Photoelectrocatalytic degradation of pharmaceuticals promoted by a metal-free g‑C3N4 catalyst

Chemical Engineering Journal, Год журнала: 2023, Номер 476, С. 146761 - 146761

Опубликована: Окт. 17, 2023

Graphitic carbon nitride (g-C3N4) recently emerged as a remarkable photoelectrocatalyst for water treatment. Advanced oxidation processes (AOPs) consisting of photoelectrocatalytic (PEC) systems are being researched towards the development sustainable strategies complete removal refractory contaminants from effluents urban wastewater treatment plants (WWTPs). This work consists optimisation PEC system, composed boron-doped diamond (BDD) anode, titanium cathode, and suspended g-C3N4 photoelectrocatalyst, both synthetic real waste waters spiked with pharmaceutical active compounds (PhACs). Different working parameters were considered optimised to improve degradation mineralisation rates, such cathode material, anode-to-cathode distance, electrolyte resistivity, matrix composition. The optimal conditions allowed removals 100 % diclofenac, 88 fluoxetine 77 ibuprofen in complex matrix. Moreover, it was observed that presence other organic molecules offered greater impediment than residual co-existing substances. main oxidative agents investigated by scavenging experiments, showing generated holes reactive oxy-species, i.e. hydroxyl superoxide radicals, take major role PhACs. recyclability suspension process provides promising perspective units.

Язык: Английский

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Wastewater reuse and pharmaceutical pollution in agriculture: Uptake, transport, accumulation and metabolism of pharmaceutical pollutants within plants

Chemosphere, Год журнала: 2024, Номер 364, С. 143055 - 143055

Опубликована: Авг. 9, 2024

The presence of pharmaceutical pollutants in water sources has become a growing concern due to its potential impacts on human health and other organisms. physicochemical properties pharmaceuticals based their intended therapeutical application, which include antibiotics, hormones, analgesics, antidepressants, is quite diverse. Their wastewater, sewerage water, surface ground even drinking reported by many researchers throughout the world. Human exposure these through or consumption aquatic terrestrial organisms raised concerns about adverse effects, such as endocrine disruption, antibiotic resistance, developmental abnormalities. Once environment, they can persist, undergo transformation, degrade, leading complex mixture contaminants. Application treated compost, manures biosolids agricultural fields introduce environment. As are diverse nature, significant differences observed during uptake accumulation plants. While there have been extensive studies ecosystems, effect land more disparate. now, few reports available plant transportation within between organs. This review summarizes occurrence bodies at range concentrations uptake, accumulation, transport tissues. Research gaps pollutants' specific growth future research scopes highlighted. factors affecting including hydrophobicity, ionization, (pKa, logK

Язык: Английский

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Facile synthesis of reduced graphene oxide/carbon/calcium alginate aerogel for the removal of pharmaceutical pollutants

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 139688 - 139688

Опубликована: Янв. 1, 2025

Язык: Английский

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Assessment of the effects of paroxetine and zinc on crustaceans through integrated quantitative and taxon/functional tools with a focus on free-living marine copepods and amphipods

Marine Pollution Bulletin, Год журнала: 2025, Номер 215, С. 117887 - 117887

Опубликована: Март 30, 2025

Язык: Английский

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Occurrence and fate of antidepressants in the aquatic environment: Insights into toxicological effects on the aquatic life, analytical methods, and removal techniques

Journal of environmental chemical engineering, Год журнала: 2022, Номер 10(6), С. 109012 - 109012

Опубликована: Ноя. 21, 2022

Язык: Английский

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Evaluation of adsorption performance and mechanisms of a highly effective 3D boron-doped graphene composite for amitriptyline pharmaceutical removal

Journal of Environmental Management, Год журнала: 2023, Номер 344, С. 118363 - 118363

