Preparation of Cu/CuO/BC and Its Performance in Adsorption-Photocatalytic Degradation of Methyl Orange in Water.

In this study, we prepared a low-cost novel Cu/CuO/BC nanocomposite visible-light photocatalyst by the impregnation method using CuSO·5HO and rice husk biochar (BC) as raw materials and NaSO as a single reductant to improve the stability and dispersion of the Cu/CuO nanoparticles, in order to solve their aggregation tendency during photocatalysis. The morphology and structure of the Cu/CuO/BC were characterized using various analytical and spectroscopic techniques. The photocatalytic effect and cyclic stability of the synthesized photocatalyst on methyl orange (MO) removal were investigated under visible light radiation and various parameter conditions, including the mass ratio of BC to Cu/CuO, initial MO concentration, pH, temperature, and catalyst dosage.

Step-scheme CsPbBr/BiOBr photocatalyst with oxygen vacancies for efficient CO photoreduction.

Metal halide perovskites with suitable energy band structures and excellent visible-light responses have emerged as promising photocatalysts for CO reduction to valuable chemicals and fuels. However, the efficiency of CO photocatalytic reduction often suffers from inefficient separation and sluggish transfer. Herein, a step-scheme (S-scheme) CsPbBr/BiOBr photocatalyst with oxygen vacancies possessing intimate interfacial contact was fabricated by anchoring CsPbBr QDs on BiOBr-Ov nanosheets using a mild anti-precipitation method.

Removal mechanism of Pb(ii) from soil by biochar-supported nanoscale zero-valent iron composite materials.

As an adsorbent, biochar has a highly porous structure and strong adsorption capacity, and can effectively purify the environment. In response to the increasingly serious problem of heavy metal pollution in water, this study used nano zero valent iron and rice husk biochar to prepare a new type of magnetic sheet-like biochar loaded nano zero valent iron (BC-nZVI) composite material through rheological phase reaction, showing remarkable advantages such as low cost, easy preparation, and superior environmental remediation effect. The physical and chemical properties and structure of the material were extensively characterized using various methods such as HRTEM, XPS, FESEM, EDS, XRD, FTIR, and RAMAN.

Stability of Multivalent Ruthenium on CoWO Nanosheets for Improved Electrochemical Water Splitting with Alkaline Electrolyte.

Engineering low-cost electrocatalysts with desired features is vital to decrease the energy consumption but challenging for superior water splitting. Herein, we development a facile strategy by the addition of multivalence ruthenium (Ru) into the CoWO/CC system. During the synthesis process, the most of Ru ions were insinuated into the lattice of CoWO, while the residual Ru ions were reduced to metallic Ru and further attached to the interface between carbon cloth and CoWO sheets.

Cost-effective core@shell structured zero-valent iron nanoparticles @ magnetic (nZVI@FeO) for Cr(vi) removal from aqueous solutions: preparation by disproportionation of Fe(ii).

Nanoscale zero-valent iron (nZVI) and its composites are known for their excellent ability to remove Cr(vi), but their preparation can be expensive due to the reduction processes. This study presents a cost-effective method to prepare core@shell structured nZVI@FeO nanocomposites using a novel Fe(ii) disproportionation reaction. The nZVI@FeO was thoroughly characterized using various techniques, including FESEM, HRTEM, EDS, XPS, XRD, FTIR, and VSM.

Genetic diversity analysis of lychnis mottle virus and first identification of infection.

Gansu Province is a district renowned for the cultivation of (Oliv.) Diels, accounting for greater than 90% of China's total annual production. However, virus infection has caused a reduction in yield.