DNA nanostructures are ideal templates for bottom-up assembly and fabrication of nanomaterials. Their structures can be tailored for a given application and modified with pinpoint precision. They offer the best of top down and bottom up assembly. We highlight recent progress in DNA nanotechnology and in particular advances that are relevant to the materials chemistry community. Examples of using DNA nanostructure to address materials chemistry challenges are highlighted.

Adsorption of molecules from the ambient environment significantly changes the optical, electrical, electrochemical, and tribological properties of 2D materials.

Both doping and compositing in TiO 2 are exceedingly effective strategies to overcome the compound's shortcomings, such as invalid visible-light response and enormous recombination of photogenerated carriers. Herein, a convenient and costeffective route has been put forward to in situ synthesize nanolayered heterostructure based on N-doped TiO 2 nanoparticles and Ndoped carbon (N-TiO 2 /NC) using 2D layered N-MXene (N−Ti 3 C 2 T x ) as the template. The as-obtained N-TiO 2 /NC nanocomposite displays greatly enhanced visible light absorption property, superior carrier separation and transport ability. As a result, the nanolayered N-TiO 2 /NC heterostructure exhibits a satisfactory H 2 evolution rate from water-splitting (102.6 μmol g −1 h −1 ) under visible-light without any additional cocatalyst. The study provides a new strategy for the synthesis of defective nanoheterostructure and expands the applications of MXene family.

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In this upper-level undergraduate experiment, students utilize micro-Raman spectroscopy to characterize graphene prepared by mechanical exfoliation and chemical vapor deposition (CVD). The mechanically exfoliated samples are prepared by the students while CVD graphene can be purchased or obtained through outside sources. Owing to the intense Raman signal of a few-layer graphene on a 300 nm thermal oxide silicon wafer, students can learn how different instrumental parameters used in Raman microscopy affect the quality of the measurement. This experiment gives students a first-hand experience in the production of a two-dimensional nanomaterial and exposes them to the utility of micro-Raman spectroscopy as a characterization technique.

A novel particle electrode (PE) Pd-Fe/Ni foam was synthesized and used for Dimetridazole (DMZ) degradation in the three-dimensional electrode (3D) system. Results showed that Pd-Fe/Ni foam exhibited excellent electrocatalytic activity and satisfactory electrocatalytic stability. Inducing Pd and Fe species could not only decrease the resistance and accelerate the electron transfer, but also cause synergistic

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