{'fraction_non_alphanumeric': 0.04198473282442748, 'fraction_numerical': 0.02862595419847328, 'mean_word_length': 5.767741935483871, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Tuning the optical and magnetic properties of ZnO by Fe3O4

In this work, nanocomposites were prepared with different weight ratios based on the formula 1−xZnO+xFe3O4, where x = 0.01, 0.03, 0.05, 0.07 and 0.09. The structure, morphology, optical, and magnetic properties were examined by x-ray diffraction, UV–vis-NIR diffuse reflectance spectroscopy, high-resolution transmission electron microscopy (HRTEM), and vibrating sample magnetometer (VSM). The x-ray diffraction (XRD) results confirm the phase purity formation of Fe3O4−ZnO nanocomposites. The transmission electron microscopy (TEM) exhibited the prepared powders are nanoparticles with the spherical shapes of Fe3O4 and nanorod for ZnO. UV–vis-NIR diffuse reflectance measurements showed that the Fe3O4 modified the optical properties of ZnO. Results of the vibrating sample magnetometer (VSM) display a superparamagnetic characteristic of Fe3O4 and ferromagnetic behavior for nanocomposites. The magnetization and remanence magnetization of nanocomposites increases with Fe3O4 content.