Morphology control of BiVO4 photocatalysts: pH optimization vs. self-organization

Nonaqueous Synthesis of a Bismuth Vanadate Photocatalyst By Using Microwave Heating: Photooxidation versus Photosensitized Decomposition in Visible‐Light‐Driven Photocatalysis

“…[12,13] It crystallises in three different polymorphs, az ircon structure with tetragonal symmetry and scheelite structure with either monoclinic or tetragonal symmetry.A mong these, monoclinic scheelite-type BiVO 4 exhibits af avorable visible-light response and activity. [14,15] With af ocuso nc atalyst performance various synthetic routes have been reported for monoclinic BiVO 4 ,w hich include solid-state reaction, [16] hydrothermalp reparation, [17][18][19] sonochemical methods, [20] metal-organic decomposition [21] , and methods based on co-precipitation. [22] In addition, microwave-assisted hydrothermal synthesis was used to prepare nanostructured monoclinic BiVO 4 .…”

“…(7 m 2 g À1 ). [19] All BiVO 4 samples show an egligible amount of carbon (< 0.7 %). Notably,t he powder XRD patterns do not show shifts of reflectionst ol ower angles (Figure 4b), which would be expected for carbon-doped BiVO 4 .…”

“…[14] However,R essnig et al measured also band gaps up to 2.58 eV for m-BiVO 4 as ar esult of av ariety of possible reasonss uch as quantum confinemente ffects and internal lattice distortions. [19] Photocatalytic activity…”

Core-substituted naphthalenediimides anchored on BiVO4 for visible light-driven water splitting

“…10 Several attempts have been performed in order to obtain optimum crystal structures and morphologies that are capable of enhancing the oxygen evolution activity of BiVO4. [11][12][13][14][15] Morphology control (heterojunction, homojunction, nanocasting, etc.) [16][17][18] and doping techniques [19][20][21][22] have been investigated with the aim to enhance the BiVO4 photocatalytic efficiency by improving both surface area and electron/hole mobility, which are necessary to minimize recombination loses and facilitate the superficial charge transfer.…”

Solvothermal synthesis of nanostructured BiVO4 with highly exposed (0 1 0) facets and enhanced sunlight-driven photocatalytic properties

“…It is well known that the morphology of BiVO 4 is various and notably affected by the synthesis methods and reaction conditions [38,43,44]. Fig.…”