Enhanced ferroelectric and UV photocatalytic properties in a Bi4Ti3O12@ZnO core–shelled nanostructure

Electrospun Cr-doped Bi4Ti3O12/Bi2Ti2O7 heterostructure fibers with enhanced visible-light photocatalytic properties

“…29,30 But these synthesized Bi 4 Ti 3 O 12 bers show relatively low visible-light photocatalytic activity because of their intrinsic properties such as wide band gap (3.0 eV) and low capability for separation of photogenerated charge carriers. To date, although many excellent works have been devoted to enhance the photocatalytic efficiency of Bi 4 Ti 3 O 12 under visible-light irradiation such as doping with metals [31][32][33] and combining with another narrow band gap semiconductor, [34][35][36] the development of high-efficiency visible-light-driven Bi 4 Ti 3 O 12 photocatalysts is still in great demand.…”

Adsorption and Photocatalysis Performance of Bi₄Ti₃O₁₂ Nanoparticles Synthesized via a Polyacrylamide Gel Route

“…6) Due to its special layered crystal structure and electronic band structure, Bi 4 Ti 3 O 12 possesses unique physicochemical properties such as ferroelectricity, piezoelectricity, photoelectricity and photocatalytic activity. [6][7][8][9][10] In particular, since the discovery of the photocatalytic H 2 evolution in the methanol aqueous solution and photocatalytic degradation of methyl orange over Bi 4 Ti 3 O 12 , 6,11) Bi 4 Ti 3 O 12 has been extensively studied as a promising photocatalyst. 10,[12][13][14][15][16][17][18][19][20][21] The photocatalytic process is initiated by the irradiation of a semiconductor photocatalyst and the excitation of electrons from the valence band to the conduction band.…”

“…As a result, smallsized photocatalyst is expected to exhibit an enhanced photocatalytic activity. Various nano/micro-fabrication techniques have been widely used to fabricate Bi 4 Ti 3 O 12 nano/micro structures such as liquid chemical reaction, 10) hydrothermal process, 11,12) oxidant peroxide method, 13) solid-state reaction, 14) aqueous sol-gel method, 15) molten salt method, 16,17) electrospinning process, 18,19) sol-gel hydrothermal process, 20) sonochemical method, 21) Based on these methods, several promising morphologies such as hierarchical nanosheets, microplatelets, nanobelts and nano bers have been prepared. 12,14,16,17,19,20) However, further synthesis of small-sized Bi 4 Ti 3 O 12 nanoparticles via an alternative method is still indispensable.…”

Efficient photocatalyst based on ZnO nanorod arrays/p-type boron-doped-diamond heterojunction

“…Various types of heterostructured photocatalysts, such as ZnO-CdS, ZnO-ZnS and ZnO-Bi 4 Ti 3 O 12 have been widely investigated [10][11][12]. However, the recollection and reuse of those photocatalysts still limit the practical application [13].…”