Kinetics, equilibrium and thermodynamic studies on biosorption of Ag(I) from aqueous solution by macrofungus Pleurotus platypus

Das, Devlina; Das, Nilanjana; Mathew, Lazar

doi:10.1016/j.jhazmat.2010.08.105

Cited by 92 publications

(34 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A variety techniques have been developed to remove the silver from wastewater such as ion-exchange 4,7 , precipitation 8 , solid phase extraction 9 , coagulation 10 , biosorption 11 and adsorption 12 . Adsorption is an attracted attention because of new material types available for the recovery process.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Jintakosol

Nitayaphat

2016

Mat. Res.

View full text Add to dashboard Cite

Chitosan/montmorillonite (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag + ) from aqueous solution. Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution. The optimum pH value for Ag + removal was found to be 6-7. The maximum adsorbent dosage for Ag + removal was 5 g/L. Under above maximum conditions the Ag + removal was 95.7%. The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively. The adsorption kinetic agrees well with the pseudo second order model. The Ag + desorption of CTS-MMT composite bead was 17.39% at pH=4. SEM/EDX images confirm that after adsorption the Ag + were dispersed onto the composite bead surface. The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag + from aqueous solution.

show abstract

Section: Introductionmentioning

confidence: 99%

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Jintakosol

Nitayaphat

2016

Mat. Res.

View full text Add to dashboard Cite

show abstract

“…Although the conventional methods such as precipitation, ion exchange, reductive exchange, and electrolytic recovery are able to remove silver ions from the effluents, they have some restrictions and, especially, are less economical in practice [1][2][3][4][5][6]. Alternatively, biosorption is a proven technique for the removal of metal ions from contaminated effluents [7,8].…”

Section: CLmentioning

confidence: 99%

“…Among the precious metals, silver is widely used for the electroplating, die-casting alloy, coins, silverware, photographic, and imaging industry [1]. It's very vast application has to be highlighted as a raw material in various industries due to the excellent malleability, ductility, electrical and thermal conductivity, photosensitivity, and antimicrobial properties [2].…”

Section: Introductionmentioning

confidence: 99%

“…It's very vast application has to be highlighted as a raw material in various industries due to the excellent malleability, ductility, electrical and thermal conductivity, photosensitivity, and antimicrobial properties [2]. In many cases, a considerable amount of the above-mentioned industries' sewage contains silver ion effluent that harmfully pollutes the aquatic system and environment [1]. The toxicity of silver ion to living organisms and especially to humans necessitates its immediate and effective removal from wastewaters [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…In many cases, a considerable amount of the above-mentioned industries' sewage contains silver ion effluent that harmfully pollutes the aquatic system and environment [1]. The toxicity of silver ion to living organisms and especially to humans necessitates its immediate and effective removal from wastewaters [1][2][3]. Silver's toxicity is highly dependent on its chemical form [4].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cercis siliquastrum Tree Leaves as an Efficient Adsorbent for Removal of Ag(I): Response Surface Optimization and Characterization of Biosorption

Zolgharnein

Shariatmanesh

Asanjarani

2013

CLEAN Soil Air Water

View full text Add to dashboard Cite

The Cercis siliquastrum tree leaves are introduced as a low cost biosorbent for removal of Ag(I) from aqueous solution in a batch system. FT-IR, XRD analysis, and potentiometric titration illustrate that the adsorption took place and the acidic functional group (carboxyl) of the sorbent was involved in the biosorption process. In addition, it was observed that the pH beyond pH pzc 4.4 is favorable for the removal procedure. The effect of operating variables such as initial pH, temperature, initial metal ion concentration, and sorbent mass on the Ag(I) biosorption was analyzed using response surface methodology (RSM). The proposed quadratic model resulting from the central composite design approach (CCD) fitted very well to the experimental data. The optimum condition obtained with RSM was an initial concentration of Ag(I) of 85 mg L À1 , pH ¼ 6.3 and sorbent mass 0.19 g. The applicability of different kinetic and isotherm models for current biosorption process was evaluated. The isotherm, kinetic, and thermodynamic studies showed the details of sorbate-sorbent behavior. The competitive effect of alkaline and alkaline earth metal ions during the loading of Ag(I) was also considered.

show abstract

Biosorption of Precious Metals from Wastewater

Tiwari¹,

Jha²,

Pal³

2021

Biosorption for Wastewater Contaminants

View full text Add to dashboard Cite

Kinetics, equilibrium and thermodynamic studies on biosorption of Ag(I) from aqueous solution by macrofungus Pleurotus platypus

Cited by 92 publications

References 75 publications

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Cercis siliquastrum Tree Leaves as an Efficient Adsorbent for Removal of Ag(I): Response Surface Optimization and Characterization of Biosorption

Biosorption of Precious Metals from Wastewater

Contact Info

Product

Resources

About