Kinetics, Thermodynamics and Isotherm Studies on Adsorption of Methyl Violet from Aqueous Solution Using Activated Bio-Adsorbent: Phragmites karka

Behera, Saroj Sekhar; Das, Swapan K; Murmu, B.M.; Mohapatra, Ranjan K.; Sahoo, Tapas Ranjan; Parhi, Pankaj Kumar

doi:10.2174/2212717803666161027144342

Cited by 17 publications

(6 citation statements)

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“…The reaction kinetic analysis during CrO 4 2− ion biosorption using CSF‐1 and CSF‐2 fungal biomass was carried out by pseudo‐first‐order and second‐order kinetic models as per the Lagrange Equations (3) and (4). 37,38 …”

Section: Resultsmentioning

confidence: 99%

“…The reaction kinetic analysis during CrO 4 2− ion biosorption using CSF-1 and CSF-2 fungal biomass was carried out by pseudo-first-order and second-order kinetic models as per the Lagrange Equations ( 3) and (4). 37,38 The logarithmic form of the pseudo-first-order kinetic model was described in Equation (4) below log (𝑞 𝑒 − 𝑞 𝑡 ) = log 𝑞 𝑒 − ( 𝑘 1 2.303…”

Section: 51mentioning

confidence: 99%

“…This indicates that the adsorption of CrO 4 2− ion onto the fungal biomass satisfies the chemisorption type reaction mechanism. 37,38 The chemisorption behavior of the fungal biomass can be clarified based on their strong ionic nature, which gives substantial support for the possible binding of chromate ions onto the surface-active ligands present in the biosorbent. 35,36 The various reported studies supported the chemisorptions behavior of CrO 4 2− ion sorption by the fungal biomass.…”

Section: 51mentioning

confidence: 99%

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Kinetic modeling and isotherm approach for biosorptive removal of hexavalent chromium using heat inactivated fungal biomass

Das¹,

Behera

Mohapatra

et al. 2023

Int J of Chemical Kinetics

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Two highly Cr (VI) resistant fungal strains, CSF‐1 and CSF‐2, were isolated and identified as Cladosporium sp. and Penicillium sp., respectively, using 18S rRNA gene sequencing. At optimized growth conditions, the dead biomass of Cladosporium sp. and Penicillium sp. has removed more than 99% of the supplemented Cr(VI). The kinetic study outcomes evidenced that the present fungal Cr(VI) biosorption is best fitting with the pseudo‐first‐order model with higher R2 values (i.e., 0.70–0.95) than that of the pseudo‐second‐order kinetic model (R2 = 0.02–0.73). After analyzing the R2 values, it was observed that the Langmuir and Freundlich isotherm models best fit the Cr(VI) biosorption employing fungal biomass.

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Section: Resultsmentioning

confidence: 99%

Section: 51mentioning

confidence: 99%

Section: 51mentioning

confidence: 99%

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Kinetic modeling and isotherm approach for biosorptive removal of hexavalent chromium using heat inactivated fungal biomass

Das¹,

Behera

Mohapatra

et al. 2023

Int J of Chemical Kinetics

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“…19 The removal of the dye is warranted by adopting a suitable adsorbent to minimize the level of contamination. 20 Hydroxyapatite is studied as an adsorbent to reduce dyes and heavy metal concentration in water. 19,21,22 To our knowledge, there is no study on the use of natural hydroxyapatite for reduction of Congo red dye concentration in water.…”

Section: Introductionmentioning

confidence: 99%

“…Hydroxyapatite has a positive and negative charge at its surface resulting from the presence of calcium (Ca +2 ), phosphate (PO 4 −3 ), hydroxyl (OH − ) ion which makes it possible to produce a bond with other atoms resulting in high adsorption ability 19 . The removal of the dye is warranted by adopting a suitable adsorbent to minimize the level of contamination 20 . Hydroxyapatite is studied as an adsorbent to reduce dyes and heavy metal concentration in water 19,21,22 .…”

Section: Introductionmentioning

confidence: 99%

A new application of Hydroxyapatite extracted from dromedary bone: Adsorptive removal of Congo red from aqueous solution

Ghedjemis

Ayeche

Benouadah³

et al. 2021

Int J Applied Ceramic Tech

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The aim of this paper is to evaluate the efficiency of the natural hydroxyapatite powder for anionic dye (Congo red) elimination from water and optimization of adsorption process parameters that are contact time (0-360 min), solution pH (4-9), initial dye concentration (400-2400 mg/l), and adsorbent dosage (0.4-20 g/l). Natural hydroxyapatite with high surface area was prepared from animal agriculture waste dromedary bone. X-ray diffraction, transmission electron microscopy, transform infrared spectroscopy, and elemental analysis characterizations of the powder prepared show a hexagonal structure, the irregular form of hydroxyapatite and presence of other elements as trace element. The results of adsorption tests demonstrated the high efficiency of natural hydroxyapatite for removal of Congo red from water solution whose maximum experimental capacity adsorption of Congo red by natural hydroxyapatite is 900 mg/g at pH 4.5, equilibrium time 240 min and adsorbent dosage 2 g/l. According to the correlation coefficient value, the pseudo-second order kinetic model identified the sorption mechanism of pollutant used on natural hydroxyapatite.The Freundlich isotherm is the best representative theoretical model of the dye molecules' adsorption on the natural hydroxyapatite support.

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The removal of methyl violet dye from wastewater by L-cysteine-reduced graphene oxide nanocomposite: kinetic and thermodynamic studies

2023

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Kinetics, Thermodynamics and Isotherm Studies on Adsorption of Methyl Violet from Aqueous Solution Using Activated Bio-Adsorbent: Phragmites karka

Cited by 17 publications

References 0 publications

Kinetic modeling and isotherm approach for biosorptive removal of hexavalent chromium using heat inactivated fungal biomass

Kinetic modeling and isotherm approach for biosorptive removal of hexavalent chromium using heat inactivated fungal biomass

A new application of Hydroxyapatite extracted from dromedary bone: Adsorptive removal of Congo red from aqueous solution

The removal of methyl violet dye from wastewater by L-cysteine-reduced graphene oxide nanocomposite: kinetic and thermodynamic studies

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