Magnetic recyclable α-Fe₂O₃–Fe₃O₄/Co₃O₄–CoO nanocomposite with a dual Z-scheme charge transfer pathway for quick photo-Fenton degradation of organic pollutants

Abstract

The Integration of multiple degradation pathways in a single catalyst is a potential approach to advance the technologies of organic pollutants degradation. To integrate both heterogenized photo-Fenton reaction and Z-scheme...

Construction of Bi2S3/TiO2/MoS2 S‐Scheme Heterostructure with a Switchable Charge Migration Pathway for Selective CO2 Reduction

“…This reveals that BTM1.5 has the lowest recombination rate of the charge carriers (Figure 6f). [ 63 ] However, the nanostructure's surface area and porosity play an effective role in separating and transporting charge carriers. [ 64 ] The prepared samples’ Brunauer–Emmett–Teller (BET) surface area and Barrett–Joyner–Halenda (BJH) pore volume are shown in Figure S2.…”

“…Figure S3a,b, Supporting Information, shows the photocatalytic reaction of BTM1.5 toward RhB dye degradation in the presence of BQ, Na 2 SO 4 , TBA, and KI, which are the scavenging materials for •O 2 − , electrons, •OH, and holes, respectively. [ 63,69–72 ] Under UV–vis–NIR, the charge carriers, •O 2 − and •OH, effectively contributed for the degradation of RhB, whereas under vis–NIR, only electrons and •O 2 − were the major responses for the photocatalytic reaction. These results clearly demonstrate that under UV–vis–NIR, the charge migration pathway follows the S‐scheme system, and under vis–NIR, the heterojunction system is followed.…”

“…Figure S3a,b, Supporting Information, shows the photocatalytic reaction of BTM1.5 toward RhB dye degradation in the presence of BQ, Na 2 SO 4 , TBA, and KI, which are the scavenging materials for •O 2 À , electrons, •OH, and holes, respectively. [63,[69][70][71][72] Under UV-vis-NIR, the charge carriers, •O 2 À and •OH, effectively contributed for the degradation of RhB, whereas under vis-NIR, only electrons and •O 2…”

Enhanced Photocatalytic and Photoluminescence Properties Resulting from Type-I Band Alignment in the Zn2GeO4/g-C3N4 Nanocomposites

“…Of course, the persistent population growth aligned with the fast industrial expansion also brought serious environmental problems; currently, the water pollution by synthetic organic dyes is one of the biggest reasons for concern [1][2][3][4]. As is well-known, about 7 × 10 5 tons of synthetic organic dyes are annually used by the textile industry [4,5]. Even at low concentrations, such dyes are highly mutagenic, carcinogenic, and in addition lessbiodegradable [6].…”

“…Consequently, in this perspective, the treatment of complex organic pollutants has been prioritized and well regulated by diverse countries. Thus, various strategies have been employed to the treatment of effluent with complex features (e.g., adsorption, biological degradation, membrane separation, photocatalysis, and so on), with more and more researchers paying attention to the development as well as application of heterostructured semiconducting materials-based photocatalysts [5][6][7][8][9][10][11]. Particularly, the photocatalysis has been considered as the most-efficient low-cost strategy to the treatment of effluent, resulting in a fast and non-selective oxidation of diverse pollutants [6,12].…”