One-Pot Route to Produce Hierarchically Porous Titania Thin Films by Controlled Self-Assembly, Swelling, and Phase Separation

2009 ◽  
Vol 21 (13) ◽  
pp. 2763-2769 ◽  
Author(s):  
Luca Malfatti ◽  
Martín G. Bellino ◽  
Plinio Innocenzi ◽  
Galo J. A. A. Soler-Illia
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Self Assembly ◽  
One Pot ◽  
Hierarchically Porous ◽  
Porous Titania

Electrospinning as a Versatile Method of Composite Thin Films Fabrication for Selected Applications

2019 ◽  
Vol 293 ◽  
pp. 35-49 ◽  
Author(s):  
Wiktor Matysiak ◽  
Tomasz Tański ◽  
Weronika Smok
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Physicochemical Properties ◽  
Template Synthesis ◽  
Self Assembly ◽  
Textile Industry ◽  
Separation Method ◽  
Common Method ◽  
High Quality ◽  
Composite Thin Films

Today, one of the most popular nanomaterials are thin nanofibrous layers, which are used in many fields of industry, eg electronics, optics, filtration and the textile industry. They can be produced by various methods, such as drawing, template synthesis, molecular self-assembly or phase separation method, but the most common method is electrospinning from a solution or melts. Electrospinning is gaining more and more interest due to its versatility, simplicity and economy as well as the possibility of producing fibers from various types of polymeric, ceramic and metalic materials. Nanofibrous layers produced by this method are characterized by high quality and the desired physicochemical properties.

One-Pot Preparation and Uranyl Adsorption Properties of Hierarchically Porous Zirconium Titanium Oxide Beads using Phase Separation Processes to Vary Macropore Morphology

Langmuir ◽  
2010 ◽  
Vol 26 (22) ◽  
pp. 17581-17588 ◽  
Author(s):  
Glenna L. Drisko ◽  
Maryline Chee Kimling ◽  
Nicholas Scales ◽  
Andreas Ide ◽  
Erden Sizgek ◽  
...  
Keyword(s):  
Phase Separation ◽  
Titanium Oxide ◽  
Adsorption Properties ◽  
Separation Processes ◽  
One Pot ◽  
Hierarchically Porous

Preparation, characterization, and properties of graphene-based composite aerogels via in situ polymerization and three-dimensional self-assembly from graphene oxide solution

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78538-78547 ◽  
Author(s):  
Haiming Cheng ◽  
Huafei Xue ◽  
Guangdong Zhao ◽  
Changqing Hong ◽  
Xinghong Zhang
Keyword(s):  
Graphene Oxide ◽  
Phase Separation ◽  
Self Assembly ◽  
In Situ Polymerization ◽  
Three Dimensional ◽  
One Pot ◽  
Hierarchical Porous ◽  
Composite Aerogels ◽  
Polymerization Induced Phase Separation

In this work, hierarchical porous graphene-based composite aerogels are synthesized by a simple and facile one-pot polymerization-induced phase separation.

Hierarchically Porous Titania Thin Film Prepared by Controlled Phase Separation and Surfactant Templating

Langmuir ◽  
2011 ◽  
Vol 27 (15) ◽  
pp. 9557-9566 ◽  
Author(s):  
Qing Liu Wu ◽  
Navaladian Subramanian ◽  
Stephen E. Rankin
Keyword(s):  
Thin Film ◽  
Phase Separation ◽  
Hierarchically Porous ◽  
Titania Thin Film ◽  
Surfactant Templating ◽  
Porous Titania

Self-Assembly of Polymer Thin Film on Chemically Patterned Substrate

2007 ◽  
Vol 121-123 ◽  
pp. 469-472 ◽  
Author(s):  
L. Zhang ◽  
Hao Li Zhang ◽  
D.G. Bucknall
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Film Thickness ◽  
Self Assembly ◽  
Microcontact Printing ◽  
Interaction Mechanism ◽  
Polymer Particle ◽  
Thin Polymer Film ◽  
Patterned Substrate ◽  
Chemical Pattern

