文献类型：期刊文献

英文题名：Unraveling the Intricate Interaction: Bonding Mechanism between Tannic Acid and Wood Fibers

作者：Liu, Shiqin[1] Ji, Wenjian[1] Wu, Ting[2,3,4] He, Yingqi[1] Huang, Yuxiang[1] Yu, Yanglun[1] Yu, Wenji[1]

通信作者：Huang, YX[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[3]Chinese Acad Forestry, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[4]Chinese Acad Forestry, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Nanjing 210042, Peoples R China

年份：2024

卷号：12

期号：10

起止页码：4224-4235

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20241015669322);Scopus(收录号：2-s2.0-85186474783);WOS:【SCI-EXPANDED(收录号:WOS:001176888400001)】；

基金：This work was financially supported by the National Nature Science Foundation of China (No. 31890771). We acknowledge Beijing Zhongkebaice Technology Service Co., Ltd., for the characterization results.

语种：英文

外文关键词：wood fibers; tannic acid; interaction mechanism; hydrogen bonding; electrostatic interaction

摘要：Due to the biodegradable, biocompatible, sustainable, and renewable properties of lignocellulosic materials, there is growing interest in developing functional materials based on lignocellulosic components using green strategies. For example, the surface of lignocellulosic materials can be modified using polyphenols with inherent characteristics such as metal chelation and reducibility to prepare functional materials with flame retardant, antibacterial, and self-cleaning properties. Understanding the fundamental interaction mechanisms between lignocellulosic materials and polyphenols is crucial for these applications and the design of lignocellulosic-based functional materials. In this study, we used wood fibers (WFs) and tannic acid (TA) as typical representatives of lignocellulosic materials and polyphenols, respectively. We combined adsorption isotherm models and density functional theory simulations to reveal the interaction mechanisms between the main components of WFs (cellulose, hemicellulose, and lignin) and TA. Cellulose and hemicellulose primarily interacted with TA through hydrogen bonding, electrostatic interaction, and hydrophobic interaction, while lignin-TA interactions are hydrogen bonding and electrostatic interaction. For WFs, their pore structure and exposed surface components determined their binding with TA. The adsorption of TA on WFs followed the Langmuir model for monolayer adsorption, with the main driving forces being hydrogen bonding, electrostatic interactions, and van der Waals forces between surface cellulose components and TA. Our findings provide new insights into the interaction mechanisms between lignocellulosic materials and polyphenols, offering valuable guidance for the development of lignocellulosic/polyphenol composite functional materials with environmental, biomedical, and engineering applications.