An emerging research topic is the harvesting of abundant and renewable sunlight in energy production and environmental remediation. Indeed, research on solar-driven heterogeneous photocatalysis through surface plasmon resonance (SPR) has seen rapid growth and potentially opens a technologically promising avenue that can benefit the sustainable development of global energy and the environment. The strong interaction between light and plasmonic nanostructures provides the energy transduction is needed for the photocatalytic conversion. Figure 1. Schematic diagram of hydrogen production from Ag/AgBr/g-C 3 N 4 [1] . Y. Che et al ., have recently found that the significant factors for enhancing properties were due to the synergistic effect between Ag/AgBr and g-C 3 N 4 , and the enhancement of light absorption by the SPR effect of Ag nanoparticles (NPs) [1] . Ag/AgBr NPs were firmly anchored on the surface of g-C 3 N 4 and their high dispersion was also responsible for the improved a...