Physicochemical and textural properties of amino-functionalised mesoporous silica nanomaterials from different silica sources

In the study, we provided an insight into the nature of interaction that occurred at nanoscale level when preparing mesoporous nanomaterials with molecular scale cavity using either calcination or solvent extraction to remove the surfactant, improve the stability and suitability to surface functionalisation. By carrying out essential material characterisations, we were able to provide plausible empirical data and mechanism to support the morphological changes in the resulting mesoporous silica nanomaterials prepared from the two silica sources.

本研究针对通过煅烧（calcination）或溶剂萃取（solvent extraction）脱除表面活性剂（surfactant）、制备带有分子级空腔的介孔纳米材料（mesoporous nanomaterials）过程中纳米尺度下的相互作用本质展开了深入剖析，该制备工艺可有效提升材料的稳定性与表面功能化（surface functionalisation）适配性。通过开展必要的材料表征（material characterisations）实验，本研究获取了可信的实验数据与作用机制，用以阐释由两种二氧化硅前驱体制备得到的介孔二氧化硅纳米材料（mesoporous silica nanomaterials）的形貌演变规律。