Electronic Metal-Support Interactions Boost *OOH Intermediate Generation in Cu/InSe for Electrochemical HO Production.

Two-electron oxygen reduction reaction (2e ORR) is a promising method for the synthesis of hydrogen peroxide (HO). However, high energy barriers for the generation of key *OOH intermediates hinder the process of 2e ORR. Herein, we prepared a copper-supported indium selenide catalyst (Cu/InSe) to enhance the selectivity and yield of 2e ORR by employing an electronic metal-support interactions (EMSIs) strategy.

The strong metal-support interactions induced electrocatalytic three-electron oxygen reduction to hydroxyl radicals for water treatment.

As a promising environmental remediation technology, the electro-Fenton (EF) process is mainly limited by the two rate-limiting steps, which are HO generation and activation. The electrocatalytic three-electron oxygen reduction reaction (3e ORR) can directly activate oxygen to hydroxyl radicals (•OH), which is expected to break through the rate-limiting steps of the EF process. However, limited success has been achieved in the design of 3e ORR electrocatalysts.

Investigation on the reaction kinetic mechanism of polydopamine-loaded copper as dual-functional catalyst in heterogeneous electro-Fenton process.

Heterogeneous electro-Fenton (HEF) process has been regarded as a promising method in environmental remediation. However, the reaction kinetic mechanism of the HEF catalyst for simultaneous production and activation of HO remained confounded. Herein, the copper supported on polydopamine (Cu/C) was synthesized by a facile method and employed as a bifunctional HEFcatalyst, and the catalytic kinetic pathways were deeply investigated by using rotating ring-disk electrode (RRDE) voltammetry based on the Damjanovic model.

Pauling-type adsorption of O induced electrocatalytic singlet oxygen production on N-CuO for organic pollutants degradation.

Due to environmentally friendly operation and on-site productivity, electrocatalytic singlet oxygen (O) production via O gas is of immense interest in environment purification. However, the side-on configuration of O on the catalysts surface will lead to the formation of HO, which seriously limits the selectivity and activity of O production. Herein, we show a robust N-doped CuO (N-CuO) with Pauling-type (end-on) adsorption of O at the N-Cu-O sites for the selective generation of O under direct-current electric field.

High-efficiency photocatalytic degradation of rhodamine 6G by organic semiconductor tetrathiafulvalene in weak acid-base environment.

Tetrathiafulvalene (TTF) was successfully applied to degrade rhodamine 6G (Rh6G) in photocatalytic system. The results exhibited that TTF had excellent suitability in the range of weak acid to weak base (pH = 5-9). Multiple reactive oxygen species (˙OH, O, HO and ˙O) as well as h and e were generated in photocatalytic process, causing the rapid degradation of Rh6G.

Enhanced electron transfer and hydrogen peroxide activation capacity with N, P-codoped carbon encapsulated CeO in heterogeneous electro-Fenton process.

Designing catalysts that can effectively activate oxygen and hydrogen peroxide is a huge challenge in electro-Fenton (EF) process. Considering the superior ability of electrons transport and activation of HO, ceria encapsulated with N, P-codoped carbon material was a promising catalyst for EF reaction. Herein, CeO-NPC (where T and X represented the calcination temperature and the initial mass of CeO, respectively) materials were synthesized via pyrolysis process and used as catalysts to degrade ciprofloxacin (CIP) in EF process.

Photo-electro-Fenton-like process for rapid ciprofloxacin removal: The indispensable role of polyvalent manganese in Fe-free system.

The residual ciprofloxacin (CIP) in water seriously menaces the ecological safety and public health. Here, a Fe-free photo-electro-Fenton-like (PEF) system was designed for efficient degradation of CIP in water. A Z-scheme MnO/g-CN (MCN) nanocomposite with low-cost, large specific surface area and abundant active sites was successfully synthesized as a photoelectric catalyst.

Reconstruction of a Transplant Recipient's External Iliac Artery Using Donor's Inferior Vena Cava in Renal Transplantation: 2 Case Reports.

Iliac atherosclerosis is common in renal transplant recipients. In severe cases, it affects intraoperative renal arterial anastomosis and increases the risk of postanastomosis complications. At present, safe and efficient vascular replacement methods are relatively limited.

Identification of Kidney Transplant Recipients with Coronavirus Disease 2019.

Coronavirus disease 2019 (COVID-19) is a novel and lethal infectious disease, posing a threat to global health security. The number of cases has increased rapidly, but no data concerning kidney transplant (KTx) recipients infected with COVID-19 are available. To present the epidemiological, clinical, and therapeutic characteristics of KTx recipients infected with COVID-19, we report on a case series of five patients who were confirmed as having COVID-19 through nucleic acid testing (NAT) from January 1, 2020 to February 28, 2020.

Highly Efficient Degradation of Polyacrylamide by an Fe-Doped CeZrO Solid Solution/CF Composite Cathode in a Heterogeneous Electro-Fenton Process.

Polyacrylamide (PAM) in environmental water has become a major problem in water pollution management due to its high molecular mass, corrosion resistance, high viscosity, and nonabsorption by soil. The composite of Fe-doped CeZrO solid solution (Fe-CeZrO) loaded on carbon felt (CF) was fabricated by a hydrothermal synthesis method, which was used as the cathode in a heterogeneous electro-Fenton system for the degradation of PAM. It showed that the degradation efficiency of PAM by the Fe-CeZrO/CF cathode was 86% after 120 min and the molecular mass of PAM decreased by more than 90% after 300 min.