Synthesis and Application of Cobalt-based Metal-organic Framework for Adsorption of Humic Acid from Water

Naseem, Sana; Aslam, Hina; Abbas, Aqeel; Sumbal, Sara; Ali, Rizwan; Usman, Muhammad

doi:10.15255/cabeq.2021.1960

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adsorption capacity of 575 mg/g was obtained at 175 mg/L and pH 3 for the quaternized cellulose beads with 0.380 mmol/g. These values were compared with ones published in other articles [6,14,40,43,44,48,[60][61][62].…”

Section: Comparison With Other Adsorbentsmentioning

confidence: 99%

Kinetic, Isothermal, and Thermodynamic Analyses of Adsorption of Humic Acid on Quaternized Porous Cellulose Beads

Uchiyama,

Asamoto,

Minamisawa

et al. 2024

Macromol

View full text Add to dashboard Cite

Porous cellulose beads were quaternized with glycidyltrimethylammonium chloride (GTMAC), and the potential use of the quaternized cellulose beads as an adsorbent was explored for the removal of humic acid (HA) from aqueous media. The introduction of quaternary ammonium groups was verified by FT-IR and XPS analyses, and their content increased to 0.524 mmol/g-Qcell by increasing the GTMAC concentration. The adsorption capacity of the HA increased with decreasing initial pH value and/or increasing content of quaternary ammonium groups, and a maximum adsorption capacity of 575 mg/g-Qcell was obtained for the quaternized cellulose beads with a content of quaternary ammonium groups of 0.380 mmol/g-Qcell. The removal % value increased with increasing dose of quaternized cellulose beads, and HA was highly removed at higher quaternary ammonium groups. The kinetics of the HA adsorption in this study followed a pseudo-second-order equation, and the process exhibited a better fit to the Langmuir isotherm. In addition, the k2 value increased with increasing temperature. These results emphasize that HA adsorption is limited by chemical sorption or chemisorption. The quaternized cellulose beads were repetitively used for the adsorption of HA without appreciable loss in the adsorption capacity. The empirical, equilibrium, and kinetic aspects obtained in this study support that the quaternized cellulose beads can be applied to the removal of HA.

show abstract

Section: Comparison With Other Adsorbentsmentioning

confidence: 99%

Kinetic, Isothermal, and Thermodynamic Analyses of Adsorption of Humic Acid on Quaternized Porous Cellulose Beads

Uchiyama,

Asamoto,

Minamisawa

et al. 2024

Macromol

View full text Add to dashboard Cite

show abstract

“…HI 8424 pH meters were used to record pH readings. Contact time was changed at 0 min, 3 min, 5 min, 10 min, 20 min, 30 min, 1h, 1.5h, 2h, 4h, and 8h while maintaining the HA content at 50 ppm, temperature at 305 K, and pH at 6 in order to assess the kinetics and equilibrium time for HA adsorption [26].…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Adsorption of Humic Acid from Water Using Metal-Organic Frameworks (MOFs): An Effective Removal Strategy