Опубликована: Июль 4, 2023

Three-dimensional heteroatom-doped graphene presents a state-of-the-art approach for effective remediation of pharmaceutical wastewater on account its distinguished adsorption and physicochemical attributes. Amitriptyline is an emerging tricyclic antidepressant pollutant posing severe risks to living habitats through water supply food chain. With ultra-large surface area plentiful chemical functional groups, oxide favorable adsorbent decontaminating polluted water. Herein, new boron-doped composite reinforced with carboxymethyl cellulose was successfully developed via solution-based synthesis. Characterization study revealed that the formed by sheets intertwined into porous network engrafted 13.37 at% boron. The has zero charge at pH 6 contained various groups favoring attachment amitriptyline. It also found mere 10 mg able achieve relatively high amitriptyline removal (89.31%) 50 ppm solution concentration 30 °C. attained equilibrium within 60 min across concentrations ranging from 300 ppm. kinetic were well correlated pseudo-second-order Langmuir models, respectively, portraying highest capacity 737.4 mg/g. Notably, predominant mechanism chemisorption assisted physisorption contributed outstanding saturated sufficiently regenerated using ethanol eluent. results highlighted impressive performance as-synthesized in treating amitriptyline-containing waste effluent.

Язык: Английский

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Pharmaceuticals in raw and treated water from drinking water treatment plants nationwide: Insights into their sources and exposure risk assessment

Water Research X, Год журнала: 2024, Номер 24, С. 100256 - 100256

Опубликована: Сен. 1, 2024

Due to the large amounts of pharmaceuticals and personal care products (PPCPs) currently being consumed released into environment, this study provides a comprehensive analysis pharmaceutical pollution in both raw treated water from full-scale drinking treatment plants nationwide. Our investigation revealed that 30 out 37 PPCPs were present with mean concentrations ranging 0.01-131 ng/L. The sources, surface (ND - 147 ng/L), subsurface 123 ng/L) reservoir sources 135 exhibited higher concentration levels residues compared groundwater 1.89 ng/L). Meanwhile, water, 17 analyzed carbamazepine, clarithromycin, fluconazole, telmisartan, valsartan, cotinine most common (detection frequency > 40 %), having 1.22, 0.12, 3.48, 40.1, 6.36, 3.73 ng/L, respectively. These findings highlight that, while processes are effective, there some persistent compounds prove challenging fully eliminate. Using Monte Carlo simulations, risk assessment indicated these likely have negligible impact on human health, except for antihypertensives. Telmisartan was identified as posing highest ecological (RQ 1), warranting further investigation, monitoring. concludes by prioritizing specific 14 pharmaceuticals, including lamotrigine, cotinine, lidocaine, tramadol, others, future monitoring safeguard health.

Язык: Английский

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Long and Short Duration Exposures to the Selective Serotonin Reuptake Inhibitors (SSRIs) Fluoxetine, Paroxetine and Sertraline at Environmentally Relevant Concentrations Lead to Adverse Effects on Zebrafish Behaviour and Reproduction

Toxics, Год журнала: 2023, Номер 11(2), С. 151 - 151

Опубликована: Фев. 4, 2023

Selective serotonin reuptake inhibitors (SSRIs) are currently the most prescribed class of psychotropic medications. Their increased global manufacture and use have become growing concerns for aquatic toxicologists environmental biologists, who assess both direct indirect effects substances on environment human health. In order to potential impact environmentally relevant levels SSRIs fish development, behaviour reproduction, we exposed juvenile adult zebrafish a select group using two separate exposure paradigms. first paradigm, were Fluoxetine (Prozac), Paroxetine (Paxil), Sertraline (Zoloft) or mixture three beginning at (10 µg/L) 135 days (long-term exposure) 5 post fertilization (dpf). second matching concentrations same 35 (short-term exposure). The long-term paradigm proved little no overt effect growth development sub-lethal 100 µg/L). However, stress/anxiety response (novel tank tests) reproduction (fecundity fertility) dramatically reduced. Importantly, short-term reproductively mature led similar adverse stress reproduction. Following short long duration paradigms, 2-week washout period small reduction in effects. These findings highlight negatively population dynamics may be particular value should they found other species environment.

Язык: Английский

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Antidepressant pharmaceuticals in aquatic systems, individual-level ecotoxicological effects: growth, survival and behavior

Aquatic Toxicology, Год журнала: 2023, Номер 260, С. 106554 - 106554

Опубликована: Май 7, 2023

Язык: Английский

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The metabolites could not be ignored: A comparative study of the metabolite norfluoxetine with its parent fluoxetine on zebrafish (Danio rerio)

Aquatic Toxicology, Год журнала: 2023, Номер 257, С. 106467 - 106467

Опубликована: Март 1, 2023

Язык: Английский

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