Highly efficient adsorbents based on hierarchically macro/mesoporous carbon monoliths with strong hydrophobicity

Guiju Tao, Lingxia Zhang, Zile Hua, Yu Chen, Limin Guo, Jiamin Zhang, Zhu Shu, Jianhua Gao, Hangrong Chen, Wei Wu, Ziwei Liu, Jianlin Shi

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

Hierarchically porous carbon monoliths (HPCMs) with both ordered hexagonal mesoporosity and three-dimensionally connected macroporosity were synthesized via a simple and time-saving hydrothermal process followed by a nanocasting pathway. These monoliths have high macropore volumes and specific surface areas, strong hydrophobicity, low densities and regular shapes. Importantly, these HPCMs showed excellent performance in cleaning/recycling spilled oils or organic solvents with high adsorption capacity, rate, stability, and reusability, and in adsorbing bilirubin with high adsorption capacity, blood compatibility and durability in plasma as well. The adsorption of oil was based on the dispersion interaction between gasoline molecules and the carbon basal planes of HPCMs, while the isotherm of bilirubin adsorption on the optimized HPCMs and the corresponding kinetic data were found better fitted by Langmuir adsorption model and pseudo-second-order kinetic model, respectively.

Original languageEnglish
Pages (from-to)547-559
Number of pages13
JournalCarbon
Volume66
DOIs
StatePublished - Jan 2014
Externally publishedYes

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