介孔二氧化硅SBA-15由于其独特的结构和物理化学性质,已成为一种有前途的吸附和分离材料。为了进一步提高其性能,各种表面改性策略,包括金属氧化物和贵金属的掺入,以改善催化活性和稳定性,用氨基和巯基进行有机官能化,以增强吸附能力和选择性,和无机-有机复合改性的协同效应,进行了广泛的探索。本文综述了SBA-15用于吸附和分离应用的表面改性的最新进展。合成方法,结构特性,并讨论了SBA-15的优点,然后详细分析了不同的改性策略及其结构-性能关系。功能化SBA-15材料在有机污染物去除中的吸附分离性能,重金属离子,气体,和生物分子,以及在色谱和固液分离中,进行批判性评估。尽管取得了重大进展,确定了未来研究的挑战和机遇,包括开发低成本和可持续的合成路线,合理设计具有定制性能的SBA-15基材料,并融入实际应用。这篇综述旨在指导未来的研究工作,以开发用于可持续环境和工业应用的先进SBA-15基材料。强调绿色和可扩展的修改策略。
Mesoporous silica SBA-15 has emerged as a promising adsorbent and separation material due to its unique structural and physicochemical properties. To further enhance its performance, various surface modification strategies, including metal oxide and noble metal incorporation for improved catalytic activity and stability, organic functionalization with amino and thiol groups for enhanced adsorption capacity and selectivity, and inorganic-organic composite modification for synergistic effects, have been extensively explored. This review provides a comprehensive overview of the recent advances in the surface modification of SBA-15 for adsorption and separation applications. The synthesis methods, structural properties, and advantages of SBA-15 are discussed, followed by a detailed analysis of the different modification strategies and their structure-performance relationships. The adsorption and separation performance of functionalized SBA-15 materials in the removal of organic pollutants, heavy metal ions, gases, and biomolecules, as well as in chromatographic and solid-liquid separation, is critically evaluated. Despite the significant progress, challenges and opportunities for future research are identified, including the development of low-cost and sustainable synthesis routes, rational design of SBA-15-based materials with tailored properties, and integration into practical applications. This review aims to guide future research efforts in developing advanced SBA-15-based materials for sustainable environmental and industrial applications, with an emphasis on green and scalable modification strategies.