Facile and green preparation of solid carbon nanoonions via catalytic co-pyrolysis of lignin and polyethylene and their adsorption capability towards Cu(ii)

Abstract

Solid carbon nanoonions with relatively uniform size distribution, abundant structure defects and oxygen-containing surface functional groups can be prepared from lignin with the introduction of polyethylene and Ni-based catalysts.

Lignin-enhanced wet strength of cellulose-based materials: a sustainable approach

“…Lignin possesses a variety of oxygen-rich groups, such as aldehyde groups and phenolic hydroxyl groups, which can effectively form coordination complexes. 64,65 In addition, these groups in lignin can be easily modified by oxidation, implying that incorporating lignin into cellulose-based materials can effectively strengthen the ionic crosslinking between these cellulosic materials. 66 Furthermore, lignin modifications, such as oxidation or sulfonation, are usually required to facilitate its processing, and the water solubility of the modified lignin increases along with its ionic complexing ability, and at the same time its hydrophobicity decreases.…”

Mild Acidolysis-Assisted Hydrothermal Carbonization of Lignin for Simultaneous Preparation of Green and Blue Fluorescent Carbon Quantum Dots

“…The conversion of biomass waste into advanced materials as its sustainable, cost-effective, and green raw material , offers an opportunity to alleviate the resource crisis. , Biomass waste with a high carbon content of 45–55 wt % has been utilized to produce novel carbon materials like graphene, carbon nanotubes, carbon nanofiber, carbon nano-onion, porous carbon (PC), and carbon quantum dots (CQDs) . Biomass conversion technologies have been intensively researched and developed including thermolysis, gasification, and hydrothermal treatment. , Among them, hydrothermal carbonization is a widely used technique for the thermochemical decomposition of biomass with water as the medium.…”