A High-Performance Polyimide Composite Membrane with Flexible Polyphosphazene Derivatives for Vanadium Redox Flow Battery.

A sulfonated polyimide, S-F-abSPI, with alkyl sulfonic acid side chains, and a polyphosphonitrile derivative, poly[4-methoxyphenoxy (4-fluorophenoxy) phosphazene] (PFMPP), were designed and synthesized. Composite modification of the S-F-abSPI membrane was carried out using PFMPP, resulting in the preparation of composite membranes with different composite ratios, which were then subjected to performance testing and characterization. Experimental results revealed a significant enhancement in the proton conductivity of the S-F-abSPI membrane, reaching 0.

Construction of a heterojunction with fast charge transport channels for photocatalytic hydrogen evolution a synergistic strategy of Co-doping and crystal plane modulation.

Carrier spatial separation efficiency and active electron density are the key factors affecting photocatalytic hydrogen evolution activity. Heterojunction catalysts with fast charge separation and directed electron transport systems were successfully prepared by a synergistic modification strategy of transition metal (Co) doping and crystal plane modulation. The optimized electronic structure and enhanced reaction kinetics enabled unidirectional electron transfer.

Few-layer porous carbon nitride anchoring Co and Ni with charge transfer mechanism for photocatalytic CO reduction.

The low specific surface area and low charge transfer efficiency of conventional graphite carbon nitride (g-CN) are the main obstacles to its application in photocatalytic CO reduction. In this paper, graphite carbon nitride was protonated by phosphoric acid (HPO), and a new few-layer porous carbon nitride was prepared by intercalation polymerization with doping bimetal in the cavity of g-CN. Under visible light irradiation, the CO formation rate of Co/Ni co-doped g-CN can reach 13.

A MXene-based multiple catalyst for highly efficient photocatalytic removal of nitrate.

Photocatalytic removal of nitrate in wastewater has attracted wide attention because of its simple operation and environmental protection. However, the preparation of photocatalysts with high efficiency and high nitrogen selectivity is still a challenge. In this paper, TiO is grown in situ on TiC MXene by a simple calcination method and modified with silver particles.

Site-1 protease-derived soluble (pro)renin receptor targets vasopressin receptor 2 to enhance urine concentrating capability.

The antidiuretic hormone vasopressin (AVP), acting through its type 2 receptor (V2R) in the collecting duct (CD), critically controls urine concentrating capability. Here, we report that site-1 protease-derived (S1P-derived) soluble (pro)renin receptor (sPRR) participates in regulation of fluid homeostasis via targeting V2R. In cultured inner medullary collecting duct (IMCD) cells, AVP-induced V2R expression was blunted by a PRR antagonist, PRO20; a PRR-neutralizing antibody; or a S1P inhibitor, PF-429242.