**Preface to "10th Anniversary of** *Nanomaterials* **— Recent Advances in Environmental Nanoscience and Nanotechnology"**

The rapid development of nanoscience and nanotechnology, including advanced methods of fabrication and characterization of nanostructured composites and hybrid materials, has been the driving force of strong progress in all areas of classical science and engineering (e.g., chemistry, physical chemistry, chemical engineering, catalysis, biology, medicine, optoelectronics, etc.), including current topical issues related to environmental protection, renewable and low carbon footprint energy production, and sustainable development.

Rationally designed nano-structured catalysts particularly at the nano-to-atom scale, the so-called nano-catalysts, offer grea<sup>t</sup> advantages that provide innovative, cost-effective, and durable materials with exceptional well-tailored surface chemistry properties and performance optimization in environmental and energy applications. Among others, these applications include emission-control catalysis, waste treatment, photocatalysis, bio-refinery, CO2 utilization, and fuel cell applications as well as hydrocarbon processing for H2, value-added chemicals, and liquid fuel production.

Celebrating its 10th anniversary, the journal Nanomaterials organized a series of Special Issues with state-of-the-art topics that cover and highlight the aims and scope of the journal as well as the future scientific and technical perspectives of this field. The present SI entitled "Advances in Environmental Nanoscience and Nanotechnology" was one such SI that finally succeeded in compiling some important and high-quality contributions that cover the recent research progress in various sub-directions of the title and can become guides for further research in the field.

> **Ioannis V. Yentekakis** *Editor*
