Electron Tandem Transport Channel in a CuP/Sv-ZnInS p-n Heterojunction for Photothermal-Photocatalytic Benzyl Alcohol Oxidation and H Production.

The development of photocatalytic systems with an electron tandem transport channel represents a promising avenue for improving the utilization of photogenerated electrons and holes despite encountering significant challenges. In this study, ZnInS (Sv-ZIS) with sulfur vacancies was fabricated using a solvothermal technique to create defect energy levels. Subsequently, CuP nanoparticles were coupled onto the surface of Sv-ZIS, forming a CuP/Sv-ZIS p-n heterojunction with an electron tandem transport channel.

Ultrafine Iridium Nanoparticles Anchored on Co-Based Metal-Organic Framework Nanosheets for Robust Hydrogen Evolution in Alkaline Media.

A highly promising electrocatalyst has been designed and prepared for the hydrogen evolution reaction (HER). This involves incorporating well-dispersed Ir nanoparticles into a cobalt-based metal-organic framework known as Co-BPDC [Co(bpdc)(HO), BPDC: 4,4'-biphenyldicarboxylic acid]. Ir@Co-BPDC demonstrates exceptional HER activity in alkaline media, surpassing both commercial Pt/C and recent noble-metal catalysts.

Efficient structure tuning over the defective modulated zirconium metal organic framework with active coordinate surface for photocatalyst CO reduction.

Structure engineering of zirconium-based metal organic frameworks (MOFs) aims to develop efficient catalysts for transforming intermittent renewable energy into value-added chemical fuels. In order to have a deeper understanding of industrial scaling, it is vital to ascertain the favourable operational parameters that are necessary for projecting at the atomic level. The proposed paradigm provides a robust basis for the efficient design of MOFs based heterogeneous photocatalysts.

Boosting photocatalytic synchronous production of H coupled with acetone over Co doped CuP quantum dots/ZnInS nanosheets p-n nanojunction.

Photocatalysis provides a new way for synchronous H production and organic synthesis at normal temperature and pressure, usually, water and organic substrate function as sources of hydrogen protons and organic products, which are complex and limited by two half-reactions. Employing alcohols as reaction substrates to simultaneously produce H and valuable organics in a redox cycle is worthy studying, to which catalyst design at atomic level holds the key. In this paper, Co elements doped CuP (CoCuP) quantum dots (QDs) are prepared and coupled with ZnInS (ZIS) nanosheets to form a 0D/2D p-n nanojunction which can effectively boost aliphatic and aromatic alcohols activation to simultaneously produce H and corresponding ketones (or aldehydes).

Bufalin reverses ABCB1-mediated resistance to docetaxel in breast cancer.

Background: Docetaxel (DCT) is widely used in clinical practice, but the drug resistance of breast cancer patients has become an important reason to limit its clinical efficacy. Chan'su is a commonly used traditional Chinese medicine for the treatment of breast cancer. Bufalin (BUF) is a bioactive polyhydroxy steroid extracted from chan'su and has strong antitumor activity, but there are few studies on reversing drug resistance in breast cancer.

Preparation and research of PCL/cellulose composites: Cellulose derived from agricultural wastes.

For the rational use of agricultural wastes, bagasse, orange peel and wheat bran were used to fabricate bio-based polymer materials. Cellulose was extracted from the three different agricultural wastes, and poly(ε-caprolactone) (PCL) was used as the matrix material. PCL was mixed with nanocrystalline cellulose (CNC), extracted bagasse cellulose (GC), orange peel cellulose (JC) and wheat bran cellulose (MC) by solution casting.

Incorporating Ni-Polyoxometalate into the S-Scheme Heterojunction to Accelerate Charge Separation and Resist Photocorrosion for Promoting Photocatalytic Activity and Stability.

The emerging polyoxometalate (POM) nanomaterials are transition metal oxygen anion clusters with d electronic configurations, which could be attractive and potential photocatalysts. Hence, a nickel (Ni)-substituted polyoxometalate KNa[Ni(HO)(PWO)]·32HO (NiPOM)-incorporating step (S)-scheme heterojunction was developed to promote photocatalytic activity and stability in H and HO production. The multielectron transfer through variable valence metal centers in NiPOM would facilitate the recombination of invalid charges through the S-scheme pathway.

