Zinc tetraamino-phthalocyanine (ZnTAPc) supported by multi-walled carbon nanotubes (MWCNTs) hybrid materials were successfully fabricated by the method of chemical grafting and their photocatalysis behavior was reported. The as-prepared products were thoroughly characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), UV-vis spectra, thermogravimetric analysis (TGA) and FT-IR spectra. The results showed that the ZnTAPc nanostructures were not only grown on the multi-walled carbon nanotubes but also uniformly distributed without aggregation. The photocatalytic studies revealed that the ZnTAPc-MWCNTs hybrid materials exhibited high absorption capacity and simultaneously excellent visible-light-driven photocatalytic performance for rhodamine B (RB) under visible-light irradiation. A possible mechanism for the photodegradation of rhodamine B (RB) was suggested. The hybrid materials provide great potential as active photocatalysts for degrading organic pollutions.

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Micro-structures are formed by self-assembly of polyurethanepolyelectrolyte colloids Information changes from one pattern to another within 3 s when exposed to waterThe hydrochromic films are mechanically robust in both dry and wet state

Fingerprints possess wide applications in personal identification, tactile perception, access control, and anti‐counterfeiting. However, latent fingerprints are usually left on touched surfaces, leading to the leakage of personal information. Furthermore, tactile perception greatly decreases when fingerprints are covered by gloves. Customized fingerprints are developed to solve these issues, but it is a challenge to develop fingerprints with various customized patterns using traditional techniques due to their requiring special templates, materials, or instruments. Inspired by ripples on the lake, blowing air is used to generate surface waves on a colloidal polyelectrolyte complex, leading to vertical stratification and the accumulation of particles near the top of the film layer. As water rapidly evaporates, the viscosity of these particles significantly increases and the wave is solidified, forming fingerprint patterns. These customized fingerprints integrate functions of grasping objects, personal identification without leaving latent fingerprints and tactile perception enhancement, which can be applied in information security, anti‐counterfeiting, tactile sensors, and biological engineering.

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