Removal of ciprofloxacin from water by millimeter-sized sodium alginate/ H3PO4 activated corncob-based biochar composite beads

被引：52

作者：

Chen, Jian ^{[1
]}

Ouyang, Jinbo ^{[1
]}

Cai, Xionghui ^{[1
]}

Xing, Xiaohong ^{[1
]}

Zhou, Limin ^{[1
]}

Liu, Zhirong ^{[1
]}

Cai, Di ^{[2
]}

机构：

[1] East China Univ Technol, Jiangxi Prov Key Lab Synthet Chem, Nanchang 330013, Jiangxi, Peoples R China

[2] Beijing Univ Chem Technol, Natl Energy Res & Dev Ctr Biorefinery, Beijing 100029, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2021年 / 276卷

基金：

中国国家自然科学基金;

关键词：

Ciprofloxacin; Biochar; Composite beads; Phase inversion; Sorption; EFFICIENT REMOVAL; POROUS CARBON; ADSORPTION; PHARMACEUTICALS; BIOMASS;

D O I：

10.1016/j.seppur.2021.119371

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The removal of ciprofloxacin (CIP) from aqueous system is of great significance for water treatment. Here, millimeter-sized sodium alginate/H3PO4 activated corncob-based biochar composite beads (SA-PB) were prepared by a facile phase inversion method. These beads were characterized with SEM, EDS, FTIR, XRD and Raman. Results showed that SA-PB beads were successfully prepared and endowed the merits from alginate and biochar. SA-PB containing 80 wt% PB (SA-PB80) exhibited excellent CIP sorption capacity, which is much higher than pure SA and those containing 20 wt% and 50 wt% PB. Kinetic results showed that the sorption process could be fitted to pseudo-second-order model. The isotherm data indicated that sorption behavior conformed to the Langmuir model. Furthermore, SA-PB exhibited high tolerance to ionic strength and favorable reusability, and SA-PB also has plentiful desirable advantages such as biodegradability, economy and easily separable for solidliquid system as well as its efficient CIP capture performance.

引用

页数：9

共 38 条

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