Unraveling the Multifunctional Sites of Ag Single-Atom and Nanoparticles Confined Within Carbon Nitride Nanotubes for Synergistic Photocatalytic Hydrogen Evolution.

The development of novel nano-single-atom-site catalysts with optimized electron configurations and active water adsorption (HO) to release hydrogen protons (H) is paramount for photocatalytic hydrogen evolution (PHE), a multi-step reaction process involving two electrons. In this study, an atom-confinement and thermal reduction strategy is introduced to achieve synergistic Ag single-atoms (Ag) and nanoparticles (Ag) confined within carbon nitride nanotubes (Ag-CN) for enhanced photocatalytic hydrogen evolution. Mechanistic investigations reveal that HO adsorption/dissociation predominantly occurs at Ag sites, while Ag sites notably facilitate H release, indicating the synergistic effect between Ag and Ag in the H evolution reaction.

The excellent performance of oxygen evolution reaction on stainless steel electrodes by halogen oxyacid salts etching.

Development of low-cost, efficient, and stable electrocatalysts for oxygen evolution reaction (OER) is the key issue for a large-scale hydrogen production. Recently, in-situ corrosion of stainless steel seems to be a feasible technique to obtain an efficient OER electrode, while a wide variety of corrosive agents often lead to significant difference in catalytic performance. Herein, we synthesized Ni-Fe based nanomaterials with OER activity through a facile one-step hydrothermal etching method of stainless steel mesh, and investigated the influence of three halogen oxyacid salts (KClO, KBrO, KIO) on water oxidation performance.

Polyoxometalate-based plasmonic electron sponge membrane for nanofluidic osmotic energy conversion.

Nanofluidic membranes have demonstrated great potential in harvesting osmotic energy. However, the output power densities are usually hampered by insufficient membrane permselectivity. Herein, we design a polyoxometalates (POMs)-based nanofluidic plasmonic electron sponge membrane (PESM) for highly efficient osmotic energy conversion.

Interfacial tuning in FeP/ZnInS Ohm heterojunction: Enhanced photocatalytic hydrogen production via Zn-P charge bridging.

Interfacial regulation is key to photocatalytic performance, yet modulating interfacial charge transfer in heterostructures remains challenging. Herein, a novel nanoflower-like FeP/ZnInS Ohm heterostructure is first designed, with Zn atoms in ZnInS (ZIS) acting as potential anchoring sites around P atoms, forming liganded Zn-P bonds. Combining 1D FeP nanowires and 2D ZIS nanosheets enhances the mobility of photogenerated electrons.

Atomic Cobalt-Silver Dual-Metal Sites Confined on Carbon Nitride with Synergistic Ag Nanoparticles for Enhanced CO Photoreduction.

Photocatalytic reduction of CO to value-added solar fuels is of great significance to alleviate the severe environmental and energy crisis. Herein, we report the construction of a synergistic silver nanoparticle catalyst with adjacent atomic cobalt-silver dual-metal sites on P-doped carbon nitride (CoAg-PCN) for photocatalytic CO reduction. The optimized photocatalyst achieves a high CO formation rate of 46.

Heterogeneous Fenton-like removal of tri(2-chloroisopropyl) phosphate by ilmenite (FeTiO): Kinetic, degradation mechanism and toxic assessment.

Tri(2-chloroisopropyl) phosphate (TCPP), a common organophosphate flame retardant, was frequently detected in the environment and posed threats to human health. In this work, the main component of ilmenite FeTiO was synthesized by the sol-gel method and employed as the catalyst for the degradation of TCPP by activating persulfate (PS) under UV irradiation. The degradation processes were fitted by the pseudo-first-order kinetic.

Perylene diimide supermolecule (PDI) as a novel and highly efficient cocatalyst for photocatalytic degradation of tetracycline in water: A case study of PDI decorated graphitic carbon nitride/bismuth tungstate composite.

