Biosynthesis of SiO2 nanoparticles using extract of Nerium oleander leaves for the removal of tetracycline antibiotic

Messaoudi, Noureddine El; Khomri, Mohammed El; Ablouh, El‐Houssaine; Bouich, Amal; Lacherai, Abdellah; Jada, Amane; Lima, Éder C.; Sher, Farooq

doi:10.1016/j.chemosphere.2021.132453

Cited by 71 publications

(12 citation statements)

References 71 publications

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“…n Mn 2 O 3 has a bit higher TC adsorption capability than p SiO 2 , and it can remove 23 mg·g –1 TC at 48 h. When using the porous mosaic-like Mn 2 O 3 / p SiO 2 nanocomposite as an adsorbent, the TC adsorption amount grows continuously with the reaction time increasing and then reaches 142 mg·g –1 at 48 h. The removal efficiency of TC at 48 h by Mn 2 O 3 / p SiO 2 (89%) is much higher than those by p SiO 2 (8%) and n Mn 2 O 3 (14%) (Figure b). Moreover, Mn 2 O 3 / p SiO 2 shows comparable adsorption performance to other adsorbents reported in the literature (Figure c). ,− …”

Section: Results and Discussionsupporting

confidence: 70%

Porous Mn₂O₃/pSiO₂ Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Zhang

Wang

et al. 2022

ACS Appl. Nano Mater.

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In this study, manganese sesquioxide (Mn 2 O 3 ) nanoparticles (NPs) were inserted into porous silica (pSiO 2 ) and thus a mosaic-like porous composite of Mn 2 O 3 / pSiO 2 was constructed by a bio-templating route. Structure and morphology analyses reveal the successful assembly and high dispersion of Mn 2 O 3 NPs on the matrix of porous SiO 2 . Because of the presence of a porous structure and high number of accessible active sites, the resulting Mn 2 O 3 /pSiO 2 exhibits both large adsorption capacity and remarkable catalytic activity for the removal of tetracycline (TC, 80 mg•L −1 ) from aqueous solutions. With the assistance of H 2 O 2 , Mn 2 O 3 /pSiO 2 could synergistically degrade TC with a total removal efficiency (RE) of 80%, which is much greater than those of pSiO 2 (13%) and nMn 2 O 3 (63%). Meanwhile, Mn 2 O 3 /pSiO 2 possesses a wide pH application range (3.0−11.0, RE > 83%), quite good efficiency (64%) for highly concentrated TC (240 mg•L −1 ), and excellent reusability (RE = 70% after four cycles). Radical-trapping tests and electrochemical measurements reveal that a direct electron transfer pathway plays the dominant role in this TC−Mn 2 O 3 /pSiO 2 − H 2 O 2 catalytic system. This study provides a convenient and effective strategy to design porous composite adsorbents/catalysts for the remediation of antibiotic wastewater.

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Section: Results and Discussionsupporting

confidence: 70%

Porous Mn₂O₃/pSiO₂ Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Zhang

Wang

et al. 2022

ACS Appl. Nano Mater.

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“…Temperature is also one of the most critical parameters that could significantly affect the adsorption behavior of pollutants (El Messaoudi et al, 2022). In this context, the effect of temperature on the adsorption capacities of TZ on BC and MgO NPs, and BC@MgO NPs was studied in the range 20-40 °C at C0=100 mg L −1 , BC dose=0.6 g L -1 , MgO NPs dose=0.5 g L -1 , BC@MgO NPs dose=0.4 g L -1 , t=50 min and pH=4.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Hydrothermally engineered Eriobotrya japonica leaves/MgO nanocomposites with potential applications in wastewater treatment

Messaoudi

Khomri

Fernine

et al. 2022

Groundwater for Sustainable Development

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“…4 Sulfonated graphene nanosheets (S-GNC). 5 Graphene-like nanoflakes (GNFs). 1 Pristine graphene (PG) with N 2(g) annealing at 800 • C. 2 Nitrogen-doped graphene (NG) with NH 3(g) annealing at 800 • C. 3 Graphene nanosheets (GNS).…”

Section: Performancementioning

confidence: 99%

“…Clean water is essential for humans, and the accessibility of affordable clean water is a challenge for many countries due to growing population and extreme climate change. Novel water treatment technologies and nanomaterials have gained considerable attention, especially for removal of micropollutants [1], pesticides [2], heavy metals [3,4], antibiotics [5], and drugs [6]. Water treatment technologies for obtaining clean water from seawater and brackish water or reused water have been developed to solve the water shortage problems.…”

Section: Introductionmentioning

confidence: 99%

Salt Removal by Chemically Modified Graphene in Capacitive Deionization (CDI)

Peng

Chen

Wang

2022

Water

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Obtaining clean water from salt water by capacitive deionization (CDI) with chemically modified graphene (rGO) was explored in this study. Strong acid (HNO3:H2SO4 = 2:1) was employed to modify rGO to enhance its hydrophilicity and electrochemical properties. Characteristics of rGO with/without acid modification were analyzed by XRD, SEM, FTIR, contact angle, BET, and cyclic voltammetry (CV). Contributions of sulfonic acid groups, hydroxyl groups, and NO2 stretching after acid modification resulted in better wettability and higher specific capacitance of rGO. The contact angle for rGO dropped from 84.9° to 35.1° (am-rGO), indicating improved hydrophilicity of rGO with acid modification. The specific capacitance of am-rGO can reach 150.2 F/g at the scan rate of 1 mV/s. The average NaCl electrosorption capacity of the CDI process with am-rGO was 0.63 mg NaCl/g electrode (10.86 μmol NaCl/g electrode), which indicated rGO with acid modification can enhance the electrosorption capacity by 3.9 times. This study demonstrated that chemical modification can significantly improve the hydrophilicity, electrochemical properties, and electrosorption performance of rGO, which has potential for applications to other carbon-based materials for CDI systems to improve salt removal efficiency.

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Biosynthesis of SiO2 nanoparticles using extract of Nerium oleander leaves for the removal of tetracycline antibiotic

Cited by 71 publications

References 71 publications

Porous Mn₂O₃/pSiO₂ Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Porous Mn₂O₃/pSiO₂ Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Hydrothermally engineered Eriobotrya japonica leaves/MgO nanocomposites with potential applications in wastewater treatment

Salt Removal by Chemically Modified Graphene in Capacitive Deionization (CDI)

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Biosynthesis of SiO2 nanoparticles using extract of Nerium oleander leaves for the removal of tetracycline antibiotic

Cited by 71 publications

References 71 publications

Porous Mn2O3/pSiO2 Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Porous Mn2O3/pSiO2 Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Hydrothermally engineered Eriobotrya japonica leaves/MgO nanocomposites with potential applications in wastewater treatment

Salt Removal by Chemically Modified Graphene in Capacitive Deionization (CDI)

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Product

Resources

About

Porous Mn₂O₃/pSiO₂ Nanocomposites on Bio-scaffolds for Tetracycline Degradation

Porous Mn₂O₃/pSiO₂ Nanocomposites on Bio-scaffolds for Tetracycline Degradation