Facile synthesis of triazole and carboxyl-functionalized cellulose-based adsorbent via click chemistry strategy for efficient Gd(III) removal

摘要: Gd(III) containing wastewater has toxic effects on both public health and aquatic life. However, few literature is available using wastes biomass cellulose with enough high adsorption capacity to remove Gd(III). Herein, we described a facile synthesis of triazole carboxyl- functionalized magnetic cellulose-based material from ramie stalk (TCM-RS) through click chemistry strategy for the first time. The synthesized sample was used as an efficient adsorbent removal aqueous solution. obtained materials were well characterized. Batch experiments showed that combination bifunctional chelating ligand, sufficient specific surface area, response endowed excellent selectivity, easy separation solutions, respectively. maximum uptake TCM-RS (62.8 mg/g) reached within 40 min. Adsorption isotherms kinetics revealed Langmuir model pseudo-second-order could describe process onto TCM-RS. Moreover, sorbent can be regenerated reused five cycles without significant loss in capacity. Our study not only provides new insights into fabrication strategy, but also reveal great potential application wastewater.