Regeneration of a deactivated surface functionalised polyacrylonitrile supported Fenton catalyst for use in wastewater treatment

Abstract

Successful attempts to regenerate a used surface functionalised nanocoated polyacrylonitrile (PAN) catalyst are described here.

Transesterification reaction of tristearin (TS) & glycerol mono stearate (GMS) over surface basified PAN fibrous solid catalyst

“…The FTIR assignments of the ion exchange PANF can be found in Table 4 and as indicated in previous papers. 23,44 In short, the groups present on the ion exchange PAN consist of amidoximes (CN–OH) and hydrazines (C–NH–NH 2 ) Scheme 1.…”

Influence of lattice strain on Fe3O4@carbon catalyst for the destruction of organic dye in polluted water using a combined adsorption and Fenton process

“…For instance, many studies are conrming that the catalyst deactivation was mainly occurred due to extended leaching of iron into the solution. 19 In another study, Lejin Xu and Jianlong Wang concluded that the causes of deactivation was mainly due to surface oxidation of Fe 2+ to Fe 3+ by generated OH radicals during the course of reaction. Therefore, preserving the catalytic activity and stability is continue to be a challenging towards the Fenton oxidation reaction.…”