A new alternative adsorbent for the removal of cationic dyes from aqueous solution

Santhi, T.; Manonmani, S.; Vasantha, Vairathevar Sivasamy; Chang, Yoon-Young

doi:10.1016/j.arabjc.2011.06.004

Cited by 122 publications

(34 citation statements)

References 33 publications

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“…Furthermore, the correlation coefficients R 2 of 1 PFO was lower than the R 2 of PSO implying that the predicted q e values of PFO 2 deviated reasonably from the experimental values. The PSO fitted very well to the 3 adsorption behavior indicating that the intraparticle diffusion was involved in the 4 adsorption process [22]. 5 3.4.…”

Section: Methodsmentioning

confidence: 77%

Improved removal of malachite green from aqueous solution using chemically modified cellulose by anhydride

Zhou

Min

Qiao

et al. 2015

International Journal of Biological Macromolecules

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Section: Methodsmentioning

confidence: 77%

Improved removal of malachite green from aqueous solution using chemically modified cellulose by anhydride

Zhou

Min

Qiao

et al. 2015

International Journal of Biological Macromolecules

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“…In addition, the existence of large number of smaller particles would provide the adsorption system with a greater surface area for adsorption of phenol from the solution. The adsorption capacity is directly proportional to the total surface area exposed, whereas it is inversely proportional to the particle size diameter for non-porous adsorbents [35,36]. In a study conducted by Roostaei and Tezel (2004) on phenol removal through the adsorption using silica gel, HiSiv TM 3000, activated alumina, activated carbon, Filtrasorb-400, and HiSiv TM 1000, it was revealed that powdered HiSiv TM 1000 (particle size < 100 m) has the best kinetics result with the highest rate of adsorption [37].…”

Section: The E Ect Of Nano-bioadsorbent Dosagementioning

confidence: 99%

“…The linear form of the Langmuir isotherm model can be presented as in Eq. (3) [35,36], where q e is the equilibrium adsorption capacity of phenol on the adsorbent (mgg 1 ), C e is the equilibrium dye concentration in solution (mgL 1 ), q m is the maximum capacity of the adsorbent (mgg 1 ), and k L is the Langmuir adsorption constant (Lmg 1 ):…”

Section: Adsorption Isothermmentioning

confidence: 99%

Phenol Removal from Aqueous Solution by Adsorption Process: Study of The Nanoparticles Performance Prepared from Alo vera and Mesquite (Prosopis) Leaves

et al. 2017

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Abstract. This study was performed to measure the potential utilization of agro-waste to generate nanoparticles and evaluate its capability as a low-cost adsorbent for phenol removal. Adsorption studies for phenol removal using aloe vera and mesquite leaves nanoparticles were carried out under various experimental conditions including pH, nanobioadsorbent dosage, phenol concentration, contact time, temperature, and ionic strength in a batch reactor. The adsorption kinetics were applied by pseudo-rst order and pseudosecond order models and isotherm technique by Freundlich and Langmuir isotherms models. The results showed that the rate of phenol adsorption increases in both nano-bioadsorbents with an increase in 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 a raise 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, besides the point that they could be accessed at low cost. These agro-wastes can be used to remove phenol from aqueous environments.

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“…Also the existence of large number of smaller particles would provide the adsorption system with a greater surface area for adsorption of phenol from the solution. The adsorption capacity is directly proportional to the total surface area exposed whereas for non-porous adsorbents it is inversely proportional to the particle size diameter [35,36]. In a study conducted by Roostaei et al (2004) on phenol removal through the adsorption using silica gel, HiSiv™ 3000, activated alumina, activated carbon, Filtrasorb-400, and HiSiv™ 1000 it was revealed that powdered HiSiv™ 1000 (Particle size < 100µm) has the best kinetics result with the highest rate of adsorption [37].…”

Section: The Effect Of Particle Size Of the Nano-bioadsorbentmentioning

confidence: 99%

“…It also assumes that when a site is occupied by an adsorbate molecule, no more adsorption takes place at this site. The linear form of the Langmuir isotherm model can be presented as Eq.3 [35,36], where q e is the equilibrium adsorption capacity of phenol on the adsorbent (mgg -1 ), C e , is the equilibrium dye concentration in solution (mgL -1 ), q m , is the maximum capacity of the adsorbent (mgg -1 ), and k L is the Langmuir adsorption constant…”

Section: Adsorption Isothermmentioning

confidence: 99%

Phenol Removal from Aqueous Solution by Adsorption Process: Study of The Nanoparticles Performance Prepared from Alo vera and Mesquite (Prosopis) Leaves

et al. 2017

View full text Add to dashboard Cite

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, nanobioadsorbent 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 agrowastes can be used to remove phenol from aqueous environments.

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A new alternative adsorbent for the removal of cationic dyes from aqueous solution

Cited by 122 publications

References 33 publications

Improved removal of malachite green from aqueous solution using chemically modified cellulose by anhydride

Improved removal of malachite green from aqueous solution using chemically modified cellulose by anhydride

Phenol Removal from Aqueous Solution by Adsorption Process: Study of The Nanoparticles Performance Prepared from Alo vera and Mesquite (Prosopis) Leaves

Phenol Removal from Aqueous Solution by Adsorption Process: Study of The Nanoparticles Performance Prepared from Alo vera and Mesquite (Prosopis) Leaves

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