Surface modification of phosphate ion to promote photocatalytic recovery of precious metals

Oxygen Vacancy Defect Engineering of Heterophase Junction TiO2: Interfacial/Surface Oxygen Vacancies Coadjust the Photocatalytic ROS Production

“…In the experiment process, DMPO was chosen as the ESR probe molecule of • O 2 – . Methanol was used as a DMPO solvent in the detection process of • O 2 – . , Hydroxyl radical ( • OH) and singlet oxygen ( 1 O 2 ) were also determined by EPR. DMPO was chosen as the ESR probe molecule of • OH.…”

Trash or treasure? Sustainable noble metal recovery

“…Furthermore, a certain degree of improvement in photocatalytic dissolution rate of noble metals was observed by decorating phosphate (PO 4 3− ) on the surface of TiO 2 . 65 On one hand, PO 4 3− exhibited oxyphilic properties, supporting the formation of superoxide radicals. On the other hand, the negatively charged surface facilitated the migration of photogenerated vacancies across the catalyst surface.…”

Bi2Fe4O9@ZnIn2S4 S-scheme laminated heterojunction photocatalyst towards optimized photocatalytic performance

“…1–4 Photocatalysis technology is considered a feasible way to solve the above problems, and it is widely used in pollutant degradation, H 2 production, CO 2 reduction and other aspects. 5–8 Therefore, rational design of high-efficient photocatalysts is urgent. ZnIn 2 S 4 has become one of the most promising photocatalysts due to its layered structure and strong visible light absorption.…”