Nature has given us great inspirations to fabricate high-performance materials with extremely exquisite structures. Presently, particles with a superhydrophobic surface are prepared through nature-inspired polyphenol chemistry. Briefly, adhering of a typical polyphenol (tannic acid, widely existed in tea, red wine, chocolate, etc.) is first conducted on titania particles to form a multifunctional coating, which is further in charge of reducing Ag+ into Ag nanoparticles/nanoclusters (NPs/NCs) and responsible for grafting 1H,1H,2H,2H-perfluorodecanethiol, thus forming a lotus-leaf-mimic surface structure. The chemical/topological structure and superhydrophobic property of the as-engineered surface are characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS), water contact angle measurements, and so on. On the basis of the hierarchical, superhydrophobic surface, the particles exhibit a fascinating capability to form liquid marble and show some possibility in the application of oil removal from water. After particles are in situ adhered onto melamine sponges, the acquired particle-functionalized sponge exhibits an absorption capacity of 73–175 times of its own weight for a series of oils/organic solvents and shows superior ease of recyclability, suggesting an impressive capability for treating oil spills.

The novel sensors based on TiO 2 nanotubes-supported MS (TiO 2 @MS, M = Cd, Zn) are synthesized via a simple wet chemical method at room temperature. The products are characterized with transmission electron microscopy (TEM), X-ray diffraction (XRD), and photoluminescence spectrum (PL). Their optical and morphological properties indicate the interaction between the TiO 2 nanotube and MS nanoparticle. The gas-sensing properties of the obtained samples are studied. Sensors based on the TiO 2 @MS core/shell heterostructures all show improved gas-sensing properties. The results reveal that the improved performance of the nanocomposites strongly depends on the specific interaction between MS and support.

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China Pingmei Shenma Energy and Chemical Group Nylon Chemical Company, Pingdingshan 467013)Abstract The equilibrium reaction of 3-pentenenitrile was carried out in the system containing Ni(0), P-ligand and anhydrous ZnCl 2 . The equilibrium state of 3-pentenenitrile was affected by factors such as reaction temperatures and different ligands, which were investigated. The FTIR-ATR was used to monitor the reaction process of 3-pentenenitrile turning into 2-methylglutaronitrile and adiponitrile in absence of HCN and the possible reaction mechanism was proposed.