Mass production of ZnxCd1−xS nanoparticles with enhanced visible light photocatalytic activity

Theory-Driven Heterojunction Photocatalyst Design with Continuously Adjustable Band Gap Materials

“…10 nm are imbedded quite well in the RGO sheets, which can be clearly seen from the wrinkled surface (Figure 4a). The reduction in size of Zn 0.5 Cd 0.5 S nanoparticle in heterojunction can be attributed to the effect of solution PH, 39 as well as the depositing S ions and in situ growth on the RGO surface during the reaction process. 54 This can be roughly assessed from their morphologies before (Figure S9) and after the formation of heterojunction.…”

“…In a typical procedure, 0.5 mmol of cadmium acetate, 0.5 mmol of zinc acetate and 4 mmol of thiourea are dissolved into 150 mL deionized water with magnetic stirring. 15 A certain amount of ammonium hydroxide is then added to the solution under stirring and kept at 95 °C for 3 h. 39 Finally, the precipitate is collected by centrifugation and washed several times with distilled water, dried in an oven at 70 °C for 12 h. The amount of ammonium hydroxide is 0, 0.3, 0.6, and 0.9 mL, and the resulting samples are labeled as ZCS and ZCS1, -2, and -3 respectively.…”

The role of dissolution in the synthesis of high-activity organic nanocatalysts in a wet chemical reaction

“…17 Given that the smooth surfaces of stable nanostructures can be roughened via dissolving, this may mean that more active sites can be exposed. 18 Although crystal dissolution has been deeply and widely investigated in theory, it has been rarely applied in the preparation of high-energy NCs to date due to the possible need for complicated manipulations or devices. Can we combine the nucleation and growth of NCs with their dissolution to achieve one-step syntheses of high-activity nanocatalysts by a simple WCR without CA?…”