Nanosized Au Particles as an Efficient Cocatalyst for Photocatalytic Overall Water Splitting

Abstract

The effect of the photodeposition of gold particles onto several photocatalysts on the photocatalytic activities was studied. The photocatalytic activities of K 4 Nb 6 O 17 , Sr 2 Nb 2 O 7 , KTaO 3 NaTaO 3 , and NaTaO 3 doped with La for water splitting were improved when gold particles were deposited. The latter were nanoparticles, consistent with their surface plasmon absorption. The nanosized gold particle functioned as an efficient cocatalyst for photocatalytic water splitting by assisting H 2 evolution.

Hydrogen Production by Photoreforming of Renewable Substrates

“…50% quantum yield at 330 nm [123][124][125]. The addition of various cocatalysts, such as NiO, Au, Pt, and Cs [126][127][128][129][130][131] improved H 2 productivity even from pure water.…”

Preparation of Dihydroxy Naphthalene/TiO2Complex via Surface Modification and Their Photocatalytic H2Production Performances Under Visible Light

“…It is known that CH 3 OH acts as an effective sacrificial reagent by scavenging O 2 or holes, limiting the reverse H 2 + 1/2O 2 → H 2 O reaction, and increasing charge separation, 40 as shown in Eq. (1).…”

Extractive Spectrophotometric Determination of Pd(II) with Sodium Salt of Hexamethyleneiminecarbodithioate

“…Using this property a number of extractive spectrophotometric methods of palladium determination with various reagents such as di-2-pyridyl-methanone-2-(5-nitro)pyridyl hydrazine [11], pyridine-2-acetaldehyde salicyloyl hydrazine [12], di-2-pyridyl ketonebenzoyl hydrazine [13], Isonitroso benzoylacetone [4], o-butyldithiocarbonate [15], pyridoxal-4-phenyl-3-thiosemicarbazone [16], Benzyloxy benzaldehyde thiosemicarbazone (BBTSC) [17], N-ethyl-3-carbazolecarbaxaledehydethiosemicarbazone [18] and α-benzoin oxime (ABO) [19], N,N,N',N'-tetra(2-ethylhexyl) thiodiglycolamide (T(2EH)TDGA) [20].…”

“…It is well known that precious metals which possess special physical and chemical properties are important materials and have been applied widely in industry and technology recently [1][2][3][4][5]. Palladium has extensive applications in various fields like catalysis, pharmaceuticals, petroleum, electronics, jewelers etc.…”