Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Technology Category/ Market
Category – Advance Materials and Manufacturing
Applications –Catalysis, Paints, Diagnostics, Cosmetics Drug Delivery Systems,
Industry– Nanotechnology, Chemicals, Manufacturing, Healthcare
Market -The global microporous and mesoporous materials market size was USD 8,601.7 million in 2021. The market is projected to touch USD 14,930 million by 2028 exhibiting a CAGR of 8.2% during the forecast period.
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Problem Statement
- Semiconductors, particularly titania (TiO2), are crucial for various applications including photocatalysis, gas separation, sensing, and energy conversion
- However, challenges exist in the synthesis of high-quality mesoporous titania. One of the main issues is the uncontrolled Hydrolysis and phase separation, and hence the risk of collapse of the ordered mesopore structure during the removal of the surfactant through calcination.Â
- Further, the synthesis variables affecting the quality of TiO2 materials such as surfactant-precursor interaction, synthesis medium, the ratio of precursor and surfactant, humidity of the environment and pH.
Technology
- The present invention discloses a with anatase and monoclinic phases and  process for the preparation of the same .
- The steps for sysnthesis of highly ordered 2D-hexagonal mesoporous titania (TMP-123) include:
- The said first solution is obtained by dissolving (1.3 g) Pluronic P123 triblock copolymer (12 g) in n-butanol.
- Second solution is obtained by adding drops of 0.026 mol (3.2 g) conc. HCl into 0.014 mol (4.2 g) titanium tetraisopropoxide under vigorous stirring for 30 min
- The resultant clear solution is poured onto Petri dishes with uniform thickness and allowing the solvent to evaporate in a hot oven at 45°C for 7 days during which self-assembly is triggered.
- The formation of organic-inorganic mesostructure takes place with hydrolyses and condensation of inorganic precursor into a mesoporous networkcan be finally calcined
- The as-synthesized sample is calcined at 350°C for 4h in the air at 0.5°C/min to remove the surfactant and obtain highly ordered 2D-hexagonal mesoporous titania, i.e., mesoporous TiO2 (TMP-123).
Key Features/ Value Proposition
Technical Perspective:
- The invention discloses the synthesis, characterization, and photocatalytic properties of highly ordered 2D-hexagonal mesoporous titania, designated as TMP-123, using titanium tetraisopropoxide and non-ionic surfactant Pluronic P123 in n-butanol and acidic medium.
- The resultant clear solution has a Ti(OiPr)4 / HCl / P123 / n-butanol molar ratio of 1 : 1.86 : 0.016 : 9.36.
User Perspective:
- The said material is highly ordered 2D-hexagonal mesoporous titania (TMP-123) with anatase and monoclinic mesoporous TiO2 phases.
- The resultant material exhibits an ordered mesoporous structure with anatase and monoclinic phases having high surface area, narrow pore size distribution, and thick pore walls.
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. P. Selvam
NCCR & Department. of Chemistry
Intellectual Property
- IITM IDF Ref. 1615
- IN395404 – Granted
Technology Readiness Level
TRL-3
Experimental Proof of ConceptÂ