Equilibrium, kinetic and thermodynamic studies on the biosorption of Cu(II) onto Trametes versicolor biomass

Subbaiah, Munagapati Venkata; Vijaya, Y.; Reddy, A. Subba; Yuvaraja, Gutha; Krishnaiah, A.

doi:10.1016/j.desal.2011.03.067

Cited by 40 publications

(19 citation statements)

References 52 publications

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“…The pH of metal solutions was one of the most significant variables influencing the uptake of the heavy metal ions because it affected the surface structures of the biosorbents by way of functional group dissociation and surface charge (Subbaiah et al 2011). In the experiment, both the adsorption capacity and the removal efficiency were highly dependent on the pH value (Anayurt et al 2009).…”

Section: Resultsmentioning

confidence: 99%

“…The value of 1/n reflected the measure of adsorption intensity or surface heterogeneity and became more heterogeneous when its value was close to 0 (Haghseresht and Lu 1998). Table 3 shows that the values of 1/n ranged between 0 and 1, indicating that the biosorption of Cu (II) and Cd (II) onto the rice straw and husk was favourable in the studied conditions (Subbaiah et al 2011). …”

Section: Biosorption Isothermsmentioning

confidence: 92%

“…The correlation coefficient (R 2 ) was used to test for the suitability of the isotherm and kinetic models for the adsorption process. The fitness of the sorption data for the kinetic models was analysed by calculating the sum of squared errors (SSE), and its value was evaluated by the following (Subbaiah et al 2011):…”

Section: Quality Controlmentioning

confidence: 99%

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Biosorption studies on copper (II) and cadmium (II) using pretreated rice straw and rice husk

Law

Chan

2015

Environ Sci Pollut Res

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This study investigated the adsorption and removal behaviour of copper (Cu) (II) and cadmium (Cd) (II) ions using rice husk and rice straw in aqueous solutions. Different parameters were used to investigate their adsorption performance in saline conditions and the optimal level of biosorption at different pH levels. The main parameters were pH (3, 6 and 9), initial concentration level of heavy metals (Cu (II) 5, 10, 20, 40 and 60 mg/L and Cd (II) 0.5, 1, 2, 4 and 8 mg/L, respectively), salinity (0, 50 and 100 mM NaCl) and contact time (ranging from 3 to 60 min). Langmuir and Freundlich isotherm models were applied to analyse the removal efficiency and sorption capacity of the pretreated rice husk and rice straw. The removal efficiency and adsorption capacity generally increased with the pH and reached a plateau in alkaline conditions. The percentage removal of Cu (II) by rice husk reached 97 % at pH 9 and 95 % by rice straw at pH 6. Biosorption performance increased in the absence of NaCl. Kinetic studies for both metals revealed that the biosorption of Cu (II) and Cd (II) onto rice straw and husk was pseudo-second order.

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Section: Resultsmentioning

confidence: 99%

Section: Biosorption Isothermsmentioning

confidence: 92%

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Biosorption studies on copper (II) and cadmium (II) using pretreated rice straw and rice husk

Law

Chan

2015

Environ Sci Pollut Res

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“…It also can be seen in Table 1 that the rate constant (k 2 ) decreases as the initial concentration of Cu(II) ions increases. The confirmation of pseudo-second-order kinetics indicates that the adsorption process may be a chemical adsorption or chemisorptions [14] . …”

Section: Effects Of Contact Time and Initial Cu(ii) Ion Concentrationmentioning

confidence: 94%

Kinetic studies on the adsorption of Cu(ll) onto alginate-carboxymethyl cellulose membrance

Zhao¹,

Sun²,

Li³

et al. 2016

Proceedings of the 2016 3rd International Conference on Mechatronics and Information Technology

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Abstract. Alginate-carboxymethyl cellulose membrane (AC membrane) was prepared. The adsorption behavior of Cu(II) on AC membrane was studied. The adsorption mechanisms were investigated with three different kinds of kinetic models (Lagergren's pseudo-first-order, Ho's pseudo-second-order equations). The results indicated that the experimental data of the Cu(II) adsorption on AC membrane could be well described by the Ho's pseudo-second-order model, the correlation coefficients R 2 all reached 0.99. The adsorption process is a complex and heterogeneous chemical adsorption process.

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“…The thermogravimetric analyzer, pyrolysis gas chromatograph mass spectrometer and X-ray diffractometer were used to study the pyrolysis products and the pyrolytic products of pyrolysis products in the process of thermal decomposition of calcium alginate fibers. The results showed that calcium alginate fibers The flame retardancy is attributed to the special structure of the macromolecule of the calcium alginate constituting the fiber and the action of the calcium ion contained in the fiber [7,8] . …”

Section: Introductionmentioning

confidence: 92%

Preparation and Properties of Calcium Alginate Nano-Cu2O Flame Retardant Antimicrobial Membrane Material

Sun¹,

Li²,

Zhao³

et al. 2016

Proceedings of the 2016 2nd International Conference on Architectural, Civil and Hydraulics Engineering (ICACHE 2016)

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Abstract. Nano-Cu2O materials have many excellent properties, it is widely used, to overcome its sparingly solubility in water and poor stability among other defects, anhydrous cupric sulfate as raw materials, preparation of gel of nano-Cu2O by in stiu reduction method in sodium alginate solution(SA). The structure and morphology of the Cu2O in the gel was investigated by FT-IR and SEM were tested. On the basis of SA/nano-Cu2O gel, Calcium Alginate nano-Cu2O membrane were prepared by vacuum drying and crosslinking with Ca 2+. The material has flame retardant, antibacterial and other excellent performance. Has a wide range of applications.

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Equilibrium, kinetic and thermodynamic studies on the biosorption of Cu(II) onto Trametes versicolor biomass

Cited by 40 publications

References 52 publications

Biosorption studies on copper (II) and cadmium (II) using pretreated rice straw and rice husk

Biosorption studies on copper (II) and cadmium (II) using pretreated rice straw and rice husk

Kinetic studies on the adsorption of Cu(ll) onto alginate-carboxymethyl cellulose membrance

Preparation and Properties of Calcium Alginate Nano-Cu2O Flame Retardant Antimicrobial Membrane Material

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