Visible light-induced water splitting in an aqueous suspension of a plasmonic Au/TiO₂ photocatalyst with metal co-catalysts

Abstract

We found that plasmonic Au particles on titanium(iv) oxide (TiO2) act as a visible-light-driven photocatalyst for overall water splitting free from any additives.

Same titanium glycolate precursor but different products: successful synthesis of twinned anatase TiO2 nanocrystals with excellent solar photocatalytic hydrogen evolution capability

“…Accordingly, a lower PL intensity of a semiconductor indicates faster separation and better transfer efficiency of photoinduced electron-hole pairs in the photocatalysis system, and therefore displays a higher photocatalytic capability. [42][43][44] As can be seen in Fig. 10, the PL intensity of twinned anatase TiO 2 was much lower than that of both anatase and brookite TiO 2 .…”

Gold‐Catalyzed Cross‐Coupling Reactions: An Overview of Design Strategies, Mechanistic Studies, and Applications

“…[26][27][28][29][30][31] It has been predicted that in the near future, the scope of heterogeneous gold catalysis will be expanded for the large-scale synthesis of bulk and fine chemicals, pharmaceuticals, and polymers, and for pollutant degradation. [53][54][55][56] Compared with the advances in heterogeneous goldc atalysis, the field of homogeneous gold catalysis startedt og row only in the first decade of the 21st century.O ver the past two decades, homogeneousg old catalysis has emerged as an eminent synthetic methodology.T he progress in the syntheses and applications of Au catalysts, related reaction mechanisms, and the future prospects of traditional Au I -catalyzed reactions have been reviewed by the groups of Hashmi, [57][58][59][60][61][62] Fürstner, [63,64] To ste, [65] Echavarren, [66][67][68] and others. [40][41][42] Also, structurally well-defined and capped gold clusters have been used as tools to design model catalytic systems and to gain amechanistic understanding of the heterogeneous catalysis.…”

Water splitting catalyzed by titanium dioxide decorated with plasmonic nanoparticles

“…Moskovits's group controlled the orientation and anisotropic growth of TiO 2 onto Au nanorods using surface-capping agents as soft template and obtained TiO 2 -tipped PNPs exhibiting enhanced hydrogen production compared to counterpart core-shell structures. Addition of a co-catalyst on Au@TiO 2 for lightdriven water splitting has also been investigated by Tanaka's group [48]. The Ni-modified Au@TiO 2 catalyst proposed absorbed light via Au NPs, hot electrons were then injected in TiO 2 CB and reduced protons to form hydrogen at the surface of NiOx NPs.…”