Amine-functionalized magnetic biochars derived from invasive plants Alternanthera philoxeroides for enhanced efficient removal of Cr(VI): performance, kinetics and mechanism studies

Remediation of hexavalent chromium and pharmaceuticals from aquatic environments by employing an oxygen-doped porous carbon adsorbent and its antifungal activity

“…14 Specifically, biochar produced during the pyrolysis of agricultural by-products is of serious importance for employment as a low-cost adsorbent for the adsorption of a wide range of industrial contaminants from water. 15,16 In previously reported literature, various adsorbent materials (including aminefunctionalized magnetic biochar, 17 polyaniline -TiO 2 hydrate, 18 nitrogen-doped porous carbon, 19 heteroatom-doped carbon materials, 16,[20][21][22] coffee shells, 6 Pisum sativum pods, 23 rubber sludge-derived activated carbon, 24 acid-modified waste fungal biomass, 25 and natural peach gum polysaccharide based adsorbents 26,27 ) were employed for the effective remediation of hexavalent chromium from the aquatic environment.…”

Enhanced adsorption and co-adsorption of heavy metals using highly hydrophilicity amine-functionalized magnetic hydrochar supported MIL-53(Fe)-NH2: performance, kinetics, and mechanism studies

“…The process of preparing BAP, HBAP and NM-53 mainly referred to previous work (Luo et al 2022, Zhang et al 2022a). The speci c process is shown in detail in the supplementary materials.…”

“…Zhang et al (Zhang et al 2022b) propose a strategy that enhances the dispersion and stability of tetraethylene pentaamine (TEPA) via anchoring TEPA with single site Ni (II) in the pore of the commercial mesoporous silica gel. In addition, in our previous work (Luo et al 2022), we prepared amino-functionalized magnetic hydrochar derived from invasive plants, which has a good adsorption capacity for Cr(VI) (80.58 mg/g) and has a relatively strong physical stability in aqueous solution, but its poor dispersion in aqueous solution and surface hydrophobicity impel us to further investigate the adsorption and co-adsorption effect of hydrochar-nanoparticle composites on various HMs in aqueous solution.…”