Show simple item record

dc.contributor.advisorWang, Peng
dc.contributor.authorTang, Bo
dc.date.accessioned2017-05-10T06:54:52Z
dc.date.available2018-05-09T00:00:00Z
dc.date.issued2017-05
dc.identifier.citationTang, B. (2017). Reduced Graphene Oxide Membranes: Applications in Fog Collection and Water Purification. KAUST Research Repository. https://doi.org/10.25781/KAUST-517ET
dc.identifier.doi10.25781/KAUST-517ET
dc.identifier.urihttp://hdl.handle.net/10754/623460
dc.description.abstractReduced graphene oxide (rGO) has attracted considerable interest recently as the low cost and chemical stable derivative of pristine graphene with application in many applications such as energy storage, water purification and electronic devices. This dissertation thoroughly investigated stacked rGO membrane fabrication process by vacuum-driven filtration, discovered asymmetry of the two surfaces of the rGO membrane, explored application perspectives of the asymmetric rGO membrane in fog collection and microstructure patterning, and disclosed membrane compaction issue during water filtration and species rejection. In more details, this dissertation revealed that, with suitable pore size, the filtration membrane substrate would leave its physical imprint on the bottom surface of the rGO membrane in the form of surface microstructures, which result in asymmetric dynamic water wettability properties of the two surfaces of the rGO membrane. The asymmetric wettability of the rGO membrane would lead to contrasting fog harvesting behavior of its two surfaces. The physical imprint mechanism was further extended to engineering pre-designed patterns selectively on the bottom surface of the rGO membrane. This dissertation, for the first time, reported the water flux and rejection kinetics, which was related to the compaction of the rGO membrane under pressure in the process of water filtration.
dc.language.isoen
dc.subjectGraphene
dc.subjectWater
dc.subjectPurification
dc.subjectSustainability
dc.subjectMembrane
dc.subjectFiltration
dc.titleReduced Graphene Oxide Membranes: Applications in Fog Collection and Water Purification
dc.typeDissertation
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.rights.embargodate2018-05-09
thesis.degree.grantorKing Abdullah University of Science and Technology
dc.contributor.committeememberNunes, Suzana Pereira
dc.contributor.committeememberLai, Zhiping
dc.contributor.committeememberGhaffour, NorEddine
dc.contributor.committeememberGoosen, Matheus
thesis.degree.disciplineEnvironmental Science and Engineering
thesis.degree.nameDoctor of Philosophy
dc.rights.accessrightsAt the time of archiving, the student author of this dissertation opted to temporarily restrict access to it. The full text of this dissertation became available to the public after the expiration of the embargo on 2018-05-09.
refterms.dateFOA2018-05-09T00:00:00Z


Files in this item

Thumbnail
Name:
PhD DISSERTATION_Bo Tang_Spring 2017.pdf
Size:
4.830Mb
Format:
PDF
Description:
PhD DISSERTATION_Bo Tang_Spring 2017

This item appears in the following Collection(s)

Show simple item record