Biomaterial functionalized cerium nanocomposite for removal of fluoride using central composite design optimization study

Nehra, Sapna; Raghav, Sapna; Kumar, Dinesh

doi:10.1016/j.envpol.2019.113773

Cited by 48 publications

(8 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various adsorbents have been investigated and reported for the removal of excess fluoride from water in an effective manner. Some of the widely employed adsorbents are La (III)-Al (III)-activated carbon modified by chemical route [21], biomaterial functionalized cerium nanocomposite [22], Quaternized Palm Kernel Shell (QPKS) [23], bone char and activated alumina [24], bone char [25], renewable biowaste [26], MgFe2O4-chitosan-CaAl nanohybrid [27], carbon nanotube composite [15], Neem Oil-Phenolic Resin Treated Bio-sorbent [17], etc. However, many of these suffer from either time-consuming synthesis procedure, high processing costs, availability of raw materials, or short lifespan, which makes them impractical to be applied in the rift valleys that are essentially impacted by high fluoride concentration in water [1].…”

Section: Introductionmentioning

confidence: 99%

Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems

2021

View full text Add to dashboard Cite

Consumption of drinking water with a high concentration of fluoride (>1.5 mg/L) causes detrimental health problems and is a challenging issue in various regions around the globe. In this study, a continuous fixed-bed column adsorption system was employed for defluoridation of water using volcanic rocks, virgin pumice (VPum) and virgin scoria (VSco), as adsorbents. The XRD, SEM, FTIR, BET, XRF, ICP-OES, and pH Point of Zero Charges (pHPZC) analysis were performed for both adsorbents to elucidate the adsorption mechanisms and the suitability for fluoride removal. The effects of particle size of adsorbents, solution pH, and flow rate on the adsorption performance of the column were assessed at room temperature, constant initial concentration, and bed depth. The maximum removal capacity of 110 mg/kg for VPum and 22 mg/kg for VSco were achieved at particle sizes of 0.075–0.425 mm and <0.075 mm, respectively, at a low solution pH (2.00) and flow rate (1.25 mL/min). The fluoride breakthrough occurred late and the treated water volume was higher at a low pH and flow rate for both adsorbents. The Thomas and Adams–Bohart models were utilized and fitted well with the experimental kinetic data and the entire breakthrough curves for both adsorbents. Overall, the results revealed that the developed column is effective in handling water containing excess fluoride. Additional testing of the adsorbents including regeneration options is, however, required to confirm that the defluoridation of groundwater employing volcanic rocks is a safe and sustainable method.

show abstract

Section: Introductionmentioning

confidence: 99%

Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems

2021

View full text Add to dashboard Cite

show abstract

“…Moreover, the intensities peaks between 350 and 700 cm –1 may be attributed to the Ce–O–Ce- and Ce–O-type lattice vibrations of the BCCM adsorbent . The peaks in Figure b at below 600 cm –1 were due to the presence of Ce–F, confirming that the fluoride ion was successfully adsorbed by the BCCM . Besides, the peak at 3325 cm –1 was attributed to stretching of hydroxyl groups on the BCCM surface, proving that a great number of on the BCCM.…”

Section: Resultsmentioning

confidence: 99%

“…29 The peaks of 1478 and 1180 cm −1 30 The peaks in Figure 4b at below 600 cm −1 were due to the presence of Ce−F, confirming that the fluoride ion was successfully adsorbed by the BCCM. 31 Besides, the peak at 3325 cm −1 was attributed to stretching of hydroxyl groups on the BCCM surface, proving that a great number of on the BCCM. After adsorbing fluoride, the amount of the hydroxyl group band has significantly decreased; this result exhibits that the hydroxyl groups on the BCCM surface play a vital role during the adsorption process.…”

Section: Analysis Of Xrdmentioning

confidence: 99%

Controlled Fabrication of the Biomass Cellulose–CeO₂ Nanocomposite Membrane as Efficient and Recyclable Adsorbents for Fluoride Removal

