Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 58, P. 104869 - 104869
Published: Feb. 1, 2024
Language: Английский
Polymers, Journal Year: 2023, Volume and Issue: 15(19), P. 3948 - 3948
Published: Sept. 29, 2023
This study comprehensively assesses the release rate of biocides, corrosion effects related to antifouling, and physical properties different paint types. Tests were conducted measure thickness, viscosity, hardness, bending, adhesion, gloss, impact resistance, abrasion scratch polarization, salt spray. The paints evaluated include resin-based, acrylic-based, epoxy-based, vinyl-based formulations. investigates influence biocide content, particle size, immersion time on using a lab-scale setup. Results showed that acrylic-based had higher due faster hydrolysis, while smaller sizes led rates in resin-based paints. Optimal total contents determined be 30% for 60% 50% Antifouling analysis demonstrated sample with an optimal effectively prevent algae growth fouling. Acrylic-based 30 wt.% content exhibited superior adhesion dolly separation force 4.12 MPa. Evaluating synthesized polyaniline epoxy-based paint, coated 10 represented low 0.35 µm/year high impedance value approximately 37,000 Ohm·cm−2.
Language: Английский
Citations
25
Heliyon, Journal Year: 2023, Volume and Issue: 9(11), P. e21423 - e21423
Published: Oct. 30, 2023
Fabrication of heterojunction and surface defective engineering, through the formation oxygen vacancies, are among various photocatalytic enhancement techniques. A combination these techniques has prospect enhancing activities improved light absorption capabilities charge separation process photocatalysts. In this study, a black titanium oxide-zinc oxide (BTiO2-ZnO) nanocomposite was synthesized using conventional sol-gel approach, coupled with aluminum foil-assisted NaBH4 reduction. The structure, morphology, properties, optical characteristics material were studied Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), UV-vis spectra, scanning electron microscope (SEM), Energy-dispersive (EDS), transmission (TEM). XRD confirmed successful BTiO2-ZnO heterostructure, while SEM revealed structural morphology as pseudo-spherical slight agglomeration. found to be more efficient than BTiO2 BZnO for removal tetracycline degradation efficiencies 63, 58, 56 % respectively. effects parameters such amount photocatalyst, pollutant's concentration, initial solution pH on study systematically explored. results confirm that heterostructure from could offer facile route improving catalytic tetracycline. Therefore, offers novel perspective design metal photocatalyst systems rely integration defect engineering organic contaminants.
Language: Английский
Citations
24
Toxics, Journal Year: 2023, Volume and Issue: 11(8), P. 658 - 658
Published: Aug. 1, 2023
The improper disposal of toxic and carcinogenic organic substances resulting from the manufacture dyes, drugs pesticides can contaminate aquatic environments potable water resources cause serious damage to animal human health ecosystem. In this sense, heterogeneous photocatalysis stand out as one effective cost-effective depollution technique. use metal oxide nanocomposites (MON), mixture two or more oxides between these other functional semiconductor materials, have gained increasing attention researchers industrial developers a potential alternative produce efficient environmentally friendly photocatalysts for remediation contamination by compounds. Thus, work presents an updated review main advances in nanocomposites-based decontamination polluted substances. A bibliometric analysis allowed show evolution importance research topic literature over last decade. results study also showed that hierarchical nanostructures oxides, well conducting polymers carbon currently materials synthesis MON, with better performance degradation pharmaceuticals pesticides.
Language: Английский
Citations
23
ACS Omega, Journal Year: 2024, Volume and Issue: 9(22), P. 24025 - 24038
Published: May 24, 2024
In this study, the heat transfer characteristics within exchanger using water-based GO nanofluids were comprehensively assessed. An apparatus was constructed by scaling down an industrial exchanger. The nanofluid's thermal conductivity, specific capacity, viscosity, density, Prandtl number, and Nusselt number examined at varying temperatures nanoparticle concentrations. results revealed that conductivity of nanofluid increased with both temperature concentration, reaching a peak value 0.380 W m
Language: Английский
Citations
17
Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 111901 - 111901
Published: Jan. 9, 2024
Language: Английский
Citations
12
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: April 1, 2024
Abstract The challenges in water treatment include the need for efficient removal of pollutants like nitrate, which poses significant environmental and health risks. Alumina's significance lies its proven effectiveness as an adsorbent nitrate due to high surface area affinity ions. This study delves into synthesis differen nano-sized γ-alumina (γA1-5) employing diverse precursors methods, including nepheline syenite, lime, aluminum hydroxide, precipitation, hydrothermal processes at varying reaction times. Simultaneously, magnetite (Fe 3 O 4 ) nanoparticles magnetite/γ-alumina nanocomposites (F n /γA5) were synthesized using co-precipitation method with weight ratios (n). Our primary objective was optimize by comparing multiple shedding light on influence different sources. Hence, a comprehensive adsorption conducted assess materials’ efficacy removal. fills gaps literature, providing novel perspective through simultaneous assessment magnetite/alumina pure alumina performance. Structural morphological properties studied XRD, FT-IR, FESEM, EDX, VSM techniques. experiments γA5, F 5 /γA5, 10 /γA5 showcased optimum pH contact time 45 min all samples. nitrate’s initial concentration percentage investigated concentrations ppm, 50 100 ppm. had 17.3%, 55%, 70% 18%, 55.16%, 74% 8.6%, 53.1%, 63%, respectively. results highlighted that can be used remarkable wastewater purposes.
