Enhanced photocatalytic performance of ultrasound treated GO/TiO2 composite for photocatalytic degradation of salicylic acid under sunlight illumination

被引：143
作者：
Hunge, Y. M. [1 ]
Yadav, A. A. [1 ]
Dhodamani, A. G. [3 ]
Suzuki, N. [1 ]
Terashima, C. [1 ]
Fujishima, A. [1 ]
Mathe, V. L. [2 ]
机构：
[1] Tokyo Univ Sci, Photocatalysis Int Res Ctr, Noda, Chiba 2788510, Japan
[2] Savitribai Phule Pune Univ, Dept Phys, Pune 411007, Maharashtra, India
[3] Shivaji Univ, Dept Chem, Kolhapur 416004, Maharashtra, India
来源：
ULTRASONICS SONOCHEMISTRY | 2020年 / 61卷
关键词：
Hydrothermal method; Photocatalytic degradation; Salicylic acid; Chemical oxygen demand; REDUCED GRAPHENE OXIDE; ASSISTED PHOTOELECTROCATALYTIC DEGRADATION; TIO2; WO3; SHEETS; FILMS;
D O I：
10.1016/j.ultsonch.2019.104849
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The current research work deals with the preparation of TiO2 and GO/TiO2 composite by simple, chemical, cost effective hydrothermal method. Graphene oxide (GO) is prepared by modified Hummer's method. Dispersion of GO is achieved by an ultrasonic cleaning bath for 1 h. using a power of 200 W and at a frequency of 40 kHz. The prepared catalyst material is characterized by different characterization techniques. XRD study confirms the prepared material is polycrystalline in nature. The synthesized TiO2 and GO/TiO2 photocatalyst materials are used to study the photocatalytic degradation of salicylic acid under sunlight illumination. GO/TiO2 composite shows superior photocatalytic activity than TiO2. GO/TiO2 composite shows 57% degradation of salicylic acid. Mineralization of salicylic acid is studied using chemical oxygen demand.
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页数：6
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