Employing perylene diimide supermolecule (PDI) as metal-free cocatalyst, a novel PDI/g-CN/BiWO (PCB) photocatalyst was constructed for the effective degradation of antibiotics. Both the photocatalytic activity and photostability of g-CN/BiWO (gCB) were further improved after loading PDI. Under simulated sunlight illumination, the apparent rate constant of tetracycline (TC) degradation by PCB reached 2.

The Psychological Nursing Interventions Based on Pygmalion Effect Could Alleviate Negative Emotions of Patients with Suspected COVID-19 Patients: a Retrospective Analysis.

Purpose: This study aims to explore the psychological status of suspected COVID-19 patients during quarantine and put forward a new yet effective psychological nursing strategy for intervention.

Patients And Methods: We performed a retrospective study with suspected COVID-19 patients who were hospitalized to the two hospitals of Hunan province, China and accepted the intervention of psychological nursing from 01/2020 to 03/2020. The control group received routine psychological nursing care and the observation group received the new psychological nursing intervention according to Pygmalion effect.

2D/3D S-scheme heterojunction of carbon nitride/iodine-deficient bismuth oxyiodide for photocatalytic hydrogen production and bisphenol A degradation.

A novel 2D/3D S-scheme carbon nitride/iodine-deficient bismuth oxyiodide (g-CN/BiOI) heterojunction was constructed for the first time by calcining a mixture of g-CN nanosheets and flower-like BiOI. Irradiated by visible light, this g-CN/BiOI heterojunction exhibited excellent photocatalytic hydrogen production and BPA degradation activity with high cycle stability. In particular, the photocatalytic activity of 0.

Green and efficient synthesis of Co-MOF-based/g-CN composite catalysts to activate peroxymonosulfate for degradation of the antidepressant venlafaxine.

Based on single metal-organic framework (MOF) composite catalyst ZIF-67/g-CN (ZG), the composite catalysts ZIF-67/MOF-74(Ni)/g-CN (ZNG) and ZIF-67/MIL-100(Fe)/g-CN (ZMG) with double MOFs were synthesized, used to effectively activate peroxymonosulfate (PMS) for degrade venlafaxine (VEN). Various characterization methods (XRD, FT-IR, Raman, SEM, EDS, TEM and TG) showed that ZIF-67 and g-CN; ZIF-67, MOF-74(Ni) and g-CN; as well as ZIF-67, MIL-100(Fe) and g-CN successfully formed heterostructures. The series of catalytic degradation results showed that within 120 min, the degradation rate of VEN by ZMG achieved 100% and the mineralization rate reached 51.

Bismuth-based complex oxides for photocatalytic applications in environmental remediation and water splitting: A review.

As an emerging group of visible-light-driven photocatalysts, bismuth-based complex oxides have attracted considerable attention owing to their outstanding photo-oxidation ability and high performance in decomposition of organic contaminants and water oxidation via photocatalytic processes. However, the relatively low level of the conduction band limits their further application in photocatalytic hydrogen evolution and overall water splitting processes. In this paper, three representative and most-studied Bi-based complex oxides of BiOX (X = Cl, Br, I)/BiFeO/BiWO are discussed mainly for environmental pollutants degradation and oxygen generation from water splitting.

CoP imbedded g-CN heterojunctions for highly efficient photo, electro and photoelectrochemical water splitting.

Nanorod-like CoP nanoparticles were fabricated from different precursors of Co(OH) and CoO by gas-solid reaction, then further embedded into g-CN nanosheets to form intimate heterojunctions via the (011) crystal planes of CoP nanoparticles. The heterojunction hybrid obtained from Co(OH) exhibits superior activity in photo, electro and photoelectrochemical water splitting processes. In photocatalytic water half-splitting for hydrogen evolution reaction, the as-obtained 0.

Bioremediation of cadmium-contaminated paddy soil using an autotrophic and heterotrophic mixture.

Cadmium (Cd) pollution poses a serious risk to human health and ecological security. Bioremediation can be a promising and effective remediation technology for treating Cd contaminated soils. In this study, seven heterotrophic strains were isolated from Cd contaminated soil and 7 autotrophic strains were isolated from acid mine drainage.

