Herein, a concise survey on the latest enhancements of the recently discovered metal-free halide perovskites (MFHPs) as the last member of the ABX3 perovskite systems is portrayed with regard to its preferential characteristics, functions, and diverse structure. Even with features such as electronic band structures similar to physical characteristics such as liquids applied in optoelectronic systems, the heyday of metal-halide perovskites did not last long, because of the emergence of MFHPs. Indeed, the toxic nature of Pb-containing halide perovskites obstructs scaling up in practice while tending to eco-benign materials utilized in the adjustable design and functional probing has come into view as a significant hotspot in photovoltaic research. The MFHPs emerge with unprecedented properties, including light weight, excellent optoelectronic function, variable chemical structures, adjustability, mechanical adaptability, and environmentally benign procedures. These organic semiconductors with good efficiency and long-term stability are used in light-harvesting devices. Here, in the enterprise to upgrade the latest state of the art, we mean to have a quick browse on the various crystalline structure, synthesis approaches, and different properties of metal-free organic halide materials such as ferroelectric, dielectric, piezoelectric, charge-transport, electrocaloric refrigeration and mechanical properties. Future perspectives on this late-rising category also are submitted.

Herein, a novel designed antimicrobial therapeutic drug delivery system is presented, in which halloysite nanotubes (HNTs) encapsulate a determined dosage of levofloxacin (lvx). Moreover, gold nanoparticles (AuNPs) have been embedded...

This study presents a novel photocatalytic system for photocatalytic degradation of Eriochrome black-T (EBT) dye via green light-emitting diode (LED) light exposure. This photocatalyst is comprised of nanoscale components, i.e., poly-(vinyl alcohol) (PVA), magnetic iron oxide nanoparticles (Fe 3 O 4 NPs), gold NPs (Au NPs), and zinc oxide nanorods (ZnO NRs), rendering an active high surface area. The most highlighted property from the structural facet is the superparamagnetic behavior of Fe 3 O 4 NPs, which provides a facile collection of magnetic photocatalyst NPs from the reaction flask and is successfully recycled eight times without considerable reduction in catalytic behavior. Briefly, the photocatalytic degradation at its highest efficiency reached 51.4% (10 ppm dye solution, 5.0 mL) and 64.75% (8 ppm dye solution, 5.0 mL) utilizing 10 mg of the designed photocatalyst (formulated as Fe 3 O 4 @PVA−Au/ZnO), a magnetic photocatalytic system under green LED light (7 W, 526 nm) exposure for 60 min. Besides, the photocatalytic degradation mechanism of the EBT dye by the as-prepared photocatalyst was proposed. Based on the obtained results, the presented photocatalytic method was recommended for scaling up and large-scale exploitation for the purification of the water resources.

In the current study, we introduce a hybrid magnetic nanocomposite comprised of curcumin (Cur), iron oxide magnetic nanoparticles (Fe3O4 MNPs), melamine linker (Mel), and silver nanoparticles (Ag NPs). Initially, a facile in situ route is administrated for preparing the Fe3O4@Cur/Mel-Ag effectual magnetic catalytic system. In addition, the advanced catalytic performance of the nanocomposite to reduce the nitrobenzene (NB) derivatives as hazardous chemical substances were assessed. Nevertheless, a high reaction yield of 98% has been achieved in short reaction times 10 min. Moreover, the Fe3O4@Cur/Mel-Ag magnetic nanocomposite was conveniently collected by an external magnet and recycled 5 times without a noticeable diminish in catalytic performance. Therefore, the prepared magnetic nanocomposite is a privileged substance for NB derivatives reduction since it achieved notable catalytic activity.

A soft-matter based antimicrobial nano-cargo made of beta-cyclodextrin and ciprofloxacin is reported.