Dual‐Mode Controlled Self‐Assembly of TiO₂ Nanoparticles Through a Cucurbit[8]uril‐Enhanced Radical Cation Dimerization Interaction

Abstract

The realization of controllable multicomponent selfassembly through reversible supramolecular interactions is ac hallenging goal, and is an important strategy for the fabrication of switchablen anomaterials.H erein we showt hat the self-assembly of TiO 2 nanoparticles (NP) functionalized with methyl viologen can be controlled both by light irradiation and chemical reduction through cucurbit[8]uril-enhanced radical cation dimerization interactions.M oreover,t he controlled assembly and disassembly of this system are accompanied by switchable photocatalytic activity of the TiO 2 NPs, which shows potential application as an ovel smart and recyclable photocatalyst.

Efficient Conjugated Polymer–Methyl Viologen Electron Transfer System for Controlled Photo-Driven Hydrogen Evolution

“…Our previous work showed that the controllably antibacterial activity of CPs could be realized by host−guest interaction of cucurbit [7]uril (CB [7]) and amantadine (AD), 34 also photocatalytic activity could be controlled by the assembly and disassembly of cucurbit [8]uril (CB [8]) and MV 2+ anchored on the titanium dioxide (TiO 2 ) nanoparticles. 35 The supramolecular assembly and dis-assembly processes of MV 2+ and cucurbit [8]uril (CB [8]) was further used to reversibly "turn-on" and "turnoff" hydrogen generation of the polymer system.…”

A new potassium‐based coordination polymer with hydrogen bonding and zigzag metallophilic interactions

“…Self‐assembly of supramolecular polymers is a powerful tool for producing functional materials that combine several properties and may respond to external conditions . Recently, the construction of coordination supramolecular or coordination polymers has emerged as a powerful and versatile strategy for engineering metallo‐polymers .…”