Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell

Khamwichit, Attaso; Dechapanya, Wipawee; Dechapanya, Wipada

doi:10.1016/j.heliyon.2022.e09610

Cited by 33 publications

(16 citation statements)

References 58 publications

(75 reference statements)

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“…From the results obtained, it can be concluded that the AB113 adsorption using both adsorbents and MB dye adsorption using NaOH-PFL are chemical adsorption processes that involved electron exchange between the adsorbents’ surface and dye molecules. , Contradictorily, the MB dye appears to be strongly adsorbing onto Raw-PFL via an I-P diffusion mechanism. I-P diffusion may not be the only process limiting as evidenced by the q t versus t 1/2 intercept of not crossing the point of origin. , The P-S-O model with R 2 = 0.8805 indicates that chemisorption could also be another rate-limiting step for MB dye adsorption on Raw-PFL. The results obtained is in line with those reported previously. ,− …”

Section: Resultsmentioning

confidence: 95%

“…I-P diffusion may not be the only process limiting as evidenced by the q t versus t 1/2 intercept of not crossing the point of origin. 82,89 The P-S-O model with R 2 = 0.8805 indicates that chemisorption could also be another rate-limiting step for MB dye adsorption on Raw-PFL. The results obtained is in line with those reported previously.…”

Section: Characterization Of Adsorbents 311 Surfacementioning

confidence: 99%

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Sustainable Dye Adsorption Using Novel Activated Carbon Prepared from Passion Fruit (Passiflora edulis) Leaf: Mechanism and Cost Analysis

Tan,

Abdul Raman,

Zainal Abidin

et al. 2023

Ind. Eng. Chem. Res.

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Section: Resultsmentioning

confidence: 95%

Section: Characterization Of Adsorbents 311 Surfacementioning

confidence: 99%

Sustainable Dye Adsorption Using Novel Activated Carbon Prepared from Passion Fruit (Passiflora edulis) Leaf: Mechanism and Cost Analysis

Tan,

Abdul Raman,

Zainal Abidin

et al. 2023

Ind. Eng. Chem. Res.

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“…There were slight differences in parameter K 1 among all the biochars and AC for both Cd(II) and Pb(II) adsorption in both single- and bisolute systems (Table ). This model is based on the assumption that one adsorption active site occupies one adsorbate molecule . The nonlinear reverse fitting graphs are given in Figure , where the experimental data points largely differ from model calculations.…”

Section: Resultsmentioning

confidence: 99%

Adsorption Kinetics of Cadmium and Lead by Biochars in Single- and Bisolute Brackish Water Systems

Rafiq,

Wongrod,

Vinitnantharat

2023

ACS Omega

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“…It is noteworthy to report that FTIR analytical technique has not enough sensitivity to detect an adsorbate uptaken by an adsorbent, although this is a common presentation of the FTIR data in the literature [ 44 , 45 , 46 , 47 , 48 , 49 , 50 ]. Furthermore, the usual resolution of FTIR equipment is 4 cm −1 ; therefore, any band shift < 12 cm −1 could not be assigned to any bond between the adsorbate and the adsorbent.…”

Section: Resultsmentioning

confidence: 99%

Biosorption of Neodymium (Nd) from Aqueous Solutions Using Spirulina platensis sp. Strains

et al. 2022

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Rare earth elements such as neodymium (Nd) are important elements used mainly in developing new technologies. Although they are found in low concentrations in nature, they can be obtained by extracting solid samples such as phosphogypsum. Among the techniques, adsorption has been used successfully with several adsorbent materials. In this work, two strains of Spirulina platensis (LEB-18 and LEB-52) were employed as biosorbents for efficiently removing the Nd element from the aqueous media. Biosorption tests were carried out in a batch system, and the results of the biosorption kinetics showed that for both materials, the biosorption of Nd was better described by the Avrami model. Moreover, it could be considered that 80 min would be necessary to attain the equilibrium of Nd(III) using both biosorbents. The result of the biosorption isotherms showed that for both strains, the best-fitted model was the Liu model, having a maximum biosorption capacity of 72.5 mg g−1 for LEB-18 and 48.2 mg g−1 for LEB-52 at a temperature of 298 K. Thermodynamics of adsorption showed that for both LEB-18 and LEB-52 the process was favorable (∆G° < 0) and exothermic (∆H° −23.2 for LEB-18 and ∆H° −19.9 for LEB-52). Finally, both strains were suitable to uptake Nd, and the better result of LEB-18 could be attributed to the high amount of P and S groups in this biomass. Based on the results, a mechanism of electrostatic attraction of Nd3+ and phosphate and sulfate groups of both strains of Spirulina platensis was proposed.

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Adsorption kinetics and isotherms of binary metal ion aqueous solution using untreated venus shell

Cited by 33 publications

References 58 publications

Sustainable Dye Adsorption Using Novel Activated Carbon Prepared from Passion Fruit (Passiflora edulis) Leaf: Mechanism and Cost Analysis

Sustainable Dye Adsorption Using Novel Activated Carbon Prepared from Passion Fruit (Passiflora edulis) Leaf: Mechanism and Cost Analysis

Adsorption Kinetics of Cadmium and Lead by Biochars in Single- and Bisolute Brackish Water Systems

Biosorption of Neodymium (Nd) from Aqueous Solutions Using Spirulina platensis sp. Strains

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