The role of green nanomaterials as effective adsorbents and applications in wastewater treatment

Neeti, Krishna; Singh, Reena; Ahmad, Shaz

doi:10.1016/j.matpr.2022.11.300

Cited by 15 publications

(4 citation statements)

References 41 publications

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“…76 Saponins enhance the activities of various antioxidant enzymes such as catalases and superoxide dismutase, which is usually lowered in hyperglycemic conditions. 77 The various plant extracts are cost-effective, safe, and environmentally benign for the creation of NPs, 78,79 So in the present project KE-AgNPs were successfully synthesized from KE extract via green processing. Standardizations was done for the biosynthesis of KE-AgNPs in terms of extract concentration, AgNO 3 salt molarity, temperature, time, stability period, and pH value.…”

Section: Discussionmentioning

confidence: 98%

Bio‐fabrication and characterization of nano‐silver using Kickxia elatine plant and its anti‐diabetic effect on alloxan‐induced Sprague Dawley rats — An in vivo approach

Huda,

Ahmed,

Mushtaq

2023

Applied Organom Chemis

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Diabetes mellitus (DM) is one of the most prevalent, fatal, and non‐contagious diseases. Therefore, researchers are making attempts to develop novel anti‐diabetic drugs using various organic compounds and biomolecules. The idea of using nano‐materials as anti‐diabetic agents seems interesting. The current study aims to develop Kickxia elatine (KE) extract‐based nano‐silver (KE‐AgNPs) and to evaluate their in vivo anti‐diabetic potency in female Sprague Dawley rats. KE‐AgNPs were characterized using UV spectroscopy, X‐ray diffractometer (XRD), scanning electron microscopy (SEM), Electron Diffraction X‐ray Spectroscopy (EDX), and Fourier transforms infrared (FTIR) techniques. The crystalline nature of KE‐AgNPs with a size of 42.47 nm is confirmed by XRD screening. Spherical‐shaped mono‐dispersed KE‐AgNPs with a mean size of 50 nm are validated by SEM examination. The different phyto‐compounds (tannins, alkaloids, flavonoids, proteins, saponins, phenols, carbohydrates, quinones, sterols, fats, and oils) that contribute to the stabilization and reduction of KE‐AgNPs are confirmed by FTIR analysis. EDX showed a strong peak (3.2 keV) that identified Ag as the main component with a 61.67% contribution. The use of Alloxan to induce diabetes resulted in elevated levels of blood sugar, HbA1c, liver, and lipid profile, as well as a drastic reduction in body weight, body organ weight, and Hemoglobin. These modifications were switched following 21 days of treatment of diabetic rats, and a dosage range of 150–450 mg kg−1 BW of KE extract and KE‐AgNPs demonstrated significant inhibition as compared with the diabetic untreated group. The phytochemical analysis of the KE plant was also assessed to examine the phyto‐compounds involved in the anti‐diabetic potential of KE extract and KE‐AgNPs. These findings suggested that, in comparison with the KE extract, KE‐AgNPs have demonstrated promising anti‐diabetic action.

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Section: Discussionmentioning

confidence: 98%

Bio‐fabrication and characterization of nano‐silver using Kickxia elatine plant and its anti‐diabetic effect on alloxan‐induced Sprague Dawley rats — An in vivo approach

Huda,

Ahmed,

Mushtaq

2023

Applied Organom Chemis

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“…They ground the dried leaves into a powder and extracted the leaf extract with ethanol. The leaf extracts were mixed with titanium tetraisopropoxide at 50 °C to produce TiO2 nanoparticles [13,14]. This method can reduce the cost and is also an environmentally friendly synthetic method.…”

Section: Photocatalysismentioning

confidence: 99%

Application of Nanomaterials in Wastewater Treatment

Feng

2023

MATEC Web Conf.

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Water scarcity is one of the current problems that people need to solve, and wastewater treatment is one of the effective ways to solve it. However, traditional wastewater treatment methods are inefficient, and pollutants cannot be removed entirely. Nanotechnology can effectively address the above issues and its application in wastewater treatment has been researched extensively. This paper introduces nano-adsorbents, nano-photocatalysts and nanomembranes, which are all considered to have a promising prospect in wastewater treatment. Nano-adsorbents are classified as carbon-based nanomaterials, metalbased nanomaterials, nano-polymer and nano-zeolite adsorbents depending on the type of materials, mainly for adsorbing heavy metal ions. Nano-photocatalysts are good at removing bacteria and dyes from water and titanium dioxide (TiO2) is the commonly used material. Nanomembranes are divided into nanofiltration membranes, nanocomposite membranes, nanofiber membranes and aquaporin biomimetic membranes. Metal ions and organic pollutants can be separated by adding different materials into the membrane. The addition of molecular receptors to nanofiber membranes could use in the selective separation of some ions. The recovery of used nano-adsorbents and fouling resistance of nanomembranes are currently the main challenges for nanotechnology in wastewater treatment

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“…However, thin-layer catalysts have in that they are prone to abrasion and need expensive equipment, which can raise production costs and limitations in precisely controlling film thickness (Abid et al, 2022). The thin layer has a more homogenous surface in this application because the catalyst may degrade chemical compounds in wastewater, making it more ecologically friendly (Neeti et al, 2023). The usage of local materials was highly helpful in this study because it includes numerous impurity atoms and was predicted to lower the energy bandgap's width, allowing the final alloy to absorb all spectrums of sunlight.…”

Section: Photocatalyst Activitiesmentioning

confidence: 99%

Synthesis and Characterization of Photocatalyst Nanocomposite for the Degradation of Organic Pollutants in Wastewater

Ratnawulan,

Rahmadhani,

Fauzi

et al. 2023

J. Ecol. Eng.

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Various efforts can be made to obtain clean water in the environment by utilizing semiconductor technology. This study aims to inform the synthesis and characterization of MnO 2 /CuO/Fe 2 O 3 photocatalyst for crystal violet degradation in wastewater. Nanocomposite was synthesized through a sol-gel process with three semiconductor materials doped. X-ray diffraction (XRD) was employed to analyze the nanocomposite structure and determine crystal size. Fourier transform infrared (FTIR) was used to provide functional groups in the nanocomposite. A scanning electron microscope (SEM) can characterize surface morphology and particle size. The results of the SEM show that an increase in sintering temperature causes the smallest particle sizes to be 54.79 nm. The result of characterization using the ultraviolet-visible (Uv-Vis) spectrophotometry analysis the most effective band gap value in photocatalyst activity was 1.36 eV. The optimum percent of degradation MnO 2 /CuO/Fe 2 O 3 catalyst was 50.40% for the sample at a temperature of 400 °C under irradiation with sunlight for six hours. Test results show that increased sintering temperature increased the photocatalytic activity.

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The role of green nanomaterials as effective adsorbents and applications in wastewater treatment

Cited by 15 publications

References 41 publications

Bio‐fabrication and characterization of nano‐silver using Kickxia elatine plant and its anti‐diabetic effect on alloxan‐induced Sprague Dawley rats — An in vivo approach

Bio‐fabrication and characterization of nano‐silver using Kickxia elatine plant and its anti‐diabetic effect on alloxan‐induced Sprague Dawley rats — An in vivo approach

Application of Nanomaterials in Wastewater Treatment

Synthesis and Characterization of Photocatalyst Nanocomposite for the Degradation of Organic Pollutants in Wastewater

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