Carbonaceous materials as effective adsorbents and catalysts for the removal of emerging contaminants from water

Scaria, Jaimy; Gopinath, Ashitha; Ranjith, N.; Ravindran, Vyshakh; Ummar, Safar; Nidheesh, P.V.; Kumar, M Suresh

doi:10.1016/j.jclepro.2022.131319

Cited by 62 publications

(11 citation statements)

References 349 publications

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“…The fairly uniform particle distribution observed at 1500x magnification indicates the retention of the composite's original structure to some degree. Additionally, the heightened surface roughness and variations in grain size observed at 3000x magnification provide additional evidence that the 1-hour calcination process has triggered subtle alterations that could potentially impact the composite's ability to adsorb contaminants [6]. These initial microstructural changes highlight the importance of considering longer calcination durations, as they may lead to more substantial alterations.…”

Section: Morphological Characteristicsmentioning

confidence: 91%

“…It has led to the demand for innovative and effective methods of remediation due to the presence of various contaminants like heavy metals and organic pollutants in water sources [4]. Among these methods, the use of composite materials for adsorption has shown promise in terms of efficiency and versatility [5,6]. This study investigates the crucial role of calcination duration in influencing the surface characteristics and specific surface area of a composite material comprising Zeolite, Chitosan, and oil palm ash [7].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Calcination Duration on the Surface Morphology and Specific Surface Area of Zeolite-Chitosan Composite with Oil Palm Ash for Potential Water Contaminant Remediation

Suka,

Frida,

Rianna

et al. 2023

J. Phys.: Conf. Ser.

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This research investigates how varying calcination durations affect the surface characteristics of a Zeolite-Chitosan composite with oil palm ash, aiming to determine its water contaminant removal potential. Three different calcination durations (1, 2, and 3 hours) are studied. The synthesis involves mixing oil palm ash with Zeolite-Chitosan, followed by varying-duration calcination. Scanning electron microscopy (SEM) and surface area analysis (SAA) are used to assess surface characteristics. Initial findings indicate that changing calcination duration significantly impacts the composite’s surface features and specific surface area. Longer calcination leads to increased surface roughness and higher specific surface area. The 3-hour calcination results in the highest surface roughness and specific surface area among the durations tested. These findings suggest that calcination duration is crucial in altering the composite’s structural properties, which could affect its efficacy in adsorbing water contaminants. Ongoing research aims to better understand the relationship between calcination duration and the composite’s adsorption performance, ultimately optimizing the synthesis of the Zeolite-Chitosan composite with oil palm ash for efficient water contaminant remediation.

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Section: Morphological Characteristicsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Investigation of Calcination Duration on the Surface Morphology and Specific Surface Area of Zeolite-Chitosan Composite with Oil Palm Ash for Potential Water Contaminant Remediation

Suka,

Frida,

Rianna

et al. 2023

J. Phys.: Conf. Ser.

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“…From both the isotherms and the textural data, it is evident that the hydrothermal processes to which CA was subjected (with or without sucrose) did not reduce the porous development of the activated carbon. ---0.027 1 The fit of the experimental data to the BET model does not meet the parameters recommended by IUPAC; thus, the estimated value for CHT cannot be considered accurate.…”

Section: Structural Characterisation 221 N 2 Adsorptionmentioning

confidence: 99%

Hydrothermal Carbon Coating of an Activated Carbon—A New Adsorbent

2023

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A new adsorbent material was prepared by coating an activated carbon with hydrothermal carbon obtained from sucrose. The material obtained has different properties from the sum of the properties of the activated carbon and the hydrothermal carbon, which shows that a new material was obtained. It has a high specific surface area (1051.9 m2 g−1) and is slightly more acidic than the starting activated carbon (p.z.c.-point of zero charge 8.71 vs. 9.09). The adsorptive properties of a commercial carbon (Norit RX-3 Extra) were improved over a wide pH and temperature range. The capacity values of the monolayer according to Langmuir’s model reached 588 mg g−1 for the commercial product and 769 mg g−1 for the new adsorbent.

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“…It is widely used in basic laboratory experiments and industrial production because it removes antibiotics from wastewater simply and economically. Commonly used adsorbents are activated carbon, diatomaceous earth, zeolite, carbon nanotubes, and biochar (Scaria et al, 2022). Most sorbents are suitable for wastewater and not for soil remediation due to material stability and economic limitations, but biochar can be used for both.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of removing terdizolamide phosphate from water by the activation of potassium peroxymonosulfate salt with CeFe2O4 biochar

Zhang,

Ai,

Dai

et al. 2024

Preprint

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Terdizolamide phosphate (TZD), a second-generation oxazolidinone antibiotic with a long half-cycle, poses a potential threat to ecosystems and humans if present in water over an extended duration. Magnetic biochar (CF-biochar) loaded with CeFe2O4, was firstly synthesized by microwave ablation-anaerobic carbonisation using corn straw as raw material and Ce(NO3)3 and Fe(NO3)3 as modifiers. These modifiers were used as activators for peroxymonosulfate (PMS) and adsorbents for removing TZD. The maximum adsorption capacity of CF-biochar was up to 3,322.74 mg g− 1, which was much higher than that of modified biochar. The CF-biochar/PMS system achieved 99.72% removal of TZD and accelerated the removal rate with good results. Results from quenching and electron spin resonance (ESR) tests showed that and played a major role in the oxidative degradation of TZD. Besides, they had a good removal effect on TZD among other co-existing anions. CF-biochar exhibited a smaller particle size, larger specific surface area, more abundant pore size, and high magnetic nature. The removal kinetics and removal isotherms were modeled to show that the adsorption of TZD by CF-biochar was a spontaneous, exothermic, physical multilayer adsorption process. Main driving force corresponded to electrostatic attraction and hydrophobic properties. Therefore, the CF-biochar/PMS system was an efficient, promising, and sustainable technology for removing TZD.

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Carbonaceous materials as effective adsorbents and catalysts for the removal of emerging contaminants from water

Cited by 62 publications

References 349 publications

Investigation of Calcination Duration on the Surface Morphology and Specific Surface Area of Zeolite-Chitosan Composite with Oil Palm Ash for Potential Water Contaminant Remediation

Investigation of Calcination Duration on the Surface Morphology and Specific Surface Area of Zeolite-Chitosan Composite with Oil Palm Ash for Potential Water Contaminant Remediation

Hydrothermal Carbon Coating of an Activated Carbon—A New Adsorbent

Mechanisms of removing terdizolamide phosphate from water by the activation of potassium peroxymonosulfate salt with CeFe2O4 biochar

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