Adsorption kinetic and equilibrium studies for methylene blue dye by partially hydrolyzed polyacrylamide/cellulose nanocrystal nanocomposite hydrogels

2014 ◽  
Vol 251 ◽  
pp. 17-24 ◽  
Author(s):  
Chengjun Zhou ◽  
Qinglin Wu ◽  
Tingzhou Lei ◽  
Ioan I. Negulescu
Keyword(s):  
Methylene Blue ◽  
Adsorption Kinetic ◽  
Cellulose Nanocrystal ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Equilibrium Studies ◽  
Nanocomposite Hydrogels ◽  
Partially Hydrolyzed Polyacrylamide ◽  
Hydrolyzed Polyacrylamide

Kinetics of methylene blue dye adsorptive removal using halloysite nanocomposite hydrogels

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sadia Ata ◽  
Sadaf Amin ◽  
Ismat Bibi ◽  
Ijaz-ul- Mohsin ◽  
Atif Islam ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Polymer Chains ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Nanocomposite Hydrogels ◽  
Antimicrobial Efficiency ◽  
Nano Clay ◽  
Swelling Capacity ◽  
Solution Casting Method ◽  
Adsorption Desorption

Abstract In the present work, halloysite nano-clay (HNTs) based hydrogel was fabricated and their efficiency for the removal of methylene blue dye was studied. The hydrogel films were prepared with varying amount of halloysite nano-clay via facile solution casting method. Effect of halloysite clay on adsorption performance of composite was investigated. The hydrophobic thermoplastic synthetic polymer, polylactic acid (PLA) was blended with hydrophilic polymer polyvinyl alcohol (PVA) and HNTs to synthesize hydrogels. Swelling behavior and antimicrobial efficiency was also evaluated. The halloysite incorporating films showed excellent antibacterial activity. Swelling capacity of hydrogel with increased halloysite content was reduced due to increased crosslinking among polymer chains. Halloysite incorporated hydrogel exhibited higher adsorption ability as compared to film comprising of only PVA and PLA and dye removal followed pseudo first order kinetics. Film with 0.03 g HNTs rapidly attained adsorption-desorption equilibria and removed the dye completely within 30 min. Results confirmed that synthesized film could be potentially used for the removal of cationic dye and fabricated hydrogel film have promising potential for wastewater treatment since a higher adsorption capacity was observed for halloysite nano-clay incorporated hydrogel.

scholarly journals Chitosan biopolymer based nanocomposite hydrogels for removal of methylene blue dye

2020 ◽  
Vol 2 (5) ◽  
Author(s):  
Ghada A. Mahmoud ◽  
Asmaa Sayed ◽  
Maryan Thabit ◽  
Gehan Safwat
Keyword(s):  
Methylene Blue ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Nanocomposite Hydrogels ◽  
Chitosan Biopolymer

Kinetics and equilibrium studies of methylene blue dye adsorption on oil palm frond adsorbent

2021 ◽  
Vol 216 ◽  
pp. 358-371
Author(s):  
Amy Low Huey Chuein ◽  
Nor Najhan Idris ◽  
Tuan Sherwyn Hamidon ◽  
Nur Fatin Silmi Mohd Azani ◽  
Nor Salmi Abdullah ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Oil Palm ◽  
Dye Adsorption ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Equilibrium Studies ◽  
Oil Palm Frond ◽  
Palm Frond

scholarly journals Synthesis, characterization and adsorption studies of nano-composite hydrogels and the effect of SiO2 on the capacity for the removal of Methylene Blue dye

2020 ◽  
Vol 85 (7) ◽  
pp. 939-952
Author(s):  
Sinan Temel ◽  
Elif Yaman ◽  
Nurgul Ozbay ◽  
Gokmen Ozge
Keyword(s):  
Methylene Blue ◽  
Dye Removal ◽  
Sio2 Nanoparticles ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Nano Composite ◽  
Nanocomposite Hydrogels ◽  
Infra Red ◽  
Ft Ir ◽  
Nitrogen Contents

Nanocomposite hydrogels were produced by free radical polymerization of acrylic acid and N-vinylpyrrolidone in the presence of SiO2 nanoparticles. The chemical and morphological structures of the hydrogels were determined using Fourier transform infra-red spectroscopy (FT-IR) and field emission scanning electron microscopy (FESEM). The nanocomposite hydrogels were used for the adsorption and desorption of Methylene Blue dye from wastewater. Wastewater was referred to distilled water that contained Methylene Blue dye under laboratory conditions. The carbon, hydrogen and nitrogen contents of the dye, hydrogels and dye-adsorbed hydrogels were determined by elemental analysis. The influences of SiO2 nanoparticles and copolymerization on the adsorption capacity were studied. The maximum dye removal of 98.3 % was obtained with AA-co-VP (3:1) copolymeric hydrogel. The synthesized hydrogels could be evaluated as adsorbents in wastewater treatment, effectively.

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