Effect of loading and H₂O wetness of hydrogel biochar derived from EFB for H₂S gas sorption: article

Hydrogel biochar is the non-toxic, biocompatibility and water absorbent polymeric materials, evaluated for their characterization and ability to absorb hydrogen sulfide (H₂S) in gas phase. The H₂S gas is very hazardous gas as it is produced from natural and human-made process and due to its higher density than air, it become more dangerous to the atmosphere. The purpose of conducting this research were to determine the characterization of empty fruit bunch hydrogel biochar, HBC-EFB in removal of H₂S gas and to determine the ability of HBC-EFB in absorption of H₂S gas. In order to achieved the objective of this research, the empty fruit bunch hydrogel biochar (HBC-EFB) was prepared by using acrylamide (AAm) as monomer, with N-N’methylenebisacrylamide (MBA) as crosslinker and ammonium persulfate as initiator. The HBC-EFB was characterized by using Thermal Gravimetric Analyzer (TGA), Elemental Analyzer (EA), Brunaeur Emmet Teller (BET) and Scanning Electron Microscopy (SEM). The absorption rate of HBC-EFB was determine by using Multi Sorption Bed. The experimental data showed that the absorption rate of HBC-EFB was efficient when the bed was full up to three bed with 91% absorption in wet condition.