A nitrogen-rich halogen-bonded organic framework (XOF) for efficient iodine capture and security printing

作     者：Qi Zhao Penghao Sun Guanfei Gong Yi Chen Lingzhi Luo Yongfei Yin Chunsheng Li Jike Wang Lu Wang Shigui Chen 

作者机构：The Institute for Advanced StudiesWuhan UniversityWuhan 430072China Ningxia Vocational Technical College of Industry and CommerceYinchuan 750100China Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of ChinaSchool of Chemistry and Life SciencesSuzhou University of Science and TechnologySuzhou 215009China 

出 版 物：《Science China Chemistry》 (中国科学(化学英文版))

年 卷 期：2025年第68卷第2期

页      面：631-640页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (22371218, 21702153, and 21801194) Wuhan Science and Technology Bureau (whkxjsj009) the support of the Core Facility of Wuhan University the Large-scale Instrument and Equipment Sharing Foundation of Wuhan University 

主　　题：[N…I+…N]halogen bond halogen-bonded organic framework iodine capture security printing supramolecular assembly 

摘      要：The escalating utilization of nuclear energy and nuclear medicine raises concerns about the environmental impact of radioactive iodine,necessitating the development of effective iodine adsorbents,especially under a real-world scenario with extremely low iodine concentration and elevated ***,we have presented the construction of a nitrogen-abundant two-dimensional(2D)halogen-bonded organic framework,XOF-TNP,characterized by exceptional crystallinity,thermal stability,and nitrogen-rich ***-TNP exhibits strong binding to iodine,thanks to the fact that iodine can be pre-enriched into the framework through N…I *** nitrogen-rich framework and I^(+) synergistically have extremely high binding force to iodine,enabling the rapid and efficient capture of iodine in both vapor and solution phases,with significant *** flow-through adsorption experiments using an XOF-TNP-packed column achieve 99%iodine removal from hexane and aqueous solutions,surpassing traditional activated *** highlights its potential for environmental *** enables the development of a novel rewritable security paper,utilizing its iodine adsorption properties to encrypt and decrypt QR *** research expands the application scope of halogen-bonded organic frameworks,providing insights into the design of materials for environmental remediation and security applications.