New Generation Energy-Efficient Light Source for Photocatalysis: LEDs for Environmental Applications

被引：223
作者：
Jo, Wan-Kuen [1 ]
Tayade, Rajesh J. [1 ,2 ]
机构：
[1] Kyungpook Natl Univ, Dept Environm Engn, Taegu 702701, South Korea
[2] CSIR, Cent Salt & Marine Chem Res Inst, Discipline Inorgan Mat & Catalysis, Bhavnagar 364002, Gujarat, India
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2014年 / 53卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
VISIBLE-LIGHT; TITANIUM-DIOXIDE; EMITTING-DIODES; ORGANIC CONTAMINANTS; WASTE-WATER; AQUEOUS-SOLUTION; SOLAR LIGHT; O-CRESOL; AZO DYES; DEGRADATION;
D O I：
10.1021/ie404176g
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this review, current progress in the area of photocatalysis using energy efficient Light Emitting Diodes (LEDs) as an irradiation source is discussed. LEDs are small in size, robust, do not contain mercury, have a longer life span than conventional light sources, and can operate on a direct current. These properties of LEDs offer a new alternative to traditional ultraviolet sources and open new possibilities for photocatalytic degradation with reduced power consumption, along with greater freedom in the design of various types of photocatalytic reactors. The present review mainly focuses on the photocatalytic degradation of organic compounds and dyes as well as the sterilization of microrganisms which are present in water and air, using irradiation by various types of LEDs, photocatalytic reactors, and catalysts. In addition, future prospects and challenges for the application of LEDs for to photocatalytic environmental pollutant degradation have been highlighted.
引用
收藏
页码：2073 / 2084
页数：12
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