The development of distinguished photocatalysts with high photo-carrier disassociation and photo-redox power for efficient elimination of pollutants in water is of great significance but still of a grand challenge. Herein, a novel Cd 0.5 Zn 0.5 S/Bi 2 WO 6 S-scheme heterojunction was built up by integrating Cd 0.5 Zn 0.5 S nanoparticles on Bi 2 WO 6 microspheres through a simple route. The S-scheme charge transfer mode substantially boosts the high-energetic electrons/holes spatial detachment and conservation on the Cd 0.5 Zn 0.5 S (reduction) and Bi 2 WO 6 (oxidation), respectively, as well as effectively suppresses the photo-corrosion of Cd 0.5 Zn 0.5 S, rendering Cd 0.5 Zn 0.5 S/Bi 2 WO 6 photocatalysts with superior redox ability. The optimal Cd 0.5 Zn 0.5 S/Bi 2 WO 6 heterojunction achieves exceptional visible-light-driven photocatalytic tetracycline (TC) degradation and Cr(VI) reduction efficiency, 3.2 (1.9)-time and 33.6 (1.6)-time stronger than that of neat Bi 2 WO 6 (Cd 0.5 Zn 0.5 S), while retaining the superior stability and reusability. Quenching test, mass spectrometry analysis, and toxicity assessment based on QSAR calculation unravel the prime active substances, intermediates, photo-degradation pathway and intermediate eco-toxicity in photocatalytic process. This research not only offers a potential photocatalyst for aquatic environment protection but also promotes the exploration of novel and powerful chalcogenides-based S-scheme photocatalysts for environment protection. A novel S-scheme heterojunction of Cd 0.5 Zn 0.5 S nanodots/Bi 2 WO 6 microspheres was designed and developed for highly efficient visible-light photocatalytic abatement of antibiotics and Cr(VI). A brand-new Cd 0.5 Zn 0.5 S/Bi 2 WO 6 S-scheme heterojunction was constructed; Cd 0.5 Zn 0.5 S/Bi 2 WO 6 demonstrates enhanced photocatalytic antibiotic degradation and Cr(VI) reduction; The degradation pathway of tetracycline was analyzed and QSAR analysis indicates that the toxicity of tetracycline was largely attenuated by Cd 0.5 Zn 0.5 S/Bi 2 WO 6 The mechanism and driving force of charge migration and separation in photoreaction were discussed; The S-scheme charge transfer mechanism ensures improved charge separation and stronger redox ability. 

Constructing Cd0.5Zn0.5S/Bi2WO6 S-scheme heterojunction for boosted photocatalytic antibiotic oxidation and Cr(VI) reduction

Ta3N5/CdS Core–Shell S-scheme Heterojunction Nanofibers for Efficient Photocatalytic Removal of Antibiotic Tetracycline and Cr(VI): Performance and Mechanism Insights

Toxicity of the Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) acetylsalicylic acid, paracetamol, diclofenac, ibuprofen and naproxen towards freshwater invertebrates: A review.

A systematic review of antibiotics and antibiotic resistance genes in estuarine and coastal environments

Risks of organic UV filters: a review of environmental and human health concern studies

Residues, bioaccumulation, and trophic transfer of pharmaceuticals and personal care products in highly urbanized rivers affected by water diversion.

Metagenomic analysis explores the interaction of aged microplastics and roxithromycin on gut microbiota and antibiotic resistance genes of Carassius auratus.

In this study, the transgenerational effects of polystyrene nanoplastics (PS-NPs) and ethylhexyl salicylate (EHS), and their interactive effects on zebrafish (Danio rerio) were investigated. It was found that EHS concentrations in F0 and F1 in co-exposure groups were higher than those in single exposure. The hatching rates of F0 and F1 decreased and the malformation and mortality rates of F1 increased, especially in co-exposure groups. For F0, antioxidant indicators (including glutathione, reactive oxygen species and malondialdehyde contents, and superoxide dismutase and catalase activities) and thyroid indicators (e.g. triiodothyronine contents and thyroid receptor A, thyroid receptor B and deiodinase 2 expression levels) in all test groups containing EHS were all increased, while the thyroxin content and deiodinase 1 expression levels were reduced compared with the corresponding control group. F1 showed similar or even stronger biochemical effects, while the indicators mentioned above for F0 and F1 in co-exposure groups were further intensified on the basis of EHS alone. Our results showed that the presence of PS-NPs may promote the bioaccumulation of EHS and its transfer from parents to offspring. EHS could induce growth and developmental toxicity, oxidative stress and thyroid toxicity on both parents and offspring, while PS-NPs and EHS exerted interactive effects on the transgenerational effects of EHS on zebrafish. Ultimately, two associated potential adverse outcome pathways of transgenerational toxicity were identified in EHS and PS-NP co-exposure: 1) destruction of thyroid hormone homeostasis; 2) generation of reactive oxygen species and malondialdehyde.

Interactive transgenerational effects of polystyrene nanoplastics and ethylhexyl salicylate on zebrafish

In this study, the accumulation and distribution of ethylhexyl salicylate (EHS) and polystyrene nanoplastics (PS-NPs) in parental zebrafish (Danio Rerio) and offspring, and the effects of PS-NPs on EHS bioavailability...

Effects of polystyrene nanoplastics on the bioaccumulation, distribution and parental transfer of ethylhexyl salicylate

Influence of aquatic colloids on the bioaccumulation and biological effects of diclofenac in zebrafish (Danio rerio)

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