کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1694193 | 1519062 | 2016 | 6 صفحه PDF | دانلود رایگان |
• White colored Mg–Fe layered double hydroxides with chloride anions were synthesized.
• Mg–Fe layered double hydroxide was reduced through a melted sugar alcohol treatment.
• Mg–Fe layered double hydroxides can be utilized as reusable adsorbents and reductants.
The syntheses of Mg–Fe(III) layered double hydroxides with different compositions at varied temperature through a co-precipitation method were attempted. The well-crystallized and white colored layered double hydroxides with chloride anions were obtained from the samples adjusted to the composition of Mg/Fe = 4 and aged at higher temperature. The Fe species in the white colored Mg–Fe layered double hydroxides were evaluated as all Fe(III) species by a Mössbauer measurement. The synthesized Mg–Fe(III) layered double hydroxide was treated with a sugar alcohol at temperature above its melting point in order to reduce Fe(III) incorporated into the hydroxide layers. The Mg–Fe layered double hydroxide resulting from a sugar alcohol treatment showed the reduction property in an aqueous solution.
The white colored Mg–Fe layered double hydroxide powder turned into a greenish white in a color after the treatment with sugar alcohol at 180 °C for 1 h. The reduced Mg–Fe layered double hydroxide showed the reduction property in an aqueous solution.Figure optionsDownload as PowerPoint slide
Journal: Applied Clay Science - Volumes 121–122, March 2016, Pages 71–76