Photocatalytic activation of C-Br bond on facet-dependent BiOCl with oxygen vacancies

Enhanced photodegradation of decabromodiphenyl ether on oxygen vacancy-enriched Bi2MoO6

“…The relative intensities of the three kinds of nona-BDEs obtained by removing one bromine from BDE209 can be used to speculate on the debromination mechanism of BDE209. 23,37 As shown in Fig. 6a , the para -, meta - and ortho -position debromination products of BDE209 are labeled as BDE208, BDE207 and BDE206.…”

“… 22 Interestingly, previous work has shown that the in situ generated oxygen vacancies at the BiOCl interface during photocatalysis help to activate C–Br bond and promote the degradation of BDE209. 23 Therefore, the introduction of a reasonable number of oxygen vacancies into the catalyst surface helps to facilitate the debromination of BDE209. Meanwhile, the oxygen vacancies will induce new energy levels and promote the red shift of the light absorption band edge, thereby increasing the light utilization and improving the catalytic efficiency.…”

Construction of a hydrangea-like Bi2WO6/BiOCl composite as a high-performance photocatalyst

“…25,26 Similar to Bi 2 WO 6 , BiOCl exhibits a laminated structure, with [Bi 2 O 2 ] 2+ layers interwoven with Cl 2 2À . 27 As a broad band gap (B3.2 eV) semiconductor, BiOCl only absorbs UV light, which limits its photocatalytic application in visible light. Considering the similar crystal structures of Bi 2 WO 6 and BiOCl, a Bi 2 WO 6 /BiOCl heterojunction has been developed to enhance their photocatalytic activity.…”

Optical and Photocatalytic Properties of Br-Doped BiOCl Nanosheets with Rich Oxygen Vacancies and Dominating {001} Facets

“…During the last decades, people have developed many semiconductor materials (such as ZnO, TiO 2 , CeO 2 , and MoS 2 ) as efficient photocatalysts to purify wastewater [4][5][6][7]. In the midst of these semiconductor materials, BiOCl, composed of [Bi 2 O 2 ] 2+ layers interleaved with double Cllayers, has received extensive attention and fascination owing to its nontoxicity, environmental stability, low cost, open crystalline structure, and indirect-transition bandgap [8][9][10].…”