Adsorption of polycyclic aromatic hydrocarbons (PAHs) in soil and water on pyrochars: A review

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Environmental Chemical Engineering Pub Date : 2025-03-06 DOI:10.1016/j.jece.2025.116081

Lishi Tang , Panpan Wang , Chengze Yu , Ning Jiang , Jiaqi Hou , Jun Cui , Shuaishuai Xin , Yanjun Xin , Mingxiao Li

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引用次数: 0

Abstract

Polycyclic aromatic hydrocarbons (PAHs) are persistent organic pollutants that pose severe environmental and human health risks. Given their chemical stability and hydrophobicity, PAHs tend to accumulate in soil and water, leading to long-term contamination. Effective remediation strategies are urgently required to mitigate these risks. Pyrochars have gained increasing attention due to their high adsorption capacity, cost-effectiveness, and environmental sustainability. This review systematically examines the application of pyrochars in PAHs removal, focusing on their adsorption mechanisms and influencing factors. Pyrochars exhibit adsorption capacities ranging from 2.0 mg/g to 384 mg/g under optimal conditions. Their adsorption is primarily governed by pore filling, π–π interactions, and hydrogen bonding, with variations depending on PAHs molecular structure and pyrochars surface properties. Additionally, the review highlights the potential applications of pyrochars in environmental remediation and provides insights for future research on enhancing their performance. This study contributes to the development of sustainable and efficient strategies for PAHs pollution control.

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来源期刊

Journal of Environmental Chemical Engineering Environmental Science-Pollution

CiteScore

11.40

自引率

6.50%

发文量

2017

审稿时长

27 days

期刊介绍： The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.