Dipa Ghosh

TL;DR: In this paper, methylene blue was adsorbed on kaolin from a local deposit and the adsorption data could be fitted by the Freundlich and Langmuir equations.

TL;DR: It is evident from a literature survey of about 210 recent papers that low-cost sorbents have demonstrated outstanding removal capabilities for certain dyes, and chitosan might be a promising adsorbent for environmental and purification purposes.

TL;DR: It is evident from a literature survey of about 185 recently published papers that low-cost adsorbents have demonstrated outstanding removal capabilities for MB, and these include agricultural wastes, industrial solid wastes, biomass, clays minerals and zeolites.

TL;DR: Analysis of sorption data using a Boyd plot confirms that external mass transfer is the rate limiting step in the sorption process.

TL;DR: Two simplified kinetic models including pseudo-first-order and pseudo-second-order equation were selected to follow the adsorption processes of methylene blue and the kinetic parameters of this best-fit model were calculated and discussed.

TL;DR: Coconut husk-based activated carbon was shown to be a promising adsorbent for removal of methylene blue from aqueous solutions and was found to follow closely the pseudo-second-order kinetic model.