中山大学学报（自然科学版）（中英文）2024，Vol.63Issue(3)：137-146,10.DOI:10.13471/j.cnki.acta.snus.ZR20230041
超细铂纳米催化剂的光化学合成及其催化还原硝基苯酚的应用
Photochemical synthesis of ultrafine platinum nanocatalysts and their application in the catalytic reduction of nitrophenols
摘要
Abstract
This study focuses on synthesizing ultrafine platinum nanoparticles(Pt/C60-E)by irradiating a mixture of C60 and K2[PtCl4]with ethylene glycol(EG)as the reducing agent.The process utilizes near-ultraviolet(UV)light at a wavelength of 395 nm,along with visible light at 450 and 650 nm.The composition and morphology of the Pt/C60 catalyst were investigated using characterization techniques including X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),X-ray photoelec-tron spectroscopy(XPS),and high-resolution transmission electron microscopy(HR-TEM).The results revealed a well-dispersed distribution of Pt nanoparticles on the C60 surface,with an average particle size of about 2.6 nm.In the catalytic reduction experiments of p-NP,the Pt/C60-E3 catalyst,prepared under near-ultraviolet irradiation(395 nm),exhibited superior catalytic activity,with a rate constant(k)of 0.12 min-1.Furthermore,in the catalyst cycling experiments,the catalysts remained highly active even after multiple cycles,demonstrating the effectiveness of the photochemical method in synthesizing precursor Pt catalysts.关键词
超细铂纳米颗粒/富勒烯/光化学法/降解p-硝基苯酚Key words
platinum ultrafine nanoparticles/fullerene/photochemical method/degradation of p-nitrophenol分类
化学化工引用本文复制引用
鲜亮,田小霞,马婧,李伟..超细铂纳米催化剂的光化学合成及其催化还原硝基苯酚的应用[J].中山大学学报（自然科学版）（中英文）,2024,63(3):137-146,10.基金项目
National Natural Science Foundation of China(52167003) （52167003）
Key Research and Development Projects in Gansu Province(21YF5WA064) （21YF5WA064）
