About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Nanofiber-Based Metastable TiO2 Phases for Efficient, Standalone Visible-Light Photocatalyst |
| Author(s) |
Mohammad Mahafuzur Rahaman, Fateh Mikaeili, Pelagia-Irene (Perena) Gouma |
| On-Site Speaker (Planned) |
Mohammad Mahafuzur Rahaman |
| Abstract Scope |
This study presents stabilization of metastable phases of self-supported nanofibrous TiO2 nanomats at RT via blend electrospinning and it’s enhanced photocatalytic performance. Initially, a crystallographic transformation route is designed to achieve pure anatase nanofibrous TiO2 nanomats by controlling O2 environment during sol-preparation. Later, mixture of anatase and brookite phases is stabilized in nanofibrous titania by Cu doping. The Cu-doped TiO2 nanofibrous mat exhibits enhanced photocatalytic activity by narrowing the bandgap and improving charge separation. The brookite phase reduces electron-hole recombination, boosting efficiency. Characterization techniques like cyclic voltammetry and chronoamperometry showed strong visible-light-induced photocurrent. These Cu-doped TiO2 nanogrids outperform P25 Degussa, functioning under natural sunlight without filtration. Their self-supported structure retains the benefits of nanomaterials while avoiding typical drawbacks, making them ideal for environmental and energy-related photocatalysis. This work provides key insights into the design of efficient, sustainable photocatalysts. |