Here we report a comparative study on the bottom-up synthesis of multi-element hydroxides composed of Mg, Al, Fe and Zn cations to understand the role of solvents. Two common solvents, water and ethylene glycol, a typical polyol, are used. The polyol-derived MgAlFeZn-OH are nanosheets with homogeneous elemental distribution, while the hydrothermal-derived MgAlFeZn-OH are mixtures of plate-like hydroxide layers and rod-like spinel oxides. The coordinating properties and the high viscosity of the ethylene glycol provide the possibility to mediate the hydrolysis rates and to control the particle growth. The high specific surface area of the polyol-derived multi-element hydroxide nanosheets (352.4 m g) guarantees them as excellent adsorbents for adsorbing anionic dyes in aqueous solution.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10758770 | PMC |
| http://dx.doi.org/10.1039/d3ra07344k | DOI Listing |
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