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Iron(II) Sulfate(VI) from Titania Production as a Raw Material for Preparation of Hydrogen Sulfide Sorbents
Author(s) -
Pilczuk Szymon,
Wróbel Rafał,
Pietrzak Robert,
Przepiórski Jacek
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800452
Subject(s) - raw material , hydrogen sulfide , sorbent , activated carbon , chemistry , sulfate , sulfide , carbon fibers , iron sulfide , hydrogen production , iron sulfate , inorganic chemistry , nuclear chemistry , hydrogen , materials science , adsorption , sulfur , organic chemistry , composite number , composite material
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 (Fe 2+ to Fe 3+ ) using atmospheric oxygen under alkaline conditions. An effect of H 2 O 2 addition to the process on the composition of the resultant material was also examined. X‐ray diffraction (XRD) analyses confirmed easy conversion of waste FeSO 4 ·7H 2 O to iron oxides Fe 3 O 4 and FeOOH. The activated carbon supporting iron oxides revealed a higher efficiency in H 2 S elimination from air compared to the commercial activated carbon, without any modification.