Removal of boron from aqueous solution by modified cellulose

Yetgin, Ayşe Gül; Dündar, Ozan Ali; Çakmakçı, Emrah; Arar, Özgür

doi:10.1007/s13399-021-02133-1

Cited by 12 publications

(8 citation statements)

References 42 publications

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“…As seen in Figure b, c, the R 2 value for the pseudo-second-order model was greater than that for the pseudo-first-order model, thus suggesting the adsorption kinetic mechanism followed the pseudo-second-order model. Several other boron selective adsorbents in the literature containing the NMDG functional group also followed pseudo-second-order model kinetics. ,,, …”

Section: Resultsmentioning

confidence: 99%

“…Cellulose-based adsorbent showed high stability for boron removal in a wide pH range and similar results are reported for NMDG-functionalized adsorbents in the literature. 28 − 30 Consequently, to also support boron removal in the electrodialysis system by generating borate ions, the optimum pH was selected as 10 in this study. The effect of pH on the hybrid system is discussed in detail in Section 2.3.1 .…”

Section: Resultsmentioning

confidence: 99%

“…Several other boron selective adsorbents in the literature containing the NMDG functional group also followed pseudo-second-order model kinetics. 22 , 28 , 30 , 32 …”

Section: Resultsmentioning

confidence: 99%

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Novel Hybrid Adsorption-Electrodialysis (AdED) System for Removal of Boron from Geothermal Brine

et al. 2022

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A novel hybrid adsorption-electrodialysis (AdED) system to remove environmentally harmful boron from geothermal brine was designed and effective operating parameters such as pH, voltage, and flow rate were studied. A cellulose-based adsorbent was synthesized from glycidyl methacrylate (GMA) grafted cellulose and modified with a boron selective n-methyl-d-glucamine (NMDG) group and characterized with SEM-EDX, FT-IR, and TGA analyses. Batch adsorption studies revealed that cellulose-based adsorbent showed a remarkable boron removal capacity (19.29 mg/g), a wide stable operating pH range (2–10), and an adsorption process that followed the Freundlich isotherm (R 2 = 0.95) and pseudo-second-order kinetics (R 2 = 0.99). In the hybrid AdED system, the optimum operating parameters for boron removal were found to be a pH of 10, a voltage of 10 V, a flow rate of 100 mL/min, and an adsorbent dosage of 4 g/L. The presence of the adsorbent in the hybrid system increased boron removal from real geothermal brine (containing 199 ppm boron) from 7.2% to 73.3%. The results indicate that the designed AdED system performs better than bare electrodialysis for boron removal from ion-rich real geothermal brine while utilizing environmentally friendly cellulose-based adsorbent.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Novel Hybrid Adsorption-Electrodialysis (AdED) System for Removal of Boron from Geothermal Brine

et al. 2022

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“…Intermolecular and intramolecular interactions such as hydrogen bonding and degradation processes mainly include bridging and ring oxygen atoms . The presence of hydroxyl groups on cellulose enables several modification processes to create new sorbents with varied functional groups . Phosphorylation is one approach to modifying cellulose.…”

Section: Introductionmentioning

confidence: 99%

“… 45 The presence of hydroxyl groups on cellulose enables several modification processes to create new sorbents with varied functional groups. 46 Phosphorylation is one approach to modifying cellulose. The chelating properties of phosphate groups are well recognized.…”

Section: Introductionmentioning

confidence: 99%

Cross-Linked Phosphorylated Cellulose as a Potential Sorbent for Lithium Extraction from Water: Dynamic Column Studies and Modeling

Recepoğlu

Yuksel

2022

ACS Omega

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Phosphorylated functional cellulose was cross-linked with epichlorohydrin at different ratios because it is a very hydrophilic substance that instantly swells to form a hydrogel when it comes into contact with water. It was aimed to utilize a continuously packed bed column to recover lithium from water under varying operating conditions such as flow rate and bed height. The characterization results confirmed cross-linking based on morphology, structure, surface area, and thermal stability differences. Lithium recovery was more efficient with a low flow rate, but the dynamic sorption process was independent of bed height. The total capacities at the three flow rates with 1.5 cm bed height were 33.56, 30.15, and 25.54 mg g −1 , and the total saturation times at the three different bed heights with 0.5 mL min −1 flow rate were 659, 1001, and 1007 min, respectively. Only 15.75 mL of 5% H 2 SO 4 solution was required to desorb approximately 100% of Li from the saturated sorbent.

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Recent advances in boron removal in aqueous media. An approach to the adsorption process and process optimization

de Azevedo,

de Urzedo,

da Luz Mesquita

et al. 2024

Environ Sci Pollut Res

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Removal of boron from aqueous solution by modified cellulose

Cited by 12 publications

References 42 publications

Novel Hybrid Adsorption-Electrodialysis (AdED) System for Removal of Boron from Geothermal Brine

Novel Hybrid Adsorption-Electrodialysis (AdED) System for Removal of Boron from Geothermal Brine

Cross-Linked Phosphorylated Cellulose as a Potential Sorbent for Lithium Extraction from Water: Dynamic Column Studies and Modeling

Recent advances in boron removal in aqueous media. An approach to the adsorption process and process optimization

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