Influence of γ and ultrasonic irradiations on the physicochemical properties of CeO2-Fe2O3-Al2O3 for textile dyes removal applications

被引：17
作者：
Ibrahim, Marwa M. [1 ]
El-Molla, Sahar A. [1 ]
Ismail, Sahar A. [2 ]
机构：
[1] Ain Shams Univ, Fac Educ, Dept Chem, Cairo 11711, Egypt
[2] Natl Ctr Radiat Res & Technol, POB 29, Cairo 11731, Egypt
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2018年 / 1158卷
关键词：
Porous CeO2-Fe2O3-Al2O3; gamma; -radiation; Ultrasonic radiation; X-ray; Dye removal; Adsorption; HYBRID MATERIAL; CATIONIC DYES; WASTE-WATER; ADSORPTION; ZNO; ADSORBENT; CARBON; CEO2; NANOCOMPOSITE; NANOPARTICLES;
D O I：
10.1016/j.molstruc.2018.01.034
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：
In this study highly effective adsorbent ternary mixed oxide CeO2-Fe2O3-Al2O3 was prepared by precipitation method. Various methods used to treat the mixed hydroxide like calcination, ultrasonic, hydrothermal and gamma radiation with different doses to obtain the ternary mixed oxide. XRD, TEM, EDX, FTIR and S-BET are used to study the physicochemical properties of nanoparticles. The CFA(H) and CFA(gamma 0.8) have the different morphologies and high surface area. Batch adsorption experiments were performed to remove anionic Remazol Red RB-133 dye. The experimental data showed that The CFAH and CFA(gamma 0.8) have high adsorption rate for removing of dye. The removal of dye is enhanced by ultrasonic radiation and high temperature. The adsorption process was fitted well for pseudo second order kinetics and followed the Freundlich isotherm model. In addition to, Thermodynamic results of adsorption process displayed that, the adsorption of dye on adsorbent was spontaneous, endothermic and chemisorptions process. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：234 / 244
页数：11
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