Topological morphology conversion towards SnO₂/SiC hollow sphere nanochains with efficient photocatalytic hydrogen evolution

Abstract

Novel SnO2/SiC hollow sphere nanochains were synthesized by topological morphology conversion of SnO2@C core-shell nanochains through a vapour-solid reaction. Evaluation of the SnO2/SiC HSNCs for the generation of hydrogen revealed that they exhibit excellent catalytic activity and durability.

Efficient Degradation of Methylene Blue over Two‐Dimensional Au/TiO2 Nanosheet Films with Overlapped Light Harvesting Nanostructures

“…Since the discovery of hydrogen evolution by photoinduced water splitting over TiO 2 electrode [1], semiconductor-based photocatalysis has attracted great attention in the field of solar energy conversion and environment remediation [2][3][4][5][6][7][8][9], and considerable efforts have been dedicated to the design of various semiconductor photocatalysts with improved performance. TiO 2 -based semiconductors with good chemical stability and environmental-friendly features have received far more attention in the field of photocatalytic water splitting, reduction of CO 2 with H 2 O to form hydrocarbon fuels, and wastewater treatment by photodegradation of organic pollutants [10][11][12][13][14][15]. However, its utilization is negatively affected by the high recombination probability of photoexcited electronhole pairs and its relatively large band gap (Eg = 3.2 eV).…”

3C-SiC/ZnS heterostructured nanospheres with high photocatalytic activity and enhancement mechanism

“…As an important IV-IV non-metallic semiconductor, silicon carbide (SiC) nanocrystals (NCs) have attracted enormous attention because of its high excitation efficiency of electrons and holes under irradiation and widespread applications to biosensors, photocatalysis, and supercapacitors. [12][13][14] To enhance the photocatalytic performance, that is, efficient separation of photogenerated electrons and holes, some composite SiC catalysts such as SnO 2 /SiC hollow sphere nanochains, 15 cubic SiC (3C-SiC)/TiO 2 nanocomposites 16 have been developed. These catalysts can efficiently separate photoexcited electrons and holes and produce good photocatalytic activity by means of a heterostructure.…”

Modelling of electrical energy consumption in an electric arc furnace using artificial neural networks

“…5c shows a similar trend of increased electrical energy consumption when silicon content is in the middle zone (0.4%). Due to lower melting point of silicon (1420 C) [24], the main contribution in the increase of the specific electrical energy consumption has carbon content. The contour diagram in Fig.…”