Progress of metal-loaded biochar-activated persulfate for degradation of emerging organic contaminants.
Water Sci Technol
; 90(3): 824-843, 2024 Aug.
Article
en En
| MEDLINE
| ID: mdl-39141037
ABSTRACT
In recent years, studies on the degradation of emerging organic contaminants by sulfate radical (SO4-·) based advanced oxidation processes (SR-AOPs) have triggered increasing attention. Metal-loaded biochar (Me-BC) can effectively prevent the agglomeration and leaching of transition metals, and its good physicochemical properties and abundant active sites induce outstanding in activating persulfate (PS) for pollutant degradation, which is of great significance in the field of advanced oxidation. In this paper, we reviewed the preparation method and stability of Me-BC, the effect of metal loading on the physicochemical properties of biochar, the pathways of pollutant degradation by Me-BC-activated PS (including free radical pathways SO4-·, hydroxyl radical (·OH), superoxide radicals (O2-·); non-free radical pathways singlet oxygen (1O2), direct electron transfer), and discussed the activation of different active sites (including metal ions, persistent free radicals, oxygen-containing functional groups, defective structures, etc.) in the SR-AOPs system. Finally, the prospect was presented for the current research progress of Me-BC in SR-AOPs technology.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Sulfatos
/
Contaminantes Químicos del Agua
/
Carbón Orgánico
Idioma:
En
Revista:
Water Sci Technol
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2024
Tipo del documento:
Article
País de afiliación:
China