Layered Hydroxide–Porphyrin Hybrid Materials: Synthesis, Structure, and Properties

Abstract

Keywords: Layered compounds / Intercalations / Porphyrinoids / Phthalocyanines / Singlet oxygenLayered hydroxide-porphyrin hybrids are attracting attention on account of their possible photophysical, photochemical, catalytic, and sensing applications. In comparison to free porphyrin and phthalocyanine molecules, the hybrids possess several potential advantages such as improved thermal and chemical stability, reduction of aggregation, tuning by layered hydroxide composition, and arrangement in transparent films. This review illustrates recent advances in the

AIEgens‐Functionalized Inorganic‐Organic Hybrid Materials: Fabrications and Applications

“…The intercalating guests will form ionic bonding with the inorganic framework through electrostatic interactions, which may enable the hybrid materials with more excellent performance. α‐Zirconium phosphate (Zr(HPO 4 ) 2 ‐H 2 O, abbreviated as α‐ZrP), layered double hydroxides (LDHs), and montmorillonite (MMT) are typical layered materials, which have a wide range of applications, such as storage, adsorption, separation processes, catalysis, and delivery of biological molecules …”

“…α-Zirconium phosphate (Zr(HPO 4 ) 2 -H 2 O, abbreviated as α-ZrP), layered double hydroxides (LDHs), and montmorillonite (MMT) are typical layered materials, which have a wide range of applications, such as storage, adsorption, separation processes, catalysis, and delivery of biological molecules. [66][67][68][69] α-ZrP has good cation-exchange capacity, which can be used to exchange a broad range of guest molecules, such as metal ions, macromolecules, with hydrogen ions. [70,71] Our group successfully intercalated quaternary tetraphenylethene (TPEN) cation with approximately 20.4 Å into α-ZrP nanosheets by an indirect intercalation method (Figure 4a).…”

Design of porphyrin-based conjugated microporous polymers with enhanced singlet oxygen productivity

“…This is difficult to achieve in amorphous materials such as silica-based composites or nanowires. For these reasons, crystalline materials with an organized arrangement of porphyrin units have been extensively investigated, such as layered metal hydroxides [33][34][35] and metal-organic frameworks (MOFs); [36][37][38] however, these materials oen possess limited chemical stability in aqueous environments. CMPs represent a unique combination of the stability of the polymeric structures bonded by C-C bonds with added structural variability and control.…”

Encapsulation of palladium porphyrin photosensitizer in layered metal oxide nanoparticles for photodynamic therapy against skin melanoma

“…The UV–vis spectra of LDH–PdTCPP nanohybrids (figure 5(A-b)) were significantly different from the spectra of the PdTCPP solutions (figure 5(A-a)). In comparison with the sharp Soret band of the spectrum in the PdTCPP solution, the intercalation of PdTCPP into LDH resulted in a broadening Soret band with a maximum absorbance at 412 nm and a Q band that has red shifted about 2 nm [55]. These results indicate the electrostatic coupling of the PdTCPP chromophores in between the layered matrices of the LDHs.…”