Abstract Preparation of photocatalysts with excellent performance has drawn considerable attention. Herein, we report a facile and reliable method to promote the photocatalytic performance of Ag/Ag2O with the assistance of surfactant EO20PO70EO20 (P123). The samples prepared (P123–Ag2O) were characterized by some analytic methods. The results reveal that the presence of P123 in the synthetic system largely boosts the separation rate of photoinduced e−/h+ pairs, accelerates the formation of •O2− due to plasmon effect of Ag0 particles and promotes the surface hydroxyl content, proven by the surface photovoltage spectroscopy (SPS), nitrotetrazolium blue chloride (NBT) and X-ray photoelectron spectroscopy (XPS) results. Photocatalytic abilities of the samples toward abatement of methyl orange (MO) were evaluated under simulated sunlight illumination. The results reveal that the photocatalytic activity of P123–Ag2O is five times of that of Ag2O. More importantly, P123–Ag2O possesses excellent stability and has great potential applications in environmental purification.

中文翻译：

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P123 辅助制备具有显着增强光催化性能的 Ag/Ag2O

摘要 制备性能优异的光催化剂已引起广泛关注。在此，我们报告了一种在表面活性剂 EO20PO70EO20 (P123) 的帮助下提高 Ag/Ag2O 光催化性能的简便可靠的方法。制备的样品 (P123-Ag2O) 通过一些分析方法进行表征。结果表明，合成体系中 P123 的存在大大提高了光诱导 e-/h+ 对的分离率，由于 Ag0 粒子的等离子体效应加速了 •O2- 的形成，并促进了表面羟基含量，表面证明光电压能谱 (SPS)、氯化硝基四唑蓝 (NBT) 和 X 射线光电子能谱 (XPS) 结果。在模拟日光照射下评估样品对甲基橙 (MO) 减排的光催化能力。结果表明，P123-Ag2O 的光催化活性是 Ag2O 的 5 倍。更重要的是，P123-Ag2O 具有优异的稳定性，在环境净化方面具有巨大的应用潜力。