Improvement of the photocatalytic activity of cupric oxide by deposition onto a natural clinoptilolite substrate

被引:37
作者
Amiri, Mehdi [1 ]
Nezamzadeh-Ejhieh, Alireza [1 ]
机构
[1] Islamic Azad Univ, Dept Chem, Shahreza Branch, Shahreza, Isfahan, Iran
关键词
Heterogeneous photodegradation; CuO semiconductor; Benzene-12-diamine; Clinoptilolite; NANO-PARTICLES; THERMAL-DECOMPOSITION; AQUEOUS-SOLUTION; METHYLENE-BLUE; CUO/X ZEOLITE; DEGRADATION; PHOTODEGRADATION; COPPER; NANOPARTICLES; WATER;
D O I
10.1016/j.mssp.2014.12.030
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
CuO was loaded onto clinoptilolite particles and used in the photodegradation of benzene1,2-diamine (BD) under UV irradiation. The photocatalyst was prepared by ion exchanging of parent natural clinoptilolite with copper(II) sulfate aqueous solution (0.4 mol L-1) for 20 h followed by drying and calcination at 450 degrees C for 8 h. Raw and modified samples were characterized by XRD, SEM-EDAX, DRS and BET methods. The degradation extents were evaluated by UV-vis absorption spectrophotometric, chemical Oxygen demand (COD) and HPLC methods. The primary objective was to determine the optimal conditions for experimental parameters which were obtained as: 2.0 g L-1 of the photocatalyst, 20 mg L-1 of benzene-1,2-diamine, pH 6.0 and 43 mmol L-1 of H2O2. The degradation process obeyed first-order kinetics. (C) Elsevier Ltd. All rights reserved.
引用
收藏
页码:501 / 508
页数:8
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