In-situ ion exchange synthesis of hierarchical AgI/BiOI microsphere photocatalyst with enhanced photocatalytic properties

Enhanced visible-light-driven photocatalytic activity of WO3/BiOI heterojunction photocatalysts

“…To address these limitations, numerous modifications have been made to increase the lifetime of photogenerated charge carriers of BiOI, including self doping [15], morphology modulation [16,17] and coupling with other semiconductors [10]. Among them, as a typical p-type semiconductor, BiOI coupled with other ntype semiconductors with a relatively large band gap to form BiOI-based heterojunction composites, such as BiOI/Zn 2 SnO 4 [18], Bi 2 O 2 CO 3 /BiOI [19], BiOI/Zn 2 GeO 4 [9], BiOI/TiO 2 [20], AgI/BiOI [21], ZnWO 4 /BiOI [22], g-C 3 N 4 /BiOI [23], is proven to be an effective strategy for improving the photocatalytic activity under visible light irradiation, because the formation of interface junction can extend light responsive range, facilitate the interfacial charge transfer and enhance the separation of photoinduced electron-hole pairs [9,22]. Additionally, tungsten oxide (WO 3 ), as an important n-type visible-light photocatalyst with a band gap (2.4-2.8 eV), has received a great deal of attention due to its resilience to photocorrosion effect in aqueous solution and good electron transport properties [24].…”

Nano‐WO3‐SO3H as a New Photocatalyst Insight Through Covalently Grafted Brønsted Acid: Highly Efficient Selective Oxidation of Benzyl Alcohols to Aldehydes

“…Owing to literature, VB and CB potential edges of nano‐WO 3 and nano‐WO 3 ‐SO 3 H are computed (Eqs. , ).…”

“…Immobilizing the ÀSO 3 H groups on the surface of WO 3 causes a significant drop on band gap energy and occurring redshift. Subsequently, photoactivity of nano-WO 3 -SO 3 H would increase along visible wavelength.Owing to literature, VB and CB potential edges of nano-WO 3 and nano-WO 3 -SO 3 H are computed(34,35) (Eqs. 1, 2).…”

BiOBr/BiOCl/carbon quantum dot microspheres with superior visible light-driven photocatalysis

“…16 Photoluminescence (PL) intensity is capable of revealing the recombination efficiency of photogenerated e À and h + . 33,45,46 As is known, weaker intensity represents lower recombination efficiency of e À and h + . 40,47 Fig.…”