Yao

Zhu

Ming-you

et al. 2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The biomass cellulose nanocomposite membrane is regarded as one of the most promising adsorbents for resource recovery and pollution control owing to the unique physicochemical properties. Herein, a recyclable biomass cellulose–CeO2 nanocomposite membrane (BCCM) is fabricated by in situ growth of CeO2 on the cellulose membrane (CM) surface and then employed for the elimination of fluoride from industrial wastewater. Structural characteristics of the BCCM were characterized by XRD and SEM. The adsorption experiment indicated that the maximum fluoride adsorption capacity of the BCCM was 48.0 mg/g. Kinetic and isotherm results elucidated that multilayer chemisorption dominated the BCCM adsorption process. Besides, the adsorption mechanism was also investigated by the energy-dispersive X-ray, FT-IR, and XPS analysis. More importantly, the BCCM has strong acid–base adaptability and can be used in extreme environments. This work provides an effective and environmentally friendly strategy to prepare other biomass nanocomposite membranes, which shows great potential for environmental remediation and chemical separation.

show abstract

“…The removal efficiency of 96.67% and 93.04% was attained at 10 mg L −1 while 84 and 99.18% was achieved at 50 mg L −1 in 30 min for ARS and EY, respectively. CAZ a) F − 97 216 15 [21] Zeolite-Zr powder F − 98 32.98 80 [44] Mustard husk ARS 82.03 1.97 90 [45] Co 2 O 3 -NP-AC b) EY 90 555.56 26.24 [46] Ag-NPs-AC c) ARS 91.5 232.6 2.33 [47] AgGO EY -232.55 10 [48] PEI@MCNTs ARS -196.08 40 [49] Chitosan/PVA EY 88.1 52.91 40 [50 ] LC-Ce…”

Section: Dyes Removal Performance In Aqueous Solutionsmentioning

confidence: 99%

Zirconium‐2‐Imidazolidinethione Functionalized Reduced Graphene Oxide Aerogel for Efficient Removal of Fluoride Ions and Anionic Dyes from Aqueous Solutions: Multivariate Process Optimization

Islam

Fatima

2023

CLEAN Soil Air Water

View full text Add to dashboard Cite

A multifunctional aerogel (zirconium‐2‐imidizalodinethione‐reduced graphene oxide aerogel, Zr‐IMDT/rGOA) is synthesized by functionalizing graphene oxide with ZrCl4 and 2‐imidazolidinethione through one‐pot hydrothermal reduction and subsequent freeze drying. The aerogel is employed for the removal of anionic pollutants. Zr‐IMDT/rGOA shows good removal performance for both fluoride ions (F−) and anionic dyes (Alizarin Red S (ARS) and Eosin Y (EY)). The removal efficiency of F− is 97.96% at pH 4.6, time 30 min, an initial concentration of 10 mg L−1, and an adsorbent dosage of 0.01 g as optimized by the Box Behnken Design in response surface methodology. . Brouers‐Sotolongo isotherm model fits well with the equilibrium sorption data and maximum sorption capacity (Qmax) of 328.28, 694.00, and 1449.28 mg g−1 is obtained for F−, ARS, and EY, respectively. Fractal‐like pseudo‐second‐order kinetic model is best suited to the kinetic data and >50% removal is attained for all analytes within 5 min indicating fairly fast kinetics. Zr‐IMDT/rGOA shows good selectivity for F− in the presence of counter ions (Cl−, NO3−, SO42−, HCO3−, and H2PO4−) and could be regenerated up to five cycles with >90% removal. The synthesized aerogel is successfully applied to remove F− from groundwater, river water, and tea infusion.

show abstract

Biomaterial functionalized cerium nanocomposite for removal of fluoride using central composite design optimization study

Cited by 48 publications

References 67 publications

Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems

Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems

Controlled Fabrication of the Biomass Cellulose–CeO₂ Nanocomposite Membrane as Efficient and Recyclable Adsorbents for Fluoride Removal

Zirconium‐2‐Imidazolidinethione Functionalized Reduced Graphene Oxide Aerogel for Efficient Removal of Fluoride Ions and Anionic Dyes from Aqueous Solutions: Multivariate Process Optimization

Contact Info

Product

Resources

About

Biomaterial functionalized cerium nanocomposite for removal of fluoride using central composite design optimization study

Cited by 48 publications

References 67 publications

Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems

Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems

Controlled Fabrication of the Biomass Cellulose–CeO2 Nanocomposite Membrane as Efficient and Recyclable Adsorbents for Fluoride Removal

Zirconium‐2‐Imidazolidinethione Functionalized Reduced Graphene Oxide Aerogel for Efficient Removal of Fluoride Ions and Anionic Dyes from Aqueous Solutions: Multivariate Process Optimization

Contact Info

Product

Resources

About

Controlled Fabrication of the Biomass Cellulose–CeO₂ Nanocomposite Membrane as Efficient and Recyclable Adsorbents for Fluoride Removal