Open AccessCharacteristic evaluation of adsorption efficiency of activated wood charcoals in adsorbing acetic acid
Author(s) -
Preeti N. Tallur,
Vinayak M. Naik,
P.D. Antony,
Vipul V. Naik
Publication year - 2020
Publication title -
journal of ultra chemistry/journal of ultra chemistry
Language(s) - English
Resource type - Journals
eISSN - 2319-8036
pISSN - 0973-3450
DOI - 10.22147/juc/160602
Subject(s) - charcoal , activated carbon , adsorption , carbonization , activated charcoal , acetic acid , chemistry , muffle furnace , freundlich equation , nuclear chemistry , langmuir , pulp and paper industry , organic chemistry , calcination , engineering , catalysis
Activated wood charcoal (Carbonized) acts as an excellent adsorbent and it finds wide applications. The present study was carried on four different activated wood charcoals Salix (Sac), Pinus (Pac), Anacardium occidentale (AOac) and Calophyllum inophyllum (CIac) found in Karwar district, Karnataka, India. The activated charcoal was prepared by carbonizing in a muffle-furnace at 800 0 C and the yield of carbonized carbon was about 50%. SEM morphology and EDX spectrum indicates the homogeneity and purity of the activated wood charcoals containing 65-86% carbon to that of commercial charcoal (89% C) and hydrogen is absent. Langmuir and Freundlich adsorption isotherms are well-correlated and verified. The regressive coefficient (R2 ) of isotherms recorded a higher value above 0.92 which proves the homogeneous and even adsorption phenomenon by the activated wood charcoals. Sac and AOac recorded highest percentage of removal of acetic acid of about 40-60% and 20-26% with Cac (20-25%) where Pac and CIac recorded 17-23% which is relatively near to the commercially activated charcoal(Cac). On comparison of relative percentage of removal of acetic by activated wood charcoals with commercial charcoal, the activated wood charcoals serve as an efficient adsorbent for acetic acid. The cost and availability of the wood is cheaper.