Integrated patterned wettability surface for signal expression and efficient photodegradation of multiple water-soluble dyes

Abstract

An integrated patterned wettability surface was simply prepared for real-time detection of conductive/non-conductive liquids based on anisotropic wettability, while the signal from conductive liquids could be selectively output as a binary sequence signal. In addition, the p–n heterojunction formed by the hybridized photocatalytic particles significantly improved the photodegradation ability, and efficient degradation of a variety of water-soluble dyes (10 mg L⁻¹) could be achieved after 3 h of UV irradiation (MB, 93.8%; R6G, 89.6%).