Chromium adsorption from aqueous solution using novel green nanocomposite: Adsorbent characterization, isotherm, kinetic and thermodynamic investigation

2018 ◽  
Vol 256 ◽  
pp. 163-174 ◽  
Author(s):  
Rasoul Khosravi ◽  
Gholamreza Moussavi ◽  
Mohammad Taghi Ghaneian ◽  
Mohammad Hassan Ehrampoush ◽  
Behnam Barikbin ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Thermodynamic Investigation ◽  
Chromium Adsorption ◽  
Nanocomposite Adsorbent ◽  
Adsorbent Characterization

scholarly journals Study about Doping Ion La3+ onto Surface of Pyrolusite Ore for Removing Simultaneously Both Fluoride and Phosphate from Wastewater

2017 ◽  
Vol 2017 ◽  
pp. 1-11
Author(s):  
Nguyen Thi Hue ◽  
Nguyen Hoang Tung
Keyword(s):  
Aqueous Solution ◽  
Kinetic Studies ◽  
Phosphate Adsorption ◽  
Fluoride Removal ◽  
Fluoride Adsorption ◽  
Pseudo Second Order ◽  
Xrd Techniques ◽  
Adsorbent Characterization ◽  
Coexisting Ions

Lanthanum has been doped onto the surface of the natural Pyrolusite for simultaneous removal of phosphate and fluoride in aqueous solution. The adsorbent characterization of the materials was observed by the SEM, BET, and XRD techniques. The dynamics and isotherms models of fluoride and phosphate adsorption, with respect to pH, pHPZC, adsorbent dose, and effect of coexisting ions, were studied. The results showed that lanthanum doped Pyrolusite ore (LDPO) relatively highly adsorbed amount of phosphate and fluoride from aqueous solution. Phosphate and fluoride removal efficiencies of LDPO are approximately 97% and 95%, respectively. Pseudo-first order for kinetic studies of phosphate and fluoride removal of the LDPO was observed with high correlations for fluoride but weak correlations for phosphate. However, pseudo-second order for kinetic studies was high correlation for both phosphate and fluoride. The phosphate and fluoride adsorption capacities of the LDPO significantly decreased with the existence of coions (sulfate, chloride, and nitrate) in the aqueous solution.

Co-ordination chemistry of the methylmercury(II) ion in aqueous solution: a thermodynamic investigation

2003 ◽  
Vol 356 ◽  
pp. 8-18 ◽  
Author(s):  
Lucia Alderighi ◽  
Peter Gans ◽  
Stefano Midollini ◽  
Alberto Vacca
Keyword(s):  
Aqueous Solution ◽  
Thermodynamic Investigation

scholarly journals Hexavalent chromium adsorption from aqueous solution using orange peel modified with calcium chloride: equilibrium and kinetics study

2018 ◽  
Vol 11 (17) ◽  
pp. 1-10 ◽  
Author(s):  
C. Tejada-Tovar ◽  
A. Herrera-Barros ◽  
A. Villabona-Ort�z ◽  
A. Gonz�lez-Delgado ◽  
J. N��ez-Zarur ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Calcium Chloride ◽  
Hexavalent Chromium ◽  
Orange Peel ◽  
Kinetics Study ◽  
Equilibrium And Kinetics ◽  
Chromium Adsorption

Nanocomposite adsorbent based on ß-cyclodextrin-PVP-clay for the removal of naproxen from aqueous solution: fixed-bed column and modeling studies

2018 ◽  
Vol 132 ◽  
pp. 63-74 ◽  
Author(s):  
Lida Rafati ◽  
Mohammad Hassan Ehrampoush ◽  
Amir Abbas Rafati ◽  
Mehdi Mokhtari ◽  
Amir Hossein Mahvi
Keyword(s):  
Aqueous Solution ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Modeling Studies ◽  
Nanocomposite Adsorbent

Novel Fe3 O4 /hydroxyapatite/β-cyclodextrin nanocomposite adsorbent: Synthesis and application in heavy metal removal from aqueous solution

2018 ◽  
Vol 33 (1) ◽  
pp. e4634 ◽  
Author(s):  
Ali Ansari ◽  
Shahrokh Vahedi ◽  
Omid Tavakoli ◽  
Mehdi Khoobi ◽  
Mohammad Ali Faramarzi
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Nanocomposite Adsorbent
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