Desalination, Год журнала: 2024, Номер unknown, С. 118457 - 118457
Опубликована: Дек. 1, 2024
Язык: Английский
Green Analytical Chemistry, Год журнала: 2024, Номер unknown, С. 100156 - 100156
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
15
Water Cycle, Год журнала: 2025, Номер unknown
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
ACS Applied Engineering Materials, Год журнала: 2024, Номер 2(2), С. 368 - 375
Опубликована: Фев. 8, 2024
Perfluoroalkyl substances (PFAS), widely used for their chemical and thermal stability in various industrial applications, have raised environmental health concerns due to ubiquitous presence water sources. Stringent regulations targeting long-chain PFAS been enacted, but emerging evidence indicates risks associated with short-chain PFAS. Adsorption stands out as a viable remediation technology PFAS-containing water. Electric-field-aided adsorption (electrosorption) emerges technique that has demonstrated it can adsorb from enable on-demand desorption of the retained upon alternating applied voltage. Effective electrosorption demands adsorbents significant specific surface area, capacitance, durability. Two-dimensional transition metal carbides nanotrides (MXene) are competitive candidates. MXene, conjunction poly(3,4-ethylene dioxythiophene) polystyrenesulfonate (PEDOT:PSS), exhibit increased area capacitance. This study develops titanium carbide (Ti3C2Tx) MXene-PEDOT:PSS adsorbent electrosorption. Acid etching enhances adsorbent's pore characteristics, resulting an approximately 400% increase volumetric capacitance compared untreated counterparts. The capacity perfluorohexanoic acid (PFHxA), perfluorooctanoic (PFOA), perfluorononanoic (PFNA) is measured at 45.6, 51.1, 54.9 mg/g, respectively, initial concentration 750 ppb application +1.0 V. reversible adsorption–desorption cycles demonstrate potential repeated use adsorbent. We envision contribute development efficient sustainable technologies addressing contamination
Язык: Английский
Процитировано
6
Current Opinion in Electrochemistry, Год журнала: 2024, Номер 44, С. 101450 - 101450
Опубликована: Фев. 2, 2024
Separation and purification processes using adsorption are becoming more popular, with excellent benefit-cost ratio high effluent quality. However, it is important to recognize the requirement for new adsorbents avoid generation of contaminated that can have a severe impact on environment. Thus, underscoring need sustainable approaches in management regeneration these materials. To improve this process, two challenges being approached nowadays: synthesis from wastes circular economy model its integration electrochemistry (electrosorption) enhance adsorbent capacity by green electricity. This review summarizes key studies trends related electrosorption (60 articles) application removal different pollutants wastewater. It must be highlighted around 33% them, detailed electrosorbents inorganic organic pollutants. In addition, other non-sustainable electrodes (approximately 23%) describe last trend electrosorbent characteristics. From our standpoint, crucial delve into research, particularly regarding their efficiency processes, potential breakthrough field.
Язык: Английский
Процитировано
4
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
RSC Advances, Год журнала: 2023, Номер 13(43), С. 29809 - 29818
Опубликована: Янв. 1, 2023
Over the past few decades, there has been a growing concern regarding fate and transport of pharmaceuticals, particularly antibiotics, as emerging contaminants in environment. It proposed that presence antibiotics at concentrations typically found wastewater can impact dynamics bacterial populations facilitate spread antibiotic resistance. The efficiency currently-used treatment technologies eliminating pharmaceuticals is often insufficient, resulting release low these compounds into In this study, we addressed challenges by evaluating how different influent ibuprofen (IBU) influenced laboratory-scale, integrated constructed wetland-microbial fuel cell (CW-MFC) system seeded with Eichhornia crassipes, terms organic matter removal, electricity generation, change community structure compared to unplanted, sediment MFC (S-MFC) abiotic S-MFC (AS-MFC). We observed addition IBU (5 mg L-1) resulted notable decrease chemical oxygen demand (COD) suggesting high caused partial inhibition for electroactive microbial due its complexity aromaticity. However, CW-MFC could recover from after an acclimation period unplanted S-MFC, even though level was increased up 20 L-1, plants CW-MFCs have beneficial role relieving anode respiration levels IBU; thus, promoting metabolic activity community. Similarly, removal (i.e., 49-62%) much higher SMFC 29-42%), AS-MFC 20-22%) during all experimental phases. addition, our throughput sequencing revealed performance associated increasing relative abundances several groups are closely affiliated fermentation. summary, results show demonstrates suitability effective generation.
Язык: Английский
Процитировано
10
Biomass Conversion and Biorefinery, Год журнала: 2024, Номер unknown
Опубликована: Май 7, 2024
Язык: Английский
Процитировано
3
Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155456 - 155456
Опубликована: Сен. 3, 2024
Per- and polyfluorinated substances (PFAS) have complex sorption behaviors, complicating removal from water selection of suitable adsorbents. We evaluated adsorption 44 PFAS across four adsorbent groups: activated carbon biochar (AC BC), cyclodextrin-based adsorbents (cyclodextrins), polymer-based resins, inorganic metal organic frameworks (MOFs). analyzed over 500 coefficients (Kd) literature, calculated at aqueous equilibrium concentration 1 ± 0.3 µg/L under comparable experimental conditions. On average, Kd AC BC exceeded 107 L/kg for with C-F bonds > 7, unlike other < 107. This trend holds 4. Cyclodextrins, resins outperform ≤ For BC, follows the order PFOS>PFOA>PFBS>PFBA, increasing point zero charge. as well cyclodextrin, values were related to hydrophobicity steric properties. Additionally, was influenced by head group type, non-fluorinated atoms, presence oxygen and/or chlorine in PFAS. No clear relationship found Adsorption prediction using a Random Forest Regressor literature data feasible but not Cyclodextrins removing varying mobilities water, whereas are superior low mobility To support further use all code used freely available, following FAIR principles.
Язык: Английский
Процитировано
3
Environmental Science & Technology, Год журнала: 2024, Номер 58(13), С. 5987 - 5995
Опубликована: Март 20, 2024
Sorption to activated carbon is a common approach reducing environmental risks of waterborne perfluorooctanoic acid (PFOA), while effective and flexible approaches PFOA sorption are needed. Variations in temperature or the use electrokinetic phenomena (electroosmosis electromigration) presence external DC electric fields have been shown alter contaminant contaminants. Their role sorption, however, remains unclear. Here, we investigated joint effects on carbon. Temperature-dependent batch column experiments were performed absence fields, results evaluated by using different kinetic models. We found an emerging interplay which was linked via liquid viscosity (η) electrolyte. For instance, combined field low increased loading up 38% 48 h relative DC-free controls. further developed model that allowed us predict temperature- strength-dependent benefits drivers kinetics (i.e., intraparticle diffusivity film mass transfer coefficient). Our insights may give rise future DC- temperature-driven applications for response fluctuating concentrations contaminated water streams.
Язык: Английский
Процитировано
2
Inorganic Chemistry Frontiers, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
This review overviews the recent advances in electrodialysis (ED) extracting critical metals from spent battery leachate. In addition, strategies and challenges regarding ED techniques toward recycling are pointed out.
Язык: Английский
Процитировано
2