Construction of hollow ZnO/Mn-ZIF-67 heterojunction photocatalysts: enhanced photocatalytic performance and mechanistic insight

Abstract

Thanks to the unique structure and properties of MOFs, a well-designed novel hollow ZnO/Mn-ZIF-67 composite photocatalyst was synthesized by a facile sonocrystallization approach successfully.

A review on heterogeneous photocatalysis for environmental remediation: From semiconductors to modification strategies

“…In addition, improving the charge separation efficiency is another effective way to improve the reduction efficiency of Cr(VI). For instance, close interfacial bonding between MOFs and semiconductors, such as in the cases of UiO-66 modified with BiOCl [116], BiOBr [117], and g-C3N4 nanomaterials [118]; ZIF-67 modified with g-C3N4 [119], Fe3O4-polyvinyl pyrrolidone [120], and ZnO [121]; and ZIF-8 modified with CuOx [122], Cu2O-ZnO [123], and TiO2 [32], can efficiently enhance the separation of photogenerated e  -h + pairs. In this regard, Qiu et al developed Cd0.5Zn0.5S@ZIF-8 nanocomposites with impressive photocatalytic performances by a self-assembly strategy for the first time to improve the photocatalytic reduction of Cr(VI) (Fig.…”

Constructing TiO2@MOF S-scheme heterojunctions for enhanced photocatalytic degradation of antibiotics and Cr(vi) photoreduction

“…This electric field improves the charge separation and transport efficiency of the photocatalyst. [23][24][25][26][27] Recently, a step-scheme mechanism, namely the S-scheme mechanism, was proposed and proved to be an effective charge-separation strategy for many photocatalysts. 28 The S-scheme heterojunctions are constructed by a reduced photocatalyst (RP) and an oxidized photocatalyst (OP) with staggered band alignment.…”