Deposition of MnO2 nanoparticles on the magnetic halloysite nanotubes by hydrothermal method for lead(II) removal from aqueous solutions

被引:54
作者
Afzali, Daryoush [1 ]
Fayazi, Maryam [1 ]
机构
[1] Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Dept Environm, Kerman, Iran
关键词
Lead; Adsorption; Manganese oxide; Halloysite nanotubes; Composite; Removal; SELECTIVE REMOVAL; CARBON NANOTUBES; PB(II) ADSORPTION; WATER SAMPLES; COMPOSITE; POLYMER; IONS; PRECONCENTRATION; CADMIUM(II); ADSORBENT;
D O I
10.1016/j.jtice.2016.02.025
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The magnetic halloysite nanotubes@manganese oxide (MHNTs@MnO2) nanocomposite was synthesized and applied as a novel sorbent for removal of lead(II) ions. The prepared sorbent was characterized by using Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM) analysis. Batch mode adsorption studies were performed to evaluate the adsorption kinetics, adsorption isotherms, and selective recognition of MHNTs@MnO2. The equilibrium data was evaluated using Langmuir and Freundlich isotherm. The kinetic data were analyzed using Lagergren pseudo-first-order and pseudo-second order equations. The pseudo-second-order exhibited the best fit for the kinetic studies (R-2 = 0.9999). Equilibrium data fitted by Langmuir adsorption isotherm and the maximum adsorption capacity was calculated as 59.9 mg/g. The adsorption was analyzed thermodynamically, and the results revealed that the removal process was spontaneous and endothermic. In addition, no obvious decrease was observed after up to five adsorption cycles, indicating that the MHNTs@MnO2 adsorbent has a good stability and reusability. It was concluded that MHNTs@MnO2 nanocomposite is an effective material for the removal of Pb(II) from aqueous solutions. (C) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:421 / 429
页数:9
相关论文
共 44 条
[1]   Development of novel adsorbent-mangrove-alginate composite bead (MACB) for removal of Pb(II) from aqueous solution [J].
Abas, Siti Nur Aeisyah ;
Ismail, Mohd Halim Shah ;
Siajam, Shamsul Izhar ;
Kamal, Md Lias .
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2015, 50 :182-189
[2]   Removal, preconcentration and determination of Mo(VI) from water and wastewater samples using maghemite nanoparticles [J].
Afkhami, Abbas ;
Norooz-Asl, Rasoul .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2009, 346 (1-3) :52-57
[3]  
[Anonymous], 1906, ADSORPTION LOSUNGEN
[4]   MODELING OF LIQUID-CHROMATOGRAPHY EQUILIBRIA [J].
BELLOT, JC ;
CONDORET, JS .
PROCESS BIOCHEMISTRY, 1993, 28 (06) :365-376
[5]  
Bo L, 2015, J ENVIRON CHEM ENG, V3, P1468, DOI DOI 10.1016/J.JECE.2015.05.023
[6]   One-pot synthesis of MnO2/graphene/carbon nanotube hybrid by chemical method [J].
Chen, Ying ;
Zhang, Yong ;
Geng, Dognsheng ;
Li, Ruying ;
Hong, Hanlie ;
Chen, Jingzhong ;
Sun, Xueliang .
CARBON, 2011, 49 (13) :4434-4442
[7]   MnO2 nanowires in situ grown on diatomite: Highly efficient absorbents for the removal of Cr(VI) and As(V) [J].
Du, Yucheng ;
Zheng, Guangwei ;
Wang, Jinshu ;
Wang, Liping ;
Wu, Junshu ;
Dai, Hongxing .
MICROPOROUS AND MESOPOROUS MATERIALS, 2014, 200 :27-34
[8]   Removal of cadmium(II) and lead(II) from aqueous solution using sulfur-functionalized silica prepared by hydrothermal-assisted grafting method [J].
Fan, Hong-Tao ;
Wu, Jin-Bao ;
Fan, Xue-Lei ;
Zhang, Dong-Sheng ;
Su, Zi-Jie ;
Yan, Feng ;
Sun, Ting .
CHEMICAL ENGINEERING JOURNAL, 2012, 198 :355-363
[9]   Preparation of molecularly imprinted polymer coated magnetic multi-walled carbon nanotubes for selective removal of dibenzothiophene [J].
Fayazi, Maryam ;
Taher, Mohammad Ali ;
Afzali, Daryoush ;
Mostafavi, Ali .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2015, 40 :501-507
[10]   The adsorption of basic dye (Alizarin red S) from aqueous solution onto activated carbon/γ-Fe2O3 nano-composite: Kinetic and equilibrium studies [J].
Fayazi, Maryam ;
Ghanei-Motlagh, Masoud ;
Taher, Mohammad Ali .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2015, 40 :35-43