Fabrication and characterization of Gum arabic-cl-poly(acrylamide) nanohydrogel for effective adsorption of crystal violet dye Articles uri icon

authors

  • SHARMA, GAURAV
  • KUMAR, AMIT
  • Naushad, M.
  • GARCIA PE√ĎAS, ALBERTO
  • Al-Muhtaseb, A.H.
  • Ghfar, A.A.
  • Sharma, V.
  • Ahamad, T.
  • STADLER, FLORIAN J.

publication date

  • December 2018

start page

  • 444

end page

  • 453

volume

  • 202

International Standard Serial Number (ISSN)

  • 0144-8617

Electronic International Standard Serial Number (EISSN)

  • 1879-1344

abstract

  • Natural biopolymers are better adsorbents due to better functionality, surface area, bio-compatibility and ease of procurement. The gum arabic in natural biopolymer derived from Acacia Arabic species. In the present work a novel nanohydrogel of gum arabic with acrylamide has been fabricated using microwave synthesis for adsorption of noxious crystal violet dye from aqueous medium. The prepared gum arabic-cl-poly(acrylamide) nanohydrogel (GA-cl-poly(AAm)) NHG was characterized by numerous techniques including SEM, XRD, TEM and FTIR. The GA-cl-poly(AAm) NHG showed promising adsorption ability for crystal violet dye. The effect of various adsorption factors such as concentration of GA-cl-poly(AAm) NHG and crystal violet, pH, temperature and time has been studied and reported. For understanding the adsorption mechanism three models Langmuir, Freundlich and Temkin were applied to adsorption data The kinetics and thermodynamics of adsorption were also investigated The adsorption capacity of crystal violet onto GA-cl-poly(AAm) NHG according to Langmuir model is found to be 90.90mg/g.

keywords

  • adsorption crystal violet gum arabic langmuir isotherm nanohydrogel adhesives amides biomolecules biopolymers fabrication isotherms adsorption capacities adsorption mechanism crystal violet fabrication and characterizations gum arabic kinetics and thermodynamics langmuir isotherm nanohydrogels adsorption