α‐FeOOH−MoO₃ Nanorod for Effective Photo‐Fenton Degradation of Dyes and Antibiotics at a Wide Range of pH

Abstract

It's highly significant to develop a novel catalyst, which can be active at a wide range of pH, for an effective photo‐Fenton reaction. In this work, α‐FeOOH−MoO3 nanorod was prepared by a one‐step hydrothermal method and applied in photo‐Fenton degradation of organic pollutants. Benefit from the electron migration mechanism of Z‐scheme and excellent photoelectric performance, the catalyst exhibited superior photo‐Fenton activity in degradation of organic pollutants. In addition, the catalyst holds good stability after 5 recycles. These results demonstrated that this catalyst has wide application prospect in organic wastewater treatment.

Harnessing Synchronous Photothermal and Photocatalytic Effects of Substoichiometric MoO3–x Nanoparticle-Decorated Membranes for Clean Water Generation

“…Substoichiometric molybdenum oxide (MoO 3– x ), as a species of localized surface plasmon resonance (LSPR) materials, has outstanding optical absorption property in the whole solar spectrum due to the abundant oxygen defects, as well as good photothermal conversion. − Moreover, MoO 3– x is a promising photocatalyst owing to its narrow band gap (ca. 2.7 eV), which is beneficial for the production of oxidized radical species and thus the photocatalytic degradation reactions. − Apart from all the above features, MoO 3– x nanoparticles with small particle size possess large specific surface area for catalytic reaction, strong local-thermal effect, and low thermal conductivity, which have been widely used in bacterial disinfection, photodynamic therapy, photothermal disinfection, and so forth. − We anticipate that with these merits, MoO 3– x nanoparticles have huge potential in the field of solar-driven clean water production, but few studies have been conducted.…”

FeOOH Quantum Dot-Coupled Z-Scheme BiVO4/g-C3N4 Heterojunction for Enhancing Photo-Fenton Reactions

“…Advanced oxidation processes (AOPs) are technological approaches that use strongly oxidizing radicals (mostly OH radicals) to degrade organic pollutants and are broadly defined as chemical oxidation techniques. − The photo-Fenton process is an inexpensive, simple, environmentally friendly, and efficient method commonly used to treat difficult-to-degrade organic pollutants. − However, the process has many problems that limit its practical application, such as high H 2 O 2 demand, poor recoverability, and low conversion efficiency between Fe 3+ and Fe 2+ . The use of one advanced oxidation technology alone often does not achieve good treatment results, especially for environmentally complex treatment of actual antibiotics. , Combined advanced oxidation technologies can reduce the need for H 2 O 2 and shorten the reaction time.…”