Removal of lead from aqueous solution by activated carbon prepared from Enteromorpha prolifera by zinc chloride activation

Activated carbon was prepared from Enteromorpha prolifera (EP) by zinc chloride activation. The physico-chemical properties of EP-activated carbon (EPAC) were characterized by thermal stability, zeta potential and Boehm titration methods. The examination showed that EPAC has a porous structure with...

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Bibliographic Details
Published inJournal of hazardous materials Vol. 183; no. 1; pp. 583 - 589
Main Authors Li, Yanhui, Du, Qiuju, Wang, Xiaodong, Zhang, Pan, Wang, Dechang, Wang, Zonghua, Xia, Yanzhi
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 15.11.2010
Elsevier
Subjects
Activated carbon
Activation
Adsorption
Applied sciences
Biodegradation, Environmental
Carbon
Charcoal - chemistry
Chemical engineering
Chlorides
Chlorophyta - metabolism
Enteromorpha prolifera
Exact sciences and technology
Isotherms
Kinetics
Lead
Lead - isolation & purification
Mathematical models
Pollution
Porosity
Reaction kinetics
Solutions
Surface chemistry
Thermodynamics
Ulva
Zinc chlorides
Zinc Compounds
Lead
Activation
Enteromorpha prolifera
Adsorption
Activated carbon
Second order
Adsorption isotherm
Porous medium
Modeling
Thermal stability
Kinetic model
Enteromorpha profijera
Batchwise
Chlorides
pH
Electrokinetic potential
Kinetics
Chemical properties
Aqueous solution
Surface area
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Summary:Activated carbon was prepared from Enteromorpha prolifera (EP) by zinc chloride activation. The physico-chemical properties of EP-activated carbon (EPAC) were characterized by thermal stability, zeta potential and Boehm titration methods. The examination showed that EPAC has a porous structure with a high surface area of 1688 m 2/g. Batch adsorption experiments were carried out to study the effect of various parameters such as initial pH, adsorbent dosage, contact time and temperature on Pb(II) ions adsorption properties by EPAC. The kinetic studies showed that the adsorption data followed a pseudo second-order kinetic model. The isotherm analysis indicated that the adsorption data can be represented by Freundlich isotherm model. Thermodynamic studies indicated that the adsorption reaction was a spontaneous and endothermic process.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2010.07.063