Adsorption of heavy metal ion from aqueous single metal solution by chemically modified sugarcane bagasse

Junior, Osvaldo Karnitz; Gurgel, Leandro Vinícius Alves; Melo, Júlio C.P. de; Botaro, Vagner Roberto; Melo, Tânia Márcia Sacramento; Freitas, Rossimiriam Pereira de; Gil, Laurent Frédéric

doi:10.1016/j.biortech.2006.05.013

Cited by 369 publications

(155 citation statements)

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“…To date, removal of heavy metals, especially lead ions by means of bagasse, as a potentially effective adsorbent, has been developed (19)(20)(21). Various functional groups such as amino, hydroxyl, carboxyl, sulfate, and phosphate can be found in the chemical structure of bagasse, which may aid to adsorb heavy metals onto its surface (22).…”

Section: Introductionmentioning

confidence: 99%

Removal of Pb (II) From Contaminated Water by Bagasse Adsorbent Modified with Dithizone

Shiralipour

Hamoule

Manochehripour

2018

Jundishapur J Health Sci

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Background: Nowadays, water pollution by toxic elements has become a universal environmental issue. Lead, as a toxic element, is approximately enhanced in the environment by industrial development. The potential risk of lead to health has attracted the interest of researchers to eliminate it from contaminated water. Objectives: In the present study, a dithizone-modified bagasse adsorbent, used for removing lead ions from aqueous solutions, was successfully prepared. Methods: The prepared adsorbent was characterized by FT-IR and XRD techniques. The adsorptive properties of adsorbent were studied at room temperature. Different parameters like pH value, solution concentration, adsorption time, and amount of adsorbent were optimized. Results: Results show that the adsorption of lead on dithizone-modified bagasse fitted well to the Freundlich isotherm equation following the Langmuir isotherm. The maximum removal efficiency was obtained to be more than 99.5% in a short contact time (1.0 minutes) at pH 6. The loading capacity was studied and obtained to be 37.20 mg g -1 . The adsorption process was replicated for 4 times without a considerable loss in its efficiency (> 95%). Conclusions: High efficiency at a short time, recyclability, and biodegradability are the main advantages of this adsorbent. The proposed method is cost-effective and environmentally friendly.

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Section: Introductionmentioning

confidence: 99%

Removal of Pb (II) From Contaminated Water by Bagasse Adsorbent Modified with Dithizone

Shiralipour

Hamoule

Manochehripour

2018

Jundishapur J Health Sci

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“…Parámetros cinéticos calculados en la adsorción de Pb (II). [20], con anhidrido succínico/1,3 diisopropilcarbodimida (313 mg/g) [22], rosa bourbonia (120,48 mg/g) [23].…”

Section: Tablaunclassified

“…de otros autores, también se obtienen mejores eficiencias; bagazo de caña modificado con trietilentetramina (222,22 mg/g) [21], con nanotubos de carbono (56,60mg/g) [20], con anhidrido succínico/1,3 diisopropilcarbodimida (313 mg/g) [22], rosa bourbonia (120,48 mg/g) [23].…”

Section: Conclusionesunclassified

Evaluación de la biosorción con bagazo de palma africana para la eliminación de Pb (II) en solución

et al. 2015

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RESUMENSe propone la adsorción de Pb (II) usando bagazo de palma tratado químicamente con ácido cítrico, se elige este material por ser un desecho agroindustrial ampliamente disponible en la región Caribe colombiana. Los experimentos fueron llevados a cabo en sistema batch en solución acuosa de plomo a una concentración de 100 ppm. La determinación de la concentración de metal al final del proceso se midió por absorción atómica. La caracterización de los materiales adsorbentes usados se hizo por FTIR encontrando que los grupos hidroxilos y carboxílicos son los principales responsables de la capacidad de adsorción. Además, fue encontrado que el pH es el factor de mayor incidencia en el proceso, siendo el de 6 el valor óptimo. Por otra parte, se encontró que el Pb (II) presenta una sorción rápida durante los primeros 10 minutos, además el modelo de Elovich fue el de mejor ajuste. La capacidad máxima de adsorción según la isoterma de Langmuir fue de 162 y 451 mg/g para el bagazo sin modificar y modificado respectivamente, estableciendo que la modificación fue altamente eficiente.Palabras Clave: Adsorbente, Plomo, Residuo, Remoción, Tratamiento químico. ABSTRACTIt was studied the adsorption of Pb (II) using palm bagasse chemically treated with citric acid. This material is chosen due to is an available waste in the Colombian Caribbean region. The experiments were carried out in batch system in aqueous solution of lead at a concentration of 100 ppm. The determination of the heavy concentration at the end of the process was measured by atomic absorption. The characterization of adsorbent materials used was carry out using FTIR. It was found that the hydroxyl and carboxyl groups are mainly responsible of adsorption capacities. Furthermore, it was found that the pH is the most prevalent factor in the process. The optimum value was 6. Moreover, it was found that the Pb (II) exhibits rapid sorption during the first 10 minutes. The process was better fitted by the Elovich model. The maximum adsorption capacity according to Langmuir isotherm was 162 and 451 mg/g for unmodified and modified bagasse respectively. It was established that the chemical treatment was highly efficient.

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“…Briefly, 0.10 g of SMC was immersed in 80 mL of NaOH (0.01 mol/L) and stirred for 30 min. The mixture was filtered, and 20 mL of filtrate was titrated with HCl (0.01 mol/L) in three parallel titrations (Karnitz et al 2007). The carboxyl functional groups were calculated according to Eq.…”

Section: Characterization Of the Materialsmentioning

confidence: 99%

Chromium(VI) Removal by Fe(III)-loaded Succinylated Mercerized Cellulose from Aqueous Solution

Sun

Wang²,

Liu

et al. 2016

BioResources

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A new chelating material from mercerized cotton linter was prepared by a reaction with succinic anhydride in the presence of toluene/triethylamine and a 4-dimethylaminopyridine catalyst, followed by reacting with Fe(III) to obtain the final product. The materials were characterized by Fourier transform infrared spectrometry, scanning electron microscopy, and energy dispersive spectrometer; the adsorption of chromium(VI) from an aqueous solution was examined. The Langmuir isotherm accurately fit the experimental data, and the calculated adsorption ability of Fe(III)-loaded adsorbent for chromium(VI) was 11.1 mg/g. The adsorption process followed a pseudo-second-order kinetic model.

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Adsorption of heavy metal ion from aqueous single metal solution by chemically modified sugarcane bagasse

Cited by 369 publications

References 14 publications

Removal of Pb (II) From Contaminated Water by Bagasse Adsorbent Modified with Dithizone

Removal of Pb (II) From Contaminated Water by Bagasse Adsorbent Modified with Dithizone

Evaluación de la biosorción con bagazo de palma africana para la eliminación de Pb (II) en solución

Chromium(VI) Removal by Fe(III)-loaded Succinylated Mercerized Cellulose from Aqueous Solution

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