naa a22 4500 510819141 CHVBK 20180411083522.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11814-013-0049-0 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0049-0 Kinetic and equilibrium studies on the biosorption of textile dyes onto Plantago ovata seeds [Elektronische Daten] [Manickam Premkumar, Vaidyanathan Kumar, Ponnusamy Kumar, Palanichamy Baskaralingam, Vasanthakumar Sathyaselvabala, Thangaraj Vidhyadevi, Subramanian Sivanesan] The powdered seeds of Plantago ovata (PSPO) were utilized for the removal of Malachite Green (MG) and Rose Bengal (RB) dyes from aqueous media by batch adsorption. The Fourier transform infra red spectroscopy (FTIR) results showed that both the dyes were adsorbed between the cellulose matrices, and this has been verified from the intensifying and narrowing aromatic C-H bending vibration. The morphology of the dye laden adsorbent was studied by scanning electron microscopy (SEM), which showed that the dyes were adsorbed between the cellulose matrices of the adsorbent. The PSPO was found to be very effective for the removal of MG and RB at pH 7, and equilibrium was attained within 200 min. The kinetic study indicated that the rate limiting step for MG and RB adsorption may be chemisorption and intraparticle diffusion. Adsorption equilibrium data were fitted to Langmuir, Freundlich, Redlich-Peterson and Temkin adsorption isotherms. It is inferred from the equilibrium studies that the adsorption of MG follows the Freundlich isotherm and the adsorption of RB follows the Langmuir isotherm. The maximum monolayer adsorption capacity of the PSPO was found to be 86.23 mg/g for MG and 81.23 mg/g for RB, respectively. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Adsorption nationallicence Equilibrium nationallicence Kinetics nationallicence Malachite Green nationallicence Plantago ovate nationallicence Rose Bengal nationallicence Premkumar Manickam Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut Kumar Vaidyanathan Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut Kumar Ponnusamy Department of Chemical Engineering, SSN College of Engineering, 603 110, Chennai, India aut Baskaralingam Palanichamy Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut Sathyaselvabala Vasanthakumar Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut Vidhyadevi Thangaraj Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut Sivanesan Subramanian Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/6(2013-06-01), 1248-1256 0256-1115 30:6<1248 2013 30 11814 https://doi.org/10.1007/s11814-013-0049-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0049-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Premkumar Manickam Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Kumar Vaidyanathan Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Kumar Ponnusamy Department of Chemical Engineering, SSN College of Engineering, 603 110, Chennai, India aut NATIONALLICENCE 700 1- Baskaralingam Palanichamy Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Sathyaselvabala Vasanthakumar Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Vidhyadevi Thangaraj Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Sivanesan Subramanian Department of Applied Science & Technology, Environmental Management Laboratory, AC College of Technology, Anna University, 600 025, Chennai, India aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/6(2013-06-01), 1248-1256 0256-1115 30:6<1248 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer