Dynamic adsorption of toxic indigo carmine dye on bio-inspired synthesised Fe3O4 nanoparticles: kinetic and thermodynamic study. Issue 5 (9th April 2022)

• Record Type: Journal Article
• Authors: Patil, Suryakant A.; Kumbhar, Pramod D.; Patil, Sandip K.; Vadiyar, Madagonda M.; Suryawanshi, Umesh P.; Jambhale, Chitra L.; Anuse, Mansing A.; Kim, Jin H.; Kolekar, Sanjay S.
• Is Part Of: International journal of environmental analytical chemistry. Volume 102:Issue 5(2022)
• Page Start: 1205
• Page End: 1227
• Publication Date: 2022-04-09
• Subjects: Bengal gram bean (Cicer arietinum L.) extract -- bio-inspired magnetic Fe3O4 -- adsorption -- indigo carmine dye -- Freundlich isotherm; Ecology -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental chemistry -- Periodicals; Pollution -- Periodicals; 577.14
• DOI: 10.1080/03067319.2020.1734197
• Languages: English
• ISSNs: 0306-7319

Abstract

ABSTRACT: The bio-inspired synthesis of Fe3 O4 nanoparticles using a common kitchen waste, Bengal gram bean ( Cicer arietinum L.) extract (BGBE) for enhanced adsorption of toxic indigo carmine dye is reported. Synthesised adsorbent was characterised by FTIR, FE-SEM, XRD, BET and XPS to understand its meticulous properties. The Fe3 O4 adsorbent shows fascinating surface area of 78.61 m 2 g −1 with a pore volume of 0.25 cc g −1 at P/P0 = 0.98 and displayed nanograin like morphology. The efficiency towards adsorption of toxic IC dye was found up to 99.71 ± 0.35% within 40 min at pH 7 with 0.25 g of Fe3 O4 nanomaterials having the 299 ± 2 K surrounding temperature. The Langmuir monolayer adsorption capacity was found to 393.7 mg g −1 at the stroke speed 150 rpm. The experimental data follows the Freundlich adsorption isotherm. Kinetically the uptake rate of IC dye follows pseudo-second-order kinetic model. The thermodynamic study reveals that IC dye adsorption process is spontaneous and endothermic in nature.