Novel ultralong and photoactive BiTiO/TiO heterojunction nanofibers toward efficient textile wastewater treatment.

The elimination of dyes from textile wastewater with a lower carbon footprint is highly contingent on the design of green catalysts. Here, we innovatively developed ultralong one-dimensional BiTiO/TiO heterojunction nanofibers electrospinning so as to photocatalytically degrade dyes efficiently and sustainably through the utilisation of renewable solar irradiation. The heterostructured BiTiO/TiO nanofibers exhibited desirable activity in the visible light region through the slight shift of the absorption edge to a longer wavelength.

Spatially isolated CoN quantum dots on carbon nanotubes enable a robust radical-free Fenton-like process.

We unprecedentedly report spatially separated CoN nanodots on carbon nanotubes (CNTs) a facile formamide condensation reaction. To our knowledge, CoN-CNTs outperform the activities of current catalysts in peroxymonosulfate activation. CoN-CNT-oriented radical-free degradation of contaminants shows robust anti-interference capacity toward environmental conditions.

Magnetic CoFeO nanocrystals derived from MIL-101 (Fe/Co) for peroxymonosulfate activation toward degradation of chloramphenicol.

In this study, porous magnetic CoFeO nanocrystals (NCs) were successfully synthesized by using bimetal-organic framework (MOF) as a precursor, and used as catalysts to activate peroxymonosulfate (PMS) for the removal of chloramphenicol (CAP) in the solution. The structure and physicochemical properties of CoFeO NCs were thoroughly examined by a series of characterization techniques. The results revealed as-synthesized CoFeO had a nanorod-shaped structure with high specific surface area (83.

Nanocrystalline ferrihydrite activated peroxymonosulfate for butyl-4-hydroxybenzoate oxidation: Performance and mechanism.

Heterogeneous catalysts activated peroxymonosulfate (PMS) for degradation of refractory organic contaminants has been recognized as a promising removal technology for the environmental remediation. In this study, nanocrystalline ferrihydrite (NFH) was prepared to activate PMS for the degradation of butyl-4-hydroxybenzoate (BHB). XPS analysis indicates that calcination process played a key role in regulating the surface oxygen species of NFH, thus control its activation ability toward PMS.

One-step fabrication of recycled Ag nanoparticles/graphene aerogel with high mechanical property for disinfection and catalytic reduction of 4-nitrophonel.

Fabrication of smart composites with expected removal property and excellent recycle performance for micro-pollutants including microbes and organic contaminants without formation of second-pollutants is highly desired. In this work, Ag nanoparticles (Ag NPs) homogenously loaded on graphene aerogel (GA) as Ag NPs/GA was facilely fabricated by a one-step process and the composite was characterized in detail. The bactericidal performance of the composite towards was evaluated and the catalytic activity was probed for the reduction of 4-nitrophenol (4-NP).