@article{Nguyen Quang Long_Vinh_2021, title={Preparation of black-TiO2 and its application in photocatalytic removal of methyl orange dye }, url={https://en.jmst.info/index.php/jmst/article/view/347}, DOI={10.54939/1859-1043.j.mst.76.2021.68-73}, abstractNote={<p class="jmsttmttubi2021" style="line-height: 99%;">For a few decades, Titanium Dioxide (TiO<sub>2</sub>) has been the most studied photocatalyst due to its significant optical property. In the paper, TiO<sub>2</sub> pigment powder (Anatase form) was selected as a precursor to prepare a variety of Black-TiO<sub>2</sub> samples, and the typical material was then evaluated for its photocatalytic activity in organic pollutant treatment. Some properties of Black-TiO<sub>2</sub> were determined via common methods such as sensory analysis, X-Ray diffraction, and bandgap measurement obtained from UV-Vis spectroscopy. As a result, the material was successfully converted to more than 40% organic pollutant as Methyl Orange (C<sub>14</sub>H<sub>14</sub>N<sub>3</sub>NaO<sub>3</sub>S) for an hour, as two times higher than that of the amount converted by pristine TiO<sub>2</sub>. In addition, Black-TiO<sub>2</sub> performed much better photocatalytic activity in an acidic medium in comparison with a neutral one, and the material also remained its activity as more than 90% after three time-continuous recycling operations.</p>}, number={76}, journal={Journal of Military Science and Technology}, author={Nguyen Quang Long and Vinh}, year={2021}, month={Dec.}, pages={68–73} }