What question did this study set out to answer?

The aim is to enhance the extraction of humic acid from weathered coal using CuO nanoparticles.

February 19, 2026RSC Advances0 citationsOpen Access

Boosting the extraction of humic acid from HCl-activated weathered coal catalyzed by oxygen vacancy-rich CuO nanoparticles

Q: What does this research mean for the field?

A pretreatment-catalytic oxidation coupling strategy significantly enhances the extraction of humic acid from HCl-activated weathered coal. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

XCXianglei Cao YGYongsheng Gao ZCZhanwen Cao

Key Points

The aim is to enhance the extraction of humic acid from weathered coal using CuO nanoparticles.
Proposed a pretreatment-catalytic oxidation coupling strategy
Utilized HCl-activated weathered coal
Employed oxygen vacancy-rich CuO nanoparticles as catalysts
Significant improvement in humic acid extraction was achieved
Enhanced extraction efficiency observed compared to conventional methods

Abstract

A pretreatment-catalytic oxidation coupling strategy is proposed to significantly enhance humic acid extraction.

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