Affiliation:
1. College of Chemistry Sichuan University Chengdu 610064 China
2. School of National Defence Science and Technology Southwest University of Science and Technology Mianyang 621010 China
Abstract
AbstractAlong with the development of nuclear power, concerns about radioactive emissions and the potential for nuclear leakage have been widely raised, particularly of harmful iodine isotopes. However, as a significant component of nuclear air waste, the enrichment and detection of air‐dispersed gaseous iodine remain a challenge. In this work, it is focused on developing an attraction‐immobilization‐detection strategy‐based fluorescence method for the on‐site detection of volatile iodine, by employing a photoluminescent ionic polyimine network‐polyvinylpyrrolidone (IPIN‐PVP) composite membrane. This strategy synergizes ion‐induced dipole interactions from IPIN and complexation effects from PVP, allowing effective iodine enrichment and immobilization. As a result, the optimized IPIN‐PVP membrane exhibits rapid response times of 5 s and a low detection limit of 4.087 × 10−8 m for gaseous iodine. It also introduces a portable handheld detection device that utilizes the composite membrane, offering a practical solution for real‐time on‐site detection of volatile iodine. This innovation enhances nuclear safety measures and disaster management by providing rapid and reliable iodine detection capabilities.
Funder
Fundamental Research Funds for the Central Universities
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science