Fast adsorption of methylene blue and crystal violet from aqueous solution by sustainable biosorbent (pine needle of Pinus nigra Arn.): Kinetics, equilibrium, and thermodynamics study DOI Open Access
Talip Turna

The Canadian Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Abstract Methylene blue (MB) and crystal violet (CV) dyes, which are toxic to the ecosystem, were removed by Pinus nigra Arn. tree ( Pn A.) waste needle powders (Ptwnd), is a natural, easily available, cheap adsorbent. The physicochemical composition of Ptwnd was carried out Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) energy dispersive X‐ray (EDX), thermogravimetry–differential thermal analysis (TGA‐DTA), UV–vis spectroscopy, diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area, point zero charge (pH pzc ). In adsorption studies, effects pH, adsorbent amount, time, initial dye concentration, temperature determined. results tested kinetics (pseudo first order [PFO], pseudo second [PSO], Elovich, intra‐particle diffusion [I‐PD]) isotherm (Freundlich, Langmuir, Temkin, Dubinin–Radushkevich [D‐R]) models with 5 different error functions. Accordingly, average pore diameter pH value measured as 68.87 Å 6.13, respectively. Also, mass loss 4.6%–28.7% 24.3% at three temperatures 121.2–533.5°C 766.2°C, mechanism endothermic, removal efficiencies exceeded 99% in 10 min. most suitable determined be Langmuir PSO for both Maximum capacity q max ) calculated 95.767 (for MB) 151.657 CV) mg/g this study, very promising achieved two dyes from water biosorbent obtained pine needles, we think will contribute sustainability forest ecosystem.

Language: Английский

Selenium-based nanomaterials: green and conventional synthesis methods, applications, and advances in dye degradation DOI Creative Commons
Nilmadhab Roy,

T. Nivedya,

Priyankar Paira

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(4), P. 3008 - 3025

Published: Jan. 1, 2025

The rapidly expanding industrialization and global increase in economic activities have drawn attention to the concerning accumulation of waste. textile industry plays a significant role environmental pollution, especially water pollution. Harmful dyes used during fabrication process are mixed with bodies through sewage or wastewater ejected from industrial factories. These toxic not only applied industries but also other like pharmaceutical companies rubber manufacturing. Therefore, scientists adopted alternative techniques for degradation organic because eliminating drawbacks traditionally techniques. Catalytic help safe easy nanocatalyst is one best alternatives. Accordingly, use biomaterials waste materials offers an easy, cost-effective eco-friendly approach synthesis such nanocatalysts. Several nanocatalysts been present wastewater. well-known semi-conductor selenium has several important properties, viz., optoelectronic, photovoltaic, thermoconductivity, anisotropy, research its catalytic application dye degradation. Considering all these points, nanoparticles synthesized via green provide possible catalyst current review covers various aspects biosynthesis nanoparticles; their as harmful dyes, methylene blue, methyl orange, rhodamine B, alizarin S, malachite green, sunset yellow, fuchsin, safranin T, Congo red, bromothymol blue; mechanism process. This will shed light on importance using chemistry towards different procedures explores interesting activity mechanism. Hence this article be beneficial both industrialists acdemicians bridging gap between academic sceintists.

Language: Английский

Citations

3
Eco‐Friendly Synthesis of Selenium Nanoparticles via Sternbergia candida: Enhancing Antioxidant Defense and Mitigating Salt Stress in Pepper (Capsicum annuum L.) Plants DOI Creative Commons
Senem Kanber, Mahmut Yıldıztekin, Mehmet Fırat Baran

et al.

ChemistryOpen, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Nanoparticles enhance agricultural applications with their bioactivity, bioavailability, and reactivity. Selenium mitigates the adverse effects of salinity on plant growth, boosting antioxidant defense, metabolism, resilience to abiotic stress. Our study applied selenium nanoparticles mitigate salinity‐induced damage support growth. We characterized green‐synthesized analyzed stress‐related metabolites, activities (DPPH, ABTS), phenolic content, reducing powers (CUPRAC, FRAP). Nanoparticle reduced proline MDA levels while chlorophyll, carotenoids, activity total content. An increase was also observed in CUPRAC FRAP capacities. In terms highest value determined SA 1 (4.58±0.40 mg GAE g −1 ) application; DPPH free radical scavenging IC50 A 3 (0.13±0.007 mL application, which closest positive control. The lowest level found (15.00±0.64 nmol FW) (10.08±0.42 ). Comparing results, green synthesis using Sternbergia candida (SC‐SeNP) at different concentrations showed ameliorative various parameters plants, it that salt stress pepper plants were following SC‐SeNP applications.

Language: Английский

Citations

0
Comprehensive Investigation of Prunus armeniaca for Natural Green Synthesis of Carbon Quantum Dots; Applications as Fluorescent Nano-probes for Ramipril DOI
Baher I. Salman, Hany A. Batakoushy, Roshdy E. Saraya

et al.

Talanta, Journal Year: 2025, Volume and Issue: unknown, P. 128014 - 128014

Published: March 1, 2025

Language: Английский

Citations

0
Fast adsorption of methylene blue and crystal violet from aqueous solution by sustainable biosorbent (pine needle of Pinus nigra Arn.): Kinetics, equilibrium, and thermodynamics study DOI Open Access
Talip Turna

The Canadian Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Abstract Methylene blue (MB) and crystal violet (CV) dyes, which are toxic to the ecosystem, were removed by Pinus nigra Arn. tree ( Pn A.) waste needle powders (Ptwnd), is a natural, easily available, cheap adsorbent. The physicochemical composition of Ptwnd was carried out Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) energy dispersive X‐ray (EDX), thermogravimetry–differential thermal analysis (TGA‐DTA), UV–vis spectroscopy, diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area, point zero charge (pH pzc ). In adsorption studies, effects pH, adsorbent amount, time, initial dye concentration, temperature determined. results tested kinetics (pseudo first order [PFO], pseudo second [PSO], Elovich, intra‐particle diffusion [I‐PD]) isotherm (Freundlich, Langmuir, Temkin, Dubinin–Radushkevich [D‐R]) models with 5 different error functions. Accordingly, average pore diameter pH value measured as 68.87 Å 6.13, respectively. Also, mass loss 4.6%–28.7% 24.3% at three temperatures 121.2–533.5°C 766.2°C, mechanism endothermic, removal efficiencies exceeded 99% in 10 min. most suitable determined be Langmuir PSO for both Maximum capacity q max ) calculated 95.767 (for MB) 151.657 CV) mg/g this study, very promising achieved two dyes from water biosorbent obtained pine needles, we think will contribute sustainability forest ecosystem.

Language: Английский

Citations

0