{'fraction_non_alphanumeric': 0.03223270440251572, 'fraction_numerical': 0.007861635220125786, 'mean_word_length': 4.812785388127854, '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}}
Long-Lasting and Intense Chemiluminescence of Luminol Triggered by Oxidized g-C3N4 Nanosheets.

Most of the known chemiluminescnece (CL) systems are flash-type, whereas a CL system with long-lasting and strong emission is very favorable for accurate CL quantitative analysis and imaging assay. In this work, we found that the oxidized g-C3N4 (g-CNOX) could trigger luminol to produce a long-lasting and intense CL emission. The CL emission lasted for over 10 min, and could be observed by naked eye in a dark room. By means of CL spectrum, X-ray photoelectron spectra and electron spin resonance spectra, the possible mechanism of this CL reaction was proposed. This strong and long-duration CL emission was attributed to the high catalytic activity of g-CNOX nanosheets and continuous generation of reactive oxygen species from H2O2 on g-CNOX surface. Taking full advantage of the long-lasting CL property of this system, we proposed one "non in-situ mixing" mode of CL measurement. Compared with the traditional "in-situ mixing" CL measurement mode, this measurement mode was convenient to operate and had good reproducibility. This work not only provides a long-lasting CL reaction, but also deepens the understanding of the structure and properties of g-C3N4 material.