A cerium vanadate interconnected with a carbon nanofiber heterostructure for electrochemical determination of the prostate cancer drug nilutamide

Binary transition metal oxides (BTMOs) possess higher reversible capacity, better structural stability and electronic conductivity, and have been widely studied to be novel electrode materials for supercapacitors. Binary transition metal oxides (BTMOs) possess higher reversible capacity, better structural stability and electronic conductivity, and have been widely studied to be novel electrode materials for supercapacitors. In this review, we present an extensive description of BTMO materials and the most commonly used synthetic methods. Furthermore, we review several notable BTMOs and their composites in application of supercapacitors. With the increasing attention for energy storage, more and more exciting results about BTMO materials will be reported in the future.

A novel CeO 2 nanorod/g-C 3 N 4 /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. A novel CeO 2 nanorod/g-C 3 N 4 /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-C 3 N 4 and CeO 2 nanorods, and the photodegradation rate of RhB is up to 2.1-fold higher than that of the g-C 3 N 4 /N-rGO (at the optimum content of 0.25 wt% N-rGO) catalyst when the content of CeO 2 nanorods was 2 wt%. The enhancement of photocatalytic activity could be attributed to the synergistic effect among CeO 2 , g-C 3 N 4 and N-rGO (serves as a conductive network), which was found to lead to more efficient separation of photogenerated electron–hole pairs, resulting in the effective photodegradation of organic pollutants. In addition, superoxide radical anions (˙O 2 − ) and holes (h + ) were considered as the main reactive species during the photodegradation process, and the ternary composite also exhibited preferable stability for the decomposition of RhB. This work provides an in-depth perspective for understanding the N-doped graphene-involved photocatalytic mechanism.