Black phosphorus and polymeric carbon nitride heterostructure for photoinduced molecular oxygen activation. Enhanced superoxide generation on defective surfaces for selective photooxidation. Neighboring sp-hybridized carbon participated molecular oxygen activation on the interface of sub-nanocluster CuO/graphdiyne. The surface-structure sensitivity of dioxygen activation in the anatase-photocatalyzed oxidation reaction. Recent advances in molecular oxygen activation via photocatalysis and its application in oxidation reactions. Palladium-based nanomaterials: A platform to produce reactive oxygen species for catalyzing oxidation reactions. Unravelling the synergy between oxygen vacancies and oxygen substitution in BiO 2− x for efficient molecular-oxygen activation. Dual-atomic- site catalysts for molecular oxygen activation in heterogeneous thermo-/electro-catalysis. Pt atomic single-layer catalyst embedded in defect-enriched ceria for efficient CO oxidation. Reactive oxygen nano-generators for cancer therapy. Tumor-microenvironment-activated reactive oxygen species amplifier for enzymatic cascade cancer starvation/chemodynamic/Immunotherapy. Spatiotemporally synchronous oxygen self-supply and reactive oxygen species production on Z-scheme heterostructures for hypoxic tumor therapy. The chemistry of protein oxidation in food. This work presents a feasible methodology to regulate inside-out polarization for guiding carriers transfer behavior, and may advance the solid understanding on the intrinsic mechanism. Therefore, the well-recrystallized Bi 2WO 6 nanosheets exhibit considerably promoted piezo-photocatalytic reactive oxygen species generation, given the decreased specific surface area. Besides, exposure of large-area front facet enables more efficient capture and conversion of stress into piezo-potential. 50 to 180 nm), which separately allows the rise in dipole moment of unit cell (e.g., 1.63 D increase along a axis) and the stacking of the distorted octahedron to accumulate the unit cell dipole, collectively contributing to the considerably strengthened spontaneous polarization and piezoelectricity. The secondary recrystallization process not only results in a strengthened distortion of octahedra with distortion index enhancement by ~ 20% for a single octahedron, but also enables lateral crystal growth of nanosheets along the ab plane (av. Herein, we report a secondary recrystallization approach to achieving the simultaneous micro- and macroscopic polarization enhancement on Bi 2WO 6 nanosheets for boosting piezophotocatalytic oxygen activation, and unravel the mechanism at an atom-level. Developing polarization strategy is desirable, and particularly understanding its mechanism from a microscopic perspective remains scanty. This is because the small amount of starting material can make it difficult to control the crystallization process.Piezoelectric semiconductors bear the bifunctional photocatalysis and piezocatalysis, while the absent or weak internal charge driving force severely restricts its catalytic activity.

The main issue with micro recrystallization is that it can be difficult to obtain a high yield of pure compound. The goal is to obtain a pure compound with a high yield. It involves dissolving the compound in a larger amount of solvent and then slowly cooling the solution to induce crystallization. Macro recrystallization, on the other hand, is used to purify larger amounts of compounds, typically more than 100 mg.

Macro recrystallization, on the other hand, is used to purify larger amo. It involves dissolving the compound in a minimum amount of solvent and then slowly adding a second solvent to induce crystallization.

Macro vs micro recrystallization