Facile synthesis of CeO₂ nanoparticle sensitized CdS nanorod photocatalyst with improved visible-light photocatalytic degradation of rhodamine B

Abstract

A heterostructure photocatalyst consisting of one-dimensional (1D) CdS nanorods (NRs) and cerium dioxide (CeO2) nanoparticles (NPs) was successfully synthesized via a solvothermal method.

Synthesis of ZnTiO3@TiO2 Heterostructure Nanomaterial as a Visible light Photocatalyst

“…However, it was decreased significantly when the IPA was introduced. This confirms that the hydroxyl radicals are the main active species for the photocatalytic degradation of Congo red …”

Synthesis of core-shell structured CdS@CeO 2 and CdS@TiO 2 composites and comparison of their photocatalytic activities for the selective oxidation of benzyl alcohol to benzaldehyde

“…Here, benzoquinone (BQ) was introduced as scavenger for • O 2 − , AgNO 3 for e − , EDTA for h + , and tertiary butanol (TBA) for • OH in the solution [22,26,[28][29][30][31].…”

“…Lee et al found that the H 2 evolution rate over core-shell structured CdS@TiO 2 increased nearly 6 times compared with bulk CdS [24]. Alternatively, CeO 2 is also a suitable coupler used to improve the photocatalytic activity of CdS because the redox couple Ce 4+ /Ce 3+ in CeO 2 can effectively separate the photogenerated electrons and holes [25,26]. For example, Tang's group found that the conversion rate of nitroaromatics over CdS@CeO 2 nanowires was more than twice as much as that of blank CdS nanowires under visible light irradiation [25].…”

“…For example, Tang's group found that the conversion rate of nitroaromatics over CdS@CeO 2 nanowires was more than twice as much as that of blank CdS nanowires under visible light irradiation [25]. Yuan et al disclosed that the degradation of Rhodamine B over CdS@CeO 2 nanorods was improved ∼50% than that over CdS nanorods [26]. Although the previous studies have confirmed that both TiO 2 and CeO 2 shell layer can improve the photocatalytic activity of CdS core, the effects of TiO 2 and CeO 2 shell layer on the photocatalytic activity have never been systematically compared.…”

Structural Features and HER activity of Cadmium Phosphohalides

“…[11] Such aremarkable HER activity without any co-catalyst suggests ah igh mobility and low recombination rate of charge carriers in these compounds. [13] Among the Cd 2 P 3 Xc ompounds,C d 2 P 3 Cl exhibits as ignificantly higher activity than Cd 2 P 3 Br and Cd 2 P 3 I( Figure S17). Cd 7 P 4 Cl 6 and Cd 4 P 2 Cl 3 exhibit significantly higher HER activity than the CdS-and TiO 2based photocatalysts under visible-light irradiation.…”