The Physicochemical Characteristics and Heavy Metal Retention Capability of Black Liquor Lignin-Based Biochars.

ABSTRACT: Due to its high carbon content, lignin, particularly for lignin-containing solid waste, is considered an excellent raw material for the preparation of carbon materials like biochar. To produce high-quality lignin-based biochar (LGBCs), lignin extracted from black liquor was employed to prepare biochar at various pyrolysis temperatures (300~600 °C). The physicochemical properties of LGBCs were assessed using scanning electron microscopy, N2 adsorption/desorption, Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray diffraction. Furthermore, the adsorption capability and potential mechanism of LGBCs in removing Cd(II) were investigated as well. The results indicate that LGBCs produced at higher pyrolysis temperatures exhibit rougher surfaces and more developed pore structur

SUBMITTER: Wang Z 

PROVIDER: S-EPMC10708106 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature