The molecular weight of carbon dots calculated from colligative properties and their application in estimating surface adsorption capacity  

根据依数性计算碳点的分子量及其在估算表面吸附量上的应用

作　　者：Ting Sun Xinzhi Liang Minghao Pang Xia Xin Ning Feng Hongguang Li 孙婷;梁馨支;庞明昊;辛霞;冯宁;李洪光(山东大学化学与化工学院,山东济南250000)

机构地区：[1]School of Chemistry and Chemical Engineering,Shandong University,Jinan,Shandong 250000,China

出　　处：《日用化学工业(中英文)》2025年第4期422-429,共8页China Surfactant Detergent & Cosmetics

基　　金：国家自然科学基金(92261106,21972077)。

摘　　要：Since the discovery of carbon dots(CDs)in 2004,the unique photoluminescence phenomenon of CDs has attracted widespread attention.However,the molecular weight of CDs has not been adequately quantified at present,due to CDs are atomically imprecise and their molecular weight distribution is broad.In this paper,a series of Pluronic-modified CDs were prepared and the structure of the CDs was briefly analyzed.Subsequently,a molecular weight measurement method based on colligative properties was developed,and the correction coefficient in the algorithm was briefly analyzed.The calculated molecular weight was applied to the determination of surface adsorption capacity.This work provided a method for averaging the molecular weight of atomically imprecise particulate materials,which is expected to provide new opportunities in related fields.自2004年发现碳点(CDs)以来,碳点独特的光致发光现象受到了广泛关注。然而,由于碳点在原子上是不精确的,且其分子量分布较宽,目前还没有合理地量化碳点的分子量。文章制备了一系列Pluronic改性碳点,并简要分析了碳点的结构。随后,开发了一种基于依数性的分子量测量方法,并简要分析了算法中的校正系数,计算出的分子量用于测定表面吸附量。文章提供了一种平均原子不精确颗粒材料分子量的方法,有望为相关领域带来新的机遇。

关 键 词：carbon dots molecular weight colligative properties surface adsorption capacity 

分 类 号：TQ423[化学工程]