Synthesis of Fe3O4@NiO core-shell nanocomposite by the precipitation method and investigation of Cr(VI) adsorption efficiency

被引:36
作者
Mahmoudi, Esmail [1 ]
Behnajady, Mohammad A. [1 ]
机构
[1] Islamic Azad Univ, Dept Chem, Tabriz Branch, Tabriz, Iran
关键词
Fe3O4@NiO; Core-shell nanocomposite; Adsorption; Cr(VI); Isotherm; Kinetics; PHOTOCATALYTIC REDUCTION; AQUEOUS-SOLUTIONS; OPERATIONAL PARAMETERS; KINETICS ANALYSIS; ISOTHERM MODELS; REMOVAL; NANOPARTICLES; SORPTION; CADMIUM; EQUILIBRIUM;
D O I
10.1016/j.colsurfa.2017.11.020
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 work, Fe3O4@NiO core-shell nanocomposite was synthesized by precipitation method and various techniques were used to obtain its specifications. According to TEM images, the average NiO shell thickness was about 5 nm and well matched to the crystallite size obtained from XRD. The morphology and purity of the nanocomposite were investigated by SEM and EDX techniques, respectively. According to the BET method, the specific surface area was equal to 27 m(2) g(-1). The efficiency of the synthesized Fe3O4@ NiO nanocomposite to Cr (VI) removal from aqueous solutions was investigated. The results showed that the Fe3O4@ NiO nanocomposite could be considered as an effective adsorbent to remove Cr(VI). The effect of parameters such as Cr(VI) concentration, dosage of Fe3O4@NiO nanocomposite, pH and time on Cr(VI) adsorption was investigated. In addition, experimental data were analyzed with various isotherm and kinetic models. The investigation of the adsorption isotherm indicated that, among various 2-parameter models, it is most consistent and compatible with Langmuir adsorption isotherm (qm = 6.88 mg g(-1)). However, regarding 3-parameter isotherms, it is most consistent with the Sips isotherm (R-2 = 0.997). Moreover, the results revealed that adsorption kinetics in this process complies with the Ho pseudo-second-order kinetics.
引用
收藏
页码:287 / 296
页数:10
相关论文
共 50 条
  • [31] Mn3O4@ZnO Core-Shell Nanocomposite: Synthesis and Characterization
    Shafiu, S.
    Kavas, H.
    Baykal, A.
    JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, 2014, 24 (03) : 531 - 535
  • [32] Synthesis of Magnetic Nanocomposite Core-Shell Fe3O4@MCM-41-NH2 and its Application for Removal of Congo Red from Aqueous Solutions
    Khaledyan, E.
    Alizadeh, K.
    Mansourpanah, Y.
    IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE, 2019, 43 (A3): : 801 - 811
  • [33] Study of the properties and mechanism of deep reduction and efficient adsorption of Cr(VI) by low-cost Fe3O4-modified ceramsite
    Niu, Jianrui
    Ding, Pengjia
    Jia, Xiuxiu
    Hu, Guangzhi
    Li, Zaixing
    SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 688 : 994 - 1004
  • [34] Synthesis and characterization of PANI-ZrWPO4 nanocomposite: adsorption-reduction efficiency and regeneration potential for Cr(VI) removal
    Behera, Abhijit
    Sahu, Sumanta
    Pahi, Souman
    Patel, Raj Kishore
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (48) : 105627 - 105645
  • [35] Photocatalytic Degradation Process of Bisacodyl Using Fe3O4@ZnO Core-Shell Nanocomposite
    Mahboob, Amin Dadras
    Khoshnood, Razieh Sanavi
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2022, 96 (14) : 3274 - 3282
  • [36] A new sensing platform based on magnetic Fe3O4@NiO core/shell nanoparticles modified carbon paste electrode for simultaneous voltammetric determination of Quercetin and Tryptophan
    Tajyani, Sepideh
    Babaei, Ali
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2018, 808 : 50 - 58
  • [37] Synthesis of Fe3O4/Eggshell and egg membrane Nanocomposite and Application for Adsorption of Cationic and Anionic Dyes
    Besharati, Naereh
    Alizadeh, Nina
    JOURNAL OF NANOANALYSIS, 2019, 6 (04): : 217 - 227
  • [38] Adsorption Behaviour of EDTA Modified Magnetic Fe3O4 Coated Brewed Tea Waste on Cr(VI) Removal
    Camoglu, Aslihan Yilmaz
    Ozdes, Duygu
    Duran, Celal
    CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY, 2023, 6 (02): : 921 - 931
  • [39] Preparation of core-shell structure Fe3O4@C@MnO2 nanoparticles for efficient elimination of U(VI) and Eu(III) ions
    Dai, Shuhui
    Wang, Ning
    Qi, Chenjia
    Wang, Xiangxue
    Ma, Yan
    Yang, Lu
    Liu, Xiaoyan
    Huang, Qiang
    Nie, Changming
    Hu, Baowei
    Wang, Xiangke
    SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 685 : 986 - 996
  • [40] Application of Scallop shell-Fe3O4 nanoparticles for the removal of Cr(VI) from aqueous solutions
    Mohagheghian, Azita
    Vahidi-Kolur, Robabeh
    Pourmohseni, Melina
    Yang, Jae-Kyu
    Shirzad-Siboni, Mehdi
    WATER SCIENCE AND TECHNOLOGY, 2017, 75 (10) : 2369 - 2380