Excellent fluoride decontamination and antibacterial efficacy of Fe–Ca–Zr hybrid metal oxide nanomaterial

Dhillon, Ankita; Nair, M. R. Gopinathan; Bhargava, Suresh K.; Kumar, Dinesh

doi:10.1016/j.jcis.2015.06.045

Cited by 62 publications

(16 citation statements)

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“…[27][28][29][30][31] These enhancements were attributed to the increase in intensity of surface hydroxyl groups (M-OH) of the adsorbent. [32][33][34][35] But till date the study on ternary metal oxide adsorbents for arsenic adsorption remains elusive. NiFe 2 O 4 ) adsorbs more arsenic [As(III) and As(V)] compounds at higher concentration of arsenic loading [1000 ppm].…”

Section: Introductionmentioning

confidence: 99%

Aluminum substituted nickel ferrite (Ni–Al–Fe): a ternary metal oxide adsorbent for arsenic adsorption in aqueous medium

et al. 2016

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The adsorption of arsenic [arsenite (As(III)) and arsenate (As(V))] onto aluminum substituted nickel ferrite (Ni-Al-Fe) which is a ternary metal oxide nano adsorbent is evaluated. Qualitative and quantitative studies were performed to understand the adsorption phenomenon. The qualitative studies for both adsorbent and arsenic adsorbed samples were evaluated using FT-IR, Raman and XPS techniques and the quantitative studies were carried out using ICP-OES technique. The results reveal that the maximum adsorption capacities of Ni-Al-Fe adsorbent are around 114 and 103 mg g À1 for As(III) and As(V) species in 100 ppm arsenic equilibrium concentration (C e ) systems. Also, at low initial concentrations (100 and 500 ppb) a better adsorption phenomenon (i.e. WHO guidelines limit of 10 ppb) for the As(V) species onto the Ni-Al-Fe adsorbent was observed. In addition the kinetics of adsorption, and effect of concentration and pH on the adsorption phenomena have been detailed. † Electronic supplementary information (ESI) available: Information about adsorbent synthesis, Raman spectra (individual peak identication), quantitative study related plots and tables and arsenic stretching vibrations from literature. See

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Section: Introductionmentioning

confidence: 99%

Aluminum substituted nickel ferrite (Ni–Al–Fe): a ternary metal oxide adsorbent for arsenic adsorption in aqueous medium

et al. 2016

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“…The two metal salts like Th(NO3)2.xH2O and MnSO4.H2O were purchased from E. Merck Ltd. India and utilized without further purification. The standard fluoride stock solution (1000 mg/L) was prepared and different concentrations fluoride solutions for experimental studies were obtained by appropriate dilution [24][25][26][27] .…”

Section: Methodsmentioning

confidence: 99%

Elimination of hazardous fluoride from drinking water using Th–Mn nanoadsorbent

Tomar¹

2017

IJNME

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Herein, we have developed Th-Mn nanoadsorbent for the removal of fluoride from aqueous systems. The adsorbent presented high surface area (156.864 m 2 /g) and small pore size (13.3 Å) demonstrating the high porosity of the nanoadsorbent. The adsorbent surface morphology has been characterized by XRD, TEM, BET, and Raman techniques. The fluoride adsorption mechanism was confirmed by FTIR studies. The fluoride uptake conditions were optimized using batch studies. The batch results demonstrated maximum adsorption efficiency (85%) at pH 6 within 85 min. The adsorption isotherms were well fitted by the Freundlich isotherm model (R 2 > 0.870). The nanoadsorbent presented excellent regeneratability (up to 95%) with an alkali solution. The property of regeneration and reusability makes it a smart sustainable material for fluoride removal.

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“…For example, according to Dhillon et al's research, a Fe-Ca-Zr hybrid metal oxide nanomaterial has a large adsorption capacity of 250 mg Fg -1 , but has a high pH requirement. [16]. In Venditti et al's study, industrial wastewater was treated with aluminum chloride containing Actifluo (Brenntag).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Study of an Efficient Metal-Organic Framework Adsorbent (MIL-96(Al)) for Fluoride Removal from Water

Wang

Zhu

Sun

et al. 2019

Journal of Nanomaterials

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Long-term consumption of drinking water that contains excessive amounts of fluoride can endanger human health; therefore, the preparation and application of a high-efficiency defluorination adsorbent for advanced purification of drinking water are of significant interest. This study presents a metal-organic framework adsorbent (MIL-96(Al)) with the granular structure of rice, which was generated by hydrothermal reaction. The specific surface area of MIL-96(Al) was ~220 m2 g-1, and it showed a good thermal stability. Several experiments were conducted wherein conditions, including adsorbent dosage, initial concentration, pH, and coexisting anions, were varied to understand the defluorination performance of the material. Results showed that pH (6–9) and coexisting anions had little effect on the removal efficiency of fluoride. The adsorption isotherm can be described by the Langmuir model, and the theoretical fluoride adsorption capacity of MIL-96(Al) was up to 42.19 mg Fg-1 at 298 K, which is much higher than that of the commonly used activated alumina. The adsorption process of fluoride is endothermic and follows pseudo second-order kinetics. In addition, MIL-96(Al) was shown to still achieve ~61.8% of the adsorption capacity after seven regenerations. This study shows that MIL-96(Al) is a good application prospect and could be widely used to remove fluoride from water.

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Excellent fluoride decontamination and antibacterial efficacy of Fe–Ca–Zr hybrid metal oxide nanomaterial

Cited by 62 publications

References 64 publications

Aluminum substituted nickel ferrite (Ni–Al–Fe): a ternary metal oxide adsorbent for arsenic adsorption in aqueous medium

Aluminum substituted nickel ferrite (Ni–Al–Fe): a ternary metal oxide adsorbent for arsenic adsorption in aqueous medium

Elimination of hazardous fluoride from drinking water using Th–Mn nanoadsorbent

Synthesis and Study of an Efficient Metal-Organic Framework Adsorbent (MIL-96(Al)) for Fluoride Removal from Water

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