COLLECTION OPTICS OF TIO2 PHOTOCATALYST ON HOLLOW GLASS MICROBEADS FLOATING ON OIL-SLICKS

被引：100

作者：

ROSENBERG, I

BROCK, JR

HELLER, A

机构：

[1] Department of Chemical Engineering, University of Texas at Austin, Austin

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 08期

关键词：

D O I：

10.1021/j100187a046

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We analyze the optics of sunlight collection in hollow glass microbead attached TiO2 particles floating on oil slicks, photoassisting their dissolution. This technology uses glass microbeads that float on the oil slick. The microbeads are partially coated with a layer of 3.0-3.3-eV bandgap TiO2, a known catalyst for the photoassisted oxidation of organics. The fraction of the UV solar irradiance (lambda = 360 nm) directly and indirectly exciting the TiO2 photocatalyst is calculated. It is shown that a glass microbead collects most of the sunlight, channeling it to the attached photocatalyst particles. Therefore, 30-40% coverage of the microbeads is optimal for photodissolving oil slicks. Here, the collection optics of the floating, coated microbeads is analyzed.

引用

页码：3423 / 3428

页数：6

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