Biomass-derived functional porous carbons for adsorption and catalytic degradation of binary micropollutants in water

Wenjie Tian, Hongqi Sun, Xiaoguang Duan, Huayang Zhang, Yongxiang Ren, Shaobin Wang

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69 Citations (Scopus)

Abstract

The biomass, bottlebrush flower, is exploited for the preparation of functionalized porous carbons by one-pot thermal activation using NaHCO3 and dicyandiamide. An intensified cross-linking effect among the precursors boosts pore (especially mesopore) formation in the pyrolysis process, producing N-doped porous carbons (NPCs) with a large specific surface area (SSA, up to 2025 m2 g−1). The biomass-derived carbon samples turn out to be highly effective in adsorption, and catalytic activation of peroxymonosulfate for degradation of aqueous phenol and p-hydroxybenzoic acid (HBA) in single and binary systems. The effects of N content, porous structure, and trace Ni species on the adsorptive and catalytic behavior of carbon are investigated. It is found that the porous structure plays a more critical role in adsorption than surface N functionality, while the contributions of various reactive species for phenol and HBA degradation are different.

Original languageEnglish
Article number121881
JournalJournal of Hazardous Materials
Volume389
DOIs
Publication statusPublished - 5 May 2020
Externally publishedYes

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