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We fabricated peculiar, highly cogent Fe@g-C3N4 catalysts. Under visible light conditions, Fe@g-C3N4 (1 : 1) catalyst achieved 100% cyclohexanone conversion with 99.85% 2-oxepanone selectivity in the Baeyer–Villiger oxidation reaction.

Dodecahydrotriphenylene, a higher homologue of trindane chemoselectively undergoes unidirectional benzylic sp3 C–H oxidation and the central benzene ring remains intact unlike that in trindane under similar reaction conditions. RuO4 which generally attacks sp2 C–H to form oxidative products is found to give benzylic ketones via sp3 C–H oxidation. Density functional theory (DFT) calculations have also been performed to analyse the potential energy, energy barrier and HOMO–LUMO energy gap of the products.

Pesticide deposits post-treatment and before diffusing inside the plants are exposed to sunlight. Many of them degrade into a variety of photo products that may be harmful to living beings through accidental ingestion. The addition of ultraviolet light absorbers to the pesticide formulations is an attractive strategy to prevent photodegradation of the pesticides. Water-soluble quaternary ammonium ultraviolet light absorbers (QAUVAs) were synthesized from 2,4-dihydroxy benzophenones (BP-1) and their structures were confirmed by 1H NMR, 13C NMR, UV, and FTIR. A cost-saving approach for the photoprotection of disulfoton insecticide using these QAUVAs is presented. All the four QAUVAs exhibit excellent UV screening effect. The insesticide disulfoton was recovered in much higher amounts (22.27 ~ 25.64% higher than control) when it was irradiated in the presence of QAUVAs in comparison with the amount of recovery of pesticide exposed in absence of them.

Pesticide deposits post-treatment and before diffusing inside the plants are exposed to sunlight. Many of them degrade into a variety of photoproducts that may be harmful to living beings through accidental ingestion. The addition of ultraviolet light absorbers to the pesticide formulations is an attractive strategy to prevent photodegradation of the pesticides. Water-soluble quaternary ammonium ultraviolet light absorbers (QAUVAs) were synthesized from 2,4-dihydroxy benzophenones (BP-1) and their structures were confirmed by

Dodecahydrotriphenylene, a higher homologue of trindane chemoselectively undergoes unidirectional benzylic sp

In recent times, humidity measurement has become an essential physical quantity for measurement, as it is used in a plethora of domestic and industrial applications, including moisture control in multistory buildings, areas in automobile manufacturing plants that must avoid corrosion, environmental measurements, the beverage industry, pharmaceuticals, cosmetics, and food processing analysis industries. Furthermore, if water vapor is present in a processing unit, it can affect the final product, possibly causing changes in its material, biological, and physical properties. Measurement of humidity in the industry is challenging due to its high cost and fewer safety aspects, and thus humidity measurement is a significant research area. There are several humidity sensors available based on materials like ceramic, metals, polymers, and 2D materials. However, sensors based on these materials are very costly, have high recovery and response times, involve complex fabrication processes, and also are not environmentally friendly. On the other hand, humidity sensors fabricated from nanomaterials are very affordable, highly accurate, have high surface area, have long-lasting properties and nontoxic properties, as well as an easy manufacturing procedure. To increase the production rate in industry as well as accuracy and precision, smart manufacturing is needed. It is a manufacturing concept based on fully automatic machinery that reduces the human effort in industry and enables better controlled production. In this process the role of humidity sensors is vital, as humidity is a critical factor that needs to be measured in many applications related to smart manufacturing. This chapter reviews different types of humidity nanosensors, describing the state of the art, how they are used in smart manufacturing, fabrication methods, and important applications.