Emerging micropollutants in aquatic ecosystems and nanotechnology-based removal alternatives: A review

Chemosphere, Год журнала: 2023, Номер 341, С. 139945 - 139945

Опубликована: Авг. 28, 2023

Язык: Английский

---

Zeolites in wastewater treatment: A comprehensive review on scientometric analysis, adsorption mechanisms, and future prospects

Environmental Research, Год журнала: 2024, Номер 260, С. 119782 - 119782

Опубликована: Авг. 12, 2024

Язык: Английский

---

Congo red dye removal using modified banana leaves: Adsorption equilibrium, kinetics, and reusability analysis

Groundwater for Sustainable Development, Год журнала: 2023, Номер 23, С. 101005 - 101005

Опубликована: Авг. 24, 2023

Язык: Английский

---

Harnessing sustainable N-doped activated carbon from walnut shells for advanced all-solid-state supercapacitors and targeted Rhodamine B dye adsorption

Journal of Science Advanced Materials and Devices, Год журнала: 2024, Номер 9(2), С. 100699 - 100699

Опубликована: Март 4, 2024

This research introduces a novel approach to repurposing walnut shells, an abundant agricultural waste, for the synthesis of sustainable nitrogen-doped activated carbon (N@AC). The resulting material exhibits remarkable properties suitable dual applications in high-performance all-solid-state supercapacitors and efficient Rhodamine B dye (RhB) adsorption. In three-electrode setup, N@AC electrode impressive specific capacitance 484.6 F g-1 at 1 A long-term stability, maintaining 97.4% its initial performance even after 5000 charge-discharge cycles. Simultaneously, symmetric supercapacitor configuration (N@AC//N@AC) demonstrates outstanding capacitance, registering 168.8 g-1, accompanied by favourable rate capability 67.3% 10 g-1. Notably, N@AC//N@AC attains high energy density 39.8 WhKg−1 Furthermore, cyclic retaining 83.91% 10,000 Moreover, adsorption efficiency toward RhB is scrutinized, highlighting efficacy addressing environmental remediation challenges. porous architecture nitrogen functionalities play crucial role expeditiously eliminating organic pollutants from aqueous solutions, offering treating wastewater. Optimal conditions highest are identified: pH 7.2, contact duration 180 min, concentration 20 mgL−1. Thermodynamic evaluations, encompassing determination ΔH◦, ΔS◦, signify endothermic spontaneous nature process. desorption investigations, it noted that H2O, employed as eluting agent, proficiently releases 87.35% adsorbed dye.

Язык: Английский

---

Employing a magnetic chitosan/molybdenum disulfide nanocomposite for efficiently removing polycyclic aromatic hydrocarbons from milk samples

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Июль 1, 2024

Abstract This study aimed to develop a highly efficient nanocomposite composed of magnetic chitosan/molybdenum disulfide (CS/MoS 2 /Fe 3 O 4 ) for the removal three polycyclic aromatic hydrocarbons (PAHs)—pyrene, anthracene, and phenanthrene. Novelty was introduced through innovative synthesis procedure utilization properties enhanced adsorption capabilities. Additionally, greenness chitosan as sorbent component emphasized, highlighting its biodegradability low environmental impact compared traditional sorbents. Factors influencing PAH adsorption, such dosage, initial concentration, pH, contact time, were systematically investigated optimized. The results revealed that optimal efficiencies attained at an concentration 150 mg/L, dose 0.045 g, pH 6.0, time min. pseudo-second-order kinetic model exhibited superior fitting experimental data, indicating equilibrium approximately Moreover, process followed Freundlich isotherm model, with k f n values exceeding 7.91 mg/g 1.20, respectively. Remarkably, maximum absorption capacities phenanthrene, pyrene on determined 217 mg/g, 204 222 These findings underscore significant potential CS/MoS efficiently removing PAHs from milk other dairy products, thereby contributing improved food safety public health.

