Fabrication of attapulgite/magnetic aminated chitosan composite as efficient and reusable adsorbent for Cr (VI) ions

被引:74
作者
Eltaweil, Abdelazeem S. [1 ]
Abd El-Monaem, Eman M. [1 ]
Mohy-Eldin, Mohamed S. [2 ]
Omer, Ahmed M. [2 ]
机构
[1] Alexandria Univ, Fac Sci, Chem Dept, Alexandria, Egypt
[2] City Sci Res & Technol Applicat SRTA City, Polymer Mat Res Dept, Adv Technol & New Mat Res Inst ATNMRI, POB 21934, Alexandria, Egypt
关键词
SCHIFF-BASE DERIVATIVES; ZERO-VALENT IRON; AQUEOUS-SOLUTION; CHROMIUM VI; SIMULTANEOUS REDUCTION; CONGO RED; REMOVAL; ADSORPTION; CR(VI); DYE;
D O I
10.1038/s41598-021-96145-6
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
An efficient composite was constructed based on aminated chitosan (NH2Cs), attapulgite (ATP) clay and magnetic Fe3O4 for adsorptive removal of Cr(VI) ions. The as-fabricated ATP@Fe3O4-NH2Cs composite was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Thermal Gravimetric Analyzer (TGA), Scanning Electron Microscope (SEM), Zeta potential (ZP), Vibrating Sample Magnetometer (VSM), Brunauer-Emmett-Teller method (BET) and X-ray photoelectron spectroscope (XPS). A significant improve in the adsorption profile was established at pH 2 in the order of ATP@Fe3O4-NH2Cs(1:3) > ATP@Fe3O4-NH2Cs(1:1) > ATP@Fe3O4-NH2Cs(3:1) > Fe3O4-NH2Cs > ATP. The maximum removal (%) of Cr(VI) exceeded 94% within a short equilibrium time of 60 min. The adsorption process obeyed the pseudo 2nd order and followed the Langmuir isotherm model with a maximum monolayer adsorption capacity of 294.12 mg/g. In addition, thermodynamics studies elucidated that the adsorption process was spontaneous, randomness and endothermic process. Interestingly, the developed adsorbent retained respectable adsorption properties with acceptable removal efficiency exceeded 58% after ten sequential cycles of reuse. Besides, the results hypothesize that the adsorption process occurs via electrostatic interactions, reduction of Cr(VI) to Cr(III) and ion-exchanging. These findings substantiate that the ATP@Fe3O4-NH2Cs composite could be effectively applied as a reusable adsorbent for removing of Cr(VI) ions from aqueous solutions.
引用
收藏
页数:15
相关论文
共 78 条
[1]   Equilibrium and kinetics modeling of fluoride adsorption onto activated alumina, alum and brick powder [J].
Ahamad K.U. ;
Singh R. ;
Baruah I. ;
Choudhury H. ;
Sharma M.R. .
Groundwater for Sustainable Development, 2018, 7 :452-458
[2]   The role of bentonite clay and bentonite clay@MnFe2O4 composite and their physico-chemical properties on the removal of Cr(III) and Cr(VI) from aqueous media [J].
Ahmadi, Amir ;
Foroutan, Rauf ;
Esmaeili, Hossein ;
Tamjidi, Sajad .
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2020, 27 (12) :14044-14057
[3]   Efficient Removal of Cr(VI) from Water by Biochar and Activated Carbon Prepared through Hydrothermal Carbonization and Pyrolysis: Adsorption-Coupled Reduction Mechanism [J].
Anh Tuan Vo ;
Van Phuong Nguyen ;
Ouakouak, Abdelkader ;
Nieva, Aileen ;
Doma, Bonifacio T., Jr. ;
Hai Nguyen Tran ;
Chao, Huan-Ping .
WATER, 2019, 11 (06)
[4]  
[Anonymous], 2017, Sci. Rep., DOI DOI 10.1038/SREP43599
[5]   Elucidation of mechanism involved in adsorption of Pb(II) onto lobeira fruit (Solanum lycocarpum) using Langmuir, Freundlich and Temkin isotherms [J].
Araujo, Cleide S. T. ;
Almeida, Ione L. S. ;
Rezende, Helen C. ;
Marcionilio, Suzana M. L. O. ;
Leon, Jose J. L. ;
de Matos, Tulip N. .
MICROCHEMICAL JOURNAL, 2018, 137 :348-354
[6]   Synthesis and characterization of PVP-functionalized superparamagnetic Fe3O4 nanoparticles as an MRI contrast agent [J].
Arsalani, N. ;
Fattahi, H. ;
Nazarpoor, M. .
EXPRESS POLYMER LETTERS, 2010, 4 (06) :329-338
[7]   Electrospun biocompatible Chitosan/MIL-101 (Fe) composite nanofibers for solid-phase extraction of Δ9-tetrahydrocannabinol in whole blood samples using Box-Behnken experimental design [J].
Asiabi, Mina ;
Mehdinia, Ali ;
Jabbari, Ali .
JOURNAL OF CHROMATOGRAPHY A, 2017, 1479 :71-80
[8]   Low-Cost Synthesis of Flowerlike α-Fe2O3 Nanostructures for Heavy Metal Ion Removal: Adsorption Property and Mechanism [J].
Cao, Chang-Yan ;
Qu, Jin ;
Yan, Wen-Sheng ;
Zhu, Jun-Fa ;
Wu, Zi-Yu ;
Song, Wei-Guo .
LANGMUIR, 2012, 28 (09) :4573-4579
[9]   Adsorption study for removal of Congo red anionic dye using organo-attapulgite [J].
Chen, H. ;
Zhao, J. .
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY, 2009, 15 (04) :381-389
[10]   Constructing MoS2/Lignin-derived carbon nanocomposites for highly efficient removal of Cr(VI) from aqueous environment [J].
Chen, Haijun ;
Zhang, Zhibin ;
Zhong, Xiao ;
Zhuo, Zhenjiang ;
Tian, Shenglong ;
Fu, Shiyu ;
Chen, Yan ;
Liu, Yunhai .
JOURNAL OF HAZARDOUS MATERIALS, 2021, 408