Introducing the novel composite photocatalysts to boost the performance of hydrogen (H2) production

Efficient Harvesting of >1000 nm Photons to Hydrogen via Plasmon-Driven Si–H Activation in Water

“…This technology utilizes a photocatalyst to convert and store the energy of sunlight as readily usable fuels such as hydrogen. Significant progress in the development of photocatalysts enabled superior utilization of UV and visible wavelengths of sunlight. − However, efficient utilization of the near-infrared (NIR) portion, which contains approximately 50% of the energy of the total sunlight reaching earth’s surface, remains a challenge as most commonly used photosensitizers, including organic dyes, polymers, and most semiconductors, do not have significant absorption in the NIR wavelengths. ,− Although some low-band-gap semiconductors and metal nanoparticles absorb NIR wavelengths, the energies of the photons, particularly those belonging to the NIR-II spectral range, and consequently the energies of the charge carriers generated after light absorption are not high enough to drive water splitting or C–H or N–H activation reactions. ,− It is therefore imperative that an efficient NIR photon-to-hydrogen production strategy should involve a chemical process that produces hydrogen but requires less activation energy. Hydrolytic Si–H activation could be an interesting process in this context as the activation of the Si–H bond requires less energy compared to the C–H bond .…”

Improving the Performance of Photocatalytic Hydrogen Production through Adjusting the Size of Defective Quantum Dots Co‐Catalyst Affected by Intramolecular Steric Hindrance on Thermal Stability of Functional Groups

“…Hydrogen energy is considered an excellent alternative to fossil fuels due to its high energy density and zero carbon emissions. Since photocatalytic hydrogen production (PHP) may be the ultimate solution for the future energy crisis and environmental pollution, [ 1 ] the development of stable, efficient, and cheap photocatalyst has attracted the continuous attention of researchers. After Fujishima and Honda first discovered TiO 2 photocatalyst, [ 2 ] a variety of photocatalysts with appropriate electronic bandgap, band edge, or active exposure point had been developed, such as CdS, [ 3 ] MoS 2 , [ 4 ] g‐C 3 N 4 , [ 5 ] ZnS, [ 6 ] Zn 0.5 Cd 0.5 S, [ 7 ] graphene, [ 8 ] and so on.…”

Effective Adsorption and Removal of Doxorubicin from Aqueous Solutions Using Mesostructured Silica Nanospheres: Box–Behnken Design Optimization and Adsorption Performance Evaluation

“…The homogeneous adsorption energy onto the adsorbent surface is accepted by the Langmuir isotherm model. It is based on the hypothesis that monolayer adsorption could happen on a surface that is even, has a fixed number of similar sites, and has little to no interaction between the molecules that are adsorbed. − Based on the surface-supporting sites with varying affinities or the adsorption of heterogeneous surfaces, an empirical equation known as the Freundlich model is developed. The stronger binding sites are thought to be used initially, and as site occupancy increases, the strength of the binding weakens.…”