Abstract
Water is a ubiquitous solvent in biological, physical, and chemical processes. Unique properties of water result from water’s tetrahedral hydrogen-bonded (HB) network (THBN). The original THBN is destroyed when water is confined in a nanosized environment or localized at interfaces, resulting in corresponding changes in HB-dependent properties. In this work, we present an innovative idea to validate the reserve energy of high-energy water and applications of high-energy water to promote water’s fundamental activities of solubility, ionic conductivity, and extraction at room temperature. High-energy water with reduced HBs was created by utilizing hot electrons with energies from the decay of surface plasmon excited at gold (Au) nanoparticles (NPs). Compared to conventional deionized (DI) water, solubilities of alkali metal-chloride salts in high-energy water were significantly increased, especially for salts that release heat when dissolved. The ionic conductivity of NaCl in high-energy water was also markedly higher, especially when the electrolyte’s concentration was extremely low. In addition, antioxidative components, such as polyphenols and 2,3,5,4’-tetrahydroxystilbene-2-O-beta-d-glucoside (THSG) from teas, and Polygonum multiflorum (PM), could more effectively be extracted using high-energy water. These results demonstrate that high-energy water has emerged as a promising innovative solvent for promoting water’s fundamental activities via effective energy transfer.
Highlights
Water is a ubiquitous solvent in biological, physical, and chemical processes
As reported by Velasco-Velez et al, analysis of an ab initio molecular dynamic (AIMD) simulation revealed that ~50% of interfacial water molecules lie flat on the gold (Au) surface with broken HBs
Hot electrons can move into the MoS2 monolayer to induce a structural phase transition[18], and the generated photocurrent generated from hot-electron injection of Au nanorods into ZnO nanowires can be detected by near-infrared (IR) photodetectors[19]
Summary
Chih-Ping Yang[1], Hsiao-Chien Chen[2], Ching-Chiung Wang[3], Po-Wei Tsai[3], Chia-Wen Ho4 & Yu-Chuan Liu[2,5]. This innovative idea of validating the reserve energy in AuNT water is exhibited in Figure S2 regarding the ORC procedure for roughening the same Au substrate (in a predominant (220) orientation) in different waters containing different 0.1 N alkali metal-chloride salts. We successfully utilized plasmon-induced high-energy AuNT liquid water to promote water’s fundamental activities of solubility, ionic conductivity, and extraction at room temperature. The distinct property of AuNT water led to correspondingly fast evaporation rates for both itself and its ionic solutions These encouraging findings, which are the first shown in the literature, demonstrate that high-energy water has emerged as a promising innovative solvent for promoting water’s fundamental activities via effective energy transfer
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