Dehydrated Carbon Fiber for the Recovery of Pd(II) and Pt(II) From Chloride Aqueous Solution

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Cellulose fiber was separated from date palm leaflets and was carbonized by dehydration using dilute sulfuric acid at 150°C. Produced dehydrated carbon fiber (DCF) was tested for the sorption of Pd(II) and Pt(II) at different pH, contact time, metal concentration, and temperature. With the rise in pH, sorption was found to increase for Pd(II) but decreases for Pt(II). The optimum pH ranges of 1-3 for Pt(II) and 3-3.5 for Pd(II). Approximate equilibrium was obtained within 50 hr for both metals with sorption data fitting the pseudo second order model well. Activation energy, Ea, was found to be higher than 40 kJ/mol for the sorption of both metals, indicating the involvement of chemical processes in metal sorption. The Langmuir isotherm was found to fit the sorption data more than other isotherms. Thermodynamic parameters were calculated and showed an involvement of chemical processes in metal sorption with stronger interaction for the carbon with Pb(II) than with Pt(II). Both of Pd(II) and Pt(II) were reduced to their respective elemental forms on the surface of the fiber as confirmed by scanning electron microscopy and x-ray diffraction.

Original languageEnglish
Pages (from-to)1820-1829
Number of pages10
JournalSeparation Science and Technology (Philadelphia)
Volume48
Issue number12
DOIs
Publication statusPublished - 2013

Fingerprint

Carbon fibers
Sorption
Chlorides
Recovery
Metals
Isotherms
Fibers
carbon fiber
Dehydration
Sulfuric acid
Cellulose
Carbon
Activation energy
Diffraction
Thermodynamics
X rays
Scanning electron microscopy

Keywords

  • dehydrated carbon fiber
  • pd(II)
  • pt(II)
  • reduction
  • sorption

ASJC Scopus subject areas

  • Chemistry(all)
  • Process Chemistry and Technology
  • Chemical Engineering(all)
  • Filtration and Separation

Cite this

@article{f676fc88b32b4e33a66ea75913d2d466,
title = "Dehydrated Carbon Fiber for the Recovery of Pd(II) and Pt(II) From Chloride Aqueous Solution",
abstract = "Cellulose fiber was separated from date palm leaflets and was carbonized by dehydration using dilute sulfuric acid at 150°C. Produced dehydrated carbon fiber (DCF) was tested for the sorption of Pd(II) and Pt(II) at different pH, contact time, metal concentration, and temperature. With the rise in pH, sorption was found to increase for Pd(II) but decreases for Pt(II). The optimum pH ranges of 1-3 for Pt(II) and 3-3.5 for Pd(II). Approximate equilibrium was obtained within 50 hr for both metals with sorption data fitting the pseudo second order model well. Activation energy, Ea, was found to be higher than 40 kJ/mol for the sorption of both metals, indicating the involvement of chemical processes in metal sorption. The Langmuir isotherm was found to fit the sorption data more than other isotherms. Thermodynamic parameters were calculated and showed an involvement of chemical processes in metal sorption with stronger interaction for the carbon with Pb(II) than with Pt(II). Both of Pd(II) and Pt(II) were reduced to their respective elemental forms on the surface of the fiber as confirmed by scanning electron microscopy and x-ray diffraction.",
keywords = "dehydrated carbon fiber, pd(II), pt(II), reduction, sorption",
author = "El-Shafey, {E. I.}",
year = "2013",
doi = "10.1080/01496395.2012.763172",
language = "English",
volume = "48",
pages = "1820--1829",
journal = "Separation Science and Technology",
issn = "0149-6395",
publisher = "Taylor and Francis Ltd.",
number = "12",

}

TY - JOUR

T1 - Dehydrated Carbon Fiber for the Recovery of Pd(II) and Pt(II) From Chloride Aqueous Solution

AU - El-Shafey, E. I.

PY - 2013

Y1 - 2013

N2 - Cellulose fiber was separated from date palm leaflets and was carbonized by dehydration using dilute sulfuric acid at 150°C. Produced dehydrated carbon fiber (DCF) was tested for the sorption of Pd(II) and Pt(II) at different pH, contact time, metal concentration, and temperature. With the rise in pH, sorption was found to increase for Pd(II) but decreases for Pt(II). The optimum pH ranges of 1-3 for Pt(II) and 3-3.5 for Pd(II). Approximate equilibrium was obtained within 50 hr for both metals with sorption data fitting the pseudo second order model well. Activation energy, Ea, was found to be higher than 40 kJ/mol for the sorption of both metals, indicating the involvement of chemical processes in metal sorption. The Langmuir isotherm was found to fit the sorption data more than other isotherms. Thermodynamic parameters were calculated and showed an involvement of chemical processes in metal sorption with stronger interaction for the carbon with Pb(II) than with Pt(II). Both of Pd(II) and Pt(II) were reduced to their respective elemental forms on the surface of the fiber as confirmed by scanning electron microscopy and x-ray diffraction.

AB - Cellulose fiber was separated from date palm leaflets and was carbonized by dehydration using dilute sulfuric acid at 150°C. Produced dehydrated carbon fiber (DCF) was tested for the sorption of Pd(II) and Pt(II) at different pH, contact time, metal concentration, and temperature. With the rise in pH, sorption was found to increase for Pd(II) but decreases for Pt(II). The optimum pH ranges of 1-3 for Pt(II) and 3-3.5 for Pd(II). Approximate equilibrium was obtained within 50 hr for both metals with sorption data fitting the pseudo second order model well. Activation energy, Ea, was found to be higher than 40 kJ/mol for the sorption of both metals, indicating the involvement of chemical processes in metal sorption. The Langmuir isotherm was found to fit the sorption data more than other isotherms. Thermodynamic parameters were calculated and showed an involvement of chemical processes in metal sorption with stronger interaction for the carbon with Pb(II) than with Pt(II). Both of Pd(II) and Pt(II) were reduced to their respective elemental forms on the surface of the fiber as confirmed by scanning electron microscopy and x-ray diffraction.

KW - dehydrated carbon fiber

KW - pd(II)

KW - pt(II)

KW - reduction

KW - sorption

UR - http://www.scopus.com/inward/record.url?scp=84884569879&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884569879&partnerID=8YFLogxK

U2 - 10.1080/01496395.2012.763172

DO - 10.1080/01496395.2012.763172

M3 - Article

AN - SCOPUS:84884569879

VL - 48

SP - 1820

EP - 1829

JO - Separation Science and Technology

JF - Separation Science and Technology

SN - 0149-6395

IS - 12

ER -