Hastuti, Lathifah Puji and Kusumaatmaja, Ahmad and Darmawan, Adi and Kartini, Indriana (2023) Photocatalytic membrane of TiO 2 /CNT decorated PAN nanofibers with enhanced performance under LED visible-light irradiation. Photocatalytic membrane of TiO2/CNT decorated PAN nanofibers with enhanced performance under LED visible-light irradiation, 34 (7). pp. 2364-2385. ISSN 0958305X
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Abstract
Incorporating TiO 2 with CNTs and PAN nanofiber structures results in a photocatalytic membrane composite with an attractive response in the visible region. It offers an efficient process without post-treatment separation at the end of the photocatalytic treatment. The composite membranes were fabricated using electrospinning at 7 kV with 10 cm in the distance between needle tip and collector at a flow rate of 1 mL h ⁻¹ . Polyacrylonitrile (PAN) was used as the polymer matrix. All the as-spun composites exhibited randomly oriented nanofibers. CNT increased the fiber diameters from 324 to 463 nm. The bandgap of TiO 2 also shifted from 3.15 to 2.76 eV at the narrowest The color removal kinetics follow the Langmuir-Hinshelwood pseudo-first-order kinetics model with the highest rate constant of 0.0225 min ⁻¹ shown by PAN/TiO 2 /CNT 20%. More than 95% color removal of methylene blue after 100 min irradiation has been achieved using LED lamps of low energy visible light (43.5 W). Such a result is supposed to be the highest employing low energy lamps. [Formula: see text]
Item Type: | Article |
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Additional Information: | Library Dosen |
Uncontrolled Keywords: | Photocatalytic Membrane;TiO2; CNT; Nanofibers; Visible-light |
Subjects: | Q Science > QD Chemistry |
Divisions: | Faculty of Mathematics and Natural Sciences > Chemistry Department |
Depositing User: | Wiyarsih Wiyarsih |
Date Deposited: | 19 Jun 2024 06:28 |
Last Modified: | 19 Jun 2024 06:28 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/2557 |