Rational Design of S-Scheme Heterojunction toward Efficient Photocatalytic Cellulose Reforming for H and Formic Acid in Pure Water.

Photocatalytic cellulose reforming usually requires harsh conditions due to its sluggish kinetics. Here, a hollow structural S-scheme heterojunction of ZnSe and oxygen vacancy enriched TiO , namely, h-ZnSe/Pt@TiO , is designed and fabricated, with which the photocatalytic reforming of cellulose for H and formic acid is realized in pure water. H and formic acid productivity of 1858 and 372 µmol g h and a steady H evolution for 300 h are achieved with α-cellulose.

Two-Dimensional Ultrathin Graphic Carbon Nitrides with Extended π-Conjugation as Extraordinary Efficient Hydrogen Evolution Photocatalyst.

Construction of 2D graphic carbon nitrides (g-CN ) with wide visible light adsorption range and high charge separation efficiency concurrently is of great urgent demand and still very challenging for developing highly efficient photocatalysts for hydrogen evolution. To achieve this goal, a two-step pyrolytic strategy has been applied here to create ultrathin 2D g-CN with extended the π-conjugation. It is experimentally proven that the extension of π-conjugation in g-CN is not only beneficial to narrowing the bandgap, but also improving the charge separation efficiency of the g-CN .

Tuning the current rectification behavior of Rh-based molecular junctions by varying their supramolecular structures.

Molecular junctions with similar backbones, tunable chemical structures and controllable length are critical for the systematic study of the structure-functionality relationships of their charge transport behavior. Taking advantage of the feasibility and tunability of stepwise fabrication, we built series of asymmetric supramolecular SAMs on gold using Rh(OCCR) (Rh, R = CH, H, and F) as the building blocks and conjugated ,'-bidentate ligands (pyrazine (L), 4,4'-bipyridine (L) and 1,2-bis(4-pyridyl)ethene (L)) as the bridges. By varying the Rh units and bridging ligands, series of supramolecules with similar backbone and tunable chemical structures were assembled on gold.