Surface Titrations of Perlite Suspensions

Alkan, Mahir; ǧ, Mehmet Do

doi:10.1006/jcis.1998.5694

Cited by 44 publications

(24 citation statements)

References 19 publications

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“…5, increasing the ionic strength of solution causes a decrease in adsorption of Cu 2+ ions onto perlite surfaces. This indicates that the negative charge of the surface of perlite, which has no pH pzc in the range of pH 3-11 (42)(43)(44), decreases with increasing ionic strength, resulting in reducing the adsorption capacity.…”

Section: Adsorption Isothermsmentioning

confidence: 93%

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Adsorption of Copper(II) onto Perlite

Alkan¹,

Doğan²

2001

Journal of Colloid and Interface Science

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196

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Section: Adsorption Isothermsmentioning

confidence: 93%

“…In our previous works, we investigated the electrokinetic properties (42) and surface titration of perlite suspensions (43) and also the adsorption of methylene blue from aqueous solutions onto perlite samples (44). In the present study, removal of …”

Section: Introductionmentioning

confidence: 98%

Adsorption of Copper(II) onto Perlite

Alkan¹,

Doğan²

2001

Journal of Colloid and Interface Science

Self Cite

196

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“…The pH drift method was used to measure the pH at the potential of zero charge (pHZPC) of baryte [24]. The pH of a solution of 0.01 M NaCl was adjusted between 2 and 12.…”

Section: Experimental Methodsmentioning

confidence: 99%

Adsorption Characteristics of Rhodamine B from Aqueous Solution onto Baryte

Vijayakumar

Elango

Dharmendirakumar³

2010

CLEAN Soil Air Water

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Batch sorption experiments were carried out for the adsorption of the basic dye Rhodamine B from aqueous solution using baryte as the adsorbent. The effect of adsorbent dosage, temperature, initial dye concentration and pH were studied. Adsorption data were modeled using first and second order kinetic equations and the intra particle diffusion model. Kinetic studies showed that the adsorption process followed second order rate kinetics with an average rate constant of 0.05458 g mg -1 min -1 . Dye adsorption equilibrium was attained rapidly after 30 min of contact time. The equilibrium data was fitted to the Langmuir, Freundlich and Tempkin isotherms over a dye concentration range of 50 -250 mg/L. The adsorption thermodynamic parameters showed that adsorption was an exothermic, spontaneous and less ordered arrangement process. The adsorbent, baryte, was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. The results showed that baryte has good potential for the removal of Rhodamine B from dilute aqueous solution.

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“…Besides the diverse applications of perlite in the construction and chemical industries (Alkan and Doğan, 1998), in the last two decades perlite has become important in the horticultural industry, as a soilless growth medium and in potting mixes (Grillas et al, 2001;Papadopoulos et al, 2008). Plant growth elicits significant changes in the root environment (Hinsinger et al, 2003), therefore, growing plants in perlite raises an interesting dilemma regarding the applicability the predetermined properties of the intact material in the newly developing conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Perlite utilisation is principally based on its physical and chemical properties which, therefore, have been subjected to several comprehensive studies. The electrokinetic properties have been studied by Doğan et al (1997), the surface charge by Alkan and Doğan (1998), the zeta potential by Alkan et al (2005) and adsorption of metals by Alkan and Doğan (2001), Mathialagan and Viraraghavan (2002), and Sari et al (2007).…”

Section: Introductionmentioning

confidence: 99%