Size Effect of Pt Nanoparticles: a Study of Properties of Pt Loaded TiO2 Thin Film
HUA Nan-ping1, GAN Yu-qin1, XU Jiao-zhen1, ZOU Cui-e1, YANG Ping1, XU Jing-kun2, DU Yu-kou1*
1. Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China 2. Key Lab of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
Abstract：TiO2 thin films loaded with Pt nanoparticles of different sizes were prepared. The sizes of the Pt nanoparticles were measured by TEM. The TiO2 thin films were characterized using XRD, UV-Vis and photocurrent measurement. The photocatalytic activities of the films were evaluated by the degradation of methylene blue under UV radiation. With the same molar quantity of loaded platinum, the properties of Pt loaded thin films were affected directly by the sizes of platinum nanoparticles, and showed strong size effect. When the particle size was 5 nm, the photocurrent and photocatalytic activity reached the maximum.
Key words：Pt nanoparticles;TiO2 thin films;Photodegradation;Methylene blue
华南平1，甘玉琴1，徐娇珍1，邹翠娥1，杨 平1，徐景坤2，杜玉扣1* . 铂颗粒粒径效应：负载铂纳米颗粒的TiO2薄膜性质研究[J]. 光谱学与光谱分析, 2005, 25(11): 1861-1864.
HUA Nan-ping1, GAN Yu-qin1, XU Jiao-zhen1, ZOU Cui-e1, YANG Ping1, XU Jing-kun2, DU Yu-kou1* . Size Effect of Pt Nanoparticles: a Study of Properties of Pt Loaded TiO2 Thin Film. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(11): 1861-1864.
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