Preparation of porous materials derived from waste mussel shell with high removal performance for tableware oil

Abstract

In this work, carbonized mussel shell powder (CMSP) was modified by alkyl polyglucosides (APG) and rhamnolipid (RL) to render porous biomass a lipophilic surface, which was innovatively utilized as an environmentally friendly tableware cleaning material. The modified method was two-step hydrotherm-assisted synthesis. A contact angle meter was used to determine the surface hydrophobic property of modified samples (MTAR). The pore and the surface structure of CMSP and MTAR were characterized by BET, SEM, XRD, FTIR and XPS. The effect of removing oil was tested by gravimetric method. The results showed that the surface of MTAR was more porous and fluffier than CMSP, and the specific surface area is increased by 16.76 times. The results showed that when calcining CMSP at 1000°C, the oil removal rate of the synthesized MTAR is the best, and the decontamination rate can reach 87.05%. This research aims to develop a green and environmentally-friendly tableware cleaning material, solve environmental problems, and make full use of waste, which is very conducive to environmental protection.