Recently, a major breakthrough has been made in the photocatalytic modification technology of silica nanoparticles. By doping non-metallic elements and constructing heterojunction structures, the material has realized dual leaps in light response range and catalytic efficiency, providing a high-efficiency and low-cost solution for water pollution control, air purification and other fields.

Technological Innovation and Performance Breakthrough,Abandoning the traditional single-doping approach, this technology adopts a dual-modification strategy of non-metallic co-doping plus semiconductor heterojunction recombination, constructing efficient photogenerated carrier transmission channels in the pores and on the surface of silica nanoparticles. Tests show that the modified material can expand its light response range to the visible light region, with the degradation efficiency of organic pollutants increased by more than 60% compared with pure silica. Meanwhile, the material has excellent cycle stability—its catalytic activity remains above 90% of the initial level after 10 consecutive uses, solving the problem of easy deactivation of traditional photocatalytic materials.