Preparation and Performance of a Boron Nitride Nanotube-Based Radon Capture Filter
Preparation and Performance of a Boron Nitride Nanotube-Based Radon Capture Filter
Huang, Mr. Xinyi 1Zhao, Prof. Kuo 2Li, Prof. Yanjiao 2Liu, Mr. Yujie2
作者信息
- 1. PLA Rocket Force University of Engineering
- 2. Rocket Force University of Engineering
- 折叠
摘要
Radon (Rn), a ubiquitous radioactive gas, is the second leading cause of lung cancer in humans.Developing efficient and highly adaptable radon-adsorbing materials therefore carries significant implications for radiation protection and public health. To address the deficiencies commonly associated with conventional radon adsorbents-high humidity sensitivity, poor radiation stability, and rigid architectures that cannot conform to complex curved surfaces-this study proposes a novel flexible, filter-type radon capture material based on boron nitride nanotubes (BNNTs). Using a flexible stainless-steel wire mesh as the substrate, a BNNT-based radon capture filter (BNRCF) was successfully prepared by a grinding-mixing and high-temperature annealing route, in which the precursor was annealed at 1260 °C for 3 h under an ammonia (NH 3 ) atmosphere. Scanning electron microscope (SEM) indicated that the filter surface transformed from a loose, needle-like morphology before radon adsorption into a dense, flocculent structure afterwards. Energy-dispersive X-ray spectroscopy (EDS) elemental mapping clearly detected radon and its progeny, confirming that they were effectively captured and retained. In addition, the water contact angle of the filter reached 152.49°, demonstrating pronounced superhydrophobicity. Dynamic radon adsorption experiments further showed that the BNRCF exhibit certain adsorption performance under different numbers of layers, with a stable adsorption behavior and maximum efficiency of 15.2%. Overall, the superhydrophobicity, radiation stability and flexibility of the BNRCF highlight its application potential in the field of radon adsorption.
Abstract
Radon (Rn), a ubiquitous radioactive gas, is the second leading cause of lung cancer in humans.Developing efficient and highly adaptable radon-adsorbing materials therefore carries significant implications for radiation protection and public health. To address the deficiencies commonly associated with conventional radon adsorbents-high humidity sensitivity, poor radiation stability, and rigid architectures that cannot conform to complex curved surfaces-this study proposes a novel flexible, filter-type radon capture material based on boron nitride nanotubes (BNNTs). Using a flexible stainless-steel wire mesh as the substrate, a BNNT-based radon capture filter (BNRCF) was successfully prepared by a grinding-mixing and high-temperature annealing route, in which the precursor was annealed at 1260 C for 3 h under an ammonia (NH 3 ) atmosphere. Scanning electron microscope (SEM) indicated that the filter surface transformed from a loose, needle-like morphology before radon adsorption into a dense, flocculent structure afterwards. Energy-dispersive X-ray spectroscopy (EDS) elemental mapping clearly detected radon and its progeny, confirming that they were effectively captured and retained. In addition, the water contact angle of the filter reached 152.49, demonstrating pronounced superhydrophobicity. Dynamic radon adsorption experiments further showed that the BNRCF exhibit certain adsorption performance under different numbers of layers, with a stable adsorption behavior and maximum efficiency of 15.2%. Overall, the superhydrophobicity, radiation stability and flexibility of the BNRCF highlight its application potential in the field of radon adsorption.关键词
radon adsorption/nanomaterials/BNNTs/adsorption performance CLC number: X591 Document code: A引用本文复制引用
Huang, Mr. Xinyi,Zhao, Prof. Kuo,Li, Prof. Yanjiao,Liu, Mr. Yujie.Preparation and Performance of a Boron Nitride Nanotube-Based Radon Capture Filter[EB/OL].(2026-11-01)[2026-11-04].https://chinaxiv.org/abs/202611.00028.学科分类
环境污染、环境污染防治
