Ultrasound-assisted adsorption of dyes and cadmium ion from aqueous solutions by ZnAl2O4 nanoparticles

被引:12
作者
Hachem, Kadda [1 ]
Bokov, Dmitry [2 ]
Farahani, Meysam Davoodabadi [3 ]
Mehdizade, Bentolhoda [4 ]
Farizhandi, Amir Abbas Kazemzadeh [5 ]
机构
[1] Univ Saida Dr Moulay Tahar, Lab Biotoxicol, Pharmacognosy & Biol Valorizat Plants LBPVBP, Fac Sci, Dr Moulay Tahar, Saida 20000, Algeria
[2] Sechenov First Moscow State Med Univ, Inst Pharm, 8 Trubetskaya St,Bldg, Moscow 119991, Russia
[3] Shahrood Univ Technol, Fac Min Petr & Geophys Engn, Shahrood, Iran
[4] Islamic Azad Univ, South Tehran Branch, Dept Med Engn, Tehran, Iran
[5] Boise State Univ, Dept Comp Sci, 777 Main St, Boise, ID 83702 USA
关键词
Auramine O; Cadmium; Methylene blue; Response surface methodology; ZnAl2O4; nanoparticles; RESPONSE-SURFACE METHODOLOGY; AURAMINE-O; ACTIVATED CARBON; WASTE-WATER; REMOVAL; NANOCOMPOSITE; OPTIMIZATION; COMPOSITE; CD(II);
D O I
10.1016/j.matchemphys.2021.125398
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, we investigated the process of removing heavy metal ions and dyes by ZnAl2O4 nanoparticles from an aqueous solution. ZnAl2O4 nanoparticles were characterized by various physicochemical techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM), and Brauer-Emmett-teller (BET). The parameters of solution pH, sonication time, adsorbent amount, Cd2+, AO, and MB concentrations were investigated under different conditions. We performed the process modeling by Box-Behnken design (BBD) based on response surface methodology (RSM). A second-order polynomial equation was proposed to remove the desired analytes. The high values of the R(2)adj> 98% and R(2)pred> 97% parameters indicated the accuracy of second-order polynomial equations for all three analytes. In optimal conditions (pH = 6 for Cd2+, pH = 7 for AO and MB dyes, Cd2+ concentration 20 mg L-1, adsorbent amount 55 mg, ultrasound time 17 min, concentration of AO and MB dyes 10 mg L-1) 92.78%, 97.73%, and 95.30% were removed from Cd2+, AO and MB, respectively. Interference studies showed that the presence of different ions did not considerably affect the removal of Cd2+, AO, and MB. Reusability studies were analyzed based on the number of adsorption-desorption cycles, and the results showed no significant reduction in ZnAl2O4 efficiency if ZnAl2O4 is reused up to 5 times. ZnAl2O4 nanoparticles were also used to remove Cd2+, AO, and MB from environmental and wastewater samples. The results showed that the above process could be used with appropriate and high efficiency to remove Cd2+, AO, and MB from environmental water samples.
引用
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页数:10
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