Antioxidant Activities of Photoinduced Phycogenic Silver Nanoparticles and Their Potential Applications DOI Creative Commons

Vijayakumar Maduraimuthu,

Jayappriyan Kothilmozhian Ranishree,

Raja Mohan Gopalakrishnan

и другие.

Antioxidants, Год журнала: 2023, Номер 12(6), С. 1298 - 1298

Опубликована: Июнь 18, 2023

While various methods exist for synthesizing silver nanoparticles (AgNPs), green synthesis has emerged as a promising approach due to its affordability, sustainability, and suitability biomedical purposes. However, is time-consuming, necessitating the development of efficient cost-effective techniques minimize reaction time. Consequently, researchers have turned their attention photo-driven processes. In this study, we present photoinduced bioreduction nitrate (AgNO3) AgNPs using an aqueous extract Ulva lactuca, edible seaweed. The phytochemicals found in seaweed functioned both reducing capping agents, while light served catalyst biosynthesis. We explored effects different intensities wavelengths, initial pH mixture, exposure time on biosynthesis AgNPs. Confirmation AgNP formation was achieved through observation surface plasmon resonance band at 428 nm ultraviolet-visible (UV-vis) spectrophotometer. Fourier transform infrared spectroscopy (FTIR) revealed presence algae-derived bound outer synthesized Additionally, high-resolution transmission electron microscopy (HRTEM) atomic force (AFM) images demonstrated that NPs possessed nearly spherical shape, ranging size from 5 40 nm. crystalline nature confirmed by selected area diffraction (SAED) X-ray (XRD), with Bragg's pattern revealing peaks 2θ = 38°, 44°, 64°, 77°, corresponding planes 111, 200, 220, 311 face-centered cubic crystal lattice metallic silver. Energy-dispersive (EDX) results exhibited prominent peak 3 keV, indicating Ag elemental configuration. highly negative zeta potential values provided further confirmation stability Moreover, reduction kinetics observed via UV-vis spectrophotometry superior photocatalytic activity degradation hazardous pollutant dyes, such rhodamine B, methylene orange, Congo red, acridine Coomassie brilliant blue G-250. our biosynthesized hold great redox applications.

Язык: Английский

Chitosan functionalized bismuth oxychloride/zinc oxide nanocomposite for enhanced photocatalytic degradation of Congo red DOI
Ranjithkumar Rajamani, Chi Văn Nguyên, Ling Shing Wong

и другие.

International Journal of Biological Macromolecules, Год журнала: 2022, Номер 225, С. 103 - 111

Опубликована: Дек. 5, 2022

Язык: Английский

Процитировано

34
Facile Synthesis and Characterizations of Mixed Metal Oxide Nanoparticles for the Efficient Photocatalytic Degradation of Rhodamine B and Congo Red Dyes DOI Creative Commons
Ehab A. Abdelrahman, Eida S. Al‐Farraj

Nanomaterials, Год журнала: 2022, Номер 12(22), С. 3992 - 3992

Опубликована: Ноя. 12, 2022

Photocatalytic degradation has been suggested to be a cheap and efficient way dispose of organic pollutants, such as dyes. Therefore, our research team strives produce nanophotocatalysts in simple inexpensive way. In this work, the Pechini sol-gel technique was employed for facile synthesis Mn0.5Zn0.5Fe2O4/Fe2O3 Fe0.5Mn0.5Co2O4/Fe2O3 mixed metal oxide nanoparticles photocatalytic Rhodamine B Congo Red XRD, FT-IR, N2 adsorption/desorption analyzer, EDS, FE-SEM, an UV-Vis diffuse reflectance spectrophotometer were used characterize produced samples. The XRD patterns revealed that average crystallite size samples is 90.25 80.62 nm, respectively. FE-SEM images sample consists cubic irregular shapes with diameter 1.71 µm. Additionally, spherical 0.26 energy gaps are 3.50 4.3 eV 3.52 4.20 eV, presence hydrogen peroxide, complete 100 mL 20 mg/L dyes occurred at pH = 8 3, respectively, within 50 min, using 0.1 g synthesized

Язык: Английский

Процитировано

32
Insights into remediation technology for malachite green wastewater treatment DOI Creative Commons
Peter Olusakin Oladoye, Timothy O. Ajiboye, Wycliffe Chisutia Wanyonyi

и другие.

