Performance study of BiVO4/BiOCl, a catalytic material for water cleaning with full spectral response in landscape design

Abstract

BiVO4/BiOCl photocatalytic materials were prepared by photodeposition using BiVO4 with the exposed active crystalline planes as substrates. Driven by Vis-NIR BiVO4/BiOCl removes 73.29 %/61.12 % of tetracycline, and its degradation of RhB, MB, MO, phenol, CIP, BHA, BPA, and coumarin reaches 55.86 %–90.45 % (Vis)/40.97 %–82.09 % (NIR), respectively. In addition, it has good degradation ability for antibiotics in landscape water environment. The existence of disparities in energy levels gives rise to the distinct crystal surface capping ions, thereby inducing the generation of oxygen vacancies (OVs) within the system. Driven by the inherent electric field, the localized surface plasmon resonance (LSPR) effect, which is facilitated by OVs, enhances the broad-spectrum degradation across the entire response spectrum of the heterojunction. This research leverages the creation of OVs and the establishment of heterojunctions to present a novel concept for the development and investigation of the full-spectrum-driven purification materials for landscape water ecosystems.