Design and performance of a novel direct Z-scheme NiGa2O4/CeO2 nanocomposite with enhanced sonocatalytic activity

Bacitracin-Controlled BiOI/Bi5O7I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

“…In the photoreaction, the electrons on the CB of Bi 5 O 7 I can directly react with Cr(VI) to produce Cr(III) (E Cr(VI)/Cr(III) = +0.51 eV). In addition, the electrons on the CB of Bi 5 O 7 I were more negative than the potential of O 2 / • O 2 − (−0.330 eV vs NHE), 73,74 which indicated that e − can react with O 2 to generate the • O 2 − radicals, which was the main active species for the oxidative degradation of TH. Also, the holes on the VB of BiOI can directly oxidatively degrade TH.…”

A hydrangea-like nitrogen-doped ZnO/BiOI nanocomposite for photocatalytic degradation of tetracycline hydrochloride

“…Additionally, the electrons on the CB of N–ZnO are lower than O 2 /·O 2 − (−0.330 eV vs. NHE), 60 suggesting that the e − can react with oxygen to generate ·O 2 − radicals. 61 and react with TCH to form the harmless products. The potential degradation pathways are illustrated below: e − /CB (N–ZnO) + O 2 → ·O 2 − ·O 2 − + Dye → CO 2 + H 2 O + inorganic ions h + /VB (N–ZnO) + H 2 O →·OH + OH − ·OH + Dye → CO 2 + H 2 O + inorganic ions h + + Dye → CO 2 + H 2 O + inorganic ions …”

Preparation of Ag3PO4/CoWO4 S-scheme heterojunction and study on sonocatalytic degradation of tetracycline

“…The radii of the bubbles expand, contract and/or collapse as these pressures change [20] . The collapse of transient bubble leads to the appearance of sonoluminescence (SL) and “hot spots”, which can generate high temperature and high pressure, exceeding 5000 K and 1000 atm, respectively [21] , [22] . Under such extreme conditions, water thermally decomposes to form free radicals, such as •OH, •H, •O 2 – , which are highly reactive and non-selective, attack organic molecules to produce CO 2 , H 2 O, and inorganic ions, or less toxic intermediates [23] , [24] .…”