Adsorbent Material Used In Water Treatment-A Review

Yu, C H; Han, Xiao

doi:10.2991/iwmecs-15.2015.55

Cited by 21 publications

(19 citation statements)

References 18 publications

(11 reference statements)

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“…The adsorption method relies on various inorganic and organic adsorbent materials, obtained synthetically or by chemical modification of matrices and wastes of natural origin such as activated carbon, zeolite, chitosan, clay minerals, plant wastes, etc. [ 9 ]. The adsorption capacity and the adsorption mechanism (Van der Waals forces, electrostatic interaction, coordination interaction, and hydrogen bonding) are regulated both by the surface area and by the chemical properties of the surface, although these materials can be structured in very diverse ways as nanoparticles, microspheres, nanofibers, and sponges [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Easy Preparation of Liposome@PDA Microspheres for Fast and Highly Efficient Removal of Methylene Blue from Water

Leo

Maurelli

Ingrosso

et al. 2021

IJMS

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Mussel-inspired chemistry was usefully exploited here with the aim of developing a high-efficiency, environmentally friendly material for water remediation. A micro-structured material based on polydopamine (PDA) was obtained by using liposomes as templating agents and was used for the first time as an adsorbent material for the removal of methylene blue (MB) dye from aqueous solutions. Phospholipid liposomes were made by extrusion and coated with PDA by self-polymerization of dopamine under simple and mild conditions. The obtained Liposome@PDA microspheres were characterized by DLS and Zeta potential analysis, TEM microscopy, and FTIR spectroscopy. The effects of pH, temperature, MB concentration, amount of Liposome@PDA, and contact time on the adsorption process were investigated. Results showed that the highest adsorption capacity was obtained in weakly alkaline conditions (pH = 8.0) and that it could reach up to 395.4 mg g−1 at 298 K. In addition, adsorption kinetics showed that the adsorption behavior fits a pseudo-second-order kinetic model well. The equilibrium adsorption data, instead, were well described by Langmuir isotherm. Thermodynamic analysis demonstrated that the adsorption process was endothermic and spontaneous (ΔG0 = −12.55 kJ mol−1, ΔH0 = 13.37 kJ mol−1) in the investigated experimental conditions. Finally, the applicability of Liposome@PDA microspheres to model wastewater and the excellent reusability after regeneration by removing MB were demonstrated.

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Section: Introductionmentioning

confidence: 99%

Easy Preparation of Liposome@PDA Microspheres for Fast and Highly Efficient Removal of Methylene Blue from Water

Leo

Maurelli

Ingrosso

et al. 2021

IJMS

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“…The main thermodynamic functions were obtained by analyzing the experimental data between (20-40 °C) using equations (7)(8)(9). ΔG° was obtained using Eq.…”

Section: Effect Of Temperature and The Thermodynamic Studiesmentioning

confidence: 99%

“…Several treatment techniques such as adsorption, photocatalysis, biological treatment, ion exchange, coagulation, flocculation, Fenton, and membrane filtration, were employed to decrease the hazardous influences of these effluents from contaminated water [6][7][8]. Among all these techniques, adsorption is considered the most effective and preferred economical technique that has widely been used for wastewater treatment [9]. Numerous kinds of adsorbent materials have been commonly utilized for the removal of dyes effluents from wastewater, for example, activated carbon [10][11][12][13], metal oxides [14][15][16], clays [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Kinetic, Isothermal and Thermodynamic Investigations for the Use of Pumpkin Seed Husks as low-Cost Biosorbent of Solochrome Cyanine R from Aqueous Solutions

Al-Mahmoud

2020

Egypt. J. Chem.

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P UMPKIN seed husks were used in this research as effective-cost material for the adsorption of Solochrome cyanine R from aqueous solutions. A good removal ability of Pumpkin seed husks was noticed during this study, and the optimal adsorption conditions were found to be 120 min. equilibrium contact time, 0.2 g biosorbent dosage, and 100 mg/L initial dye concentration. The kinetic investigation shows that applying the pseudo-second order model gives a better fit for the adsorption with the higher correlation coefficient. The isothermal investigation shows an excellent fit of data using the Langmuir model, and also predict that the removal process is favorable. The adsorption data at different temperatures were evaluated in order to obtain the thermodynamic parameters. The positive values of ΔH° and ΔS° indicate the endothermic and randomness of the adsorption process. Moreover, the negative values of ΔG° clarify that the adsorption process is spontaneous and more preferable at higher temperatures. Pumpkin seed husks as a low-cost biosorbent exhibit a great potential for the adsorption of Solochrome cyanine R from aqueous solutions.

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“…The Mg molecules are present between the water sheets and bonded octahedrally with water molecules. (Yua and Han 2015). These two clays are stable at high temperature, and are not effected by electrolytes and are applicable for many uses (Murray 2002).…”

Section: Structure Of Vermiculite Claymentioning

confidence: 99%

A review on adsorption of organic pollutants on clay surface

2019

Int. J. Biosci.

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Adsorption method is commonly used to eliminate different pollutants, especially organic pollutants from water on adsorbents.Different types of adsorbents are used to adsorbed organic pollutants like zeolite, siliceous materials, chitosan, and activated carbon, but to limit the scope, our review focuses only on different types of clay adsorbents for the removal of organic pollutants. The clay is an efficient and low cost adsorbent that attracted the attentions of the researchers. On the other hand, organic pollutants are often detected in industrial wastewaters and mostly these are known to be highly toxic and carcinogenic in nature. This review, compiled different types of clay adsorbents and organic pollutants (dyes, pharmaceutical products, herbicides, fungicides, pesticides, oil spills, and other phenolic organic compounds). The review describes different clay adsorbents, their molecular structure and their characteristics as well as discusses the mechanisms that how organic pollutants adsorbed on the clay surface.

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Adsorbent Material Used In Water Treatment-A Review

Cited by 21 publications

References 18 publications

Easy Preparation of Liposome@PDA Microspheres for Fast and Highly Efficient Removal of Methylene Blue from Water

Easy Preparation of Liposome@PDA Microspheres for Fast and Highly Efficient Removal of Methylene Blue from Water

Kinetic, Isothermal and Thermodynamic Investigations for the Use of Pumpkin Seed Husks as low-Cost Biosorbent of Solochrome Cyanine R from Aqueous Solutions

A review on adsorption of organic pollutants on clay surface

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