Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

CTAB-Templated Synthesis of Nanocrystalline Ordered Mesoporous Titania (TMC-016)

Technology Category/Market

Category: Chemistry & Chemical Analysis, Advanced Material & Manufacturing

Application: purification of air and water, H2O splitting, CO2 reduction, photocatalytic

Industry: Advanced Material, Catalyst, Photocatalyst, Chemical Manufacturing

Market: The global market size of titanium in 2022 amounted to $ 28.59 B. As of June 2023, the market value of titanium was projected to grow to nearly $ 31 B. The titanium market size is forecast to grow to nearly $ 52 B in yrs 2023-2030.


Problem Statement

  • Titania (TiO2) has superior physic-chemical properties, making it structural stabile, non-toxic, highly photocatalytic active and of low cost.
  • To Improve catalytic properties of TiO2 different morphologies, generation of defects with various synthetic strategies.
  • Therefore it is important to study ordered mesoporous titania (OMT) materials which is difficult to synthesize due to the high electrophilicity of Ti4+ ion making uncontrolled hydrolysis-condensation and phase separation between surfactant template and precursor, resulting in rapid dense phase disordered materials formation.
  • Based on the foregoing a need therefore exists for an improved process to synthesize an advanced material that addresses above mentioned issues.


  • The present patent proposes an improved process for synthesis of ordered 2D-hexagonal mesoporous titania using cationic surfactant  cetyltrimethylammonium bromide (CTAB), structure directing template Titania (TMC-016).

    Refer FIG 1 and FIG. 2 with respect to Table 1


The method comprises of the following steps:

  • Preparing a first solution (Solution A) was prepared by dissolving 0.896 mmol (326 mg) CTAB in 0.162 mo/ (12 g) n-butanol to obtain homogenous solution;
  • Preparing a second solution (Solution-B) by dropwise addition of 0.0324 mol (3.2 g) conc. HCl into 0.0147 mol (4.2 g) titanium (IV) tetra-isopropoxide under 30 min vigorous stirring
  • Adding Solution-A dropwise into Solution-B under uniform stirring at room temperature and further stirred for 6 h to get a clear, homogenous solution;
  • Pouring resulting clear solution into Petri-dishes with uniform thickness and evaporating it in hot oven at 45°C for 7 days to trigger self-assembly;
  • Forming organic-inorganic mesostructure with hydrolysis and condensation of the inorganic precursor into a periodic mesoporous network;
  • Calcinating the synthesized resultant sample at 350°C for 4 h in air at heating rate of 0.5°C/min to obtain 2D-hexagonal ordered mesoporous TiO2 (TMC-016).

Key Features/Value Proposition

User Prospective:

  • High Surface Area
  • High Thermal Stability
  • Tenable/Narrow Pore Diameter
  • Active Phase Composition
  • Thick Pore Walls
  • Prevents mesostructure collapsing on surfactant removal.
  • Cost efficient & Non-toxic

Industrial Prospective:

  • TMC-016 is systematically characterized to study the photocatalytic activity of material to degrade 4-chlorophenol.
  • The molar ratio in resultant solution Ti(OiPr)4/HCI/CTAB/n-butanol was 1:2:204:0.0609:11.020.
  • The preparation of TMC-016 takes place via evaporation induced self-assembly (EISA) method.
  • The ordered structure has higher hydrophobicity than ethanol.
  • It effectively prevents nucleophile attack (H2O) on Ti4+.
  • It controls phase separation between surfactant and titania precursor.
Questions about this Technology?

Contact for Licensing

Research Lab

Prof. Selvam P

NCCR & Department of Chemistry

Intellectual Property

  • IITM IDF Number: 1805
  • IP Patent Number: 369497 (Granted)

Technology Readiness Level

TRL – 4

Technology validation in Lab

error: Content is protected !!