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Fe(III)–Chitosan Microbeads for Adsorptive Removal of Cr(VI) and Phosphate Ions
| Content Provider | MDPI |
|---|---|
| Author | Tandekar, Swati A. Pande, Manoj A. Shekhawat, Anita Fosso-Kankeu, Elvis Pandey, Sadanand Jugade, Ravin M. |
| Copyright Year | 2022 |
| Description | Fe(III)–chitosan microbeads (Fe–CTB) were prepared using a chemical coprecipitation method. SEM–EDX, FTIR, XRD, TGA, BET, and pH$ _{pzc}$ were performed for the characterization of the adsorbent. Various parameters were optimized as pH, adsorption time, adsorbent dose, initial Cr(VI), and PO_{4}$^{3−}$ ion concentration and the effect of assorted ions for adsorption studies. Fe–CTB microbeads revealed more than 80% detoxification for a 100 mg $L^{−1}$ initial concentration at pH 3 with 60 min stirring of Cr(VI) and PO_{4}$^{3−}$ ion having adsorption capacities of 34.15 and 32.27 mg $g^{−1}$, respectively. The adsorption process for Cr(VI) and PO_{4}$^{3−}$ ion followed the monolayer adsorption as they favored the Langmuir isotherm model. Kinetic and thermodynamic studies’ emphasis on the adsorption process was spontaneous and exothermic with pseudo-second-order kinetics for both adsorbates. The microbeads were found to be reusable in multiple cycles. |
| Starting Page | 874 |
| e-ISSN | 2075163X |
| DOI | 10.3390/min12070874 |
| Journal | Minerals |
| Issue Number | 7 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-11 |
| Access Restriction | Open |
| Subject Keyword | Minerals Environmental Engineering Chitosan Fe(iii)–chitosan Composite Chromate Phosphate Adsorption |
| Content Type | Text |
| Resource Type | Article |
