dc.identifier.uri |
http://dx.doi.org/10.15488/1385 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1410 |
|
dc.contributor.author |
Wehling, Julia
|
|
dc.contributor.author |
Köser, Jan
|
|
dc.contributor.author |
Lindner, Patrick
|
|
dc.contributor.author |
Lüder, Christian
|
|
dc.contributor.author |
Beutel, Sascha
|
|
dc.contributor.author |
Kroll, Stephen
|
|
dc.contributor.author |
Rezwan, Kurosch
|
|
dc.date.accessioned |
2017-04-21T11:19:49Z |
|
dc.date.available |
2017-04-21T11:19:49Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
Wehling, J.; Köser, J.; Lindner, P.; Lüder, C.; Beutel, S. et al.: Silver nanoparticle-doped zirconia capillaries for enhanced bacterial filtration. In: Materials Science and Engineering C 48 (2014), S. 179-187. DOI: https://doi.org/10.1016/j.msec.2014.12.001 |
|
dc.description.abstract |
Membrane clogging and biofilm formation are the most serious problems during water filtration. Silver nanoparticle (Agnano) coatings on filtration membranes can prevent bacterial adhesion and the initiation of biofilm formation. In this study, Agnano are immobilized via direct reduction on porous zirconia capillary membranes to generate a nanocomposite material combining the advantages of ceramics being chemically, thermally and mechanically stable with nanosilver, an efficient broadband bactericide for water decontamination. The filtration of bacterial suspensions of the fecal contaminant Escherichia coli reveals highly efficient bacterial retention capacities of the capillaries of 8 log reduction values, fulfilling the requirements on safe drinking water according to the U.S. Environmental Protection Agency. Maximum bacterial loading capacities of the capillary membranes are determined to be 3 × 109 bacterial cells/750 mm2 capillary surface until back flushing is recommendable. The immobilized Agnano remain accessible and exhibit strong bactericidal properties by killing retained bacteria up to maximum bacterial loads of 6 × 108 bacterial cells/750 mm2 capillary surface and the regenerated membranes regain filtration efficiencies of 95–100%. Silver release is moderate as only 0.8% of the initial silver loading is leached during a three-day filtration experiment leading to average silver contaminant levels of 100 μg/L. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
London : Elsevier Ltd. |
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dc.relation.ispartofseries |
Materials Science and Engineering C 48 (2014) |
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dc.rights |
CC BY-NC-ND 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
dc.subject |
Bactericide membrane surface |
eng |
dc.subject |
Ceramic capillary membrane |
eng |
dc.subject |
Immobilized silver nanoparticles |
eng |
dc.subject |
Macroporous |
eng |
dc.subject |
Silver leaching |
eng |
dc.subject |
Bactericides |
eng |
dc.subject |
Biofilms |
eng |
dc.subject |
Capillarity |
eng |
dc.subject |
Ceramic materials |
eng |
dc.subject |
Environmental Protection Agency |
eng |
dc.subject |
Escherichia coli |
eng |
dc.subject |
Leaching |
eng |
dc.subject |
Loading |
eng |
dc.subject |
Membranes |
eng |
dc.subject |
Microfiltration |
eng |
dc.subject |
Nanocomposites |
eng |
dc.subject |
Nanoparticles |
eng |
dc.subject |
Potable water |
eng |
dc.subject |
Water filtration |
eng |
dc.subject |
Zirconia |
eng |
dc.subject |
Ceramic capillary membranes |
eng |
dc.subject |
Macroporous |
eng |
dc.subject |
Membrane surface |
eng |
dc.subject |
Silver leaching |
eng |
dc.subject |
Silver nanoparticles |
eng |
dc.subject |
Silver |
eng |
dc.subject |
antiinfective agent |
eng |
dc.subject |
artificial membrane |
eng |
dc.subject |
metal nanoparticle |
eng |
dc.subject |
zirconium |
eng |
dc.subject |
zirconium oxide |
eng |
dc.subject |
artificial membrane |
eng |
dc.subject |
ceramics |
eng |
dc.subject |
chemistry |
eng |
dc.subject |
devices |
eng |
dc.subject |
drug effects |
eng |
dc.subject |
equipment design |
eng |
dc.subject |
Escherichia coli |
eng |
dc.subject |
procedures |
eng |
dc.subject |
surface property |
eng |
dc.subject |
water management |
eng |
dc.subject |
Anti-Bacterial Agents |
eng |
dc.subject |
Equipment Design |
eng |
dc.subject |
Membranes, Artificial |
eng |
dc.subject |
Metal Nanoparticles |
eng |
dc.subject |
Surface Properties |
eng |
dc.subject |
Water Purification |
eng |
dc.subject |
Zirconium |
eng |
dc.subject.ddc |
620 | Ingenieurwissenschaften und Maschinenbau
|
ger |
dc.subject.ddc |
590 | Tiere (Zoologie)
|
ger |
dc.title |
Silver nanoparticle-doped zirconia capillaries for enhanced bacterial filtration |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
0928-4931 |
|
dc.relation.doi |
10.1016/j.msec.2014.12.001 |
|
dc.bibliographicCitation.volume |
48 |
|
dc.bibliographicCitation.firstPage |
179 |
|
dc.bibliographicCitation.lastPage |
187 |
|
dc.description.version |
acceptedVersion |
|
tib.accessRights |
frei zug�nglich |
|