Fabrication of a novel functional CNC cross-linked and reinforced adsorbent from feather biomass for efficient metal removal. (15th October 2019)

• Record Type: Journal Article
• Authors: Song, Kaili; Qian, Xunnan; Li, Xiaoyan; Zhao, Yi; Yu, Zhicheng
• Is Part Of: Carbohydrate polymers. Volume 222(2019)
• Publication Date: 2019-10-15
• Subjects: Protein adsorbent -- Dialdehyde cellulose nanocrystals -- Adsorption -- Heavy metal removal; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2019.115016
• Languages: English
• ISSNs: 0144-8617

Abstract

Graphical abstract: Highlights: DCNCs reinforced keratin adsorbent was developed for metal ions removal. Mechanical properties of the adsorbent improved greatly. Maximum adsorption capacity for Pb 2+ and Cd 2+ was 767 and 517 mg/g, respectively. The adsorbent exhibited excellent recyclability. Fixed bed column study verified the excellent performance of the adsorbent. Abstract: In this research, an innovative biomass derived spongy adsorbent was fabricated by adopting dialdehyde cellulose nanocrystals (DCNC) as crosslinking and reinforcing building block, which showed high mechanical strength, satisfying adsorption performance and good recyclability. The improved shape integrity and specific surface area resulted from DCNC incorporation contribute to high adsorption performance of this sponge. Adsorption behaviors of the adsorbent were comprehensively studied. The qe for Pb 2+ and Cd 2+ by the adsorbent could reach as high as 767 and 517 mg/g, respectively. Also, this adsorbent showed excellent recyclability. In addition, the adsorbent exhibited satisfying fixed-bed column adsorption performance. Thus, it could be considered as promising high efficiency adsorbent.