Photochemical synthesis of ultrafine platinum nanocatalysts and their application in the catalytic reduction of nitrophenols
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.
platinum ultrafine nanoparticlesfullerenephotochemical methoddegradation of p-nitrophenol
鲜亮、田小霞、马婧、李伟
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西北民族大学化工学院,甘肃 兰州 730030
甘肃省高校环境友好复合材料及生物质利用省级重点实验室,甘肃 兰州 730030
超细铂纳米颗粒 富勒烯 光化学法 降解p-硝基苯酚
国家自然科学基金Key Research and Development Projects in Gansu Province
国家科技期刊平台
NSTL
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