Preparation of Fe-dispersed porous carbons from iron alum/carboxymethylcellulose gels and their application to volatile organic compound adsorption
Source abstract
Abstract
The simple preparation of porous carbons with highly-dispersed metal particles and no additional activation by gelating iron alum and carboxymethylcellulose sodium (CMC-Na) was investigated. Various porous carbons with different pore structures were prepared by varying the mass ratio of iron alum to CMC-Na. In carbonizing the gels, Na2CO3 by-product acted as an activator and promoted pores formation by decomposing over 700 °C. Carbonization of the CMC-Na xerogels with more Fe content resulted in the formation of α-iron (iron(cI2)) nanocrystals in porous carbons. Because the carbons exhibited typical ferromagnetic behavior, they could be collected by a neodymium magnet in water. The porous carbons which include other sodium compounds that improved adoption for volatile organic compound (VOC) demonstrated good VOC removal abilities compared to a commercial activated carbon. Their developed pores would facilitate accessing of VOC adsorbates to the carbon.
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Research context
OpenAlex topics: Nanomaterials for catalytic reactions · Supercapacitor Materials and Fabrication · Adsorption and biosorption for pollutant removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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