Iron(II) Sulfate(VI) from Titania Production as a Raw Material for Preparation of Hydrogen Sulfide Sorbents

다국어 초록 (Multilingual Abstract)

A hybrid sorbent material for removal of hydrogen sulfide from air was developed. The material is based on activated carbon and iron compounds obtained from waste iron(II) sulfate(VI) heptahydrate. The iron salt is deposited on the carbonaceous support and subjected to oxidation (Fe2+ to Fe3+) using atmospheric oxygen under alkaline conditions. An effect of H2O2 addition to the process on the composition of the resultant material was also examined. X‐ray diffraction (XRD) analyses confirmed easy conversion of waste FeSO4·7H2O to iron oxides Fe3O4 and FeOOH. The activated carbon supporting iron oxides revealed a higher efficiency in H2S elimination from air compared to the commercial activated carbon, without any modification.
The possibility of using iron(II) sulfate(VI) heptahydrate, a critical by‐product from titanium white production, as a raw material for the creation of a hybrid sorbent material to remove hydrogen sulfide from air is evaluated. The activated carbon supporting iron oxides exhibited a higher efficiency in hydrogen sulfide elimination from air compared to commercial activated carbon.