Trace Amounts of Co3O4 Nano-Particles Modified TiO2 Nanorod Arrays for Boosted Photoelectrocatalytic Removal of Organic Pollutants in Water

Abstract

Trace amounts of Co3O4 modified TiO2 nanorod arrays were successfully fabricated through the photochemical deposition method without adding any nocuous reagents. The Co3O4/TiO2 nanorod arrays fabricated in acid solution had the highest photo-electrochemical activity. We elaborated on the mechanism of Co3O4-TiO2 fabricated in different pH value solutions. The Co3O4-TiO2 had a more remarkable photo-electrochemical performance than the pure TiO2 nanorod arrays owing to the heterojunction between Co3O4 and TiO2. The degradation of methylene blue and hydroquinone was selected as the model reactions to evaluate the photo-electrochemical performance of Co3O4-TiO2 nanorod arrays. The Co3O4/TiO2 nanorod arrays had great potential in waste water treatment.

UV Aydınlatma Altında Gelişmiş Fotokatalitik Performans için Fotokatalitik Biriktirme ile Hazırlanan Cu Nanokümelerle Süslenmiş Sütunlu TiO2 İnce Filmler

“…Figure 6a shows the peak positions of the Ti 2p1/2 and the Ti 2p3/2 peak on the binding energy (BE) scale that can be extracted. The Ti 2p1/2 and the Ti 2p3/2 positions are found to be at 464.1 eV and 458.4 eV respectively (Du et al, 2021). The difference in the binding energy (5.7 eV) can be ascribed to Ti 4+ which indicates TiO2 (Sánchez-Zambrano et al, 2022).…”

MIL-125(Ti)@ZIF-67-derived MIL-125(Ti)@TiO2 hollow nanodiscs decorated with Co3S4 for remarkable photocatalytic CO2 reduction

“…30,31 Additionally, MOF-derived heterostructured hybrids may accelerate photo-generated charge transfer and separation via heterointerface to increase activity and stability when the energy band topologies of the two components are well matched. 32,33 As a consequence, the application of MOF derivatives in environmental energy catalysis is widespread.…”

Nanocomposites: Nanoscience and Nanotechnology (Nanoscale Phenomena) in Advanced Composites

“…This is with regard to any material property of the nanocomposites, be it related to crystallographic and/or electronic structure. In line with this theme, eight representative articles [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ] have been published in this Special Issue:…”

“…Importantly, in the context of green research, Du et al [ 3 ] successfully fabricated Co 3 O 4 –modified TiO 2 nanorod arrays using green photochemical deposition methods without adding any toxic reagents. The Co 3 O 4 –TiO 2 nanorod arrays fabricated in acid solution had the highest photo-electrochemical activity.…”