TY - JOUR Y1 - 2010/// A1 - Khan, T. A1 - Kutty, S.R.M. A1 - Chaudhuri, M. JF - Adsorption Science and Technology UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-79953734106&doi=10.1260%2f0263-6174.28.7.657&partnerID=40&md5=836e011f1a88d2892576e4fbd093370c VL - 28 N2 - Activated carbon was prepared from coconut coir and its ability to adsorb Reactive Yellow 15 (RY15) dye examined. Batch adsorption tests showed that the extent of dye adsorption depended on the initial dye concentration, the contact time and the pH value of the solution. Equilibrium adsorption was attained within 240 min, with maximum adsorption occurring at a pH value of 2. The adsorption capacity of the activated carbon towards the dye was evaluated and compared with that of a commercial activated carbon. Equilibrium adsorption data for the coconut coir activated carbon (CCAC) and the commercial activated carbon (CAC) were well described by the Langmuir and Freundlich isotherm models, and indicated the higher adsorption capacity of CCAC. The adsorption of RY15 by CCAC and CAC followed pseudo-secondorder kinetics. The results indicate that activated carbon prepared from coconut coir is more effective than CAC for the adsorption of RY15. Hence, CCAC would be a suitable substitute for CAC in the removal of Reactive dyes from aqueous solution. IS - 7 ID - scholars1196 KW - Adsorption capacities; Adsorptive removal; Aqueous solutions; Batch adsorption tests; Commercial activated carbons; Contact time; Dye adsorption; Equilibrium adsorption; Initial dye concentration; Langmuir and Freundlich isotherm models; pH value; Reactive dyes; Second order kinetics KW - Activated carbon; Dyes; pH; Solutions; Stripping (dyes) KW - Adsorption SN - 02636174 EP - 667 AV - none N1 - cited By 13 TI - Adsorptive removal of reactive yellow 15 from aqueous solution by coconut coir activated carbon SP - 657 ER -