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- W2883334360 abstract "A plasmonic WO3/Au photocatalyst was successfully synthesized by a reversible charging and discharging mechanism. The photocatalyst showed much higher photocatalytic activity and photoelectrochemical (PEC) performance than pure WO3, due to the localized surface plasmonic resonance (LSPR) enhancement of Au nanoparticles (Au NPs). In addition, Au NPs also could enhance the absorption of visible light and suppress the recombination of photogenerated electron-hole pairs. Hg2+ ions could make the effects of Au NPs weak through forming amalgam with Au at WO3/Au surface, thus the photocurrent response of the resulting WO3/Au/ITO electrode decreased. Hence, the electrode could be used for the selective detection of Hg2+ although no special recognition element was introduced. The wide linear range of 4.2 pM‒840 pM and quite low detection limit of 2.0 pM made it suitable for the detection of ultra-micro Hg2+ in real samples. Thus, the WO3/Au based PEC sensor had active effect on solving some tough issues, such as complicated operation and rigorous measurement conditions, in the detection of ultra-micro Hg2+." @default.
- W2883334360 created "2018-08-03" @default.
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- W2883334360 date "2018-11-01" @default.
- W2883334360 modified "2023-10-05" @default.
- W2883334360 title "Reversible redox mechanism based synthesis of plasmonic WO3/Au photocatalyst for selective and sensitive detection of ultra-micro Hg2+" @default.
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- W2883334360 doi "https://doi.org/10.1016/j.snb.2018.07.070" @default.
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