Title of article :
Phenol Removal from Aqueous Solution by Adsorption Process: Study of The Nanoparticles Performance Prepared from Alo vera and Mesquite (Prosopis) Leaves
Author/Authors :
malakootian, m. kerman university of medical sciences - environmental health engineering research center - department of environmental health, ايران , mansoorian, h.j. islamic azad university, hamedan branch - young researchers and elite clube, ايران , mansoorian, h.j. tehran university of medical science - school of public health - department of environmental health engineering, ايران , mansoorian, h.j. kerman university of medical sciences - environmental health engineering research center - department of environmental health, ايران , alizadehd, m. zahedan university of medical sciences - school of public health - department of environmental health engineering, ايران , baghbaniane, a. university of sydney - faculty of health sciences - health systems and global populations, Australia
Abstract :
This study was performed to measure the potential utilization of agro-waste to generate nanoparticles and evaluate the capability of it’s as a low cost adsorbent for removal of phenol. Adsorption studies for phenol removal by using Aloe vera and Mesquite leaves nanoparticles carried out under various experimental conditions including pH, nano-bioadsorbent dosage, phenol concentration, contact time, temperature and ionic strength in a batch reactor. The adsorption kinetics by pseudo-first order and pseudo-second order models and isotherm technique by Freundlich and Langmuir isotherms models were applied. The results showed that the rate of phenol adsorption increases in both nano-bioadsorbents with an increase of pH up to 7, adsorbent dosage up to 0.08 gL^-1, phenol initial concentration up to 32 mgL^-1, contact time up to 60 min and raising in temperature. The adsorption data followed the Freundlich isotherm model. The kinetic studies indicated that the adsorption of phenol with nano-bioadsorbents was best described by the pseudo second order kinetics. We found that the nanoparticles prepared from Aloe vera and Mesquite leaves had a high capability in adsorption of phenol, beside the point that they could be accessed at a low cost. These agro-wastes can be used to remove phenol from aqueous environments.
Keywords :
Agricultural solid waste , Aloe vera , Mesquite , Nanoparticle , Phenol Removal , Adsorption Isotherms , adsorption kinetics
Journal title :
Scientia Iranica(Transactions C: Chemistry, Chemical Engineering)
Journal title :
Scientia Iranica(Transactions C: Chemistry, Chemical Engineering)
