Synthesis of Bi–Bi 2 O 3 /C hybrid nanocomposite as a high performance photocatalyst

Fabrication of Highly Stable Metal Oxide Hollow Nanospheres and Their Catalytic Activity toward 4-Nitrophenol Reduction

“…Recently, we have prepared a series of metal/metal oxide NPs/carbon nanocomposites via a molten salt–calcination process. − In this work, highly stable metal oxides HNSs@C were fabricated from metal NPs/carbon nanocomposite based on the nanoscale Kirkendall effect. First, Cu/C, Ni/C, and CuNi alloy/C nanocomposites were prepared with a molten salt–calcination process.…”

Size-controllable synthesis of Bi/Bi2O3heterojunction nanoparticles using pulsed Nd:YAG laser deposition and metal–semiconductor-heterojunction-assisted photoluminescence

“…There are a variety of metal/metal-oxide heterojunction nanostructures that have attracted scientific attention because of their unique and significant properties. 1,2 Bi/Bi 2 O 3 is one of the most popular metal/metal-oxide heterojunction nanostructures, and has been used in many applications, such as for hydrogen generation, 3 oxygen sensing, 4 photocatalysis, 5,6 superhydrophobicity, 7 and nanomechanics. 8 In addition to Bi 2 O 3 , bismuth oxides have varying chemical forms, including Bi 2 O 4 , 9,10 Bi 4 O 7 , 9 and Bi 2 O 2.33 .…”

“…Monoclinic α-Bi 2 O 3 is a p-type semiconductor with a bandgap of ∼2.8 eV, [16][17][18] while tetragonal β-Bi 2 O 3 is an n-type semiconductor with a bandgap of ∼2.5 eV. 18 Therefore, they can be designed for applications in heterojunctions [3][4][5][6][7][8][9][10][11][12] and opto-electronics. [13][14][15][16][17][18] Here, we discuss the metal-semiconductor-heterojunction-assisted photoluminescence (PL) emission mechanism for the Bi/Bi 2 O 3 heterojunction nanoparticles.…”

New application of resin macrospheres: preparation of Bi2O3/C photocatalysts from an inexpensive organic carbon source and their application in dye wastewater treatment

“…4,5 Carbon materials have been widely used in photocatalytic composites in recent years due to their good electrical conductivity. 11 Numerous studies have shown that the composite photocatalyst constructed using porous carbon, graphene, carbon nanotubes and other carbon materials with Bi 2 O 3 can effectively reduce the band gap, promote the separation of holes and photogenerated electrons, and improve the specific surface area of the material, thus effectively improving the photocatalytic performance of the composite. [12][13][14] However, carbon nanotubes, 15 graphene, 16,17 and other carbon materials currently used in the field of photocatalysis have high costs and are difficult to apply in practice.…”