Effect mechanism of litter extract from Alternanthera philoxeroides on the selective absorption of heavy metal ions by amphoteric purple soil

Autor: Yin-fei Wang, Wen-bin Li, Hong-yan Deng, Lang Zhu, Jun-qi Li, Meng-ting Guo, Zhi-feng Liu
Rok vydání: 2022
Předmět:
Zdroj: Journal of environmental management. 321
ISSN: 1095-8630
Popis: Plant litter causes a serious waste of resources. Thus, plant litter extract (LE) should be used in the soil remediation of heavy metals. In this study, different proportions of LE from the Alternanthera philoxeroides were used to modify dodecyl dimethyl betaine (BS)-modified purple soil (P). The basic physicochemical properties of LE + BS-modified Ps (LE + BS-Ps) were determined, and the microscopic morphology of LE + BS-Ps was studied by using scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, and specific surface area detection. The isothermal adsorption characteristics of heavy metal ions (Pb
Databáze: OpenAIRE