Application of a Low-Cost Cellulose-Based Bioadsorbent for the Effective Recovery of Terbium Ions from Aqueous Solutions
Abstract
:1. Introduction
2. Materials and Methods
2.1. From Rose Stems to a CRS Bioadsorbent
2.2. Characterization of the Bioadsorbent
2.3. Adsorption Experiments
2.4. Desorption Experiments
3. Results
3.1. Characterization of the Bioadsorbent
3.2. Adsorption Experiments
3.2.1. pH Influence
3.2.2. Influence of the Adsorbent Dosage
3.2.3. Influence of the Temperature
4. Discussion
4.1. Characterization of the Bioadsorbent
4.2. Adsorption Experiments
4.2.1. pH Influence
4.2.2. Influence of the Adsorbent Dosage
4.2.3. Influence of the Temperature
4.2.4. Adsorption Isotherms
4.2.5. Kinetics Studies
4.2.6. Desorption Experiments
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Isotherm Model | Parameter Value | |
---|---|---|
Langmuir | qm (mg/g) | 48.47 |
b (L/mg) | 0.25 | |
R2 | 0.9094 | |
Freundlich | kF (mg/g)·(L/mg) | 10.07 |
n (dimensionless) | 1.57 | |
R2 | 0.9823 | |
Temkin | AT (L/g) | 1.04 |
B (J/mol) | 10.18 | |
R2 | 0.9539 |
Cellulose Precursor | Metal | pH | Maximum Adsorption (mol/g) | Isotherm Model | Kinetic Model | References |
---|---|---|---|---|---|---|
Torrefied poplar biomass | Tb(III) | 4 | 0.06 | Sips | pseudo-second-order | [11] |
KMnO4-modified pineapple bran | Cu(II) | 7 | 0.11 | Freundlich | pseudo-second-order | [61] |
Thiol-functionalized cellulose acetate | Cu(II) | 4 | 0.62 | Langmuir | pseudo-second-order | [62] |
Thiol-functionalized cellulose acetate | Cd(II) | 4 | 0.27 | Langmuir | pseudo-second-order | [62] |
Thiol-functionalized cellulose acetate | Pb(II) | 4 | 0.09 | Langmuir | pseudo-second-order | [62] |
Citric acid-modified cellulose from E. crassipes | Zn(II) | 6 | 0.13 | ---- | ---- | [63] |
Citric acid-modified cellulose from E. crassipes | Cu(II) | 6 | 0.29 | ---- | ---- | [63] |
Citric acid-modified cellulose from E. crassipes | Cd(II) | 6 | 0.38 | ---- | ---- | [63] |
Citric acid-modified cellulose from E. crassipes | Pb(II) | 6 | 0.10 | ---- | ---- | [63] |
Bagasse pulp | Cu(II) | 5 | 0.55 | Freundlich | pseudo-second order | [64] |
Thiourea-functionalized commercial cellulose | Eu(III) | --- | 0.18 | Langmuir | pseudo-second-order | [15] |
Thiourea-functionalized commercial cellulose | Nd(III) | --- | 0.51 | Langmuir | pseudo-second-order | [15] |
Rose stems | Tb(III) | 5 | 0.16 | Freundlich | pseudo-second order | This work |
Kinetic Model | 20 °C | 40 °C | 60 °C |
---|---|---|---|
pseudo-first order | 0.9791 | 0.9566 | 0.9579 |
pseudo-second order | 0.9982 | 0.9983 | 0.9984 |
Elovich | 0.9894 | 0.9838 | 0.9631 |
Bangham | 0.9198 | 0.8898 | 0.8586 |
Eluent Solution | Volume Solution per Gram of Bioadsorbent (mL/g) | [Tb3+] in the Equilibrated Solution (mg/L) | Desorption (%) |
---|---|---|---|
H2SO4 (0.2 M) | 1250 | 8.1 | 63 |
2500 | 4.7 | 73 | |
5000 | 2.4 | 75 | |
HCl (0.2 M) | 1250 | 9.2 | 72 |
2500 | 4.8 | 75 | |
5000 | 2.6 | 81 | |
HCl (0.5 M) | 1250 | 10.1 | 79 |
2500 | 5.4 | 84 | |
5000 | 3.1 | 97 |
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Alcaraz, L.; Saquinga, D.N.; López, F.; Lima, L.D.; Alguacil, F.J.; Escudero, E.; López, F.A. Application of a Low-Cost Cellulose-Based Bioadsorbent for the Effective Recovery of Terbium Ions from Aqueous Solutions. Metals 2020, 10, 1641. https://doi.org/10.3390/met10121641
Alcaraz L, Saquinga DN, López F, Lima LD, Alguacil FJ, Escudero E, López FA. Application of a Low-Cost Cellulose-Based Bioadsorbent for the Effective Recovery of Terbium Ions from Aqueous Solutions. Metals. 2020; 10(12):1641. https://doi.org/10.3390/met10121641
Chicago/Turabian StyleAlcaraz, Lorena, Dayana Nathaly Saquinga, Floralba López, Lola De Lima, Francisco J. Alguacil, Esther Escudero, and Félix A. López. 2020. "Application of a Low-Cost Cellulose-Based Bioadsorbent for the Effective Recovery of Terbium Ions from Aqueous Solutions" Metals 10, no. 12: 1641. https://doi.org/10.3390/met10121641