Language: Английский
Citations
11
Catalysts, Journal Year: 2025, Volume and Issue: 15(2), P. 113 - 113
Published: Jan. 24, 2025
This study investigates the photocatalytic degradation of tetracycline hydrochloride (TCH) using a TiO2/CdS composite nanocatalyst synthesized on flexible nickel foam via dipping–pull method. By comparing TCH by with different precursor ratios, it was found that TiO2/CdS-1.43% exhibited better performance. The X-ray diffraction (XRD) pattern retains characteristic peaks both TiO2 and CdS, indicating successful formation composite. According to analysis ultraviolet–visible spectroscopy (UV–Vis), absorption edge is approximately 530 nm. transmission electron microscopy (TEM) images show Cd S evenly, densely distributed in TiO2/CdS, further validating its synthesis. photoelectron (XPS) reveals Ti elements exist forms Cd2+ Ti4+, respectively. loading uniformity assessed super-depth microscopy. removal efficiency 10 L 20 mg/L solution achieved 53.89%, respectively, under response surface methodology—Box–Behnken design (RSM–BBD) optimal conditions (28 g catalyst, 325 rpm, pH = 9.04 within 150 min). Furthermore, five successive cycling experiments demonstrated strong stability, catalyst loss only 4.44%. Finally, free radical scavenging revealed ·O2− radicals are primary active species. highlights potential composites supported for efficient antibiotic pollutants water.
Language: Английский
Citations
1
Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)
Published: Nov. 1, 2023
Natural gas stands as the most ecologically sustainable fossil fuel, constituting nearly 25% of worldwide primary energy utilization and experiencing rapid expansion. This article offers an extensive comparative analysis nano filter elements, focusing on pressure drop pollutant removal efficiency. The goal was to assess superior performance elements their suitability alternative for Town Border Station (TBS). research encompassed a six-month examination period, involving routine assessments, structural examinations, particle characterization elements. results revealed that filters showed better in adsorbing aluminum than conventional filters, possibly due cartridge composition. Nano contained phosphorus, sulfur, copper, while lacked these disparity can be attributed finer mesh filter, capturing smaller pollutants. Although had minimal silicon, some, posing concerns. Despite having 19 extra pleats, maintained flow more particles filter.
Language: Английский
Citations
21
Results in Engineering, Journal Year: 2023, Volume and Issue: 20, P. 101432 - 101432
Published: Sept. 22, 2023
The present study highlights the influence and efficacy of a self-doped carbon (C)–ZnO/TiO2 hybrid heterojunction for photocatalytic degradation ofloxacin (OFX) in aqueous media. flower-like was prepared via hydrothermal treatment at varying concentrations ZnO TiO2. C doping internally introduced to lattice by decomposition polyvinylpyrrolidone as source achieve better band alignment. A systematic investigation performed elucidate mechanism photodegradation analyzing parameters such composition, dosage, pH system. optimized sample 1:2 (Zn: Ti) ratio exhibited efficiency 99.9% OFX within 60 min, demonstrating reaction rate 1.6 times higher than that C–ZnO. Moreover, involvement charge carriers analyzed through scavenging experiments. results showed trapping superoxide anions resulted 57.8% reduction photoactivity, confirming their significant process. n-doping subsequent defects level formation supported X-ray photoelectron spectroscopy. effective extended heterojunctions proposed investigating band-gap using Tauc plot valence spectra ultraviolet verified uplift energy bands doping, strong reducing power hybrids. Additionally, liquid chromatography-mass spectroscopy employed perform identification pathway intermediates.
Language: Английский
Citations
19
Langmuir, Journal Year: 2024, Volume and Issue: 40(16), P. 8503 - 8519
Published: April 12, 2024
Today, cleaning the environment using photocatalytic technology is one of main research activities. In this study, carbon dots (C-dots) were anchored on oxygen-vacancy-enriched TiO2 quantum (QDs)/TiO2 oxygen vacancies (OVs) a facile procedure. The resultant ternary QDs/TiO2 OVs/C-dots photocatalysts with dot size almost 4.55 nm used for detoxification aqueous solutions containing four antibiotics and three organic dyes as well inactivation two pathogenic bacteria, including Escherichia coli Staphylococcus aureus, upon visible light. degradation constant tetracycline over optimized nanocomposite reached 714 × 10–4 min–1, which was 17.3, 12.1, 2.92 times higher than QDs, OVs, TQDs/TOVs (1:1) materials, respectively. Effective separation electron–hole pairs between QDs OVs counterparts through decorated C-dots by an established S-scheme system reason boosted activity. With regard to growth wheat lentil seeds in treated solutions, it hoped that significant stability could be clean up wastewaters.
Language: Английский
Citations
8