On the heterostructured photocatalysts Ag3VO4/g-C3N4 with enhanced visible light photocatalytic activity

Construction of stable Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrids with enhanced visible-light photocatalysis

“…Nevertheless, in the modification of Ta 3 N 5 system, it is still of great interest to find more appropriate compounds to further enhance the photocatalytic performance and stability of Ta 3 N 5 . 5 Recently, a metal-free, graphite-like carbon nitride (g-C 3 N 4 ) has been extensively employed in environmental applications since Wang et al first reported its photocatalytic property under visible light irradiation for hydrogen or oxygen production by water splitting in 2009 [7,23,24]. This carbon nitride is thermally stable and has a narrow band gap of ~2.7 eV owing to the À-conjugated graphitic planes consisted of the sp 2 hybridization of the carbon and nitrogen, so it responds to visible light with wavelengths up to 460 nm [24][25][26].…”

“…Material scientists have devoted their efforts to improve the photocatalytic activity of g-C 3 N 4 under visible light irradiation by coupling g-C 3 N 4 with other materials, in that the planer conjugation structure of g-C 3 N 4 can furnish a scaffold to anchor various substrates [26]. A large number of C 3 N 4 -based composite photocatalysts such as C 3 N 4 -TiO 2 [28], C 3 N 4 -SnS 2 [25], Co 3 O 4 -g-C 3 N 4 [23], C 3 N 4 -Bi 2 WO 6 [29] and C 3 N 4 -SrTiO 3 [30], etc have thence been synthesized. These works demonstrated the significantly enhanced photocatalytic activity of the g-C 3 N 4 by forming composite structures.…”

Facile Preparation of AgI/Bi2MoO6 Heterostructured Photocatalysts with Enhanced Photocatalytic Activity

“…This has been confirmed in other reports. [14,23,25] The microstructure of the AgI/Bi 2 MoO 6 hierarchical nanocomposites was further examined by transmission electron microscopy (TEM). The low-magnification TEM image of 0.2AgI/ Bi 2 MoO 6 is shown in Figure 3A.…”

“…The strategy facilitates the separation of photogenerated electrons and holes through charge transfer between the semiconductors. [4,5] In recent years, some new heterostructured photocatalysts with high visible-light response have been designed and developed, for example, Bi-based, [6][7][8][9] Ag-based, [10][11][12] and g-C 3 N 4 -based [13][14][15] composite catalysts have attracted great attention. Bi 2 MoO 6 (BMO) is an Aurivilliusphase perovskite oxide that consists of [Bi 2 O 2 ] 2+ layers interleaved by double slabs of MoO 4 2-.…”

Improving g-C3N4 photocatalysis for NOx removal by Ag nanoparticles decoration

“…Moreover, construction of metal-semiconductor composites by combing noble metal nanoparticles with semiconductors is also a promising method [24][25][26][27][28][29][30]. The Ag@AgCl, Au/TiO 2 , CdS/Au composites have been demonstrated to be efficient visible light photocatalysts mainly due to the increased visible light absorption caused by the surface plasmon resonance of these noble metals and the efficient transfer of photo-induced charges [31][32][33].…”