Flexible self-standing amidoxime-functionalized MXene membrane for electrochemical uranium extraction.

The presence of radioactive U(VI) ions in sewage poses a significant threat to both the ecological environment and human health. In recent years, an electricity-driven remediation strategy has emerged as aprominent technique for the elimination of radionuclides. Specifically, the square wave transformation method is an emerging technology for electrochemical separation and enrichment of uranium.

TiCT/CdZnS composites constructed of Schottky heterojunction for efficient photocatalytic reduction of U(VI).

Photocatalysis has emerged as a extremely promising green technology for the treatment of uranium-containing wastewater. This study focuses on the fabrication of TiCT/CdZnS composites with Schottky junctions through the in-situ growth of CdZnS on TiCT nanosheets, enabling efficient photoreduction of U(VI) without the requirement of sacrificial agents. The results demonstrate that the TiCT/CdZnS composites achieve remarkable 99.

D-π-A array structure of BiTiO-triazine-aldehyde group benzene skeleton for enhanced photocatalytic uranium (VI) reduction.

Photocatalytic reduction of U to U can help remove U from the environment and thus reduce the harmful impacts of radiation emitted by uranium isotopes. Herein, we first synthesized BiTiO (B1) particles, then B1 was crosslinked with 6-chloro-1,3,5-triazine-diamine (DCT) to afford B2. Finally, B3 was formed using B2 and 4-formylbenzaldehyde (BA-CHO) to investigate the utility of the D-π-A array structure for photocatalytic U removal from rare earth tailings wastewater.

Biomimetic Photocatalytic System Designed by Spatially Separated Cocatalysts on Z-scheme Heterojunction with Identified Charge-transfer Processes for Boosting Removal of U(VI).

Designing highly efficient photocatalysts with rapid migration of photogenerated charges and surface reaction kinetics for the photocatalytic removal of uranium (U(VI)) from uranium mine wastewater remains a significant challenge. Inspired by natural photosynthesis, a biomimetic photocatalytic system is assembled by designing a novel hollow nanosphere MnO @TiO @CdS@Au (MTCA) with loading MnO and Au nano particles (Au NPs) cocatalysts on the inner and outer surfaces of the TiO @CdS. The spatially separated cocatalysts efficiently drive the photogenerated charges to migrate in opposite directions, while the Z-scheme heterogeneous shell further separates the interfacial charges.

Realizing All-Climate Li-S Batteries by Using a Porous Sub-Nano Aromatic Framework.

Lithium-sulfur (Li-S) batteries with high energy density are currently receiving enormous attention. However, their redox kinetics at low temperature is extremely tardy, and polysulfides shuttling is serious at high temperature, which severely hinders the implementation of wide-temperature Li-S batteries. Herein, we propose an all-climate Li-S battery based on an ether-based electrolyte by using a porous sub-nano aromatic framework (SAF) modified separator.

Two quinoline-based two-photon fluorescent probes for imaging of viscosity in subcellular organelles of living HeLa cells.

Two viscosity-sensitive two-photon fluorescent probes (QL and QLS) were designed and synthesized, which can be localized in lysosome and mitochondria in living HeLa cells, respectively. As the increases of viscosity from 2.55 to 1150 cP, the fluorescence quantum yield (Φ) of QL and QLS was increased by 28-fold and 37-fold, respectively.

Enhanced Photocurrent via π-Bridge Extension of Perylenemonoimide-Based Dyes for p-Type Dye-Sensitized Solar Cells and Photoelectrochemical Cells.

Two dyes and containing triphenylamine as the donor and perylenemonoimide as the acceptor, with and without bithiophene as π-bridge, respectively, were successfully prepared and characterized for p-type dye-sensitized solar cells (p-DSSCs) and dye-sensitized photoelectrochemical cells (DS-PECs). As a result, with bithiophene π-bridge exhibited a broader absorption spectrum and a higher molar extinction coefficient than . Furthermore, the photocurrents of p-DSSCs and DS-PECs for the dye were increased by 26.

A self-assembled perylene diimide nanobelt for efficient visible-light-driven photocatalytic H evolution.

In this communication, a self-assembled supramolecular system consisting of phosphoric acid substituted perylene diimide (P-PMPDI) has been successfully developed for highly efficient photocatalytic hydrogen evolution. Compared with a carboxylic substituent perylene diimide (P-CMPDI), P-PMPDI showed a superior H2 evolution reaction rate of 11.7 mmol g-1 h-1 and a recorded apparent quantum yield (AQY) of 2.

Targetable N-annulated perylene-based colorimetric and ratiometric near-infrared fluorescent probes for the selective detection of hydrogen sulfide in mitochondria, lysosomes, and serum.

Hydrogen sulfide (HS) serves an effective role in biological systems as the acknowledged third endogenous gasotransmitter, so it makes great sense to detect and analyze HS sensitively and quantitatively in subcellular environments, such as in mitochondria and lysosomes where HS is widespread and functions as the mediator. Considering the excellent photophysical properties and multiple modification sites, N-annulated perylene (NP) was firstly chosen as the fluorophore to design a series of colorimetric and ratiometric near-infrared (NIR) fluorescent probes for the sensitive and selective detection of HS. The probes showed near-infrared fluorescence at 681 nm in the absence of HS.

Enhanced Photocurrent Density by Spin-Coated NiO Photocathodes for N-Annulated Perylene-Based p-Type Dye-Sensitized Solar Cells.

The low photocurrent density of p-type dye-sensitized solar cells (p-DSSCs) has limited the development of high-efficiency tandem cells due to the inadequate light-harvesting ability of sensitizers and the low hole mobility of semiconductors. Hereby, two new "push-pull" type organic dyes (PQ-1 and PQ-2) containing N-annulated perylene as electron donor have been synthesized, where the PQ-2-based p-DSSCs show higher photoelectric conversion efficiency (PCE) of 0.316% owing to the higher molar extinction compared to of that PQ-1.