Kinetic and thermodynamic studies of Cu(II) adsorption onto calcium phosphate

被引：1
|
作者：
Dogan, Ozlem [1 ]
Bodur, Basra [1 ]
Inan, Gozde [1 ]
机构：
[1] Yildiz Tech Univ, Chem Engn Dept, TR-34210 Istanbul, Turkey
来源：
DESALINATION AND WATER TREATMENT | 2018年 / 111卷
关键词：
Adsorption isotherm; Kinetics; Thermodynamics; Heavy metals; Calcium phosphate; Copper; WASTE-WATER TREATMENT; HEAVY-METAL IONS; AQUEOUS-SOLUTION; ACTIVATED CARBON; HYDROXYAPATITE NANOPARTICLES; REMOVAL; EQUILIBRIUM; COPPER(II); ADSORBENTS; PARAMETERS;
D O I：
10.5004/dwt.2018.22242
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Adsorption of Cu(II) from aqueous solutions by calcium phosphate powders, which were produced by wet chemical synthesis has been studied. The equilibrium data were analyzed using Langmuir and Freundlich isotherm models. It was determined that the Langmuir isotherm fitted well the adsorption isotherm of Cu(II). As a result of the experiments performed, the maximum adsorption capacities of powders increased from 13.76 mg/g to 19.92 mg/g when the adsorbent production temperature decreased from 70 degrees C to 25 degrees C. Thermodynamic data revealed that the adsorption process was spontaneous and endothermic. Adsorption kinetics data were tested using pseudo-first-order, pseudo-second-order, and intraparticle diffusion models. The pseudo-second-order model is the most convenient model to represent the adsorption kinetic.
引用
收藏
页码：322 / 328
页数：7
相关论文
共 50 条
  • [1] Adsorption Kinetic and Thermodynamic Studies of Phosphate onto Tantalum Hydroxide
    Yu, Shi-Hua
    Dong, Xiao-Le
    Gong, Hong
    Jiang, Heng
    Liu, Zhi-Gang
    WATER ENVIRONMENT RESEARCH, 2012, 84 (12) : 2115 - 2122
  • [2] Kinetic and thermodynamic studies of the adsorption of Pb(II), Cr(III) and Cu(II) onto modified bentonite
    Zahaf, Faiza
    Marouf, Reda
    Ouadjenia, Fatima
    Schott, Jacques
    DESALINATION AND WATER TREATMENT, 2018, 131 : 282 - 290
  • [3] Cu(II) adsorption onto Platanus orientalis leaf powder: kinetic, isotherm, and thermodynamic studies
    S. Abadian
    A. Rahbar-Kelishami
    R. Norouzbeigi
    M. Peydayesh
    Research on Chemical Intermediates, 2015, 41 : 7669 - 7681
  • [4] Cu(II) adsorption onto Platanus orientalis leaf powder: kinetic, isotherm, and thermodynamic studies
    Abadian, S.
    Rahbar-Kelishami, A.
    Norouzbeigi, R.
    Peydayesh, M.
    RESEARCH ON CHEMICAL INTERMEDIATES, 2015, 41 (10) : 7669 - 7681
  • [5] Adsorption of Cu(II) onto Fe(III)-Modified Montmorillonite - Kinetic, Isotherm, and Thermodynamic Studies
    Kenneth Cruz, John
    Joy Diaz, Leslie
    2019 2ND INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING AND APPLICATIONS (ICMEA 2019), 2019, 540
  • [6] Kinetic and thermodynamic studies of the adsorption of lead (II) ions onto phosphate-modified kaolinite clay
    Unuabonah, E. I.
    Adebowale, K. O.
    Olu-Owolabi, B. I.
    JOURNAL OF HAZARDOUS MATERIALS, 2007, 144 (1-2) : 386 - 395
  • [7] Equilibrium, kinetic and thermodynamic studies on the adsorption of phenol onto activated phosphate rock
    Alzaydien, Atef S.
    Manasreh, Waleed
    INTERNATIONAL JOURNAL OF THE PHYSICAL SCIENCES, 2009, 4 (04): : 172 - 181
  • [8] Adsorption of Zn(II) onto Turkish soil: equilibrium, kinetic and thermodynamic studies
    Asci, Y.
    DESALINATION AND WATER TREATMENT, 2012, 45 (1-3) : 61 - 69
  • [9] Adsorption characterization of Pb(II) and Cu(II) ions onto chitosan-tripolyphosphate beads: Kinetic, equilibrium and thermodynamic studies
    Ngah, W. S. Wan
    Fatinathan, S.
    JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2010, 91 (04) : 958 - 969
  • [10] Equilibrium, kinetic and thermodynamic studies on the biosorption of Cu(II) onto chestnut shell
    Yao, Z. -Y.
    Qi, J. -H.
    Wang, L. -H.
    JOURNAL OF HAZARDOUS MATERIALS, 2010, 174 (1-3) : 137 - 143
12345