Recovery and Optical Application of Noble Metals Compound

Dear Colleagues,

As is well known, noble metals (NMs) represent global valuable and strategical assets and play a critical role in a wide range of conventional (i.e., jewelry, coins, bio-medicine) as well as high-tech fields (i.e., electric and electronic equipment, catalysis, pharmaceuticals, photonics). Specifically speaking about optical applications, NM complexes have largely been demonstrated to behave, when properly designed, as photoactive moieties where light-induced functions can be tuned and controlled by modification of the ligands with an impact on electron and energy transfer processes addressed at molecular switching, signaling, and energetics. The high quest of NMs coupled with the increasing risk of shortage in the supply, both for depletion of natural resources and governance and trade aspects of suppliers, make these metals critical elements and their recovery from scraps highly appealing for economic and environmental purposes. In this framework, this Special Issue of Molecules is devoted to collecting valued contributions on: i) sustainability in NM recovery and recycling via waste enhancement to secondary resources addressed at circular economy models, and ii) molecular engineering of NM complexes to achieve linear and nonlinear optical and stimuli-responsive properties. All scientists working in these fields are warmly invited to submit their works for publication in this Special Issue.

Prof. Dr. Paola Deplano
Prof. Dr. Angela Serpe
Guest Editors

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