Synthesis and characterization of mercapto-modified graphene/multi-walled carbon nanotube aerogels and their adsorption of Au(III) from environmental samples

Review on the preparation and application of lignin-based carbon aerogels

“…Carbon aerogels (CAs) were first reported in 1992 9 and a new class of perforated carbon materials with huge specific surface area, large porosity, ultra-low density (0.003 g cm −3 ) and good electrical conductivity. CAs are usually obtained by carbonization of organic aerogels under an inert atmosphere, and their porous properties lead to applications in adsorption, 10–13 energy storage, 8,14,15 catalysis, 16,17 etc. There are still many challenges in the preparation of CAs, e.g.…”

Preparation of Cysteine‐Functionalized Fe3O4 Magnetic Nanoparticles for Determination of Cu2+

“…Therefore, L-cysteine can be used as a cross-linking agent and modifier in the preparation of Fe 3 O 4 NPs. [18] The thiol-ene click reaction may be an efficient way to couple polymer strands under certain conditions, which has been applied in polymer and materials synthesis because it has particular characteristics, such as high yield, solvent and oxygen tolerance, absence of byproducts, and easy purification. [19] In view of some advantages of Fe 3 O 4 NPs with large specific area and L-cysteine with multifunctional groups, we try to fabricate cysteine-functionalized Fe 3 O 4 (Fe 3 O 4 @γ-MAPS@L-cys) magnetic nanoparticles with excellent adsorptive properties by thiol-ene click reaction.…”

“…Recent experiments show that L‐cysteine can effectively prevent magnetic nanoparticles from being oxidized and aggregated. Therefore, L‐cysteine can be used as a cross‐linking agent and modifier in the preparation of Fe 3 O 4 NPs [18] . The thiol‐ene click reaction may be an efficient way to couple polymer strands under certain conditions, which has been applied in polymer and materials synthesis because it has particular characteristics, such as high yield, solvent and oxygen tolerance, absence of byproducts, and easy purification [19] .…”