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One-step pyrolysis of lignin and polyvinyl chloride for synthesis of porous carbon and its application for toluene sorption.

Abstract：

:The aim of this work aims to synthesize the high performance porous carbons from lignin and rice husk (RH) via one-step pyrolysis with KOH and PVC. And those porous carbons were evaluated for toluene sorption. The unactivated biochars had ultralow specific surface area (SBET). By co-pyrolysis of biomass with KOH, the SBET of bio-carbon was significantly improved. The addition of PVC can further enhance the SBET. Additionally, the SBET of lignin-carbons was higher than that of RH-carbons. It was attributed to the destruction of pore structures in the RH chars with high salts by the washing process. Compared with the RH carbons, the lignin carbons had a higher micro-porosity. As for toluene sorption, the maximum breakthrough time (2195 min) and sorption capacity (263.4 mg g-1) were achieved using LPKC. The textural properties (e.g., pore volume, micro-porosity, and hierarchically porous structure) can take significant effects on the sorption process.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Zhang N,Shen Y

doi

10.1016/j.biortech.2019.03.149

subject

Has Abstract

pub_date

2019-07-01 00:00:00

pages

325-332

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(19)30523-1

journal_volume

284

pub_type

杂志文章

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