The Nature of Interactions and UV-Induced Response within α-Zirconium Phosphate Intercalation Compounds with Azobenzenes

Abstract

Azobenzenes immobilization on a solid support enables the usage of their trans-cis isomerization ability for preparation of functional materials. The behavior of azobenzenes in the interlayer space of α-zirconium phosphate (ZrP) upon the UV–Vis irradiation was investigated. Two experimental approaches were performed: (1) co-intercalation of benzylalkylammonium surfactants and azobenzene in the interlayers of ZrP (ZBCnA), and (2) intercalation of p-aminoazobenzene (ZpA). The materials were characterized with XRD, FTIR, UV–Vis, CHN analysis, and the molecular modeling. The molecules in ZBCnA samples were sparsely packed and held by weak hydrophobic interactions. Conversely, the molecules in ZpA sample were strongly H-bonded to the ZrP, well-ordered, and densely packed. These structural features determined the samples’ photoresponsive behavior. Low density of molecules in the ZBCnA samples, allowed the effective, fast, and reversible isomerization of azobenzene. Whereas the ZpA sample did not react to the UV irradiation because of the steric hindrance of tightly packed molecules.

Embedding Alkyldiamine into Layered α‐Titanium Phosphate via Direct‐Ion Exchange and its Application in EuIII Removal from Water

“…The IR spectra of α‐TiP and its intercalated compounds are shown in Figure . It shows that the vibration peak associated with the P–O–H bond of α‐TiP at 1250 cm –1 is very apparent. However, the absorption peak associated with P–O–H significantly faded when α‐TiP was embedded with an organic diamine.…”

Polymer functional coatings modified by ZrP‐based composites: Preparation and applications on marine concrete

“…α-ZrP derivatives and guest materials have been developing rapidly and are used in important branches of host-guest chemistry, catalysis, pharmaceuticals, and anticorrosion applications. [36][37][38] However, their traditional preparation process generally requires multi-step reactions. Thus, a simpler route to prepare multifunctional and high-performance α-ZrP composite materials is still required.…”

“…α‐ZrP is an ideal two‐dimensional material for intercalation‐chemistry research and is suitable for the preparation of polymeric nanocomposites. α‐ZrP derivatives and guest materials have been developing rapidly and are used in important branches of host–guest chemistry, catalysis, pharmaceuticals, and anticorrosion applications 36–38 . However, their traditional preparation process generally requires multi‐step reactions.…”