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Copper ion adsorption by chitosan gel nanoparticles and calcium-alginate gel beads for water purification applications

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TitleInfo
Title
Copper ion adsorption by chitosan gel nanoparticles and calcium-alginate gel beads for water purification applications
Name (type = personal)
NamePart (type = family)
Yu
NamePart (type = given)
Kun
NamePart (type = date)
1983-
DisplayForm
KUN YU
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Shapley
NamePart (type = given)
Nina C.
DisplayForm
Nina C. Shapley
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = personal)
NamePart (type = family)
Hara
NamePart (type = given)
Masanori
DisplayForm
Masanori Hara
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Pedersen
NamePart (type = given)
Henrik
DisplayForm
Henrik Pedersen
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Buckley
NamePart (type = given)
Brian
DisplayForm
Brian Buckley
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2014
DateOther (qualifier = exact); (type = degree)
2014-01
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
Water purification is emerging as a critical need as resources become increasingly limited. Chitosan and alginate are both low-cost natural carbohydrate materials used for the removal of heavy metal ions from aqueous solutions. The objective of this research is to enhance understanding of the process and mechanisms of copper ion adsorption by these biopolymer gel particles at multiple size scales, with the aim of guiding the next generation of biosorbent design for water purification applications. First, the equilibrium adsorption capability of copper ions from copper sulfate solution onto chitosan gel nanoparticles, calcium-alginate gel microbeads, chitosan/alginate combination particles and large alginate gel beads at fixed pH was studied. Results show that the adsorption behavior of chitosan and alginate in the low concentration region follows the Langmuir isotherm. Chitosan gel nanoparticles exhibit a minor increase in adsorption capacity compared to other forms of chitosan. Alginate has significantly higher capacity than chitosan, which can be attributed to a comparatively higher density of adsorption sites. Combination particles consisting of alginate microbeads coated with chitosan nanoparticles possess an intermediate maximum adsorption capacity, corresponding to the weight ratio of the alginate and chitosan. Also, adsorption kinetics of copper ions onto calcium-alginate gel microbeads, chitosan/alginate combination particles and large alginate gel beads were investigated. It was observed that the adsorption kinetics of large alginate gel beads was much faster than that of alginate microbeads and combination particles. The adsorption of copper ions on to combination particles was slightly faster than on to plain alginate microbeads. A pseudo-second order kinetic model successfully predicted the adsorption behavior over the whole range of studies, indicating that chemisorption is the rate controlling step and the chemisorption reaction is second order. Moreover, the adsorption behavior of fixed-bed columns packed with large alginate gel beads was studied by varying the column size and volumetric flow rate. The column had shorter active life at a higher flow rate, or at a smaller size. The Thomas model, Adams-Bohart model and Yoon-Nelson model successfully fit experimental data, allowing prediction of the breakthrough time.
Subject (authority = RUETD)
Topic
Chemical and Biochemical Engineering
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_5222
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
xiv, 152 p. : ill.
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Kun Yu
Subject (authority = ETD-LCSH)
Topic
Water--Purification--Adsorption
Subject (authority = ETD-LCSH)
Topic
Chitosan
Subject (authority = ETD-LCSH)
Topic
Water--Purification
Subject (authority = ETD-LCSH)
Topic
Copper ions--Absorption and adsorption
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/T3610XF9
Genre (authority = ExL-Esploro)
ETD doctoral
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RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
YU
GivenName
KUN
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2013-12-18 11:38:16
AssociatedEntity
Name
KUN YU
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
RightsEvent
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2014-01-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2015-01-31
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after January 31st, 2015.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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ContentModel
ETD
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windows xp
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