Removal of fluoride from aqueous media by magnesium oxide-coated nanoparticles

Minju, N.; Swaroop, Kumarswamy; Haribabu, K.; Sivasubramanian, V.; Kumar, P. Senthil

doi:10.1080/19443994.2013.868837

Cited by 40 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the removal of various contaminants from drinking water were performed by using nanomaterial adsorbents due to their unique properties such as large surface area, high reactivity, high specificity, and self-assembly (Qu et al, 2013). Various metal oxides and hydroxides of aluminium, iron, zirconium, magnesium, chromium and manganese ions based nanoparticles (NPs) had been reported (Kumar et al, 2011;Lee et al, 2010;Minju et al, 2013;Sivasankar et al, 2011) for fluoride removal from water (Meenakshi and Maheshwari, 2006). Although bimetallic or mixed oxides such as Mn-Ce, Al-Ce, Zr-Mn and ceramic adsorbents were also studied for fluoride removal, some of these materials present disadvantages in terms of pH range, high cost and low adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Adsorption process of fluoride from drinking water with magnetic core-shell Ce-Ti@Fe 3 O 4 and Ce-Ti oxide nanoparticles

Markeb

Alonso

Sánchez

et al. 2017

Science of The Total Environment

View full text Add to dashboard Cite

Synthesized magnetic core-shell Ce-Ti@FeO nanoparticles were tested, as an adsorbent, for fluoride removal and the adsorption studies were optimized. Adsorption capacity was compared with the synthesized Ce-Ti oxide nanoparticles. The adsorption equilibrium for the Ce-Ti@FeO adsorbent was found to occur in <15min and it was demonstrated to be stable and efficient in a wide pH range of 5-11 with high fluoride removal efficiency over 80% of all cases. Furthermore, isotherm data were fitted using Langmuir and Freundlich models, and the adsorption capacities resulted in 44.37 and 91.04mg/g, at pH7, for Ce-Ti oxides and Ce-Ti@FeO nanoparticles, respectively. The physical sorption mechanism was estimated using the Dubinin-Radushkevich model. An anionic exchange process between the OH group on the surface of the Ce-Ti@FeO nanomaterial and the F was involved in the adsorption. Moreover, thermodynamic parameters proved the spontaneous process for the adsorption of fluoride on Ce-Ti@FeO nanoparticles. The reusability of the material through magnetic recovery was demonstrated for five cycles of adsorption-desorption. Although the nanoparticles suffer slight structure modifications after their reusability, they keep their adsorption capacity. Likewise, the efficiency of the Ce-Ti@FeO was demonstrated when applied to real water to obtain a residual concentration of F below the maximum contaminated level, 1.5mg/L (WHO, 2006).

show abstract

Section: Introductionmentioning

confidence: 99%

Adsorption process of fluoride from drinking water with magnetic core-shell Ce-Ti@Fe 3 O 4 and Ce-Ti oxide nanoparticles

Markeb

Alonso

Sánchez

et al. 2017

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…Mg-Fe-La 112.17 [44] Polygonum orientale Linn. (Al 2 (SO 4 ) 3 modification) 0.77 [45] Fe-Al-La 8.17 [46] CeO 2 /Al 2 O 3 50 [47] Fe 3 O 4 /CS/Al(OH) 3 76.63 [48] MIL-24(Al)-NH 2 1070.6 [49] Al-Cu oxide nanoparticles supported on steel slag 89.5 [50] LaP-POT(lanthanum phosphate and poly-otoluidine) 10.94 [51] Iron ore 1.45 [52] Dolomite 0.011 [53] Acid-modified pyrolusite (PA-2) 0.58 [54] Li/Al-LDH 35.4 [55] Fe-La-Ce 303.03 [56]…”

Section: Adsorbent Fluoride Removal Capacity (Mg/g) Referencementioning

confidence: 99%

Approaches for the Efficient Removal of Fluoride from Groundwater: A Comprehensive Review

Arab,

Derakhshani,

Sayadi

2024

Toxics

View full text Add to dashboard Cite

Contamination of groundwater with fluoride represents a significant global issue, with high concentrations posing serious public health threats. While fluoride is a critical element in water, excessive levels can be detrimental to human health and potentially life-threatening. Addressing the challenge of removing fluoride from underground water sources via nanotechnological approaches is a pressing concern in environmental science. To collate relevant information, extensive literature searches were conducted across multiple databases, including Google Scholar, PubMed, Scopus, Web of Science, the American Chemical Society, Elsevier, Springer, and the Royal Society of Chemistry. VOS Viewer software version 1.6.20 was employed for a systematic review. This article delivers an exhaustive evaluation of various groundwater fluoride removal techniques, such as adsorption, membrane filtration, electrocoagulation, photocatalysis, and ion exchange. Among these, the application of nanoparticles emerges as a notable method. The article delves into nano-compounds, optimizing conditions for the fluoride removal process and benchmarking their efficacy against other techniques. Studies demonstrate that advanced nanotechnologies—owing to their rapid reaction times and potent oxidation capabilities—can remove fluoride effectively. The implementation of nanotechnologies in fluoride removal not only enhances water quality but also contributes to the safeguarding of human health.

show abstract

“…Experiments showed that the functionalization of zirconium(IV)-metalloporphyrin showed good efficiency for uoride adsorption with high specicity and selectivity. Similarly magnesium oxide (MgO)-coated magnetite (Fe 3 O 4 ) nanoparticles with magnetic properties were synthesized by Minju et al 60 using a modied sol-gel method for analyzing the uoride scavenging potential. The adsorption capacity was found to be 10.96 mg g À1 .…”

Section: Magnetic Nanomaterialsmentioning

confidence: 99%

Advances in nanomaterial based approaches for enhanced fluoride and nitrate removal from contaminated water

Suriyaraj

Selvakumar

2016

RSC Adv.

View full text Add to dashboard Cite

show abstract

Removal of fluoride from aqueous media by magnesium oxide-coated nanoparticles

Cited by 40 publications

References 28 publications

Adsorption process of fluoride from drinking water with magnetic core-shell Ce-Ti@Fe 3 O 4 and Ce-Ti oxide nanoparticles

Adsorption process of fluoride from drinking water with magnetic core-shell Ce-Ti@Fe 3 O 4 and Ce-Ti oxide nanoparticles

Approaches for the Efficient Removal of Fluoride from Groundwater: A Comprehensive Review

Advances in nanomaterial based approaches for enhanced fluoride and nitrate removal from contaminated water

Contact Info

Product

Resources

About