Development of parthenium based activated carbon and its utilization for adsorptive removal of p-cresol from aqueous solution

Singh, Ravi Kant; Kumar, Shashi; Kumar, Surendra; Kumar, Arinjay

doi:10.1016/j.jhazmat.2007.11.117

Cited by 109 publications

(50 citation statements)

References 27 publications

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“…The same trend was obtained when the adsorbent dosage was varied (see data corresponding to KC1 in Figure 3 B as an example), while keeping constant the initial concentration (100 ppm) and volume (30 ml) of the solution. These results are in good agreement with data reported in the literature for the adsorption rate of p-cresol on adsorbents of different nature [16][17][18][19]. The fact that equilibrium is attained after 24 hours in all the studied adsorbents points out the high affinity of p-cresol molecules to both the activated carbons and the carbon/diatomite composites (despite their different chemical composition).…”

Section: Characterization Of the Compositessupporting

confidence: 91%

Adsorption of p-cresol on novel diatomite/carbon composites

Hadjar

Hamdi

Ania

2011

Journal of Hazardous Materials

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Hybrid inorganic/organic adsorbents were synthesized using mixtures of diatomite and carbon charcoal as precursors, and explored for the removal of p-cresol from aqueous solution. The carbon/diatomite composites displayed a bimodal and interconnected porous structure which was partially inherited from both precursors. They display moderate surface areas (between 100-400 m 2 g -1 ) due to their large inorganic content (between 70-90 wt.%), since the diatomite is a non porous material. Compared to activated carbons with a more developed porosity, p-cresol adsorption on the prepared carbon/diatomite composites was much faster, showing adsorption capacities similar to those of conventional adsorbents over a wide pH range. These results show a good affinity of p-cresol molecules towards the hybrid inorganic/organic composites, and demonstrate the suitability of these novel materials for the removal of aromatic (polar) molecules, despite their dominant inorganic character.

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Section: Characterization Of the Compositessupporting

confidence: 91%

Adsorption of p-cresol on novel diatomite/carbon composites

Hadjar

Hamdi

Ania

2011

Journal of Hazardous Materials

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“…This invasive weed is widely prevalent in India covering approximately two million hectares of land [1,2].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Zinc Oxide Nanoparticles Using Parthenium hysterophorus Leaf Extract and Evaluation of their Antibacterial Properties

Datta¹,

Patra²,

Bharadwaj³

et al. 2017

J Biotechnol Biomater

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Parthenium hysterophorus an annual herbaceous weed, is known for its vigorous growth and as a causative agent for contact dermatitis, hay fever and diarrhea in humans and systemic toxicity in livestock. However, in spite of all the problems associated with this weed, it has been reported to have pharmacological activities. The objective of this study is to evaluate the potential of Parthenium hysterophorus leaf extracts for the synthesis of zinc oxide nanoparticles and their antimicrobial properties. Nanoparticles were extracted with the help of aqueous, methanolic and ethanolic solutions of P. hysterophorus leaves. Since a higher yield of nanoparticles was observed when synthesised using aqueous extract therefore these were used in further experiments. Synthesised nanoparticles were characterised using UV-Vis spectroscopy with maximum absorbance peak at 400 nm. SEM and TEM analysis revealed that the particles were spherical and cylindrical in shape with average particle size ranging from 16-45 nm. The chemical group association and elemental composition of nanoparticles was analysed using FTIR and SEM-EDX. Green synthesized zinc oxide nanoparticles were evaluated for antimicrobial activities against Gram positive and Gram negative bacteria. Zinc nanoparticles exhibited maximum zone of inhibition against Enterobacter aerogenes (36 mm) while least activity was seen against Staphylococcus aureus and Bacillus subtilis.

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“…The coefficient of determination (R 2 ) for each model was obtained by using experimental and model derived data. The goodness of model fit was also evaluated by calculating two additional parameters, normalized deviation (ND) and normalized standard deviation (NSD) using Equations (1) and (2), respectively [28].…”

Section: Kinetic Modeling Of Leachingmentioning

confidence: 99%

Leaching Kinetics of As, Mo, and Se from Acidic Coal Fly Ash Samples

Neupane¹,

Donahoe²,

Bhattacharyya³

et al. 2017

JWARP

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Annually, coal-fired electric power plants produce large volumes of potentially hazardous coal combustion products (CCPs) including fly ash. Since majority of the coal fly ash and other CCPs deposited in dry land fills or wet lagoons, they pose risk of contamination to local environment. In this study, we present results of leaching kinetics for As, Mo, and Se from three acidic fly ash samples collected from coal-fired power plants in the southeastern United States. This study shows that the leachate concentrations of As, Mo, and Se increase over time. Three kinetics equations, pseudo-second order, Elovich, and power-function, are able to adequately describe the experimental leaching kinetics data. Experimental leaching data and modeling results indicate that the rate limiting leaching of As, Mo, and Se is controlled by the diffusional process responsible for transferring these elements from interior to the surface of the particles as well as the dissolution of the fly ash particles. Therefore, it is important to adopt effective containment/treatment schemes to avoid potential and persistent dispersion of trace elements from ash disposal facilities to surrounding environment for a long time.

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Development of parthenium based activated carbon and its utilization for adsorptive removal of p-cresol from aqueous solution

Cited by 109 publications

References 27 publications

Adsorption of p-cresol on novel diatomite/carbon composites

Adsorption of p-cresol on novel diatomite/carbon composites

Green Synthesis of Zinc Oxide Nanoparticles Using Parthenium hysterophorus Leaf Extract and Evaluation of their Antibacterial Properties

Leaching Kinetics of As, Mo, and Se from Acidic Coal Fly Ash Samples

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