Efficient Chemical Technologies and Adsorbents for Environmental Pollution Removal and Wastes Recycl

The preprint, titled "Efficient Chemical Technologies and Adsorbents for Environmental Pollution Removal and Waste Recycling II", comprises scientific articles on modern adsorption materials and their applications in environmental protection, particularly in the treatment of water, wastewater, and soil. The articles focus on contaminants such as heavy metal ions (e.g. Cr(VI), Cu(II) and Pd(II)), dyes (e.g., Reactive Black 5 and Rhodamine B), phenols, bisphenol A, and pharmaceuticals. They also cover the effective removal of these contaminants from aqueous solutions and wastewater using adsorption and catalytic ozonation. The collected papers present the latest research on sorbents derived from natural and chemically modified raw materials, as well as nanocomposites, for use in environmental and industrial applications. Furthermore, the articles evaluate the removal efficiency of these contaminants and advocate the effectiveness of the proposed solutions. The preprint is complemented by a review article on metal phenolic networks (MPNs) based on gallic acid (GA), which highlights the possibilities of their formation, characterization techniques, and applications in adsorption and adsorbent surface modification. This preprint is a comprehensive and up-to-date source of knowledge that combines materials chemistry, environmental engineering, and sustainable development. It is intended for researchers, practitioners, and decision-makers who are interested in innovative environmental solutions.