In this work, we have investigated phase separation behavior in PS/PVP polymer blend thin films on gold substrates that have chemical stripes of different periods made by microcontact printing. The influences of pattern period and film thickness have been studied. The experiments have testified that the best result of phase separation, as shown in OM image, was obtained when the period of the chemical pattern is similar to the polymer particle size. Meanwhile, the film thickness plays a significant role on the phase separation. The best pattern replication in the polymer thin films only occurs in a relative narrow thickness range, for example, in this case between 30 and 60 nm. The possible interaction mechanism of the thin polymer film with the underlayed chemical pattern has been discussed.

Mesoporous Hybrid Thin Films: Building Blocks for Complex Materials with Spatial Organization

2007 ◽  
Vol 1007 ◽  
Author(s):  
Galo J. Soler-Illia ◽  
Paula C. Angelomé ◽  
M. Cecilia Fuertes ◽  
Alejandro Wolosiuk ◽  
Sara A. Bilmes ◽  
...  
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Spatial Organization ◽  
Sol Gel ◽  
Building Blocks ◽  
Film Deposition ◽  
One Pot ◽  
Selective Functionalization ◽  
Hybrid Thin Films ◽  
Sol Gel Synthesis

ABSTRACTMesoporous Hybrid Thin Films (MHTF) of a variety of compositions and embedded organic functions are produced by combining sol-gel synthesis, template self-assembly and surface modification. One-pot or post-grafting strategies permit to modify the pore surface behavior. Highly controlled MHTF issued from a reproducible and modular synthesis can be used as building blocks for more complex structures, presenting order at larger scales, and novel properties derived from this multiscale order. Multilayer stacks of MHTF presenting specific and different functions and frameworks located in a well-defined position have been produced by combining sequential film deposition, selective functionalization and dissolution. These systems present new properties such as localized chemistry or modulable photonic crystal behavior.

The Morphology in Film of Polystyrene-b-Polylactide after Temperature Annealing Process

2015 ◽  
Vol 1095 ◽  
pp. 647-650
Author(s):  
Ting Chen ◽  
Jia Nan Zhang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Separation ◽  
Block Copolymer ◽  
Annealing Time ◽  
Self Assembly ◽  
Annealing Temperature ◽  
Annealing Process ◽  
Temperature Gradients ◽  
Si Substrates

Polystyrene-b-Polylactide (PS-b-PLA) was dissolved in chlorobenzene, and the development of the micro-phase separation morphology in asymmetric PS-b-PLA thin films was investigated by AFM. The thin films were prepared by spinning casting at the speed of 6000 r/min for 60s on Si substrates. We get different morphologies of PS-b-PLA thin film by changing the annealing temperature from 150 °C to 170 °C. In addition, the annealing time influences the morphology of the film. When the annealing time increased from 2 hours to 15 hours and 30 hours, the morphology transformed from parallel to perpendicular to the substrate. By applying temperature gradients, we can control the morphology and orientation of the Block copolymer film self-assembly.

scholarly journals Order of magnitude increase in photocatalytic rate for hierarchically porous anatase thin films synthesized from zinc titanate coatings

2017 ◽  
Vol 46 (6) ◽  
pp. 1975-1985 ◽  
Author(s):  
Nathanya J. Platt ◽  
Karl M. Kaye ◽  
Gregory J. Limburn ◽  
Samuel D. Cosham ◽  
Alexander N. Kulak ◽  
...  
Keyword(s):  
Thin Films ◽  
Fold Increase ◽  
Zinc Titanate ◽  
Hierarchically Porous ◽  
Porous Titania ◽  
Order Of Magnitude ◽  
Titania Films ◽  
Magnitude Increase

Zinc titanate films are converted into porous anatase showing a 12-fold increase in rate compared to non-porous titania films.

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