期刊
RESEARCH ON CHEMICAL INTERMEDIATES
卷 40, 期 1, 页码 23-31出版社
SPRINGER
DOI: 10.1007/s11164-013-1451-2
关键词
Pt-loaded WO3 photocatalyst; Siliceous zeolite adsorbent; Visible light; Focused sunlight
A hybrid photocatalyst was prepared from visible light-responsive Pt/WO3 and siliceous mordenite (MOR) zeolite by simple impregnation with an aqueous solution of (NH4)(10)W12O41 center dot 5H(2)O. Unmodified Pt/WO3 had low photocatalytic activity in gas phase oxidation of acetaldehyde because of its low surface area (3-5 m(2)/g). In contrast, the Pt/WO3-MOR had higher photocatalytic activity under focused sunlight and Xe lamp irradiation. Pt/WO3-MOR with low WO3 content (< 20 wt%) adsorbed sufficient acetaldehyde, but absorption of light in the visible region was low. The optimum zeolite content enhancing the photocatalytic activity of Pt/WO3 was estimated to be 30-50 % (w/w). Adsorption of the gaseous reactants and the efficiency of absorption of incident light are both important aspects of high photocatalytic activity.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据