Green synthesis of anatase titanium dioxide nanoparticles using Cuminum cyminum seed extract; effect on Mung bean (Vigna radiata) seed germination

Mathew, Sneha Susan; Sunny, Nisha Elizabeth; Shanmugam, VenkatKumar

doi:10.1016/j.inoche.2021.108485

Cited by 47 publications

(17 citation statements)

References 17 publications

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“…The particle size distribution (PSD) is shown in Figure 6f and indicates that the average particle size (PS) of the as-prepared TiO 2 nanoparticles was 34.89 ± 3.37 nm. The obtained data further confirm the findings of BET, SEM, and EDS analyses [53,54].…”

Section: Pore Structure Characterization Of the Prepared Adsorbentssupporting

confidence: 88%

Biochar of Spent Coffee Grounds as Per Se and Impregnated with TiO2: Promising Waste-Derived Adsorbents for Balofloxacin

2021

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Biochars (BC) of spent coffee grounds, both pristine (SCBC) and impregnated with titanium oxide (TiO2@SCBC) were exploited as environmentally friendly and economical sorbents for the fluroquinolone antibiotic balofloxacin (BALX). Surface morphology, functional moieties, and thermal stabilities of both adsorbents were scrutinized using SEM, EDS, TEM, BET, FTIR, Raman, and TG/dT analyses. BET analysis indicated that the impregnation with TiO2 has increased the surface area (50.54 m2/g) and decreased the pore size and volume. Batch adsorption experiments were completed in lights of the experimental set-up of Plackett–Burman design (PBD). Two responses were maximized; the % removal (%R) and the adsorption capacity (qe, mg/g) as a function of four variables: pH, adsorbent dosage (AD), BALX concentration ([BALX]), and contact time (CT). %R of 68.34% and 91.78% were accomplished using the pristine and TiO2@SCBC, respectively. Equilibrium isotherms indicated that Freundlich model was of a perfect fit for adsorption of BALX onto both adsorbents. Maximum adsorption capacity (qmax) of 142.55 mg/g for SCBC and 196.73 mg/g for the TiO2@SCBC. Kinetics of the adsorption process were best demonstrated using the pseudo-second order (PSO) model. The adsorption-desorption studies showed that both adsorbents could be restored with the adsorption efficiency being conserved up to 66.32% after the fifth cycles.

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Section: Pore Structure Characterization Of the Prepared Adsorbentssupporting

confidence: 88%

Biochar of Spent Coffee Grounds as Per Se and Impregnated with TiO2: Promising Waste-Derived Adsorbents for Balofloxacin

2021

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“…In this study, titanium dioxide nanoparticles (TiO2NPs) were successfully synthesized using an aqueous extract of pomegranate peel and coffee residue as a reducing and stabilizing agent source, and the pure anatase form of titanium dioxide was confirmed by different characterization techniques. The color change noticed during the synthesis of TiO2NPs has been reported for similar studies when extracts from diverse types of plant parts were used [27,28]. The change in color is attributed to the gradual reduction of Ti +2 to Ti 0 [27].…”

Section: Discussionsupporting

confidence: 70%

“…The color change noticed during the synthesis of TiO2NPs has been reported for similar studies when extracts from diverse types of plant parts were used [27,28]. The change in color is attributed to the gradual reduction of Ti +2 to Ti 0 [27].…”

Section: Discussionsupporting

confidence: 70%

Integrated Approaches for Adsorption and Incorporation Testing of Green-Synthesized TiO2NPs Mediated by Seed-Priming Technology in Punica granatum L.

