Optimized experimental design for natural clinoptilolite zeolite ball milling to produce nano powders

Charkhi, Amir; Kazemian, Hossein; Kazemeini, Mohammad

doi:10.1016/j.powtec.2010.05.034

Cited by 121 publications

(84 citation statements)

References 12 publications

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“…Clinoptilolite is the most abundant natural zeolite which is found vastly in huge resources worldwide and has a high chemical and mechanical strength which makes it a promising candidate for preparation of natural zeolite nanoparticles by mechanical grinding and milling (Kazemian 2002;Charkhi et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Petroleum Monoaromatics from Aqueous Solutions Using Granulated Surface Modified Natural Nanozeolites: Systematic Study of Equilibrium Isotherms

Seifi

Torabian

Kazemian

et al. 2010

Water Air Soil Pollut

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Petroleum monoaromatics including benzene, toluene, ethylbenzene, and xylenes (BTEX) are among the notorious volatile organic compounds that contaminate water and soil. In this study, a surfactant-modified natural zeolite and its relevant granulated nanozeolites were evaluated as potential adsorbents for removal of petroleum monoaromatics from aqueous solutions. All experiments performed in batch mode at constant temperature of 20°C and pH of 6.8 for 48 h. The results revealed that the amount of BTEX uptake on granulated zeolites nanoparticles were remarkably higher than the parent micron size natural zeolite (in the order of four times). The isotherms data were analyzed using five models namely, Langmuir, Fruendlich, Elovich, Temkin, and Dubinin-Radushkevich models. It was concluded that the Langmuir model fits the experimental data. The measured adsorption capacities were 3.89 and 4.08 mg of monoaromatics per gram of hexadecyltrimethylammonium-chloride and n-cetylpyridinium bromide (CPB)-modified granulated nanozeolite, respectively. Considering the type of surfactant, adsorbents modified with CPB showed greater tendency for the adsorption of the adsorbates.

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Section: Introductionmentioning

confidence: 99%

“…Milling and size reduction of zeolite particles to nanosized range increases the available surface area and decreases diffusion path length and as a result it would increase the adsorption efficiency (Charkhi et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Petroleum Monoaromatics from Aqueous Solutions Using Granulated Surface Modified Natural Nanozeolites: Systematic Study of Equilibrium Isotherms

Seifi

Torabian

Kazemian

et al. 2010

Water Air Soil Pollut

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“…The method for preparing zeolite nanoparticles was performed according to published methods (14,20). Zeolite powder was converted to zeolite microparticles by sieving in analytical sieves (270 mesh, 53 micron), for separating the particles ≤ 53 microns.…”

Section: Preparation Of Zeolite Nanoparticlesmentioning

confidence: 99%

Removal of Ametryn From Aqueous Solutions With Zeolite Nanoparticles Optimized Using the Box-Behnken Design

Khodayar

Namdar

Hojati

et al. 2016

Jundishapur J Nat Pharm Prod

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“…In dry milling stage, 50 g of zeolite was milled with 10 balls for 10 min at 500 rpm and for wet milling, 50 g of zeolite was milled with 450 g of balls for 3 h at 450 rpm and 50 mL of water. The optimized milling approach suitable for the studied clinoptilolite and some of the results achieved are presented in one of our previous publications [30].…”

Section: Preparation Of Adsorbentsmentioning

confidence: 99%

Adsorption of BTEX on Surfactant Modified Granulated Natural Zeolite Nanoparticles: Parameters Optimizing by Applying Taguchi Experimental Design Method

Seifi

Torabian

Kazemian

et al. 2011

CLEAN Soil Air Water

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In this paper, a novel adsorbent developed by means of granulating of natural zeolite nanoparticles (i.e., clinoptilolite) was evaluated for possible removal of the petroleum monoaromatics (i.e., benzene, toluene, ethylbenzene, and xylene, BTEX). To do this, the natural zeolite was ground to produce nanosized particulate, then modified by two cationic surfactants and granulated. The effect of various parameters including temperature, initial pH of the solution, total dissolved solids (TDS), and concentration of a competitive substance (i.e., methyl tert-butyl ether, MTBE) were studied and optimized using a Taguchi statistical approach. The results ascertained that initial pH of the solution was the most effective parameter. However, the low pH (acidic) was favorable for BTEX adsorption onto the developed adsorbents. In this study, the experimental parameters were optimized and the best adsorption condition by determination of effective factors was chosen. Based on the S/N ratio, the optimized conditions for BTEX removal were temperature of 408C, initial pH of 3, TDS of 0 mg/L, and MTBE concentration of 100 mg/L. At the optimized conditions, the uptake of each BTEX compounds reached to more than 1.5 mg/g of adsorbents.

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Optimized experimental design for natural clinoptilolite zeolite ball milling to produce nano powders

Cited by 121 publications

References 12 publications

Adsorption of Petroleum Monoaromatics from Aqueous Solutions Using Granulated Surface Modified Natural Nanozeolites: Systematic Study of Equilibrium Isotherms

Adsorption of Petroleum Monoaromatics from Aqueous Solutions Using Granulated Surface Modified Natural Nanozeolites: Systematic Study of Equilibrium Isotherms

Removal of Ametryn From Aqueous Solutions With Zeolite Nanoparticles Optimized Using the Box-Behnken Design

Adsorption of BTEX on Surfactant Modified Granulated Natural Zeolite Nanoparticles: Parameters Optimizing by Applying Taguchi Experimental Design Method

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