Effect of solvents on morphology and photocatalytic activity of BiOBr synthesized by solvothermal method

A facile approach for the tunable fabrication of BiOBr photocatalysts with high activity and stability

“…This requires a comprehensive understanding of the intrinsic character of the morphology [17,18], particle size [19], then insights on the relationship between the crystalline facet [20,21] and its performance. As most photocatalysts were prepared in solutions, the types of media solutions play a crucial role in the physicochemical properties and photocatalyst activity.…”

“…For instance, Liu's group demonstrated the importance of viscosity in the preparation of BiOBr photocatalyst. By changing the solvent (ethanol, ethylene glycol and glycerol), they successfully synthesized BiOBr with controlled M a n u s c r i p t 4 morphology and specific photocatalytic activities [17]. In addition, the pH of solution could influence the exposed-facet of BiOBr.…”

Combustion Synthesis of BiOCl with Tunable Percentage of Exposed {001} Facets and Enhanced Photocatalytic Properties

“…Moreover, these thin sheets can grow into thick ones through the oriented attachment with other sheets along the {001} facets. 25 It has been reported that some capping or template reagents are often used to modulate the growth of nanomaterials. 25 Through the selective adsorption of these reagents on the specific plane of nanoparticle, their intrinsic anisotropic growth were restricted, leading to the formation of different morphologies.…”

“…25 It has been reported that some capping or template reagents are often used to modulate the growth of nanomaterials. 25 Through the selective adsorption of these reagents on the specific plane of nanoparticle, their intrinsic anisotropic growth were restricted, leading to the formation of different morphologies. In our case, large quantities of gas formed and dispersed in the combustion synthesis system, which significantly inhibits the oriented attachment of BiOCl sheet.…”

Photocatalytic properties of hierarchical BiOXs obtained via an ethanol-assisted solvothermal process

“…BiOBr sheets are always formed in hydrothermal reaction systems (Shang et al, 2009). It seems that the solvent used plays a vital role in controlling the morphology of BiOBr (Liu et al, 2012). BiOCl and BiOI with different morphologies and photocatalytic activities have also been obtained by many methods Xiong et al, 2013;Zhang et al, 2013;Ye et al, 2013).…”