et al. 2022

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Seed priming is a novel approach that is undertaken to improve seed germination and therefore potentially enhance growth and yield. Low-cost, eco-friendly, and efficient seed treatment as a means of enhancing growth and yield is still being sought for high-value crops such as pomegranates (Punica granatum L.), particularly in areas situated at high altitudes such as the Taif region. The uptake of nanoparticles (NPs) by plants provides a potential pathway for NP exposure. Therefore, it is imperative to understand NP uptake via seed priming and their unique properties within plants. In the present study, titanium dioxide nanoparticles (TiO2NPs) were green-synthesized and utilized as priming agents for pomegranate seeds at a concentration of 40 mg/mL for 24 h. The adsorption of NPs was verified by scanning electron microscopy (SEM) and energy dispersive X-ray analysis/spectroscopy (EDX), while their incorporation was detected by transmission electron microscopy (TEM). To validate the EM results, X-ray fluorescence (XRF) and inductively coupled plasma optical emission spectroscopy (ICP–OES) techniques were further undertaken. The results confirmed the successful synthesis of pure anatase TiO2NPs by employing aqueous extracts of pomegranate fruit peel (PPE) and coffee ground beans (CE). All of the analytical techniques employed in this research confirmed the incorporation of TiO2NPs inside seeds, even after storage during priming treatment. This study lays the foundation for future sustainable seed technologies in terms of crop productivity and seed germination.

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“…Owing to their high surface area to volume ratio, nanoparticles have distinctive and superior physical and chemical properties as compared to their bulk counterparts. [1] Hence, nanoparticles have found practical applications in diverse fields including biology, medicine, [2][3][4][5][6][7][8][9][10][11][12][13][14] biotechnology, chemistry, physics, agriculture, electronics, material sciences, [15][16][17][18][19] and hydrogen storage. [20] They play a notable role as nano-catalysts, [21][22][23][24][25][26][27][28][29][30][31] nano-adsorbents, and environmentremediating agents.…”

Section: Introductionmentioning

confidence: 99%

Eco‐Friendly Synthesis of Iron Nanoparticles Using Green Tea Extract: Characterization and Evaluation of Their Catalytic, Anti‐oxidant and Anti‐bacterial Potentials

2023

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The green route for the synthesis of metal nanoparticles has emerged as a promising pathway due to its simple, non‐toxic, low‐cost, and environment‐friendly nature. In this study, eco‐friendly iron nanoparticles were successfully synthesized from the extract of green tea leaves. The synthesized nanoparticles were characterized by UV‐Visible, FT‐IR, SEM, EDX, TEM, and XRD techniques. The morphological analysis of the nanoparticles by SEM and TEM studies revealed that they were spherical in shape with particle size in the 30–70 nm range. The XRD investigation established the amorphous nature of the nanoparticles. The role of the phytochemicals of the tea extract as the reducing and stabilizing agents for the nanoparticles was confirmed by the FT‐IR analysis. The iron nanoparticles exhibited significant catalytic potential in the degradation of organic dyes‐ malachite green and methylene blue. The reactions followed pseudo‐first‐order kinetics and the percent degradation of 85.20 % for malachite green and 89.42 % for methylene blue was achieved in 20 min. and 10 min. respectively. The nano‐catalyst was reusable for three consecutive cycles of degradation reaction without any significant loss in its activity. The anti‐oxidant activity of the nanoparticles was studied by the DPPH assay wherein the nanoparticles exhibited a promising free radical scavenging ability of about 77 % with the IC50 value of 589.70 μg/mL. The anti‐bacterial activity of the nanoparticles was analyzed by the agar well diffusion method against four bacterial strains: gram‐positive Staphylococcus aureus, Bacillus subtilis, and gram‐negative Escherichia coli, Pseudomonas aeruginosa. The zones of inhibition and the Minimum Inhibitory Concentration (MIC) values of the nanoparticles were determined. The nanoparticles showed moderate toxicity against all the tested bacterial strains. The synthesis of the iron nanoparticles was rapid and simple and the results of the investigated applications were significant and promising.

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Green synthesis of anatase titanium dioxide nanoparticles using Cuminum cyminum seed extract; effect on Mung bean (Vigna radiata) seed germination

Cited by 47 publications

References 17 publications

Biochar of Spent Coffee Grounds as Per Se and Impregnated with TiO2: Promising Waste-Derived Adsorbents for Balofloxacin

Biochar of Spent Coffee Grounds as Per Se and Impregnated with TiO2: Promising Waste-Derived Adsorbents for Balofloxacin

Integrated Approaches for Adsorption and Incorporation Testing of Green-Synthesized TiO2NPs Mediated by Seed-Priming Technology in Punica granatum L.

Eco‐Friendly Synthesis of Iron Nanoparticles Using Green Tea Extract: Characterization and Evaluation of Their Catalytic, Anti‐oxidant and Anti‐bacterial Potentials

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