Applications and synergistic degradation mechanisms of nZVI-modified biochar for the remediation of organic polluted soil and water: A review

被引：35

作者：

Chen, Anqi ^{[1
]}

Wang, Haoran ^{[1
]}

Zhan, Xiuping ^{[2
]}

Gong, Kailin ^{[1
]}

Xie, Wenwen ^{[1
]}

Liang, Weiyu ^{[1
]}

Zhang, Wei ^{[1
]}

Peng, Cheng ^{[1
,3
]}

机构：

[1] East China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

[2] Shanghai Agr Technol Extens & Serv Ctr, Shanghai 201103, Peoples R China

[3] Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2024年 / 911卷

关键词：

nZVI-modified biochar; Organic pollutants; Soil and water remediation; Adsorption; Degradation; ZERO-VALENT IRON; REMOVAL; PERSULFATE; PYROLYSIS; SORPTION; NANOPARTICLES; CONTAMINANTS; ADSORPTION; PESTICIDES; REACTIVITY;

D O I：

10.1016/j.scitotenv.2023.168548

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Increasing organic pollution in soil and water has garnered considerable attention in recent years. Nano zero-valent iron-modified biochar (nZVI/BC) has been proven to remediate the contaminated environment effectively due to its abundant active sites and unique reducing properties. This paper provides a comprehensive overview of the application of nZVI/BC in organic polluted environmental remediation and its mechanisms. Firstly, the review introduced primary synthetic methods of nZVI/BC, including in-situ synthesis (carbothermal reduction and green synthesis) and post-modification (liquid-phase reduction and ball milling). Secondly, the application effects of nZVI/BC were discussed in remediating soil and water polluted by antibiotics, pesticides, polycyclic aromatic hydrocarbons (PAHs), and dyes. Thirdly, this review explored the mechanisms of the adsorption and chemical degradation of nZVI/BC, and synergistic degradation mechanisms of nZVI/BC-AOPs and nZVI/BC-Microbial interactions. Fourth, the factors that influence the removal of organic pollutants using nZVI/ BC were summarized, encompassing synthesis conditions (raw materials, pyrolysis temperature and aging of nZVI/BC) and external factors (reagent dosage, pH, and coexisting substances). Finally, this review proposed future challenges for the application of nZVI/BC in environmental remediation. This review offers valuable insights for advancing technology in the degradation of organic pollutants using nZVI/BC and promoting its on -site application.

引用

页数：15

共 153 条

[1] Bioengineered chitosan-magnesium nanocomposite: A novel agricultural antimicrobial agent against Acidovorax oryzae and Rhizoctonia solani for sustainable rice production [J].