1. Revealing the Impact of Alkaline Agents on the Photocatalytic Characteristics of Black Titanium Dioxide (TiO2)
- Author
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Khan, Muhammad Danish, Farooq, Masood ul Hassan, Fareed, Iqra, Ali, Zulfiqar, Anum, Hafiza Sadia, Sandali, Yahya, Tahir, Muhammad Bilal, and Butt, Faheem K.
- Abstract
Black TiO2owing to its fascinating photocatalytic properties has attracted research interest all around the world. Herein, the template-free hydrothermal method has been used to prepare black-TiO2using different alkaline reagents (NaOH, NH4OH, LiOH, and KOH) to study their effect on the physiochemical properties. XRD, Raman spectroscopy, FESEM, EDX, UV–vis DRS, and PL investigations were carried out and comparatively discussed. The as-prepared black TiO2has been subjected to photocatalytic degradation of methylene blue (MB) under visible light irradiation. Black TiO2prepared from NH4OH displayed superior MB removal compared to others. The exceptional photocatalytic performance is attributed to its smaller band gap and enhanced porosity of the material. Meanwhile, black TiO2prepared from KOH exhibited the least photocatalytic degradation capability due to abundant oxygen vacancies. Furthermore, the proposed mechanism highlights the effect of chemical reagents on the physiochemical properties of black TiO2and describes the cause of poor photocatalytic behavior of KOH-based black TiO2compared to others.
- Published
- 2024
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