介孔材料
微型多孔材料
材料科学
化学工程
碳纤维
吸附
介孔有机硅
木质素
纳米技术
药物输送
分子
有机化学
催化作用
化学
复合材料
介孔二氧化硅
复合数
工程类
作者
Dipendu Saha,E. Andrew Payzant,Amar Kumbhar,Amit K. Naskar
摘要
Here, we report the synthesis of surfactant-templated mesoporous carbons from lignin, which is a biomass-derived polymeric precursor, and their potential use as a controlled-release medium for functional molecules such as pharmaceuticals. To the best of our knowledge, this is the first report on the use of lignin for chemical-activation-free synthesis of functional mesoporous carbon. The synthesized carbons possess the pore widths within the range of 2.5–12.0 nm. In this series of mesoporous carbons, our best result demonstrates a Brunauer–Emmett–Teller (BET) surface area of 418 m2/g and a mesopore volume of 0.34 cm3/g, which is twice the micropore volume in this carbon. Because of the dominant mesoporosity, this engineered carbon demonstrates adsorption and controlled release of a representative pharmaceutical drug, captopril, in simulated gastric fluid. Large-scale utilization of these sustainable mesoporous carbons in applications involving adsorption, transport, and controlled release of functional molecules is desired for industrial processes that yield lignin as a coproduct.
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