TiO 2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications

Handle URI:
http://hdl.handle.net/10754/600270
Title:
TiO 2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications
Authors:
Xi, Baojuan; Verma, Lalit Kumar; Li, Jing ( 0000-0002-7960-176X ) ; Bhatia, Charanjit Singh; Danner, Aaron James; Yang, Hyunsoo; Zeng, Hua Chun
Abstract:
Low-cost controllable solution-based processes for preparation of titanium oxide (TiO 2) thin films are highly desirable, because of many important applications of this oxide in catalytic decomposition of volatile organic compounds, advanced oxidation processes for wastewater and bactericidal treatments, self-cleaning window glass for green intelligent buildings, dye-sensitized solar cells, solid-state semiconductor metal-oxide solar cells, self-cleaning glass for photovoltaic devices, and general heterogeneous photocatalysis for fine chemicals etc. In this work, we develop a solution-based adsorptive self-assembly approach to fabricate anatase TiO 2 thin films on different glass substrates such as simple plane glass and patterned glass at variable compositions (normal soda lime glass or solar-grade borofloat glass). By tuning the number of process cycles (i.e., adsorption-then-heating) of TiO 2 colloidal suspension, we could facilely prepare large-area TiO 2 films at a desired thickness and with uniform crystallite morphology. Moreover, our as-prepared nanostructured TiO 2 thin films on glass substrates do not cause deterioration in optical transmission of glass; instead, they improve optical performance of commercial solar cells over a wide range of incident angles of light. Our as-prepared anatase TiO 2 thin films also display superhydrophilicity and excellent photocatalytic activity for self-cleaning application. For example, our investigation of photocatalytic degradation of methyl orange indicates that these thin films are indeed highly effective, in comparison to other commercial TiO 2 thin films under identical testing conditions. © 2012 American Chemical Society.
Citation:
Xi B, Verma LK, Li J, Bhatia CS, Danner AJ, et al. (2012) TiO 2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications . ACS Applied Materials & Interfaces 4: 1093–1102. Available: http://dx.doi.org/10.1021/am201721e.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
22-Feb-2012
DOI:
10.1021/am201721e
PubMed ID:
22260264
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
This work is supported by National Research Foundation (NRF) Grant R-263-000-544-272. H.C.Z. thanks King Abdullah University of Science and Technology, Saudi Arabia, for providing financial support.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorXi, Baojuanen
dc.contributor.authorVerma, Lalit Kumaren
dc.contributor.authorLi, Jingen
dc.contributor.authorBhatia, Charanjit Singhen
dc.contributor.authorDanner, Aaron Jamesen
dc.contributor.authorYang, Hyunsooen
dc.contributor.authorZeng, Hua Chunen
dc.date.accessioned2016-02-28T08:00:24Zen
dc.date.available2016-02-28T08:00:24Zen
dc.date.issued2012-02-22en
dc.identifier.citationXi B, Verma LK, Li J, Bhatia CS, Danner AJ, et al. (2012) TiO 2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applications . ACS Applied Materials & Interfaces 4: 1093–1102. Available: http://dx.doi.org/10.1021/am201721e.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.pmid22260264en
dc.identifier.doi10.1021/am201721een
dc.identifier.urihttp://hdl.handle.net/10754/600270en
dc.description.abstractLow-cost controllable solution-based processes for preparation of titanium oxide (TiO 2) thin films are highly desirable, because of many important applications of this oxide in catalytic decomposition of volatile organic compounds, advanced oxidation processes for wastewater and bactericidal treatments, self-cleaning window glass for green intelligent buildings, dye-sensitized solar cells, solid-state semiconductor metal-oxide solar cells, self-cleaning glass for photovoltaic devices, and general heterogeneous photocatalysis for fine chemicals etc. In this work, we develop a solution-based adsorptive self-assembly approach to fabricate anatase TiO 2 thin films on different glass substrates such as simple plane glass and patterned glass at variable compositions (normal soda lime glass or solar-grade borofloat glass). By tuning the number of process cycles (i.e., adsorption-then-heating) of TiO 2 colloidal suspension, we could facilely prepare large-area TiO 2 films at a desired thickness and with uniform crystallite morphology. Moreover, our as-prepared nanostructured TiO 2 thin films on glass substrates do not cause deterioration in optical transmission of glass; instead, they improve optical performance of commercial solar cells over a wide range of incident angles of light. Our as-prepared anatase TiO 2 thin films also display superhydrophilicity and excellent photocatalytic activity for self-cleaning application. For example, our investigation of photocatalytic degradation of methyl orange indicates that these thin films are indeed highly effective, in comparison to other commercial TiO 2 thin films under identical testing conditions. © 2012 American Chemical Society.en
dc.description.sponsorshipThis work is supported by National Research Foundation (NRF) Grant R-263-000-544-272. H.C.Z. thanks King Abdullah University of Science and Technology, Saudi Arabia, for providing financial support.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectphotocatalysisen
dc.subjectself-assemblyen
dc.subjectself-cleaningen
dc.subjectsuperhydrophilicityen
dc.subjectthin filmsen
dc.subjecttitaniaen
dc.titleTiO 2 Thin Films Prepared via Adsorptive Self-Assembly for Self-Cleaning Applicationsen
dc.typeArticleen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singaporeen
kaust.authorXi, Baojuanen
kaust.authorLi, Jingen
kaust.authorZeng, Hua Chunen
kaust.grant.fundedcenterKAUST-NUS GCR Programen

Related articles on PubMed

All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.