Photocatalytic Application of TiO2-AgI Hybrid for Degradation of Organic Pollutants in Water

被引：15
作者：
Tavakoli, F. [1 ]
Badiei, A. [1 ]
Ziarani, G. Mohammadi [2 ]
Tarighi, S. [3 ]
机构：
[1] Univ Tehran, Coll Sci, Sch Chem, Tehran, Iran
[2] Alzahra Univ, Dept Chem, Vanak Sq,POB 1993893973, Tehran, Iran
[3] Iran Polymer & Petrochem Inst, Fac Petrochem, POB 14965-115, Tehran, Iran
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH | 2017年 / 11卷 / 02期
关键词：
Photocatalyst; TiO2; Hybrid; Pollutants; Ultrasound; Photodegradation; PHOTODEGRADATION; NANOPARTICLES; DYE; POLYCRYSTALS;
D O I：
10.1007/s41742-017-0021-7
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Herein, we synthesized AgI-TiO2 hybrid photocatalyst by the sonochemical method. The as-produced hybrid was characterized by using XRD, FESEM, EDS, DRS and PL. The AgI-TiO2 hybrid possessed high photocatalytic properties. The photocatalytic performance of AgI-TiO2 hybrid was studied on photodegradation of Acid Orange 7 (AO7). The hybrid with 25 wt% AgI showed enhanced photocatalytic degradation (95%) compared to pure TiO2 (61%) and AgI (53%). According to our results, on increasing the weight ratio of AgI from 0.5 to 25 wt%, photodegradation was increased from 38 to 95%, but on increasing the weight ratio of AgI from 25 to 75 wt%, photodegradation was decreased from 95 to 25%. So, the weight ratio of AgI is a crucial factor in photodegradation of AO7. On the other hand, ultrasound irradiation had crucial effect on the photocatalytic efficiency of the as-prepared hybrid.
引用
收藏
页码：217 / 224
页数：8
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