Highly efficient solar-absorber composite material based on tetrapyridylporphyrin for water evaporation and thermoelectric power generation

Abstract

Photothermal conversion materials based on tetrapyridylporphyrin (TPyP) were studied and were found to possess a polypyrrole macrocyclic framework (18π electrons), which makes them exhibit strong absorption in the 300–800 nm region and high photothermal conversion.

PDI‐Based Organic Small Molecule Regulated by Inter/Intramolecular Interactions for Efficient Solar Vapor Generation

“…Obviously, the evaporation rates in this work surpass those of organic small moleculesbased evaporators reported previously under 1 sun illumination (Figure 5f and Table S2, Supporting Information). [9][10][11][12][13][14][15][16][17][18][19] As 3D evaporators, the evaporation rates of designed hydrogels are also comparable to that of reported 3D evaporators under an evaluation criteria based on the relationship between evaporation area index and evaporation rate (Figure S33, Supporting Information). The favorable water evaporation performance of PPH can be attributed to the following four characteristics.…”

“…Strategies, such as regulation of molecular stacking, enhancement of intramolecular charge transfer, introducing intramolecular motion and free radicals, have been employed to narrow the band gap, thereby maximizing photothermal conversion efficiency. [10][11][12][13][14][15][16][17][18][19] Despite these efforts, the number of available organic small molecules for solar water evaporation remains limited. Additionally, most of these evaporators lack subtle design, resulting in unsatisfactory water evaporation rates (<1.55 kg m −2 h −1 under 1 kW m −2 ), which are lower than recently reported evaporation rates.…”

Solar-driven seawater desalinationviaplasmonic hybrid MOF/polymer and its antibacterial activity

“…The characteristics of the PU foam are important for water supply from the porous surface with low heat loss to bulk water for solar evaporation. [79][80][81] MIL-125 features a spherical shape with a smooth surface. From the SEM images, it can be seen that GO and PANI have a sheet-like shape.…”

Review of the progress of solar-driven interfacial water evaporation (SIWE) toward a practical approach

“…67 Recently, Zhang et al presented a highly effective solar-absorber composite material based on tetrapyridylporphyrin, which produced thermoelectric power at a rate of about 60 mV and water evaporation at a rate of ∼0.69 kg m −2 h −1 under 1 kW m −2 of solar radiation. 68 Similar to this, integrated cellulose-based composites, 69 novel photothermal materials based on the combination of ZrO 2 nanoparticles (NPs) with Ni-doped carbon quantum dots (Ni@CQDs) and multi-walled carbon nanotubes (MWCNTs) coated on a melamine foam (MF) surface, 70 composite hydrogel (GO/SA PAM-PVA hydrogel), 71 and porous reduced graphene-agarose spherical composite 72 -based solar absorbers were reported with excellent evaporation efficiency and advanced functionalities. However, due to the complex nature and circuitous synthesis, the stability and scalability of these photothermal materials remain challenging in their successful functioning in future investigations.…”