Titanium-organic framework photocatalyst for adsorption and decomposition of volatile organic compound, manufacturing method thereof and method for removing volatile organic compound using titanium-organic framework

A method for preparing a titanium-organic framework photocatalyst for adsorption and decomposition of a volatile organic compound, comprising:

• a step of preparing a mixture solution by mixing a first carboxylic acid compound and a second carboxylic acid compound in an organic solvent;
• a step of preparing a reactant by mixing a titanium precursor in the mixture solution;
• and
• a step of preparing a titanium-organic framework photocatalyst by reacting the reactant at 130-180° C. for 18-30 hours,
• wherein the first carboxylic acid compound and the second carboxylic acid compound are mixed at a molar ratio of 2:1-1:2 in the mixture solution;
• wherein:
• the organic solvent is N,N-dimethylformamide (DMF)
• the first carboxylic acid compound is amino-1,4-benzenedicarboxylic acid,
• the second carboxylic acid compound is 1,4-benzenedicarboxylic acid,
• the titanium precursor is titanium isopropoxide,
• the titanium is comprised in an amount of 26-28 wt % based on 100 wt % of the titanium-organic framework photocatalyst,
• the titanium-organic framework photocatalyst has a hierarchical pore structure with an average pore size of 5-10 nm and a Brunauer-Emmett-Teller specific surface area of 610-623 m2/g,
• the titanium-organic framework photocatalyst has a polyhedral shape with (001), (110) and (111) crystal planes and an average particle size of 0.6-0.7 μm,
• the titanium-organic framework photocatalyst exhibits a C═O peak (P1) and a O—H peak (P2) at 531.5-532 eV and 533-534 eV upon X-ray photoelectron spectroscopy (XPS), and
• the titanium-organic framework photocatalyst has a bandgap energy of 2.33-2.40 eV.