Review of self-cleaning TiO2 thin films deposited with spin coating

Lukong, Valantine Takwa; Ukoba, Kingsley; Jen, Tien‐Chien

doi:10.1007/s00170-022-10043-3

Cited by 21 publications

(7 citation statements)

References 189 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conversely, TiO 2 coating by ALD is challenging to scale into mass production. Nonetheless, it could be achieved by cheaper methods, such as spin coating or sol-gel, to overcome this limitation 79 , 80 .…”

Section: Resultsmentioning

confidence: 99%

Reconfigurable self-assembly of photocatalytic magnetic microrobots for water purification

Urso,

Ussia,

Peng

et al. 2023

Nat Commun

View full text Add to dashboard Cite

The development of artificial small-scale robotic swarms with nature-mimicking collective behaviors represents the frontier of research in robotics. While microrobot swarming under magnetic manipulation has been extensively explored, light-induced self-organization of micro- and nanorobots is still challenging. This study demonstrates the interaction-controlled, reconfigurable, reversible, and active self-assembly of TiO2/α-Fe2O3 microrobots, consisting of peanut-shaped α-Fe2O3 (hematite) microparticles synthesized by a hydrothermal method and covered with a thin layer of TiO2 by atomic layer deposition (ALD). Due to their photocatalytic and ferromagnetic properties, microrobots autonomously move in water under light irradiation, while a magnetic field precisely controls their direction. In the presence of H2O2 fuel, concentration gradients around the illuminated microrobots result in mutual attraction by phoretic interactions, inducing their spontaneous organization into self-propelled clusters. In the dark, clusters reversibly reconfigure into microchains where microrobots are aligned due to magnetic dipole-dipole interactions. Microrobots’ active motion and photocatalytic properties were investigated for water remediation from pesticides, obtaining the rapid degradation of the extensively used, persistent, and hazardous herbicide 2,4-Dichlorophenoxyacetic acid (2,4D). This study potentially impacts the realization of future intelligent adaptive metamachines and the application of light-powered self-propelled micro- and nanomotors toward the degradation of persistent organic pollutants (POPs) or micro- and nanoplastics.

show abstract

Section: Resultsmentioning

confidence: 99%

Reconfigurable self-assembly of photocatalytic magnetic microrobots for water purification

Urso,

Ussia,

Peng

et al. 2023

Nat Commun

View full text Add to dashboard Cite

show abstract

“…100 T 1 and T 2 were the transition temperatures during heating and cooling, respectively. Their report found a VO 2 film thickness of 35 nm to be the ideal coating thickness for achieving 99 excellent visual transparency and high thermochromic switching. Since the spin coating process is cheap and easy to operate, it has been employed by several researchers to study the structural, optical, and morphological properties of VO 2 thin film.…”

Section: Pulse Laser Depositionmentioning

confidence: 99%

Fabrication of vanadium dioxide thin films and application of its thermochromic and photochromic nature in self-cleaning: A review

Lukong

Ukoba

Jen

2022

Energy & Environment

View full text Add to dashboard Cite

Vanadium dioxide (VO2) and many binary compounds of vanadium can transform from a semiconducting state to a metallic state under the influence of temperature or light. The transformation is triggered by modifications in the oxide's crystalline structure, often initiated by changes in its light-sensing and electrical attributes. This ability makes them suitable for smart coatings, electronic switches, self-cleaning surfaces, window glass, and many more. These potential applications have prompted tremendous interest in VO2thin films, focusing on their fabrication and application. This article reviews current fabrication methods for VO2thin films, the potential application of their thermochromic and photochromic properties in self-cleaning coatings, the challenges facing their application, and some remedies devised to address the challenges. The various challenges facing its different synthesis and fabrication methods are also highlighted. First, the different transitional phases of VO2and routes to transform from one stage to the other are presented.

show abstract

“…Spin coating, spray coating, rod coating, and screen printing are top-down physical coating methods, 185 which have the advantages of fast processing and low cost, but the thickness is difficult to control precisely, especially the bonding strength with the substrate may affect the cycling stability. 186 In contrast, bottom-up CVD technology and electrochemical deposition have the advantages of higher coating quality. 187 PEDOT:PSS materials are prone to degradation and failure under high temperature conditions, or in electrochemical reactions.…”

Section: Construction Strategiesmentioning

confidence: 99%

Recent advances in the construction and application of stretchable PEDOT smart electronic membranes

Chen,

Ye,

Cang

et al. 2023

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

Review of self-cleaning TiO2 thin films deposited with spin coating

Cited by 21 publications

References 189 publications

Reconfigurable self-assembly of photocatalytic magnetic microrobots for water purification

Reconfigurable self-assembly of photocatalytic magnetic microrobots for water purification

Fabrication of vanadium dioxide thin films and application of its thermochromic and photochromic nature in self-cleaning: A review

Recent advances in the construction and application of stretchable PEDOT smart electronic membranes

Contact Info

Product

Resources

About