Temperature dependent photocatalysis of g-CN, TiO and ZnO: Differences in photoactive mechanism.

Photocatalysis has been believed as one of the green and sustainable avenues to address energy and environmental crises by converting solar energy to chemical energy via reactions. Temperature is usually a vital factor controlling kinetics and thermodynamics of a reaction, but it has been less investigated in photocatalysis. In this work, the effect of reaction temperature on photocatalysis was investigated in a simple process, photocatalytic degradation of Congo Red (CR) on three typical catalysts, g-CN, TiO and ZnO, to differentiate the interfacial radical generation and reaction mechanism.

Three-Dimensional BiOI/BiOX (X = Cl or Br) Nanohybrids for Enhanced Visible-Light Photocatalytic Activity.

Three-dimensional flower-like BiOI/BiOX (X = Br or Cl) hybrids were synthesized via a facile one-pot solvothermal approach. With systematic characterizations by X-ray diffraction (XRD), scanning electron microscopy (SEM), Transmission electron microscopy (TEM), the Brunauer-Emmett-Teller (BET)specific surface area, X-ray photoelectron spectroscopy (XPS), and the UV-Vis diffuse reflectance spectra (DRS), the BiOI/BiOCl composites showed a fluffy and porous 3-D architecture with a large specific surface area (SSA) and high capability for light absorption. Among all the BiOX (X = Cl, Br, I) and BiOI/BiOX (X = Cl or Br) composites, BiOI/BiOCl stands out as the most efficient photocatalyst under both visible and UV light irradiations for methyl orange (MO) oxidation.

Enhanced Dispersion of TiO2 Nanoparticles in a TiO2/PEDOT:PSS Hybrid Nanocomposite via Plasma-Liquid Interactions.

A facile method to synthesize a TiO2/PEDOT:PSS hybrid nanocomposite material in aqueous solution through direct current (DC) plasma processing at atmospheric pressure and room temperature has been demonstrated. The dispersion of the TiO2 nanoparticles is enhanced and TiO2/polymer hybrid nanoparticles with a distinct core shell structure have been obtained. Increased electrical conductivity was observed for the plasma treated TiO2/PEDOT:PSS nanocomposite.

[Microwave assisted photocatalytic degradation of phenol in aqueous solution].

Experimental study on microwave assisted photocatalytic degradation of phenol in aqueous solution was carried out with modified domestic microwave oven, electrodeless discharge lamps (EDLs) and TiO2 catalyst. Results showed that the removal rate of phenol in the MAPC process was 92% after 30 min reaction. Loss of total organic carbon (TOC) was 84% .

Low-temperature preparation and microwave photocatalytic activity study of TiO2-mounted activated carbon.

TiO2 thin films were deposited on granular activated carbon by a dip-coating method at low temperature (373 K), using microwave radiation to enhance the crystallization of titania nanoparticles. Uniform and continuous anatase titania films were deposited on the surface of activated carbon. BET surface area of TiO2-mounted activated carbon (TiO2/AC) decreased a little in comparison with activated carbon.

[Indirect ELISA for the pyrethroids-permethrin residue detection].

In order to detect the permethrin (Py) residue in environment samples, Ovalbumin(OVA)was used as protein carrier to couple with semi-antigen permethrin by active ester method. Indirect competitive ELISA (icELISA) was established. The most appropriate titration of coating antigen was 0.

Photocatalytic degradation of methylene blue in TiO2 aqueous suspensions using microwave powered electrodeless discharge lamps.

Photocatalytic degradation of methylene blue (MB) in TiO(2) aqueous suspensions using microwave (MW) powered electrodeless discharge lamps (EDLs) was studied. MB of initial concentration 100 mg/l was mainly decomposed in the process of photocatalytic degradation using EDLs (PCD/EDLs) after 15 min of irradiation. The corresponding mineralization efficiency was 45%.