Preparation of hierarchical porous carbons from sodium carboxymethyl cellulose via halloysite template strategy coupled with KOH-activation for efficient removal of chloramphenicol

Ruilong Zhang, Zhiping Zhou, Atian Xie, Jiangdong Dai, Jiuyun Cui, Jihui Lang, Maobin Wei, Xiaohui Dai, Chunxiang Li, Yongsheng Yan

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The wide applications of antibiotics in human and veterinary medicines have attracted ever-increasing attention due to their potential adverse effects for ecological environment, therefore, it is urgent and important to efficiently remove antibiotics from water. In this paper, we prepared hierarchical porous carbons from sodium carboxymethyl cellulose (CMCHPCs) via halloysite template and KOH-activation method for efficient removal of chloramphenicol. The physicochemical properties of CMCHPCs are analyzed by means of different characterizations. The adsorption properties of CMCHPCs are evaluated by equilibrium, kinetic, and thermodynamic adsorption experiments. In addition, the effects of ionic strength, solution pH, and humic acid on adsorption are studied. The results indicated CMCHPCs exhibit higher maximum monolayer adsorption capacity up to 769.95 mg/g and shows good regenerability and adaptability. Importantly, the adsorption mechanisms of chloramphenicol adsorbed onto the CMCHPCs are also discussed.

Original languageEnglish
Pages (from-to)424-433
Number of pages10
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume80
DOIs
StatePublished - Nov 2017
Externally publishedYes

Keywords

  • Antibiotics removal
  • Biomass
  • Halloysite template
  • Hierarchical porous carbon materials
  • KOH-activation

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