Preparation: |
synthesized according to a modified method of [SC00]: 28.466 gFeCl3∙6H2O was added to 380 ml of 1.1 M KOH solution while stirring rapidly; the resulting precipitate was held in a polypropylene bottle and heated at 65 °C for 4 days; solids were thrice washed with deionized (DI) water, freeze dried, ground with mortar and pestle, and passed through a 106-μm pore size sieve for a more uniform particle size |