Mahaninia Mohammad H
Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada.
ACS Omega. 2020 Aug 21;5(34):21836-21843. doi: 10.1021/acsomega.0c02910. eCollection 2020 Sep 1.
Two types of chitosan framework materials were functionalized with carboxyl groups via a supramolecular cross-linking process by citric acid (CA) and trimesic acid (TMA). The role of surface chemistry (i.e., functional groups) and textural properties (i.e., pore size and surface area) in adsorption properties of these chitosan frameworks toward water vapor and dye was investigated. Extensive characterizations using N adsorption-desorption, contact angle measurements, differential scanning calorimetry, atomic force microscopy, and confocal microscopy were carried out to understand structure-property relationships of these framework materials. The dynamic vapor sorption analyzer measured water vapor sorption percentage ( %) values of 46.7, 43.9, and 41.5 for TMA1, CA1 framework materials, and chitosan, respectively. The calculated adsorption percentage values of dyes in aqueous solution were 69.7, 39.2, and 18.8 ( %) for TMA1, CA1, and chitosan, respectively.
通过柠檬酸（CA）和均苯三甲酸（TMA）的超分子交联过程，两种类型的壳聚糖骨架材料被羧基官能化。研究了表面化学（即官能团）和织构性质（即孔径和表面积）对这些壳聚糖骨架对水蒸气和染料的吸附性能的作用。使用N吸附-脱附、接触角测量、差示扫描量热法、原子力显微镜和共聚焦显微镜进行了广泛的表征，以了解这些骨架材料的结构-性能关系。动态蒸汽吸附分析仪测得TMA1、CA1骨架材料和壳聚糖的水蒸气吸附百分比（%）值分别为46.7、43.9和41.5。TMA1、CA1和壳聚糖在水溶液中染料的计算吸附百分比值分别为69.7、39.2和18.8（%）。
