Size-tunable fabrication of multifunctional Bi2O3 porous nanospheres for photocatalysis, bacteria inactivation and template-synthesis

Abstract

Multifunctional Bi2O3 porous nanospheres (PNs) with tunable size have been successfully synthesized via a facile solvothermal method. The obtained Bi2O3 porous nanospheres demonstrate outstanding performance in visible-light-driven photocatalysis for Cr(VI) and organic dye removal, inactivation of Gram-negative and Gram-positive bacteria, as well as template-synthesis for fabrication of bismuth-related hollow nanostructures.

Controllable fabrication of heterostructured Au/Bi2O3 with plasmon effect for efficient photodegradation of rhodamine 6G

“…Recently, bismuth-based compounds like (BiO) 2 CO 3 (BSC)and Bi 2 O 3 with remarkable properties have received considerable attention as potential candidates of photocatalysts [28][29][30][31][32][33][34][35][36]. Self-assembly of nanocrystals into complex or three-dimensional (3D) nanostructures has received much attention particularly for applications in energy, electronics, environment science and biomedical fields [37,38].…”

Ag-decorated Bi2O3 nanospheres with enhanced visible-light-driven photocatalytic activities for water treatment

“…1 For pathogenic microorganisms, although traditional chlorination, ozonation and UV disinfection are highly effective for their inactivation, they usually produce potential carcinogenic and mutagenic by-products or obvious resistance to UV irradiation. 22 However, Bi 2 O 3 nanospheres mainly exhibit intense absorption in the UV-light region, which remains a huge potential problem for promoting its photocatalytic ability via proper modication. [7][8][9][10] From the viewpoint of fully utilizing solar light, high-efficiency visible-light-response photocatalysts are signicantly important for the practical application of photocatalysis in environmental remediation.…”

Sucrose-templated nanoporous BiFeO3 for promising magnetically recoverable multifunctional environment-purifying applications: adsorption and photocatalysis

“…5,34 Treated as a potential photocatalyst, BFO possesses an appropriate band gap energy (~ 2.2eV), good chemical stability and intrinsic ferroelectric polarization that can accurately separate the photoinduced charge carriers. To overcome these problems, various BFO nanostructures such as nanoparticle, 5 nanofibers, 9 nanotubes, 10 and other Bi-based nanomaterials 31,33,[35][36] are reported and demonstrated not only to disrupt the 62nm spin structure for enhancing magnetic properties, but also to provide larger surface area and shorter charge-carrier diffusion length to enhance the photocatalytic activities. However, as mentioned above, BFO is anti-ferromagnetic which hinders its applications in recoverable photocatalysts.…”