Adsorptive removal of cefixime using a novel adsorbent based on synthesized polycation coated nanosilica rice husk

Truong, Thi Thuy Trang; Vu, Thi Ngan; Dinh, Thi Diu; Pham, Thu Thao; Nguyen, Thi Anh Huong; Nguyen, Manh Ha; Nguyen, Truong X.; Yusa, Shin‐ichi; Pham, Tien Duc

doi:10.1016/j.porgcoat.2021.106361

Cited by 36 publications

(12 citation statements)

References 40 publications

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“…The charging behavior of various adsorbents during antibiotic adsorption has been evaluated by ζ-potential measurements, − , but the change in the surface charge of ZnO@SiO 2 before and after AMX adsorption has not previously been evaluated. Figure shows that the ζ-potential of ZnO@SiO 2 using 1 mM KCl at pH 7 was positive at 8.32 mV.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and Characterization of Novel Core–Shell ZnO@SiO₂ Nanoparticles and Application in Antibiotic and Bacteria Removal

et al. 2022

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A novel core–shell nanomaterial, ZnO@SiO2, based on rice husk for antibiotic and bacteria removal, was successfully fabricated. The ZnO@SiO2 nanoparticles were characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), photoluminescence spectroscopy (PL), Brunauer–Emmett–Teller (BET) method, diffuse reflectance ultraviolet–vis (DR-UV–vis) spectroscopy, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and ζ-potential measurements. β-Lactam antibiotic amoxicillin (AMX) was removed using ZnO@SiO2 nanoparticles with an efficiency greater than 90%, while Escherichia coli removal was higher than 91%. The optimum effective conditions for AMX removal using ZnO@SiO2, including solution pH, adsorption time, and ZnO@SiO2 dosage, were 8, 90 min, and 25 mg/mL, respectively. The maximum adsorption capacity reached 52.1 mg/g, much higher than those for other adsorbents. Adsorption isotherms of AMX on ZnO@SiO2 were more in accordance with the Freundlich model than the Langmuir model. The electrostatic attraction between negative species of AMX and the positively charged ZnO@SiO2 surface induced adsorption, while the removal of E. coli was governed by both electrostatic and hydrophobic interactions. Our study demonstrates that ZnO@SiO2 based on rice husk is a useful core–shell nanomaterial for antibiotic and bacteria removal from water.

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Section: Resultsmentioning

confidence: 99%

“…Among them, sol–gel is the simplest method to synthesize ZnO@SiO 2 without using surfactants or organic solvents. Since nanosilica is easily fabricated from rice husk, a common agricultural byproduct, − ZnO@SiO 2 based on rice husk is evidently a low-cost adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Novel Core–Shell ZnO@SiO₂ Nanoparticles and Application in Antibiotic and Bacteria Removal

et al. 2022

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“…Figure 3 shows that AMX removal grew up dramatically with increasing adsorbent dosage from 1 to 10 mg/mL due to an increase in total site and charge of CMNS [3]. However, AMX removal decreased with a higher adsorbent dosage than 10 mg/mL because of the fast aggregation of high concentration of nanosilica in the presence of organic molecules [15].…”

Section: Influence Of Adsorbent Dosagementioning

confidence: 99%

“…Therefore, removal of antibiotics has attracted numerous studies [2]. Among many techniques are used for the removal of antibiotics, adsorption is one of the most effective method and suitable for developing countries when using cheap adsorbents [3].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, to enhance removal efficiency of antibiotic, surface modification of structural denaturation is necessary. In our previously published papers, we successfully modified nanosilica surface by different polycations [3,4], or protein [5] or coated with CeO2 [6] to increase the removal of some antibiotics from aqueous solutions. Amoxicillin (AMX) is one of the most widely used betalactam antibiotic for treating bacterial infections [7].…”

Section: Introductionmentioning

confidence: 99%

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Adsorptive removal of residual amoxicillin antibiotic using cationic surfactant cetyltrimethylamonium bromide modified nanosilica rice husk

Thi¹,

Minh²,

Ngoc³

et al. 2021

Vietnam j. catal. adsorp.

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Amoxicillin (AMX) is a highly antibiotic resistance so that many studies focus on the removal of AMX in water environment. The present study investigated adsorptive removal of beta-lactam antibiotic AMX using a cationic surfactant, cetyltrimethylamonium bromide (CTAB) modified nanosilica (CMNS). The CTAB adsorption on nanosilica was independent of ionic strength, indicating that both electrostatic and hydrophobic interaction induced adsorption. Effective conditions for AMX removal using CMNS were systematically studied. The AMX removal using 10 mg/ mL CMNS reached 99 % at pH 9. Adsorption isotherms of AMX on CMNS at two salt concentrations were in good agreement with Langmuir model than Freundlich model. Adsorption isotherms at different ionic strengths and the surface modification by Fourier transform infrared (FT-IR) spectroscopy demonstrate that AMX adsorption on CMNS was mainly controlled by electrostatic interaction.

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Adsorption characteristics of Cu2+ on CeO2/SiO2 nanomaterials based on rice husk and its application to pre-concentration and determination in food samples

Dinh

Nguyen

et al. 2023

Colloid Polym Sci

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Adsorptive removal of cefixime using a novel adsorbent based on synthesized polycation coated nanosilica rice husk

Cited by 36 publications

References 40 publications

Synthesis and Characterization of Novel Core–Shell ZnO@SiO₂ Nanoparticles and Application in Antibiotic and Bacteria Removal

Synthesis and Characterization of Novel Core–Shell ZnO@SiO₂ Nanoparticles and Application in Antibiotic and Bacteria Removal

Adsorptive removal of residual amoxicillin antibiotic using cationic surfactant cetyltrimethylamonium bromide modified nanosilica rice husk

Adsorption characteristics of Cu2+ on CeO2/SiO2 nanomaterials based on rice husk and its application to pre-concentration and determination in food samples

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Adsorptive removal of cefixime using a novel adsorbent based on synthesized polycation coated nanosilica rice husk

Cited by 36 publications

References 40 publications

Synthesis and Characterization of Novel Core–Shell ZnO@SiO2 Nanoparticles and Application in Antibiotic and Bacteria Removal

Synthesis and Characterization of Novel Core–Shell ZnO@SiO2 Nanoparticles and Application in Antibiotic and Bacteria Removal

Adsorptive removal of residual amoxicillin antibiotic using cationic surfactant cetyltrimethylamonium bromide modified nanosilica rice husk

Adsorption characteristics of Cu2+ on CeO2/SiO2 nanomaterials based on rice husk and its application to pre-concentration and determination in food samples

Contact Info

Product

Resources

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Synthesis and Characterization of Novel Core–Shell ZnO@SiO₂ Nanoparticles and Application in Antibiotic and Bacteria Removal

Synthesis and Characterization of Novel Core–Shell ZnO@SiO₂ Nanoparticles and Application in Antibiotic and Bacteria Removal