A green 3-step combined modification for the preparation of biomass sorbent from waste chestnut thorns shell to efficient removal of methylene blue

被引：18

作者：

Wei, Wenguang ^{[1
]}

Shang, Nan ^{[1
]}

Zhang, Xun ^{[1
]}

Liu, Wen ^{[1
]}

Zhang, Tong ^{[1
]}

Wu, Min ^{[1
]}

机构：

[1] China Agr Univ, Coll Engn, 17 Qinghua East Rd, Beijing 100083, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2022年 / 360卷

基金：

中国国家自然科学基金;

关键词：

Chestnut thorns shell; Biomass sorbent; Methylene blue; Adsorption; Green technique; ADSORPTIVE REMOVAL; HYDROGEL BEADS; WHEAT-STRAW; CELLULOSE; FIBER; CRYSTALLINITY; NANOPARTICLES; BEHAVIOR; DYES; SIZE;

D O I：

10.1016/j.biortech.2022.127593

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Although several green methods for the preparation of biomass adsorbents have been proposed, the low adsorption performance of the biomass adsorbents prepared by these methods has limited the development of this technological route. This is the first work that uses an ultrasound-assisted binary solvent system and low temperature ice crystal fixation to achieve high adsorption performance of a biomass sorbent. Chestnut thorns shell (CTS) sorbent with high adsorption performance on MB was successfully prepared with an adsorption performance of 305.81 mg/g, which is on par with most high temperature carbonized adsorbents. Further reaction kinetics, TEM, XPS and FTIR studies showed that the MB adsorption of CTS was through electrostatic attraction, hydrogen bonding, ion-dipole interaction and pi-pi interaction. After five cycles, the adsorption capacity of the adsorbent remained at a high level. This work provided an effective strategy for safer and greener preparation of high adsorption performance adsorbents from agroforestry waste.

引用

页数：8

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