li ◽  
Li Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Acrylic Acid ◽  
In Situ Polymerization ◽  
Ph Value ◽  
Physical Adsorption ◽  
High Concentration ◽  
Ft Ir ◽  
Polymer Adsorbent ◽  
Poly Acrylic Acid

The poly (acrylic acid)/Bentonite composites (PAA/Bent) was prepared by in-situ polymerization. The structure of PAA/Bent was characterized by FT-IR, XRD and SEM, which indicated that AA intercalated into the interlayers of bentonite, and composite was formed between Bent and PAA. The PAA/Bent was used as a polymer adsorbent to remove methylene blue, a typical cationic dyes. Some important influencing factors on removing MB by PAA/Bent were investigated. The optimum adsorption conditions were obtained as following: the PAA/Bent dosage is 0.08 g, contacting 20 min at room temperature (25 °C), the pH value had little effect on MB adsorption, PAA/Bent can be used to treat wastewater with a broad range of pH value. The removal ratio of MB got to 99.4 %, and the adsorption capacity was 310.7 mgg-1. The removal mechanism is also investigated. It was charge neutralization and physical adsorption. In summary, the results indicated that PAA/Bent is an effective adsorbent and can be used to treat high concentration of MB wastewater.

In situ polymerization induced supramolecular hydrogels of chitosan and poly(acrylic acid-acrylamide) with high toughness

2017 ◽  
Vol 1 (2) ◽  
pp. 310-318 ◽  
Author(s):  
Jin Li ◽  
Zhilong Su ◽  
Xiaodong Ma ◽  
Hongjie Xu ◽  
Zixing Shi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Acrylic Acid ◽  
Electrostatic Interaction ◽  
In Situ Polymerization ◽  
Supramolecular Hydrogel ◽  
High Toughness ◽  
Poly Acrylic Acid

A novel type of supramolecular hydrogel was developed byin situpolymerization of acrylic acid (AA) and acrylamide (AM) monomers in the aqueous solution of chitosan (CS) based on the dynamic electrostatic interaction of ions.

Preparation of poly(acrylic acid) exfoliated clay composite by in-situ polymerisation for decolouration of methylene blue from wastewater

2020 ◽  
pp. 1-17
Author(s):  
Mohammed Mizanur Rahman ◽  
Sunzida H. Rimu ◽  
Shanta Biswas ◽  
Taslim U. Rashid ◽  
Adib H. Chisty ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Acrylic Acid ◽  
Poly Acrylic Acid

Poly(acrylic acid) modifying bentonite with in-situ polymerization for removing lead ions

2012 ◽  
Vol 65 (8) ◽  
pp. 1383-1391 ◽  
Author(s):  
Y. F. He ◽  
L. Zhang ◽  
D. Z. Yan ◽  
S. L. Liu ◽  
H. Wang ◽  
...  
Keyword(s):  
Experimental Data ◽  
Acrylic Acid ◽  
Metal Ions ◽  
In Situ Polymerization ◽  
Second Order ◽  
Order Kinetic ◽  
Freundlich Isotherms ◽  
Pseudo Second Order ◽  
Poly Acrylic Acid

In this paper, a new kind of poly(acrylic acid) modified clay adsorbent, the poly(acrylic acid)/bentonite composite (PAA/HB) was prepared by in-situ polymerization, and utilized to remove lead(II) ions from solutions. The maximum adsorption of adsorbent is at pH 5 for metal ions, whereas the adsorption starts at pH 2. The effects of contact time (5–60 min), initial concentration of metal ions (200–1,000 mg/L) and adsorbent dosage (0.04–0.12 g/100 mL) have been reported in this article. The experimental data were investigated by means of kinetic and equilibrium adsorption isotherms. The kinetic data were analyzed by the pseudo-first-order and pseudo-second-order equation. The experimental data fitted the pseudo-second-order kinetic model very well. Langmuir and Freundlich isotherms were tried for the system to better understand the adsorption isotherm process. The maximal adsorption capacity of the lead(II) ions on the PAA/HB, as calculated from the Langmuir model, was 769.2 mg/g. The results in this study indicated that PAA/HB was an attractive candidate for removing lead(II) (99%).

scholarly journals High dielectric constant polyaniline/poly(acrylic acid) composites prepared by in situ polymerization

2008 ◽  
Vol 158 (15) ◽  
pp. 630-637 ◽  
Author(s):  
Chao-Hsien Ho ◽  
Cheng-Dar Liu ◽  
Chia-Hung Hsieh ◽  
Kuo-Huang Hsieh ◽  
Sung-Nung Lee
Keyword(s):  
Dielectric Constant ◽  
Acrylic Acid ◽  
High Dielectric Constant ◽  
In Situ Polymerization ◽  
High Dielectric ◽  
Poly Acrylic Acid
Sign in / Sign up

Export Citation Format

Share Document