Environmental Claims Journal, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 31
Published: March 31, 2025
Language: Английский
Colloids and Surfaces B Biointerfaces, Journal Year: 2024, Volume and Issue: 242, P. 114093 - 114093
Published: July 14, 2024
Language: Английский
Citations
26
Emerging Science Journal, Journal Year: 2024, Volume and Issue: 8(1), P. 17 - 27
Published: Feb. 1, 2024
The preservation of the aquatic environment and water systems has been a fundamental objective that led great scientists researchers to seek new alternatives or techniques allow decontamination sources. plastic chromium plating industries have identified as important sources contamination since their residues are characterized by having considerable amounts hexavalent Cr (VI), which alters stability resources can affect effluents on surface subsoil. Given this problem, need improve usual methods for wastewater treatment with more effective solutions, such photocatalysis, presents significant advantages over inefficiency traditional methods, is recognized. However, given limited availability research in country addresses removal from these industries, work focuses optimizing process varying conditions variables particle size, catalyst dose, irradiation time. optimization photocatalysis was evaluated using Box-Behnken experimental design. results show contaminant occurred when size 0.177 mm. This showed highest photocatalytic activity, 100% at 45 minutes. These findings represent step towards solving problem business sector pollutant contribute preserving our resources. Doi: 10.28991/ESJ-2024-08-01-02 Full Text: PDF
Language: Английский
Citations
24
The Chemical Record, Journal Year: 2025, Volume and Issue: unknown
Published: March 4, 2025
Abstract The escalating global waste crisis necessitates innovative solutions. This study investigates the sustainable production of nanocellulose from biomass and its biomedical applications. Cellulose‐rich materials–including wood, textiles, agricultural residues, food by‐products–were systematically processed using alkaline, acid, oxidative pretreatments to enhance fiber accessibility. Mechanical techniques, such as grinding homogenization, combined with chemical methods like acid hydrolysis 2,2,6,6‐Tetramethylpiperidin‐1‐yl‐oxyl (TEMPO) oxidation, were employed successfully isolate nanocellulose. Post‐treatment modifications, including surface coating cross‐linking, further tailored properties for specific results demonstrated nanocellulose's biocompatibility, biodegradability, functional versatility. In wound healing, it enhanced moisture management exhibited antimicrobial properties. Its high area facilitated efficient drug loading controlled release in delivery Nanocellulose bioinks supported cell proliferation 3D bioprinting tissue engineering. Additional applications biosensors personal care products also identified. advances materials science, aligning resource conservation circular economy principles address sector needs.
Language: Английский
Citations
2
Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102274 - 102274
Published: May 15, 2024
The indiscriminate release of chromium-saturated effluent into water bodies has raised concerns regarding its effect on human health and environmental ecology. Therefore, this research aimed to remove hexavalent chromium from an aqueous solution utilizing activated carbon developed Rumex abyssinicus. adsorbent was prepared through chemical impregnation with H3PO4 then thermally at 500 for 2 h. optimization the adsorption experiments performed using Box‒Behnken approach response surface methodology. characterization revealed good quality in terms amorphous structure, maximum specific area 1722.9 m2/g porous surface. Furthermore, results showed that a removal efficiency 95.97% attained optimum working pH 3, contact time 60 min, initial concentration 70 mg/L dosage 0.6 mg/100 mL. Langmuir isotherm model found have best fit experimental data. Moreover, kinetics study pseudo-second-order data best, indicating occurrence chemisorption. Overall, suggested abyssinicus could be effective removing solutions.
Language: Английский
Citations
14
Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 366, P. 121682 - 121682
Published: July 10, 2024
In this research, spent coffee grounds (SCG) are converted into a highly valuable porous adsorbent which removes chromium (VI) from wastewater with high efficiency. A set of nine Spent Coffee Ground Activated Carbon (SCG-AC) samples were synthesized, by varying key parameters including pyrolysis temperature (400, 600 °C), duration (1 and 2 h), the impregnation ratio activating agent, KOH (ranging 0:1 to 2:1). Characterizations these conducted advanced analytical tools SEM, EDX, XRD, FTIR, TGA, BET. Furthermore, we carried out adsorption studies, exploring effects dosage variations. Additionally, point zero charge experiments desorption studies further understand process. The outcomes our investigation demonstrate successful synthesis ground-derived adsorbents, yield up 34%. Notably, adsorbents exhibited efficiency in extracting water, removal efficiencies ranging 75% 100%. isotherms revealed Langmuir model be most fitting descriptor behavior. Moreover, thermodynamics study process endothermic nature furthers understanding underlying mechanisms. Importantly, cost assessment shows economic advantage synthesized over commercial counterparts such as zeolite, making it competitive choice for real-world applications. summation, not only introduces an innovative sustainable utilization but also delivers in-depth exploration adsorbent's ability removal. Our holistic approach, encompassing thorough experimentation, characterization, evaluation, solidifies significance research tackling environmental concerns propelling advancements treatment methodologies.
Language: Английский
Citations
10
Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 8, 2025
Language: Английский
Citations
1
Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: March 24, 2025
A three-dimensional porous aerogel was synthesized by combining soft chitosan oligosaccharide to hard multi-walled carbon nanotubes (MWCNTs) under mild conditions. Owing the support of MWCNTs, mesopores can be detected on inner surfaces aerogel. The cross-linking tetraethylenepentamine forms a macropore structure after freeze drying, using water as template. hydrogel bear 30% recoverable compression with aid hydrogen bonds between amide groups. exhibits excellent adsorption capabilities for Cr(VI) in water. capacity reach 367.6 mg/g within 100 min. Notably, demonstrated an extremely high efficiency removal trace Cr(VI). Soluble 1 mg/L completely removed at dosage 0.2 g/L. This work provides new strategy synthesize adsorbents hierarchical pores that exhibit porosity and fast mass transfer rate.
Language: Английский
Citations
1
Journal of Food Composition and Analysis, Journal Year: 2023, Volume and Issue: 121, P. 105396 - 105396
Published: May 15, 2023
Language: Английский
Citations
22
Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(5), P. 105746 - 105746
Published: March 20, 2024
Heavy metals in water bodies pose a significant threat to both ecology and human well-being. Therefore, the development of green sustainable adsorbents for remediation is essential. This study presents crosslinked chitosan composite structure with multiple layers, which was generated by adjusting ratio wheat straw–derived magnetic biochar composite. The adsorption behavior under different conditions revealed varying Cr(VI) concentration, pH, temperature. exhibited maximum 121.8 mg g−1 water, 11.9 times higher than that biochar. It maintained residual performance 78.6 % after seven cycles, most chitosan-based composites. reusability improved via hydrochloric acid protonation functional groups layer-by-layer exposure structure. provides new insights into application composites derived from straw, an agricultural waste, as adsorbents.
Language: Английский
Citations
8
Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 46, P. 104175 - 104175
Published: March 1, 2024
Language: Английский
Citations
7