Bovine bone-based activated carbon composite containing nanomagnetite as a catalyst for photo-Fenton reactions.

Magnetic composites (MC) prepared from magnetite nanoparticles (MNP) and activated carbon from bovine bone (AC) in different proportions (75/25, 50/50, and 25/75) were used as catalysts in the photo-Fenton process to degrade methylene blue (MB) in aqueous solution. The materials were prepared by the citrate-nitrate sol-gel synthesis method and used as catalysts in the photo-Fenton process. The photocatalytic tests were performed in a cylindrical reactor with a 4.

Impact of Particle Size on the Setting Behavior of Tricalcium Silicate: A Comparative Study Using ISO 6876 Indentation Testing and Isothermal Induction Calorimetry.

This study examines the impact of particle size on the setting behavior of tricalcium silicate powders. The setting behavior was evaluated using ISO 6876 indentation testing and isothermal induction calorimetry techniques. The objective was to compare the outcomes obtained from these methods and establish a correlation between particle size and setting characteristics.

Coal mining pyritic waste in Fenton-like processes: Raw and purified catalysts in Reactive Blue 21 dye discoloration.

Raw pyritic waste (RPW) from South Brazilian coal deposits and pure pyritic waste (PPW) were used as catalysts for organic dyes discoloration. Samples were characterized for their chemical, morphological, and structural properties. There was a significant content of Fe and S in both samples from the presence of iron sulfide.

Dissolution, bioactivity behavior, and cytotoxicity of 19.58Li O·11.10ZrO ·69.32SiO glass-ceramic.

Glass and bioactive glass-ceramic can be used in several applications. In bone growth where good bone/biomaterial adhesion was required, bioactive coatings for implants can improve bone formation. The glass and glass-ceramics of the LZS (Li O-ZrO -SiO ) system are very interesting because of their mechanical, electrical, and thermal properties.

Aluminum anodizing waste and its uses: An overview of potential applications and market opportunities.

The aluminum anodizing process generates a large volume of waste composed mainly of amorphous aluminum hydroxide with chemical compatibility to be used in other industrial processes as an alternative starting raw material. This waste has several application possibilities such as the production of refractories, ceramic pigments, bricks, and many others. However, despite its potential features, its recycling process is far from well consolidated.

Combating pathogens with CsHPWO nanoparticles: a new proton-regulated antimicrobial agent.

The transfer of pathogens from contaminated surfaces to patients is one of the main causes of health care-associated infections (HCAIs). Cases of HCAIs due to multidrug-resistant organisms have been growing worldwide, whereas inorganic nano-antimicrobials are valuable today for the prevention and control of HCAIs. Here, we present a cesium salt of phosphotungstic heteropolyacid (CsHPWO) as a promising nanomaterial for use in antimicrobial product technologies.

Mechanical and toxicological evaluation of concrete artifacts containing waste foundry sand.

The creation of metal parts via casting uses molds that are generally made from sand and phenolic resin. The waste generated after the casting process is called waste foundry sand (WFS). Depending on the mold composition and the casting process, WFS can contain substances that prevent its direct emission to the environment.