The impact of the Au/Ag ratio on the photocatalytic activity of bimetallic alloy AuAg nanoparticle-decorated ZnO nanorods under UV irradiation

Ag Nanoparticles Decorated ZnO Nanorods as Multifunctional SERS Substrates for Ultrasensitive Detection and Catalytic Degradation of Rhodamine B

“…This is because the work function of ZnO (5.2 eV) is greater than that of Ag (4.26 eV), and when the two are combined, a Schottky barrier is formed at the Ag/ZnO interface. Schottky barriers effectively prevent the recombination of photogenerated electrons with holes, extending the lifetime of photogenerated electrons and improving the efficiency of photocatalysis [ 52 , 53 ]. It can be seen that ZnO/Ag composite material has good self-cleaning properties when used as a SERS substrate, facilitating the rapid degradation of organic pollutants and the reuse of the substrate.…”

Plant-Based Bimetallic Silver-Zinc Oxide Nanoparticles: A Comprehensive Perspective of Synthesis, Biomedical Applications, and Future Trends

“…Figure 5 demonstrates applications of Ag/ZnO alloy nanoparticles. Perhaps, this is due to its distinctive physiological and chemical nature like minimized size, the capability of bonding with biological molecules due to high reactivity, great constancy, and increased surface area-mass ratio, effortless generation and characterization, luminous extension actions, and their reduced toxicity to cells [ 59 , 78 – 81 ].…”

Dual functionality of surface plasmon resonance and barrier layer on the photosensing and optical nonlinearity of ZnO nanorod arrays

“…The synergetic architecture of noble metal-semiconductor heterostructures can promote high-output functionalities with improved optoelectronic properties for applications in energy harvesting, photocatalysis, photonic crystals, biological sensing, chemical and electrochemical sensing. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] The coupling of noble metal nanoparticles (NPs) with semiconductors can establish the exploitation of various photophysical processes. [1][2][3][4][5][6][7][8][9][10][11][12][13] Strong light interaction with plasmonic NPs can cause several interesting phenomena such as electric field enhancement, selective light absorption, and the generation of hot electron-hole pairs through the decay of localized surface plasmon resonance (LSPR) in the noble metal NP/semiconductor junctions.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] The coupling of noble metal nanoparticles (NPs) with semiconductors can establish the exploitation of various photophysical processes. [1][2][3][4][5][6][7][8][9][10][11][12][13] Strong light interaction with plasmonic NPs can cause several interesting phenomena such as electric field enhancement, selective light absorption, and the generation of hot electron-hole pairs through the decay of localized surface plasmon resonance (LSPR) in the noble metal NP/semiconductor junctions. 2,11,18 The LSPR-generated non-radiative hot electrons can overcome the Schottky barrier of the plasmonic NP-semiconductor junction and transfer into the conduction band (CB) of the adjacent semiconductor 2,4,19 via three different mechanisms:…”

“…Several studies have been devoted to elevating the photocatalytic performance of LSPR nanostructured systems to degrade standard dyes and pollutants under UV and visible light illumination. [5][6][7][8][9][10][11] Fauzia et al 6 investigated the photocatalytic performance of metalloid AuAg NP-decorated ZnO NRsA. The Au, Ag, and AuAg NPs act as electron sinks, preventing the recombination of electron-hole pairs; thus, more electrons and holes can contribute to the photodegradation activity.…”