School of Materials and Architectural Engineering, Guizhou Normal University, Guiyang 550025, China; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China.
Carbohydr Polym. 2022 Jun 15;286:119313. doi: 10.1016/j.carbpol.2022.119313. Epub 2022 Mar 5.
With the development of society, the problem of environmental pollution is becoming increasingly serious, such as the typical pollution of nitro compounds or dyes in wastewater. An effective strategy to remove these organic pollutants is catalytic conversion, including converting them into more chemically valuable compounds. Herein, a nanoporous chitosan microsphere derived from seafood waste resources of chitin was constructed via sol-gel method, which was used as supports to successfully fabricate a highly dispersed Pd nano-catalyst (mean diameter ~ 1.8 nm) via a facile way based on its interconnected nanoporous structure and rich functional -OH/-NH groups. The synthetic catalyst was applied to the hydrogenation of toxic nitro compounds, which could efficiently and selectively catalyze the conversion of nitro compounds. The catalyst was also used for the degradation of some representative dyes, which also showed good activity and stability, suggesting potential of applications in green environmental governance.
随着社会的发展，环境污染问题日益严重，如典型的废水中硝基化合物或染料污染。去除这些有机污染物的有效策略是催化转化，包括将它们转化为更具化学价值的化合物。在此，通过溶胶-凝胶法构建了一种由海鲜废弃物资源甲壳素衍生的纳米多孔壳聚糖微球，其互连成孔的结构和丰富的功能-OH/-NH 基团使其可以通过简便的方法作为载体成功制备高度分散的 Pd 纳米催化剂（平均直径约为 1.8nm）。该合成催化剂应用于有毒硝基化合物的加氢反应中，可高效、选择性地催化硝基化合物的转化。该催化剂还用于一些代表性染料的降解，也表现出良好的活性和稳定性，表明其在绿色环境治理方面具有潜在的应用。