Water Science and Engineering, Год журнала: 2023, Номер 16(3), С. 261 - 270

Опубликована: Март 16, 2023

Malachite green (MG) dye is a common industrial and organic contaminant that can be found in (waste)water. Textile food industries make use of MG as dyeing coloring agents, respectively. However, both genotoxic mutagenic. Hence, the elimination from MG-laden-wastewater germane. This review summarizes up-to-date researches have been reported literature regards decontamination toxic wastewater. Various removal methods (adsorption, membrane, Fenton system, heterogenous homogeneous photodegradation) were discussed. Of two basic technologies are comprehensively explored reviewed, chemical treatment not viable physical methods, such adsorption technology, due to lack secondary pollutant production, simple design, low operation costs, resource availability. also presents various practical knowledge gaps needed for large-scale applications adsorptive MG. It concludes by recommending further research on techniques cheap get clean water.

Язык: Английский

Процитировано

22
Carbon dots as potential candidate for photocatalytic treatment of dye wastewater DOI

Tripti Tripti,

Permender Singh,

Neeru Rani

и другие.

Environmental Science and Pollution Research, Год журнала: 2023, Номер 31(5), С. 6738 - 6765

Опубликована: Дек. 29, 2023

Язык: Английский

Процитировано

22
Antioxidant Activities of Photoinduced Phycogenic Silver Nanoparticles and Their Potential Applications DOI Creative Commons

Vijayakumar Maduraimuthu,

Jayappriyan Kothilmozhian Ranishree,

Raja Mohan Gopalakrishnan

и другие.

Antioxidants, Год журнала: 2023, Номер 12(6), С. 1298 - 1298

Опубликована: Июнь 18, 2023

While various methods exist for synthesizing silver nanoparticles (AgNPs), green synthesis has emerged as a promising approach due to its affordability, sustainability, and suitability biomedical purposes. However, is time-consuming, necessitating the development of efficient cost-effective techniques minimize reaction time. Consequently, researchers have turned their attention photo-driven processes. In this study, we present photoinduced bioreduction nitrate (AgNO3) AgNPs using an aqueous extract Ulva lactuca, edible seaweed. The phytochemicals found in seaweed functioned both reducing capping agents, while light served catalyst biosynthesis. We explored effects different intensities wavelengths, initial pH mixture, exposure time on biosynthesis AgNPs. Confirmation AgNP formation was achieved through observation surface plasmon resonance band at 428 nm ultraviolet-visible (UV-vis) spectrophotometer. Fourier transform infrared spectroscopy (FTIR) revealed presence algae-derived bound outer synthesized Additionally, high-resolution transmission electron microscopy (HRTEM) atomic force (AFM) images demonstrated that NPs possessed nearly spherical shape, ranging size from 5 40 nm. crystalline nature confirmed by selected area diffraction (SAED) X-ray (XRD), with Bragg's pattern revealing peaks 2θ = 38°, 44°, 64°, 77°, corresponding planes 111, 200, 220, 311 face-centered cubic crystal lattice metallic silver. Energy-dispersive (EDX) results exhibited prominent peak 3 keV, indicating Ag elemental configuration. highly negative zeta potential values provided further confirmation stability Moreover, reduction kinetics observed via UV-vis spectrophotometry superior photocatalytic activity degradation hazardous pollutant dyes, such rhodamine B, methylene orange, Congo red, acridine Coomassie brilliant blue G-250. our biosynthesized hold great redox applications.

Язык: Английский

Процитировано

20