Sonophotocatalytic degradation of methyl orange using ZnO nano-aggregates

被引：103

作者：

Kumar, Rajesh ^{[1
]}

Kumar, Girish ^{[1
]}

Akhtar, M. S. ^{[2
]}

Umar, Ahmad ^{[3
,4
]}

机构：

[1] JCDAV Coll, PG Dept Chem, Dasuya 144205, Punjab, India

[2] Chonbuk Natl Univ, New & Renewable Energy Mat Dev Ctr New REC, Jeonju, South Korea

[3] Najran Univ, Fac Arts & Sci, Dept Chem, Najran 11001, Saudi Arabia

[4] Najran Univ, Promising Ctr Sensors & Elect Devices, Najran 11001, Saudi Arabia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 629卷

关键词：

ZnO nano-aggregates; Photocatalyst; Sonication; Degradation; Methyl orange; PHOTOCATALYTIC DEGRADATION; SONOCATALYTIC DEGRADATION; ULTRASONIC IRRADIATION; AQUEOUS-SOLUTIONS; SIZED ZNO; AZO DYES; NANOPARTICLES; WATER; RED; SONOCHEMISTRY;

D O I：

10.1016/j.jallcom.2014.12.232

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：

A simple, facile and rapid solution combustion method utilizing dextrose as fuel was employed to synthesize zinc oxide (ZnO) nano-aggregates at high temperature 450 degrees C. The synthesized nanomaterials were characterized in terms of their morphological, structural, compositional, optical and photocatalytic properties. The detailed characterizations confirmed that the synthesized ZnO nano-aggregate possessed high density and exhibit well-crystallinity with good optical properties. The sonophotocatalytic properties of the synthesized ZnO nano-aggregates was carried out by performing the degradation of methyl orange (MO) dye under UV light. A strong synergism was observed between UV light and ZnO nano-aggregates for the photodegradation process, whereas sonolytic and photolytic degradation processes were found to operate independently. The presence of air in the aqueous suspensions of MO dye was also shown a significant impact in the photodegradation rate. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：167 / 172

页数：6

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