@article{scholars5471, address = {Beijing}, title = {Adsorptive removal of Pb(II) ion from aqueous solution using rice husk-based activated carbon}, note = {cited By 1; Conference of 2012 International Conference on Advanced Material and Manufacturing Science, ICAMMS 2012 ; Conference Date: 20 December 2012 Through 21 December 2012; Conference Code:103206}, volume = {875-87}, doi = {10.4028/www.scientific.net/AMR.875-877.196}, publisher = {Trans Tech Publications}, journal = {Advanced Materials Research}, pages = {196--201}, year = {2014}, abstract = {The potential of rice husk-based activated carbon as an alternative low-cost adsorbent for the removal of Pb(II) ion from aqueous solution was investigated. Rice husk-based activated carbon was prepared via chemical activation process using NaOH followed by the carbonization process at 500{\^A}oC. Morphological analysis was conducted using field-emission scanning electron microscope /energy dispersive X-ray (FESEM/EDX) on three samples, i.e. raw rice husk, rice husk treated with NaOH and rice husk-based activated carbon. These three samples were also analyzed for their C, H, N, O and Si contents using CHN elemental analyzer and FESEM/EDX. The textural properties of rice husk-based activated carbon, i.e. surface area (253 m2/g) and pore volume (0.17 cm2/g), were determined by N2 adsorption. The adsorption studies using rice husk-based activated carbon as an adsorbent to remove Pb(II) ion from aqueous solution were carried out at a fixed initial concentration of Pb(II) ion (150 ppm) with varying adsorbent dose as a function of contact time at room temperature. The concentration of Pb(II) ion was determined by atomic absorption spectrophotometer (AAS). The removal of Pb(II) ion from aqueous solution increased from 35 to 82 when the amount of rice husk-based activated carbon was increased from 0.05 g to 0.30 g. The equilibrium data obtained from adsorption studies was found to fit both Langmuir and Freundlich adsorption isotherms. {\^A}{\copyright} (2014) Trans Tech Publications, Switzerland.}, keywords = {Activated carbon; Carbonization; Chemical activation; Dyes; Lead; Metal ions; Scanning electron microscopy; Wastewater treatment, Atomic absorption spectrophotometer; Carbonization process; Field emission scanning electron microscopes; Initial concentration; Langmuir and freundlich adsorption; Metal ion adsorption; Morphological analysis; Rice husk, Adsorption}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896271475&doi=10.4028\%2fwww.scientific.net\%2fAMR.875-877.196&partnerID=40&md5=e90b4356c4406249d31cc8b09a562bff}, isbn = {9783037859933}, issn = {10226680}, author = {Taha, M. F. and Rosman, A. S. and Shaharun, M. S.} }