Язык: Английский

---

Modeling sunset yellow removal from fruit juice samples by a novel chitosan-nickel ferrite nano sorbent

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Янв. 2, 2024

Analysis of food additives is highly significant in the industry and directly related to human health. This investigation into removal efficiency sunset yellow as an azo dye fruit juices using Chitosan-nickel ferrite nanoparticles (Cs@NiFe2O4 NPs). The were synthesized characterized various techniques. effective parameters for removing optimized response surface methodology (RSM) based on central composite design (CCD). Under optimum conditions, highest (94.90%) was obtained initial concentration 26.48 mg L-1 at a pH 3.87, reaction time 67.62 min, nanoparticle dose 0.038 g L-1. pseudo-second-order kinetic model had better fit experimental data (R2 = 0.98) than other models. equilibrium adsorption process followed Freundlich isotherm with maximum capacity 212.766 g-1. achieved industrial traditional juice samples (91.75% 93.24%), respectively, confirmed method's performance, feasibility, efficiency. showed no decrease after five recycling, indicating that sorbent has suitable stability practical applications. variousThe can be suggested efficient remove from products.

Язык: Английский

---

Resource utilization of wastepaper and bentonite: Cu(II) removal in the aqueous environment

Journal of Environmental Management, Год журнала: 2024, Номер 353, С. 120213 - 120213

Опубликована: Янв. 30, 2024

Язык: Английский

---

Selective adsorption of cationic dyes by layered double hydroxide with assist algae (Spirulina platensis) to enrich functional groups

JCIS Open, Год журнала: 2024, Номер 15, С. 100118 - 100118

Опубликована: Июнь 26, 2024

The present study involved the preparation, characterization, and evaluation of layered double hydroxide (LDH) with assistance algae Spirulina platensis (NiAl-Sp ZnAl-Sp). These materials were investigated for their potential selective adsorption cationic dyes, including rhodamine B, malachite green, methylene blue. adsorbents exhibit a significant level selectivity in capacity to adsorb green comparison other dyes. next parameter was evaluated as Based on Langmuir isotherm model, calculated maximum capacities NiAl-Sp ZnAl-Sp determined be 478.190 mg/g (pH = 4, 50 °C 30 min) 123.457 min), respectively. main processes encompassed not only electrostatic interactions but also hydrogen bonding π-π involving dye amino, hydroxyl, carboxyl functional groups derived from platensis. enhances group LDH. findings this indicate that composite demonstrated stability sorbent green. Furthermore, it observed could utilized up four cycles, there noticeable decrease its capability over time. revealed synthesized high efficacy effluent.

Язык: Английский

---

An exploration of RSM, ANN, and ANFIS models for methylene blue dye adsorption using Oryza sativa straw biomass: a comparative approach

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 23, 2025

This study focused on simulating the adsorption-based separation of Methylene Blue (MB) dye utilising Oryza sativa straw biomass (OSSB). Three distinct modelling approaches were employed: artificial neural networks (ANN), adaptive neuro-fuzzy inference systems (ANFIS), and response surface methodology (RSM). To evaluate adsorbent's potential, assessments conducted using Fourier-transform infrared spectroscopy (FTIR) scanning electron microscopy (SEM). The evaluation RSM, ANN, ANFIS included quantification R2, mean squared error (MSE), root square (RMSE), absolute (MAE) metrics. regression coefficients from process demonstrated that RSM (R2 = 0.9216), ANN 0.8864), 0.9589) all accurately predicted MB adsorptive removal. However, comparative statistical analysis revealed model exhibited superior accuracy in data-based predictions compared to models. ideal pH for adsorption utilizing OSSB was established as 7. Additionally, favourable outcomes obtained with 60-minute contact durations, 20 mg adsorbent quantities, temperatures 30 °C. pseudo 2nd -order kinetic by confirmed. equilibrium data a fit Langmuir isotherm comparison Freundlich model. thermodynamic parameters, including (∆G -9.1489 kJ/mol), enthalpy change (∆H -1457.2 entropy (∆S -19.03 J mol−1 K−1) indicated onto is exothermic spontaneous under experimental conditions. research effectively showcased potential removal OSSB. generated parameter proved valuable design control process.

Язык: Английский

---

Synthesis of high-performance magnetic biochar for adsorption of Ni2+ and Co2+from spent lithium-ion battery effluent

Journal of Hazardous Materials Advances, Год журнала: 2025, Номер unknown, С. 100627 - 100627

Опубликована: Фев. 1, 2025

Язык: Английский

---