Laser and pulse radiolytically induced colloidal gold formation in water and in water-in-oil microemulsions

Novel synthesis of Au nanoparticles using fluorescent carbon nitride dots as photocatalyst

“…To confirm the catalytic effect of CNDs in synthesizing AuNPs, control experiments were conducted by the UV irradiation of an equal amount of HAuCl 4 in aqueous solution of ethanol for 1 h, in the absence of CNDs. The solution color changed from clear light yellow to colorless due to the photoinduced reduction of Au 3+ to Au + [41]. However, no AuNPs were obtained.…”

Preparation of nanoparticles of silver halides, superconductors and magnetic materials using water-in-oil microemulsions as nano-reactors

“…Colloidal gold and silver particles have potential applications as condensers for electron storage in artificial photosynthesis. This has led to studies by Kurihara et al [60] on laser and pulse radiolytically induced colloidal gold formation in w/o microemulsions. Colloidal gold and silver particles have also been synthesized by reduction of corresponding metal salts in water-in-oil microemulsions using sodium borohydride [61,62].…”

Photovoltage and Photocatalyzed Growth in Citrate-Stabilized Colloidal Silver Nanocrystals

“…12 Electron-transfer photochemistry was reported in the early colloidal SERS literature; spectra were observed to change as they were being acquired. 13,14 Furthermore, studies have shown that high-intensity visible laser irradiation can cause the formation of silver and gold nanoparticles both in solution 15 and on surfaces. 16,17 More recently, Maillard et al reported low light intensity photocatalytic surface reduction of aqueous silver ions in the plasmon near-field, leading to particle growth.…”