3D macroporous CUPC/g-C₃N₄ heterostructured composites for highly efficient multifunctional solar evaporation

Abstract

Solar-driven interfacial evaporation is a promising technology for water recycling and purification. A sustainable solar evaporation material demands not only high photothermal conversion efficiency but also an ecofriendly fabrication process...

Poly(ionic liquid) composite oxygenated graphite carbon nitride for enhanced photocatalytic and synergistic bacteriostasis

“…In addition, the PBF‐OCN showed a blue shift compared with OCN, which could be attributed to the fact that PBF‐OCN contained multi‐layer heterojunction structure, and this complex structure caused the fluorescence emission intensity of PBF‐OCN to be substantially reduced in the wavelength band above 400 nm. A similar blue shift phenomenon was observed in the studies of Zhang et al and Chu et al 64,65 In general, the enhanced visible light absorption and reduced electron–hole recombination would endow PBF‐OCN with higher photocatalytic activity.…”

Efficient Solar Steam Generation by Multiscale Photothermal Structures Derived from Cactus Stems

“…The photothermal material is the core component of SSG devices, which is supposed to sequentially absorb sunlight, convert solar energy into heat, and evaporate water into steam. 27−30 The present photothermal materials are plasmonic materials, 31 semi-conductor materials, 32 conjugated polymers, 33 and carbon materials, of which carbon materials have actually been regarded as the potential candidate for practical applications of SSG devices due to their advantages such as wide light absorption window, excellent chemical and structural stability, facile production process, and cheap price. 9,34−36 Fundamentally, carbon materials possess a substantial quantity of π electrons, which can achieve the π → π* transition under the excitation of suitable photon energies; as a result of the electron−phonon coupling, these excited electrons then release heat during deexcitation, which leads to an increase of temperature for the material.…”

2D/2D Cs0.32WO3/CuS Nano‐Heterojunctions for Simultaneous High‐Efficiency Solar Desalination, Photocatalytic Decontamination, and Electricity Generation

“…Currently, various photothermal materials, including metals, semiconductors, carbon-based materials, and organic polymers have been explored. [18][19][20][21][22][23][24][25][26][27][28][29][30][31] Among them, semiconductor nanomaterials are particularly attractive in the field of solar thermal conversion because of their tunable energy band structure and diversified morphology. Semiconductors can absorb photons to produce electron-hole pairs when irradiated by sunlight with energy higher than their band gap.…”