Green Chemistry

Ice formation remains a critical challenge across multiple industries, posing safety risks, economic burdens, and, in extreme cases, fatalities. Effective anti-icing strategies are essential to mitigate these issues, yet the demand for environmentally friendly, cost-effective, and efficient solutions persists. Natural deep eutectic solvents (NADES) have emerged as a promising low-toxicity alternative for addressing ice formation.

Diels-Alder (DA) reactions result in the formation of two carbon-carbon bonds of six-membered ring structures with high atom economy. The use of unsaturated organoboranes, which are widely available and exhibit low toxicity, enables the modulation of reactivity and selectivity in these reactions and also allow a variety of subsequent transformations the carbon-boron bond. These characteristics align these reactions with the principles of green chemistry.

Fluoropolymers, notably poly(vinylidene fluoride-co-hexafluoropropylene) (PH), are rendered to be an excellent choice for superior performance coatings attributed to their exceptional mechanical robustness, thermal resistance, and resistance to chemical attack. However, their low surface energy results in poor adhesion to metal substrates, limiting their application in critical corrosion-resistant systems. To address this challenge, PH was hydroxyl-modified (PHOH) to introduce active functional groups that enhance bonding capabilities.

Amine-based adsorbents are widely used for CO2 capture. However, one of the biggest hurdles for their further development is their limited oxidation stability. Moreover, methods developed to improve the oxidation stability often lead to significant decrease in their CO2 (HES) on the CO2 uptake. Here, we investigated the effect of hydroxyethyl starch uptake and oxidation stability of impregnated polyethylenimine (PEI) adsorbents. Performance of HES-PEI co-impregnated materials was evaluated under different oxidation conditions using CO2 uptake measurements, and mass spectrometry.

The development of new lignin-based materials has become a very attractive alternative for researchers due to the particular properties that these can offer and their potential applications. Lignin is biosourced, abundant, biodegradable and renewable, for those reasons, it is an appealing feedstock from which to make materials for diverse applications in diverse fields. Lignin-based nanoparticles may offer properties and morphologies that differ from those of more conventional materials.

Bacterial nanocellulose (BNC) serves as a bio-inspired platform for developing multifunctional metamaterials, with potential applications in energy storage, aerospace, and biomedical technologies. This research integrates three key studies aimed at enhancing BNC’s performance and versatility. First, UV Radiation-Enhanced Production Yield increases scalability through sustainable biosynthesis, optimizing BNC production for larger-scale applications.

Many halogenated compounds are used as intermediates in the synthesis of compounds of interest to the chemical, pharmaceutical industries; however, chemical halogenation involves the use of high-cost reagents that are often harmful to the environment.

The mechanical recycling of multilayer laminated packaging films (MLPF) poses a considerable challenge due to the heterogeneity in plastic types and adhesives utilized. To address this challenge, this study uses two-step integrated chemolysis to upcycle MLPF. First, acids (acetic acids, formic acids, and succinic acids) were used to delaminate MLPF into separate layers that are made of polyethylene terephthalate (PET) and metalized polyethylene (PE/Al).

In this work we assess water quality through physicochemical analyses while incorporating an Analytical GREEnness metric approach to evaluate the sustainability of the analytical methods employed.