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

Author Identifier (ORCID)

Hongqi Sun

ORCID : https://orcid.org/0000-0003-0907-5626

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. © 2019 Elsevier B.V.

Keywords

Adsorption, Advanced oxidation processes, Biomass, Functionalized porous carbon, Multicomponent systemAdsorption, Biomass, Carbon, Chemical activation, Doping (additives), Phenols, Porosity, Porous materials, Sodium bicarbonate, Advanced Oxidation Processes, Catalytic activation, Catalytic behavior, Catalytic degradation, Large specific surface areas, Multi-component systems, P-Hydroxybenzoic acid, Porous carbons, Biodegradation, activated carbon, adsorption, biomass, catalysis, degradation, oxidation, pyrolysis, water pollution, Callistemon

Document Type

Journal Article

Date of Publication

1-1-2020

Publication Title

Journal of Hazardous Materials

Publisher

Elsevier BV

School

School of Engineering

RAS ID

31382

Funders

Australian Research Council

Grant Number

ARC Number : DP190103548

Comments

Tian, W., Sun, H., Duan, X., Zhang, H., Ren, Y., & Wang, S. (2020). Biomass-derived functional porous carbons for adsorption and catalytic degradation of binary micropollutants in water. Journal of Hazardous Materials, 389, Article 121881.

https://doi.org/10.1016/j.jhazmat.2019.121881

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Link to publisher version (DOI)

10.1016/j.jhazmat.2019.121881