Effective Improvement of Thermodynamics and Kinetics of BiVO Photoanode via CuI for Photoelectrochemical Water Oxidation.

The preparation of durable and efficient photoanodes for photoelectrochemical water oxidation is of great importance in promoting the development of green hydrogen production and artificial photosynthesis. Here, n-type BiVO was combined with p-type CuI to construct a CuI/BiVO (CIB-1) p-n heterojunction photoanode. The composite photoanode effectively overcame the drawbacks of BiVO, such as low separation and injection efficiency of photogenerated electron-hole pairs.

Carbonized Polymer Dots/Bi/β-BiO for Efficient Photosynthesis of HO via Redox Dual Pathways.

A novel heterojunction photocatalyst of carbonized polymer dots (CPDs)/Bi/β-BiO is successfully synthesized via a one-pot solvothermal method by adjusting the reaction temperature and time. As a solvent and carbon source, ethylene glycol not only supports the conversion of Bi to β-BiO but also undergoes its polymerization, cross-linking, and carbonization to produce CPDs. In addition, partial Bi is reduced to Bi by ethylene glycol.

Synergy Effect of the Enhanced Local Electric Field and Built-In Electric Field of CoS/Mo-Doped BiVO for Photoelectrochemical Water Oxidation.

Bismuth vanadate is a promising material for photoelectrochemical water oxidation. However, it suffers from a low quantum efficiency, poor stability, and slow water oxidation kinetics. Here, we developed a novel photoanode of CoS/Mo-BiVO with excellent photoelectrochemical water oxidation performance.

C-scheme electron transfer mechanism: An efficient ternary heterojunction photocatalyst carbon quantum dots/Bi/BiOBr with full ohmic contact.

With a facile one-pot solvothermal method, an efficient ternary heterojunction photocatalyst carbon quantum dots (CQDs)/Bi/BiOBr is firstly prepared. Ethylene glycol (EG) is used as the solvent and carbon source for the first time. At 190 °C for 3 h, while BiOBr is synthesized, EG is employed to prepare CQDs through bottom-up method.

Selectively triggering photoelectromacro for COto CHreduction over SrTiO{110} facet with dual-metal sites.

In this article, the roles of surface-active sites in dominating photoelectron selectivity for COreduction products are well demonstrated over photocatalyst models of SrTiO{100} and {110} facets. On the easily exposed {100} facets terminated with Sr-O atoms, photoelectrons are of 8 mol % for CHand 92 mol % for CO generation. The Sr-O-Ti configuration in the {110} facets could enrich the surface charge density due to the lower interface resistance for higher photocatalytic efficiency (1.

Iodine-Deficient BiO I Coupling with Bi O for Degradation of Volatile Organic Compounds under Simulated Sunlight Irradiation.

A photocatalyst with a high separation efficiency of carriers is crucial for the photocatalytic efficient decomposition of volatile organic compounds (VOCs). In this work, a new iodine-deficient BiO I /Bi O photocatalyst was developed through a solvothermal approach coupled with thermal decomposition. The 2 wt % BiO I /Bi O sample demonstrated optimal photocatalytic activity for the degradation of toluene, achieving a 55.

Bi spheres SPR-coupled CuO/BiMoO with hollow spheres forming Z-scheme CuO/Bi/BiMoO heterostructure for simultaneous photocatalytic decontamination of sulfadiazine and Ni(II).

Environmental problem on the coexistence of organic pollutants and heavy metals in surface waters has become increasingly serious. Few relative researches have focused on their simultaneous decontamination. Herein, a ternary plasmonic Z-scheme CuO/Bi/BiMoO heterojunction was synthesized via two-step route followed by a wet-impregnation, where Bi spheres coupled with CuO particles were anchored on the surface of BiMoO with hollow microflower spheres.

Biological Decolorization and Degradation of Malachite Green by Pseudomonas sp. YB2: Process Optimization and Biodegradation Pathway.

A novel strain Pseudomonas sp. YB2, which was isolated from activated sludge, was studied for biological decolorization and degradation of malachite green (MG). The results show that this aerobic strain is an aerobic bacterium, which has relatively high salt tolerance and high antibiotic resistance.