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Gamma radiation-induced defects, phase transformation, and color change in ZIF materials (ZIF-8 and ZIF-L) for enhanced hydrogen generation

Research Authors
Hani Nasser Abdelhamid, Ghada A Mahmoud, RM Mahfouz
Research Abstract

This study presents the effects of gamma (γ) radiation exposure on zeolitic imidazolate frameworks and elucidates the impact of irradiation on the material. Two different ZIF materials, namely, three-dimensional (3D) crystals (ZIF-8) and two-dimensional (2D) crystals (ZIF-L), were investigated. The oxidation environment of γ-radiation (1.3 kGy h− 1) caused the phase transformation of both ZIF-8 and ZIF-L into ZIF-L materials, creating point defects. A yellow-orange colored ZIF-L was obtained from both materials. The materials were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, diffuse reflectance spectroscopy (DRS), Tauc plots, and electrochemical measurements (cyclic voltammetry (CV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) using Nyquist plots). γZIF-8 and γZIF-L showed broad …

Research Date
Research Department
Research Journal
New Journal of Chemistry
Research Year
2025