Recent advances in adsorption of environmental pollutants using metal–organic frameworks-based hydrogels

Ahmadian, Moslem; Derakhshankhah, Hossein; Jaymand, Mehdi

doi:10.1016/j.ijbiomac.2023.123333

Cited by 33 publications

(8 citation statements)

References 156 publications

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“…After 24 h, the metals' concentrations were measured by ion chromatography, IC (940 Professional IC Vario, Metrohm, Switzerland). Removal rates (%) were calculated by Equation (2).…”

Section: Metal Sorptionmentioning

confidence: 99%

“…Water-containing PTEs cause health problems such as brain damage, cancerous diseases, and gastrointestinal diseases. [2][3][4] Thus, it is essential to develop methods to efficiently remove metal ions from water.…”

Section: Introductionmentioning

confidence: 99%

“…12 Among the mentioned methods, adsorption is a simple process for removing pollutants due to its economic viability, high performance, simplicity, and reuse of the adsorbent, and it is the most effective for low concentrations of contaminants. 2,13,14 The most common compounds are activated charcoal (AC), 15 carbon nanotubes, 16 clay minerals, 17 biomass, 18 algae, 19 microplastics, 20 nanocellulose, 21 and magnetic materials. 22 Some of these compounds are costly and present disadvantages, such as slow adsorption kinetics, low selectivity, and low adsorption efficiency.…”

Section: Introductionmentioning

confidence: 99%

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A novel starch‐based composite hydrogel enhanced by activated charcoal from the banana peel for water decontamination

Maia,

Pereira,

da Silva

et al. 2024

J of Applied Polymer Sci

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The efficient removal of potential toxic elements (PTEs) from aqueous systems is an important challenge in water purification and industrial effluent treatment. Starch‐based hydrogels have shown promise in this context due to their unique properties, such as high absorption capacity and water retention. This work synthesized a novel hydrogel with and without activated charcoal (AC) from banana peel (5 wt.%) and trisodium citrate as a crosslinking agent and starch to remove PTEs. These hydrogels were characterized by Fourier‐transformed infrared (FTIR), scanning electron microscopy, TGA, XRD, water absorption, and zero‐charge point techniques. Subsequently, the affinity of AC, neat hydrogel, and the composite hydrogel for removing Cr6+, Cd2+, Ni2+, Mn2+, Zn2+, and Cu2+ in aqueous solution was evaluated. FTIR confirmed a crosslinking reaction between the starch molecules and the crosslinking agent (trisodium citrate). Besides, the addition of hydrogel+5%AC altered the crosslinking process. Adding AC to the hydrogel composite increased crystallinity, thermal stability, and porous size. The highest removal efficiency of neat hydrogel and hydrogel+5%AC was for Cr6+, obtaining 83.2% and 98.5%, respectively. As for the AC, the removal of Cu2+ was satisfactory, with 80.4%. Thus, hydrogel+5%AC proves to be a highly viable adsorbent for posttreatment of wastewater due to its ability to efficiently remove PTEs.

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“…After 24 h, the metals' concentrations were measured by ion chromatography, IC (940 Professional IC Vario, Metrohm, Switzerland). Removal rates (%) were calculated by Equation (2).…”

Section: Metal Sorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A novel starch‐based composite hydrogel enhanced by activated charcoal from the banana peel for water decontamination

Maia,

Pereira,

da Silva

et al. 2024

J of Applied Polymer Sci

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“…On the other hand, nanomaterials are a promising alternative due to the improvement of properties through surface and structural modifications [ 9 , 10 , 11 , 12 ]. Therefore, many researchers have studied alternative adsorbents that can efficiently substitute for activated carbon, including agricultural residues (sugar cane bagasse, coconut husk, corn cob) [ 13 ], zeolites [ 14 , 15 ], and silica [ 16 , 17 , 18 ], among others [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal

et al. 2023

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Industrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO2) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge is facilitating the adsorbate separation and reuse cycle from aqueous medium. Thus, the present work employs SiO2 supported on polylactic acid (PLA) nanofibers obtained by the electrospinning method for Rhodamine B (RhB) dye adsorption. The silica surface was modified with trimethylsilyl chloride (TMCS) to increase affinity towards organic compounds. As a result, the silanized surface of the silica from rice husk (RHSil) promoted an increase in dye adsorption attributed to the hydrophobic properties. The PLA fibers containing 40% SiO2 (w w−1) showed about 85–95% capacity adsorption. The pseudo-first-order kinetic model was demonstrated to be the best model for PLA:SiO2 RHSil nanocomposites, exhibiting a 1.2956 mg g−1 adsorption capacity and 0.01404 min−1 kinetic constant (k1) value. In the reuse assay, PLA:SiO2 membranes preserved their adsorption activity after three consecutive adsorption cycles, with a value superior to 60%. Therefore, PLA:SiO2 nanocomposites from agricultural waste are an alternative to “low-cost/low-end” treatments and can be used in traditional treatment systems to improve dye removal from contaminated waters.

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“…1). The wide application of MOGs in non-medical fields (such as adsorption of environmental pollutants, 22 electrochemical application, 23 water treatment, 24 and oxygen electrocatalysis 25 ) has been comprehensively reviewed. In the biomedical field, Lim et al 26 focused on MOF-hydrogel composites (one type contained in MOGs) applied in biomedically relevant areas.…”

Section: Introductionmentioning

confidence: 99%

Metal–organic gels: recent advances in their classification, characterization, and application in the pharmaceutical field

Cao,

Lin,

Zheng

et al. 2023

J. Mater. Chem. B

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Recent advances in adsorption of environmental pollutants using metal–organic frameworks-based hydrogels

Cited by 33 publications

References 156 publications

A novel starch‐based composite hydrogel enhanced by activated charcoal from the banana peel for water decontamination

A novel starch‐based composite hydrogel enhanced by activated charcoal from the banana peel for water decontamination

Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal

Metal–organic gels: recent advances in their classification, characterization, and application in the pharmaceutical field

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