Controlled Architectures in Supported Photocatalysis: Exploring the Potential of Cold Plasma Discharge, Additive Manufacturing, and Fractal Geometry to Form Hierarchically Immobilized Ni-MOF/BiOI/AgVO3

• DOI: 10.1021/acsami.3c05596
• Publication Date: 2023-06-23T05:25:49Z
• Authors: Yongfu Kang; Junwen Cai; Linfeng Zhang; Hong-Wei Wang; Rui-Bo Jin; Yoann de Rancourt...; Xiaoyun Jin; Jia Guo
• Keywords: Photodegradation; Polymer substrate

Herein, we explore the potential of innovative manufacturing techniques based on green chemistry principles, for fabrication convenient, performant, and stable supported photocatalysts to be used water depollution. After giving some insight into use fractal geometry tunable polymer supports photocatalysts, investigated liquid crystal display (LCD) 3D printing generate resin substrates immobilization semiconductor photocatalysts. Notably, confocal laser imaging was as a first attempt assessing surface area substrate. Immobilization methods cold plasma discharge (CPD) were employed modify permanently anchor three different phases, namely, nickel-based metal-organic framework (Ni-MOF), BiOI, AgVO3, in hierarchical configuration. time, developed plasma-initiated condensed situ complexation-assisted precipitation (c-ISCAP) method that allowed 2D Ni-MOF synthesized directly onto substrate, single step. Not only this MOF coating found strongly bound substrate but also very uniform fully functional, even when other inorganic phases immobilized top layer. This chemical approach opens way hybrid materials with complex coatings could range possible applications, instance sensors, electrodes, adsorbents, optical devices, etc. Our tested via photodegradation Rhodamine B (RhB) dye upon visible light activation, recycling runs assess their durability. It heterojunction Ni-MOF/BiOI/AgVO3 showed an outstanding ability removal RhB dye, owing activity layer terms charge transfer, partly because its adsorbing potential. The photoactive demonstrated strong synergistic effect through coupling. However, more importantly, our findings show itself, regardless used, significantly modified optoelectronic properties, hence most likely changing overall mechanism transfer heterojunction. phase, notably, reduced bandgap obtained by c-ISCAP, which contributed enhance activation irradiation. Finally, it established had significant impact efficiency catalysts, probably thanks increased ratio photocatalyst mostly, larger available.