Despite its high performance, practical implementation of the TiN-RuPt system faces challenges regarding the high cost of noble metals and the potential for particle sintering during long-term operation[8,9]. Future directions should explore non-metallic plasmonic antennas, such as alternative transition metal nitrides (ZrN, HfN) or carbides, to reduce capital costs and improve durability[10]. This work exemplifies how rational integration of plasmonic light‑harvesting units with tailored bimetallic active sites can drive multi‑step selective oxidations under mild, base‑free conditions. It provides a compelling blueprint for the design of solar‑driven catalytic systems for sustainable chemical synthesis and biomass valorization.