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• W3209849602 abstract "Abstract Driven by solar power and derived electricity, ambient photo‐ and electrochemical nitrogen fixations are considered promising strategies to produce low‐concentration NH 3 /NH 4 + . Under the principles of doping and interface engineering, a Ag/PW 12 /Zr‐ m TiO 2 composite is fabricated in a one‐pot synthesis, where zirconium‐doped mesoporous TiO 2 is co‐decorated with silver nanoparticles (Ag NPs, optimal 1 wt%) and phosphotungstic acid (PW 12 , optimal 10 wt%). Enhanced nitrogen chemisorption is achieved owing to Zr‐doping, where the mesoporous structure of Zr‐ m TiO 2 favors nitrogen mass transfer. Ag NPs decoration leads to visible light absorption. At the interface, PW 12 and Ag NPs decelerate the recombination of photo‐generated charge carriers. A Z‐scheme mechanism is suggested for the hetero‐junction, and the surface plasmon resonance effect of Ag NPs is considered in the composite. Consequently, a NH 3 /NH 4 + production rate of 324.2 µ mol g cat −1 h −1 is achieved in the photo‐driven process, together with the structure‐reactivity relationship between transient photocurrent intensity and catalytic efficiency. Moreover, constructing Ag/PW 12 /Zr‐ m TiO 2 heterojunction introduces a plentitude of active sites for the electrochemical process, together with enhanced charge transfer efficiency at the interface. Hence, an excellent NH 3 /NH 4 + production rate of 55.0 µ g mg cat −1 h −1 is accomplished at −0.6 V vs RHE. The robustness and superior activity of Ag/PW 12 /Zr‐ m TiO 2 in both photo‐ and electro‐driven processes may offer an opportunity for effectively utilizing sunlight." @default.
• W3209849602 created "2021-11-08" @default.
• W3209849602 creator A5001685537 @default.
• W3209849602 creator A5005088488 @default.
• W3209849602 creator A5005435763 @default.
• W3209849602 creator A5012921567 @default.
• W3209849602 creator A5024505395 @default.
• W3209849602 creator A5048274839 @default.
• W3209849602 creator A5054410808 @default.
• W3209849602 creator A5054432773 @default.
• W3209849602 creator A5075965915 @default.
• W3209849602 date "2021-10-20" @default.
• W3209849602 modified "2023-10-04" @default.
• W3209849602 title "Fabricating Ag/PW₁₂/Zr‐<i>m</i>TiO₂ Composite via Doping and Interface Engineering: An Efficient Catalyst with Bifunctionality in Photo‐ and Electro‐Driven Nitrogen Reduction Reactions" @default.
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