Fabrication of mechanical robust keratin adsorbent by induced molecular network transition and its dye adsorption performance

Environmental Science and Pollution Research International
Weiming ZhuKaili Song

Abstract

Keratin-based adsorbents showed a great potential in environmental pollution remediation. However, fabrication of keratin adsorbent with an excellent performance remains a challenging issue mainly because of its poor mechanical properties. In this research, mechanical-reinforced keratin adsorbent was designed and engineered at mesoscopic scale by the induced molecular network transition method. It was found that the β-crystallite structure of silk fibroin template could induce the transformation of free unfolded molecular chains of keratin to β-sheet conformation in the keratin adsorbent and further resulted in the controllable manipulation of the mechanical properties of the adsorbent. The prepared keratin adsorbent exhibited an excellent adsorption performance for Reactive Black 5 (RB5). The qe and removal efficiency for RB5 by the adsorbent could reach as high as 550 mg/g and 95.3%, respectively. The adsorbent exhibited an excellent regeneration and recycle performance due to its mechanical reinforcement. The facile molecular network-induced reconstruction strategy is both straightforward and effective for fabricating mechanical robust adsorbent for environmentally pollutant remediation. Graphical abstract.

References

Jun 11, 2014·Journal of Agricultural and Food Chemistry·Xiao-kun OuYangChong-Yu Wang
Jun 12, 2019·Journal of Environmental Management·Zahra Shamsollahi, Ali Partovinia
Dec 19, 2019·International Journal of Cosmetic Science·Keith R Millington, Jennifer M Marsh

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Citations

Jan 10, 2021·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Ji JiXuerong Fan

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