中国造纸学报2025，Vol.40Issue(4)：60-68,9.DOI:10.11981/j.issn.1000-6842.2025.04.60
单分散纤维素寡糖调控钴酸镍纳米酶结构性能研究
Regulation of the Structural and Catalytic Properties of NiCo2O4 Nanozymes Using Monodisperse Cellulose Oligomers
摘要
Abstract
In this study,monodisperse cellulose oligosaccharides(MCOs)were introduced as molecular scaffolds to successfully synthesize MCOs@NiCo2O4 composite nanozymes.Benefiting from the excellent surface modification ability and confinement effect of MCOs,the nucleation and oriented growth of NiCo2O4 nanozymes were effectively guided,resulting in well-defined morphology and controllable surface chemical en-vironments.Structural characterizations revealed that the incorporation of MCOs significantly improved the dispersion and interfacial chemistry of NiCo2O4 nanozymes,facilitating the exposure of active sites.Catalytic performance tests demonstrated that MCOs@NiCo2O4 composite nano-zymes exhibited higher specific enzyme activity and reaction rate in the 3,3',5,5'-tetramethylbenzidine(TMB)/H2O2 system.Moreover,by enhancing the catalytic rate per enzyme unit while maintaining substrate-binding ability,the overall catalytic efficiency was effectively im-proved.These results indicated that MCOs modification not only optimized the structural and surface properties of NiCo2O4 nanozymes but al-so enhanced its peroxidase-like activity,providing a novel design strategy and synthesis route for constructing structurally controllable and performance-tunable high-efficiency composite nanozymes.关键词
纳米酶/钴酸镍/纤维素/催化效率Key words
nanozymes/NiCo2O4/cellulose/catalytic efficiency分类
轻工纺织引用本文复制引用
吴珂,李唯,于世博,鲁辰淇,赵恬,袁博雅,宋宁宁,陈攀,张金明,梁敏敏..单分散纤维素寡糖调控钴酸镍纳米酶结构性能研究[J].中国造纸学报,2025,40(4):60-68,9.基金项目
北京市自然科学基金(L254007) （L254007）
河北省自然科学基金(B2023105020) （B2023105020）
中国科协青年人才托举工程(2024QNRC0372) （2024QNRC0372）
北京理工大学青年教师启动计划(XSQD-202108010). （XSQD-202108010）
