A novel CeO2 nanorod/g-C3N4/N-rGO ternary composite was synthesized using a simple ultrasonic-heat treatment method for application in the photocatalytic degradation of organic pollutants under the irradiation of visible light. This material shows superior photocatalytic activity compared with pure g-C3N4 and CeO2 nanorods, and the photodegradation rate of RhB is up to 2.1-fold higher than that...

Supported platinum catalysts are used in the automotive industry for the oxidation of CO, hydrocarbons, and NOx. Dispersed Pt provides active sites for these reactions to occur. During the use of these catalyst, high temperatures will cause Pt to become volatile and sinter, forming large particles which will lead to a loss of catalytic activity. The study of Pt sintering has been of high priori...

An electrochemical sensor incorporating a signal enhancement for the determination of lead (II) ions (Pb2+) was designed on the basis of the thrombin-binding aptamer (TBA) as a molecular recognition element and ionic liquid supported cerium oxide (CeO2) nanoparticles-carbon nanotubes composite modification. The composite comprises nanoparticles CeO2, multi-wall carbon nanotubes (MWNTs) and hydr...

New information about the active sites for the water gas shift (WGS) reaction over Cu-CeO2 systems was obtained using in-situ, time-resolved X-ray diffraction (TR-XRD), X-ray absorption spectroscopy (TR-XAS, Cu K and Ce L3 edges), and infrared spectroscopy (DRIFTS). Cu-CeO2 nanoparticles prepared by a novel reversed microemulsion method (doped Ce1-xCuxO2 sample) and an impregnation method (impr...

Dissipative particle dynamics (DPD) was carried out to study the nucleation and crystal growth process of CeO2 nanoparticles in different alcohol aqueous solutions. The results showed that the nucleation and crystal growth process of CeO2 can be classified into three stages: nuclei growth, crystal stabilization and crystal aggregation except the initial induction stage, which could be reproduce...

Nickel-doped cerium dioxide nanoparticles exhibit room temperature ferromagnetism due to high oxygen mobility within the doped CeO2 lattice. CeO2 is an excellent doping matrix as it can lose oxygen whilst retaining its structure. This leads to increased oxygen mobility within the fluorite CeO2 lattice, leading to the formation of Ce3+ and Ce4+ species and hence doped ceria shows a high propensi...

Nowadays engineered nanomaterials (ENM) are widely used in different customer products that lead to their released into the environment. The ENM behavior in aquatic system is influenced by many factors including water chemistry, presence of natural colloids, biota etc. Despite intensive research conducted in this area the fate of ENM in aquatic system isn’t clearly understood that poses the thr...

With the fast development of nanotechnology, the nanomaterials start to cause people's attention for potential toxic effect. In this paper, the cytotoxicity and oxidative stress caused by 20-nm cerium oxide (CeO2) nanoparticles in cultured human lung cancer cells was investigated. The sulforhodamine B method was employed to assess cell viability after exposure to 3.5, 10.5, and 23.3 microg/ml o...

The oxygen evolution reaction (OER) is a crucial half-reaction in water splitting. However, this kinetically sluggish owing to the four-electron (4 e−) transfer process. Therefore, development of low-cost, stable, highly efficient, and earth-abundant electrocatalysts for OER desirable. Metal oxides derived from metal–organic frameworks (MOFs) are among most efficient OER. Herein, Ce–MOF-derived...