Plasmonic NiN Cocatalyst Boosting Directional Charge Transfer and Separation toward Synergistic Photocatalytic-Photothermal Performance of Hydrogen and Benzaldehyde Production as Well as Bacterial Inactivation.

Charge separation and transfer are the dominating factors in achieving high activity of solar energy-based photocatalysis. Here, a plasmonic transition metal nitride, NiN, nanosheet was fabricated and employed as an efficient cocatalyst to couple with CdZnS (CZS) solid solution via a self-assembly method to form a novel NiN/CZS heterojunction with an intimate interface. On one hand, localized surface plasmon resonance of the NiN nanosheets endowed the fabricated NiN/CZS composite with a wide-spectrum light absorption capacity, even to the near-infrared range.

Boosting Interfacial Charge Transfer with a Giant Internal Electric Field in a TiO Hollow-Sphere-Based S-Scheme Heterojunction for Efficient CO Photoreduction.

The construction of an S-scheme charge transfer pathway is considered to be a powerful way to inhibit charge recombination and maintain photogenerated carriers with high redox capacity to meet the kinetic requirements of the carbon dioxide (CO) photoreduction reaction. For an S-scheme heterojunction, an internal electric field (IEF) is regarded as the main driving force for accelerating the interfacial spatial transfer of photogenerated charges. Herein, we designed a TiO hollow-sphere (TH)-based S-scheme heterojunction for efficient CO photoreduction, in which WO nanoparticles (WP) were applied as an oxidation semiconductor to form an intimate interfacial contact with the TH.

Construction of a ZnInS/Au/CdS Tandem Heterojunction for Highly Efficient CO Photoreduction.

Photocatalytic CO reduction technology is of great importance to alleviate energy crisis and environmental pollution; however, it remains a serious challenge due to the fast recombination of carriers. In this study, we report a three-dimensional structure of a ZnInS/Au/CdS composite photocatalyst for the CO reduction reaction, where Au nanoparticles (NPs) are evenly anchored on the surface of ZnInS by photodeposition and Au NPs are wrapped around by CdS. In ZnInS/Au/CdS composite photocatalysts, Au NPs act as a bridge to construct a "semiconductor-metal-semiconductor" tandem electron transfer mechanism (ZnInS → Au → CdS) heterojunction, which greatly promotes the transfer of photogenerated electrons.

Constructing Schottky junctions via Pd nanosheets on DUT-67 surfaces to accelerate charge transfer.

The separation, transfer and recombination of charge often affect the rate of photocatalytic reduction of CO. Schottky junctions can promote the rapid separation of space charge. Therefore, in this paper, Pd nanosheets were grown on the surface of DUT-67 by a hydrothermal method, and a Schottky junction was constructed between DUT-67 and Pd.

Multichannel Electron Transmission and Fluorescence Resonance Energy Transfer in InS/Au/rGO Composite for CO Photoreduction.

Efficient electron transmission is an important step in the process of CO photoreduction. In this paper, a multi-interface-contacted InS/Au/reduced graphene oxide (rGO) photocatalyst with the fluorescence resonance energy transfer (FRET) mechanism has been successfully prepared by the solvothermal, self-assembly, and hydrothermal reduction processes. Photocatalytic CO reduction experiments showed that the InS/Au/rGO (IAr-3) composite exhibited excellent photoreduction performance and photocatalytic stability.

Constructed Z-Scheme g-CN/AgVO/rGO Photocatalysts with Multi-interfacial Electron-Transfer Paths for High Photoreduction of CO.

Z-scheme g-CN/AgVO/reduced graphene oxide (rGO) photocatalysts with multi-interfacial electron-transfer paths enhancing CO photoreduction under UV-vis light irradiation were successfully prepared by a hydrothermal process. Transmission electron microscope images displayed that the prepared photocatalysts have a unique 2D-0D-2D ternary sandwich structure. Photoelectrochemical characterizations including TPR, electrochemical impedance spectroscopy, photoluminescence, and linear sweep voltammetry explained that the multi-interfacial structure effectively improved the separation and transmission capabilities of photogenerated carriers.