Solution combustion synthesis of heterostructure bismuth titanate nanocomposites: Structural phases and its correlation with photocatalytic activity

Review on the preparation and performance improvement methods of bismuth photocatalyst materials

“…The construction of a heterojunction between several semiconductors has recently been published in detail as an alternate technique among the various explored strategies to enhance overall photocatalytic performance. Bhange et al 295 prepared Bi 2 O 3 /TiO 2 nanocomposites using a simple and economical solution combustion synthesis method. The type of fuel and its concentration have a significant impact on phase selectivity during the synthesis of bismuth titanates in solution combustion.…”

Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts

“…It was observed that the absorption edge of P-CeO 2 -TiO 2 showed a gradual red shift with increase in synthesis temperature from Construction of p-n heterojunctions has also been discussed in the literature for efficient photocatalytic activity. 350,351 Bhange et al 351 demonstrated TiO 2 heterojunction formation with p-type metal oxides such as Bi 2 O 3 via the SCS method to form Bi 2 O 3 /TiO 2 . The authors found that the type of fuel and its concentration influence the synthesis of this heterojunction material.…”

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

“…[56,69,70] It is vital to reasonably manipulate the stoichiometric ratio of Bi and Ti to form pure bismuth titanate, [71] and tuning synthetic conditions, such as reaction route, temperature, may well govern the corresponding phase. [72] Our group [73] used hydrothermal method to synthesize ultrathin Bi 4 Ti 3 O 12 nanosheets, with Ti(OC 4 H 9 ) 4 and Bi(NO 3 ) 3 .5H 2 O as precursors, and NaOH as a mineralizer. Considering the challenges of low adsorption for CO 2 molecules and poor light harvesting, surface oxygen defects are introduced into ultrathin Bi 4 Ti 3 O 12 nanosheets through a hydrothermal post-treatment process with the employment of reductant glyoxal.…”