Sorption of lead, copper, cadmium, zinc, and nickel by marine algal biomass: characterization of biosorptive capacity and investigation of mechanisms

Sheng, Ping; Ting, Yen‐Peng; Chen, Jiaping; Hong, Liang

doi:10.1016/j.jcis.2004.01.036

Cited by 1,018 publications

(541 citation statements)

References 17 publications

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“…The search for low cost, and easily available adsorbents has led to the investigation of materials of agricultural and biological origin, alongside those of industrial by-products as adsorbents for removal of heavy metals [13][14][15][16][17]. Examples of such low cost adsorbents are clay [18], cotton [19], wool fiber [20], tea leaves [21] and other materials [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Removal of lead(II) ions from aqueous solutions using activated carbon from Militia ferruginea plant leaves

Mengistie

Rao

Singanan

2008

Bull. Chem. Soc. Eth.

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ABSTRACT. The adsorption of lead(II) on to activated carbon developed from an indigenous Ethiopian medicinal plant leaves namely Birbira (Militia ferruginea) was investigated to assess the possible use of this adsorbent. The influences of contact time, adsorbent dose, Pb(II) concentration, pH and temperature on adsorption were investigated. The maximum adsorption took place at 3 h. at a dose of 4.0 g of adsorbent, and 97.3 % of Pb . The percentage of adsorption had increased with the increasing temperature. The positive value of ∆H indicated that the adsorption of lead ions on the adsorbent was an endothermic process. The values of free energy (∆G) were negative as expected for a spontaneous process. The decrease in ∆G value with increasing temperature revealed that adsorption of the ion on the adsorbent became favorable at a higher temperature. The calculated value of ∆H was 25.05 kJ mol -1 , ∆S was 135.48 JK -1 mol -1 and ∆G was also calculated for each temperature. The two theoretical adsorption isotherms, namely, Langmuir and Freundlich were used to describe the experimental results. The Freundlich adsorption isotherm best fits and adsorption capacity was calculated to be 3.3 mg of Pb(II) per g of adsorbent. The adsorption followed the first order kinetics and was found to be pH dependent being maximum at pH 4.0. The pH effect and desorption studies showed that ion exchange mechanism might be involved in the adsorption process. Reuse of the desorbed bio-adsorbent is possible. The effect of foreign ions on the removal of Pb(II) has been investigated. The removal of Pb(II) from industrial wastewater sample was also tested and showed that more than 97 % removal was possible. The results showed that activated carbon prepared from Birbira (Militia ferruginea) leaves could be used for the removal of Pb(II) from wastewater.

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Section: Introductionmentioning

confidence: 99%

Removal of lead(II) ions from aqueous solutions using activated carbon from Militia ferruginea plant leaves

Mengistie

Rao

Singanan

2008

Bull. Chem. Soc. Eth.

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“…The initial pH of adsorption medium is related to metal species in solution and the surface properties of the adsorbents in terms of dissociation of functional groups and surface charge. 24 So it not only affects the adsorption mechanism onto the adsorbent surface, but also influences the nature of the physicochemical interaction of the species in solution and the adsorptive sites of adsorbent.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Adsorbent for Pb(II)-capture by using Glow Discharge Electrolysis Plasma

Gao¹,

Wang²,

Yang³

et al. 2010

Bulletin of the Korean Chemical Society

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A novel polyacrylamide grafted hydrous ferric oxide adsorbent composite has been synthesized by using glow discharge electrolysis plasma. To optimize the synthesis conditions, the following parameters were examined in detail: applied power, discharge time, post polymerization temperature, post polymerization time, amount of crosslinking agent and hydrous ferric oxide gel added and so on. The adsorbent was characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The removal percentage of the adsorbent in Pb(II) solution was examined and the data obtained showed that the adsorbent composite has a high capacity for lead ion. For the use in wastewater treatment, the thermodynamic and kinetic of Pb(II)-capture were also studied. Results indicated that the adsorption reaction was a spontaneous and an endothermic process, and it seems to be obeyed a pseudo-secondorder rate model. Moreover, the adsorption isotherm of Pb(II)-capture is following the Langmuir and Freundlich isotherm models.

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“…Satu situs aktif yang terdapat pada permukaan biosorben hanya dapat mengikat satu ion krom pada limbah cair batik. Sheng et al, (2004);Chen et al, (2005) menyatakan bahwa adsorpsi pada lapisan tunggal hanya akan menyediakan satu situs aktif untuk satu molekul. Proses adsorpsi logam berat oleh S. cinereum dan limbah baglog terjadi karena adanya interaksi antara situs yang bermuatan negatif yang terdapat pada dinding sel berupa fosfodiester, karboksilat, fosfat, thiolat dan gugus amida dengan ion krom pada limbah cair batik yang bermuatan positif.…”

Section: Hasil Dan Pembahasanunclassified

Biosorpsi Krom Total dalam Limbah Cair Batik dengan Biosorben yang Dikemas dalam Kantung Teh Celup

et al. 2017

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Chromium content on batik wastewater has been reduced by biosorption using cheap, abundant, and easily obtained biosorbent, such as Sargassum cinereum and Pleurotus ostreotus baglog waste. Biosorbent surface can be expanded by reducing its particle size. However, small size particle very difficult to be applied, but it application can be improved through shape simplification or tea bag packaging. This research aims to obtain the optimum of biosorbent ratio and particle size in chromium adsorption. This experimental research was conducted using Spilt Plot Design. The obtained data were analyzed using F-test with the significance level of 5%. The result showed that the optimum adsorption percentage was obtained in biosorbent ratio of 3:1 with particle size of 425-675 μm that is 62.69%. Biosorbent packed in the tea bags is effective to removal chromium in batik wastewater.

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Sorption of lead, copper, cadmium, zinc, and nickel by marine algal biomass: characterization of biosorptive capacity and investigation of mechanisms

Cited by 1,018 publications

References 17 publications

<b>Removal of lead(II) ions from aqueous solutions using activated carbon from <i>Militia ferruginea</i> plant leaves</b>

<b>Removal of lead(II) ions from aqueous solutions using activated carbon from <i>Militia ferruginea</i> plant leaves</b>

Synthesis and Characterization of Adsorbent for Pb(II)-capture by using Glow Discharge Electrolysis Plasma

Biosorpsi Krom Total dalam Limbah Cair Batik dengan Biosorben yang Dikemas dalam Kantung Teh Celup

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