Investigation of the photocatalytic efficiency of tantalum alkoxy carboxylate-derived Ta₂O₅ nanoparticles in rhodamine B removal

Abstract

Ta2O5 nanoparticles have been synthesized from alkoxy carboxylates of tantalum via the sol–gel route. Tantalum alkoxides were reacted with chlorocarboxylic acids in order to lower the susceptibility hydrolysis. When these modified alkoxy carboxylates were used in the sol–gel synthesis, they yielded Ta2O5 nanoparticles of better properties than those of the alkoxide-derived Ta2O5 nanoparticles. These nanoparticles efficiently removed rhodamine B under UV light irradiation.

Synthesis and Visible-Light-Driven Photocatalytic Activity of Ta4+ Self-Doped Gray Ta2O5 Nanoparticles

“…Actually, only few works could be found in the literature discussing the use of pure (or doped) Ta 2 O 5 as photocatalyst for photodegradation of RhB dye. ,,− Table S4 presents a summary of these works. As it can be seen, several authors do not mention the radiometric or photometric characteristic (W m –2 , lm m –2 , etc.)…”

Nanosized metal–organic frameworks as unique platforms for bioapplications

“…NMOFs represent a new promising category of NPs for biomedical imaging, as their unique chemical features and versatility enable their use in various imaging modalities such as MR (magnetic resonance), CT (computed tomography) and PET (positron emission tomography), among others. 108,[127][128][129] MR imaging is one of the main techniques used for diagnosis, as it can provide morphological and functional information besides being a non-invasive technique. 127 However, it requires the use of contrast agents due to the low contrast-to-noise ratio, which implies a considerable reduction in the resolution.…”

“…NMOFs represent a new promising category of NPs for biomedical imaging, as their unique chemical features and versatility enable their use in various imaging modalities such as MR (magnetic resonance), CT (computed tomography) and PET (positron emission tomography), among others. 108,127–129…”

Visible Light-Driven Mn-MoS2/rGO Composite Photocatalysts for the Photocatalytic Degradation of Rhodamine B

“…As promising photocatalysts, oxide semiconductors, such as TiO 2 [3], ZnO [4], WO 3 [5], and Ta 2 O 5 [6], have been widely investigated. However, their optical absorption in the visible light region is hindered by their broad band gap, preventing them from employing in the photocatalytic water treatment process.…”