Rapid oxidation of black phosphorus induced by copper ions via promoting oxygen bonding and phosphate desorption
作者机构：State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Chemistry and Biomedicine Innovation CenterNanjing University Nano Structural Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology School of Environmental Science and Engineering Zhejiang Gongshang University Nanjing Qixia District Hospital Cambridge A-Level Centre Nanjing Jinling High School
出 版 物：《National Science Open》 (国家科学进展)
年 卷 期：2024年第3卷第5期
页 面：100-113页
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：supported by the National Natural Science Foundation of China (22125602, U2067215, 22206087 and22076078) the National Key R&D Program of China (2022YFC3701402)
主 题：black phosphorus reaction pathway reaction efficiency copper ions reaction mechanism
摘 要：Black phosphorus（BP） has garnered significant interest in the field of biomedicine because of its exceptional degradability. The oxidation product of BP phosphate has been utilized in numerous studies for the purpose of repairing bone defects and inducing apoptosis and autophagy in cancer cells. Nevertheless, this process has drawbacks in terms of low yield and a slow rate of phosphate production. In this study, we found that the oxidation rate of BP was increased 120-fold and the yield proportion of phosphate BP product was increased from 30% to 85% with the presence of less than 0.1% copper ions(Cu2+) in the reaction system. The enhancement was attributed to the fact that the presence of Cu2+promoted the bonding of oxygen on the BP surface and then the desorption of phosphate molecules from the BP surface. This study offers a novel perspective on the process of BP oxidation and introduces innovative concepts for the development of biological drug delivery systems capable of rapid decomposition.
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