Nitrophenols removal from aqueous solutions by activated carbon – temperature effect of adsorption kinetics and equilibrium

Wasilewska, Małgorzata; Marczewski, Adam W.; Deryło–Marczewska, Anna; Sternik, Dariusz

doi:10.1016/j.jece.2021.105459

Cited by 36 publications

(48 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whereas previous studies reported in the literature [2,25,26] deal exclusively with hydrophobic carbon adsorbents, disregarding the complexity of the adsorption process, our studies reveal the essential importance of the carbon surface chemistry and porous structure.…”

Section: Adsorption From Water Solutionmentioning

confidence: 55%

Investigation of the Possibilities for Removal of Phenolic Toxic Compounds from Water by Nanoporous Carbon from Polymer By-Products

et al. 2022

View full text Add to dashboard Cite

Nanoporous carbon is synthesized on the base of phenol-formaldehyde resin and polyolefin wax, a by-product from industrial production of polyethylene at low pressure. The adsrption of phenol derivates from aqueous solutions on obtained carbon material was studied. The adsorption capacity of the carbon is related to the surface area and composition of the synthesized material, as well as to the nature of the adsorbent. The obtained adsorbent is characterized by high surface area and porosity, and it demonstrates high adsorption capacity towards aromatic compounds. All studied phenolic compounds show high affinity towards carbon, confirming that the retention mechanism occurs via non-specific interactions between the electronic density of the adsorbent and molecules of aromatic pollutants. Electrostatic interactions may also appear depending on pH of the solution pH and charge distribution of the carbons; and these effects has a strong influence on the final performance of the carbon.

show abstract

Section: Adsorption From Water Solutionmentioning

confidence: 55%

Investigation of the Possibilities for Removal of Phenolic Toxic Compounds from Water by Nanoporous Carbon from Polymer By-Products

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The maximum absorption was observed at 222 nm and 276 nm for ibuprofen and diclofenac, respectively. Relative adsorption (converted to adsorbent mass) was calculated based on material balance as:

where a eq —relative adsorption, c 0 —initial concentration, c eq —equilibrium concentration, V—solution volume, and m—mass of adsorbent [ 1 , 42 , 43 ].…”

Section: Methodsmentioning

confidence: 99%

“…This equation can describe adsorption from solutions on energetically heterogeneous solids, and has the following form:

where θ—relative adsorption (surface coverage), θ = a/a m , m, n—heterogeneity parameters (0 < m, n ≤ 1), and K—the adsorption equilibrium constant related to the characteristic energy of the energy distribution function. In special cases, this relationship may take the form of the generalized Freundlich isotherm (GF; n = 1), Langmuir–Freundlich (LF; m = n), Tóth (T; m = 1), and Langmuir (L; m = n = 1) [ 1 , 44 , 45 ].…”

Section: Methodsmentioning

confidence: 99%

“…A large civilization leap and constantly progressing urbanization caused a growing problem related to inorganic and organic pollution of the environment. Dangerous substances undoubtedly include aromatic organic compounds [ 1 ], primarily due to their high mobility in the environment and negative consequences of long-term impact on living organisms The pharmaceutical industry is considered to be one of the most dynamically developing production sectors around the world. Recently, the presence of drugs and pharmaceuticals in natural water in addition to industrial and municipal wastewater has been observed.…”

Section: Introductionmentioning

confidence: 99%

“…Undoubtedly, the disadvantage of pure alginate salts is their poorly developed structure [ 15 ], which translates into a low sorption capacity in relation to organic pollutants. It should be noted that the use of activated carbon in water treatment processes has been widely spread for many years [ 1 , 14 , 16 , 17 , 18 , 19 ]. Concurrently, the use of this material, especially when it is in a dusty form, has some technical drawbacks, for example, difficulty in recovery.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Wasilewska

Deryło–Marczewska

2022

Materials

Self Cite

View full text Add to dashboard Cite

In this work, alginate–carbon composites with different active carbon content were synthesized and studied by various techniques. The obtained materials can be used as adsorbents in the processes of removing organic pollutants from water. In this study, the effect of the immobilization of activated carbon in calcium alginate was investigated. Textural properties were determined by measuring low-temperature nitrogen adsorption/desorption isotherms. The largest specific surface area was recorded for ALG_C8 and amounted to 995 m2/g. The morphology of alginate materials was determined on the basis of scanning electron microscopy. The adsorption properties were estimated based on the measurements of equilibrium and adsorption kinetics. The highest sorption capacities were 0.381 and 0.873 mmol/g for ibuprofen and diclofenac, respectively. The generalized Langmuir isotherm was used to analyze the equilibrium data. A number of equations and kinetic models were used to describe the adsorption rate data, including first (FOE) and second (SOE) order kinetic equations, 1,2-mixed-order kinetic equation (MOE), fractal-like MOE equation (f-MOE), multi-exponential equation (m-exp), in addition to diffusion models: intraparticle diffusion model (IDM) and pore diffusion model (PDM). Thermal stability was determined on the basis of data from thermal analysis in an atmosphere of synthetic air.

show abstract

Studies on the Process of Basic Dyes Adsorption on Uniform Spherical Carbons

Sternik,

Wasilewska,

Derylo‐Marczewska

et al. 2024

ChemPhysChem

Self Cite

View full text Add to dashboard Cite

The influence of carbon pore structure on the sorption process of selected cationic dyes has been investigated. The structure and surface of carbonaceous materials have been characterized basing on various techniques: scanning electron microscopy, low temperature nitrogen adsorption–desorption measurements, X–ray photoelectron spectroscopy and thermal analysis combined with identification of gaseous products. The kinetic and equilibrium adsorption measurements of Basic Violet 3, Basic Red 1 and Basic Blue 9 from aqueous media were performed. The studied carbons seem to be promising adsorbents towards dyes, taking into account the easy–to–use uniform spherical form of the granules and a complex type of porosity with micro–, meso– and macropores appropriate for large molecule adsorption.

show abstract

Nitrophenols removal from aqueous solutions by activated carbon – temperature effect of adsorption kinetics and equilibrium

Cited by 36 publications

References 56 publications

Investigation of the Possibilities for Removal of Phenolic Toxic Compounds from Water by Nanoporous Carbon from Polymer By-Products

Investigation of the Possibilities for Removal of Phenolic Toxic Compounds from Water by Nanoporous Carbon from Polymer By-Products

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Studies on the Process of Basic Dyes Adsorption on Uniform Spherical Carbons

Contact Info

Product

Resources

About