Mala

2024

J. Eng. Res. Rep.

View full text Add to dashboard Cite

The escalating presence of humic acid (HA) in aquatic systems poses significant ecological and potable water treatment challenges, altering the color, taste, and odor of water and fueling algal blooms that deplete oxygen levels to the detriment of aquatic life. Traditional techniques like coagulation-flocculation, membrane filtration, oxidation fall short in efficiency due to its small fraction of HA, Humic acids (HAs) can interact with various organic and inorganic substances, affecting their characteristics and behavior in water. These interactions can influence the efficiency of water treatment processes like adsorption and coagulation. Specifically, HAs may compete with other contaminants for treatment sites or alter the chemical conditions of the treatment processes, impacting their effectiveness. This thesis confronts the pervasive issue of HA contamination by leveraging the advanced properties of metal-organic frameworks (MOFs). In this work, four representative MOFs are synthesized and well characterized. Then, their capability to enhance coagulation processes in water for HA and HA-kaolin treatment are detailed evaluated. The findings from this research extend beyond academic curiosity, offering actionable insights for water treatment facilities and environmental management agencies. The synthesis of MOFs which are UiO-66(Zr), MIL-100(Fe), ZIF-8, and Al-fum. Each MOFs have been applied to remove HA by adsorption under different condition, effect of contact time, effect of initial pH, effect of adsorbent dosage. After adsorption experiment, MOF samples prepared to dry and went through characterization. Removal of HA by MOF adsorption showed UiO-66(Zr) and MIL-100(Fe) examined shortest reaching equilibrium state with 10-15 min, however, ZIF-8 and Al-fum gradually reached equilibrium state after 60 min. Among various pH conditions, UiO-66(Zr) and MIL-100(Fe) showed the highest adsorption capacity under acidic conditions, while ZIF-8 excelled at neutral pH, and Al-fum exhibited the highest adsorption capacity under both acidic and basic conditions. ZIF-8 has the highest adsorption capacity among the MOFs with capacity of 754 mg/g. MOF after adsorption samples went through characterizations and their remained characteristics indicating the adsorption not affected the structure of the MOFs.

show abstract

“…pH measurements were recorded using an HI 8424 pH meter. To evaluate the kinetics and equilibrium time for HA adsorption, contact time was varied at 0min, 3min, 5min, 10min, 20min, 30min, 1h, 1.5h, 2h, 4h, 8h while keeping the HA concentration at 50 ppm, temperature at 305 K, and pH at 6 (Naseem et al, 2022).…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Removal of Humic Acid by UiO-66(Zr) and MIL-100(Fe) Metal-Organic Frameworks (MOFs) Adsorption

Abdalla

2024

ejtas

View full text Add to dashboard Cite

The escalating presence of humic acid (HA) in aquatic systems poses significant ecological and potable water treatment challenges, altering the color, taste, and odor of water and fueling algal blooms that deplete oxygen levels to the detriment of aquatic life. Traditional techniques like coagulation-flocculation, membrane filtration, oxidation fall short in efficiency due to its small fraction of HA. This study confronts the pervasive issue of HA contamination by leveraging the advanced properties of metal-organic frameworks (MOFs). In this work, two representative MOFs are synthesized and well characterized. Then, their capability for removal HA by adsorption process in water for HA treatment are detailed evaluated. The findings from this research extend beyond academic curiosity, offering actionable insights for water treatment facilities and environmental management agencies. The synthesis of MOFs which are UiO-66(Zr), MIL-100(Fe). Each MOFs have been applied to remove HA by adsorption under different condition. The effect of contacting time, initial pH, adsorbent dosage has been evaluated. After adsorption experiment, MOF samples prepared to dry and went through characterization. Removal of HA by MOF adsorption showed UiO-66(Zr) and MIL-100(Fe) examined rapid reaching equilibrium state with 10-15 min. Among various pH conditions, UiO-66(Zr) and MIL-100(Fe) showed the highest adsorption capacity under acidic conditions. MIL-100(Fe) achieves a higher maximum adsorption capacity than MIL-100(Fe). MOF after adsorption samples went through characterizations and their remained characteristics indicating the adsorption not affected the structure of the MOFs.

show abstract

Synthesis and Application of Cobalt-based Metal-organic Framework for Adsorption of Humic Acid from Water

Cited by 4 publications

References 0 publications

Kinetic, Isothermal, and Thermodynamic Analyses of Adsorption of Humic Acid on Quaternized Porous Cellulose Beads

Kinetic, Isothermal, and Thermodynamic Analyses of Adsorption of Humic Acid on Quaternized Porous Cellulose Beads

Adsorption of Humic Acid from Water Using Metal-Organic Frameworks (MOFs): An Effective Removal Strategy

Removal of Humic Acid by UiO-66(Zr) and MIL-100(Fe) Metal-Organic Frameworks (MOFs) Adsorption

Contact Info

Product

Resources

About