| Title |
Preparation of MIL100/MIL101-alginate composite beads for selective phosphate removal from aqueous solution |
| ID_Doc |
29344 |
| Authors |
Alvares, E; Tantoro, S; Julius, C; Cheng, KC; Soetaredjo, FE; Hsu, HY; Angkawijava, AE; Go, AW; Hsieh, CW; Santoso, SP |
| Title |
Preparation of MIL100/MIL101-alginate composite beads for selective phosphate removal from aqueous solution |
| Year |
2023 |
| Published |
|
| DOI |
10.1016/j.ijbiomac.2023.123322 |
| Abstract |
Numerous studies have reported various approaches for synthesizing phosphate-capturing adsorbents to mitigate eutrophication. Despite the efforts, concerns about production cost, the complexity of synthesis steps, environmental friendliness, and applicability in industrial settings continue to be a problem. Herein, phosphate-selective composite adsorbents were prepared by incorporating alginate (Alg) with MIL100 and MIL101 to produce the MIL100/Alg and MIL101/Alg beads, where Fe3+ served as the crosslinker. The unsaturated coordination bond of MIL100 and MIL101 serves as a Lewis acid that can attract phosphate. The adsorption equilibrium isotherm, uptake kinetics, and effects of operating parameters were studied. The phosphate adsorption capacity of MIL100/ Alg (103.3 mg P/g) and MIL101/Alg (109.5 mg P/g) outperformed their constituting components at pH 6 and 30 degrees C. Detailed evaluation of the adsorbent porosity using N2 sorption reveals the formation of mesoporous structures on the Alg network upon incorporation of MIL100 and MIL101. The composite adsorbents have excellent selectivity toward anionic phosphate and can be easily regenerated. Phosphate adsorption by MIL100/ Alg and MIL101/Alg was driven by electrostatic attraction and ligand exchange. Preliminary economic analysis on the synthesis of the adsorbents indicates that the composites, MIL100/Alg and MIL101/Alg, are economically viable adsorbents. |
| Author Keywords |
Phosphate adsorption; Hard soft acid base theory; MOF-alginate composite |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000926803800001 |
| WoS Category |
Biochemistry & Molecular Biology; Chemistry, Applied; Polymer Science |
| Research Area |
Biochemistry & Molecular Biology; Chemistry; Polymer Science |
| PDF |
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