Gold nanoparticle and carbon dot coated SnO₂ nanocomposite with high photo-electronic catalytic activity for oxygen evolution reaction

Abstract

Here, we have reported the design, synthesis and catalytic properties of a gold nanoparticle/carbon dot/SnO2 nanocomposite photo-electronic catalyst for oxygen evolution reaction.

Regulation Mechanisms of Carbon Dots in the Development of Lettuce and Tomato

“…The results showed that the electron transfer rate (ETR) of lettuce leaves treated with CDs was higher than that of lettuce leaves treated without CDs (Figure b). CDs, as excellent electron acceptors and donators, can promote the transport of electrons and enhance activity . Consistent with the photosystem results, the organic carbon content (Table ), the yields (Figure a), and the nutritional qualities (Figure h–j) of the edible parts were improved in the mature lettuces treated with CDs.…”

“…CDs, as excellent electron acceptors and donators, can promote the transport of electrons and enhance activity. 33 Consistent with the photosystem results, the organic carbon content (Table 1), the yields (Figure 4a), and the nutritional qualities (Figure 4h−j) of the edible parts were improved in the mature lettuces treated with CDs. Thus, we hypothesized that CDs could enhance the photosystem I (PSI) activity to promote plant photosynthesis, enhance yield, and improve the nutritional value of plants.…”

Investigation of Regeneration Kinetics of a Carbon-Dot-Sensitized Metal Oxide Semiconductor with Scanning Electrochemical Microscopy

“…In the experiments, CDs were fabricated by electrochemical etching of graphite rods. The preparation processes have been introduced in our previous works in detail. , TiO 2 nanowire arrays deposited on the FTO glass substrates were grown by a hydrothermal method. The detailed strategy has been given elsewhere .…”

Preparation of polymer gold nanoparticle composites with tunable plasmon coupling and their application as SERS substrates

“…41 Yet while precise control can be gained by lithographically patterning on surfaces, 35 it is significantly more challenging to achieve this at the surface of dispersed support particles. Previous attempts to control the extent of AuNP coverage at a substrate surface have exploited the ratio of AuNP to the support NP, 14,42 and also recognised the role of electrostatic repulsion in limiting the overall loading. 19,43 In particular, polymer based materials have proven to be versatile substrates for the preparation of SERS nanocomposites.…”