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Task 4.1 Evaluation of the electronic structure of nanomaterials
Task 4.2 Chemical synthesis methods of black titanium oxide nanomaterials
Task 4.3 Characterisation
Task 4.4 Testing of wastewater treatment, photodegradation and mineralization of chemical compounds in wastewater
Task 4.5 Dissemination and Communication
Color changes of TiO2 were obtained by chemical oxidation of TiH2 with H2O2 , targeting a higher photocatalytic activity for pesticides, phenolic compounds, and drug degradation and mineralization under UV and/or solar irradiation.
A simple method to obtain Ti3+ is to oxidize TiH2 with hydrogen peroxide.
Synthesis method:
Step 1 - TiH2, water, and hydrogen peroxide 30% were vigorously stirred for 5 h till it changed to a yellowish gel-like state. The gel was kept for 24 hours at room temperature.
Step 2 - Hydrothermal synthesize for 24h at 160°C and 180°C
Step 3 - After being cooled to room temperature, the blue or light-blue precipitates were collected, washed three times with deionized water and absolute ethanol, centrifugated, and then dried in a vacuum oven at 80oC for 3 hours.
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