Adsorptive properties of Moroccan clays for the removal of arsenic(V) from aqueous solution

Bentahar, Yassine; Hurel, Charlotte; Draoui, Khalid; Khaïroun, S.; Marmier, Nicolas

doi:10.1016/j.clay.2015.11.008

Cited by 107 publications

(43 citation statements)

References 45 publications

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“…Langmuir and Freundlich isotherm graphics for Cr metal can be seen in Figure 6 and 7. Langmuir isotherms show that the adsorption process between adsorbent and adsorbate chemically occurred to form a monolayer (Bentahar et al 2016). From Figure 6, the value of R 2 close to 1, precisely the R 2 value is 0.9896 indicating that the adsorbent active group interacts with Cr metal through chemical bond.…”

Section: Isotherm Adsorptionmentioning

confidence: 80%

Short Communication: The utilization and effectiveness test of andisol soil-bioball-Agrobacterium sp. toward heavy metal chrome removal

Pranoto¹,

Rosariastuti²,

Prihandoko³

2018

Biodiversitas

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Abstract. Mulyanto D, Iskandar J, Abdoellah OS, Iskandar BS, Riawanti S, Partasasmita R. 2018. Leunca (Solanum americanum Mill.): The uses as vegetable in two villages in Upper Citarum Area, Bandung, West Java, Indonesia. Biodiversitas 19: 1941-1954. Leunca is known as botanical name as Solanum americanum Mill, Family of Solanaceae. In recent years, academic interest has been increasing. After so long studied as weeds, today leunca has also studied because of its important meaning as crop that has high nutritional and economic value in relation to food resilience of developing countries, as because of its chemical substances with its medicinal properties. Leunca was recorded in colonial period by botanists or agricultural scientists’ report as local vegetable in rural of West Java also in modern time by anthropologist or ecologists who studying rural population. In the recent time in Indonesia, leunca studies almost all have been focused on its pharmacological, agronomic, and economic aspects. The aspect that is related to Sundanese sociocultural system was almost neglected. This paper presents the finding of research on ethnobotany of leunca includes landraces, agronomical and utilization, traditional institutional aspect, and culinary culture food habits of leunca in rural Sundanese people. Method used in this study mixed-method of qualitative and quantitative was applied in this study, while some techniques including observation and semi-structured interviews were carried in the field research. The result of study showed that based on informants it has revealed that 7 kinds of plant that are named as leunca, however, only 3 kinds of leunca that are grown in their village. Among 7 kinds of leunca, leunca biasa (S. americanum) has been predominantly consumed both fruits and leaves. There is various food dishes are consumed fresh or cooked. Various dishes of leunca biasa have been culturally integrated everyday life of people and culturally as part of people identity of Sundanese people (urang Sunda). Other kinds of leunca, including leaves of leunca manuk (variety of S. americanum) have been consumed leunca as cooked vegetable, and its leaves have been used as traditional medicine of pet chicken disease.

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Section: Isotherm Adsorptionmentioning

confidence: 80%

Short Communication: The utilization and effectiveness test of andisol soil-bioball-Agrobacterium sp. toward heavy metal chrome removal

Pranoto¹,

Rosariastuti²,

Prihandoko³

2018

Biodiversitas

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“…Additionally, the processes that are compatible with Langmuir isotherm model are usually characterized by chemical adsorption, meaning after being reached to adsorption saturation point, which is called as maximum monolayer capacity, no following sorptions occur. This model was applied to many studies concerning the adsorption of various metal ions on different kinds of clay minerals for years (49)(50)(51)(52)(53). These results indicate that Cs + ions were adsorbed on a monolayer section of porous vermiculite structure with uniform energies.…”

Section: Langmuir Isotherm Modelmentioning

confidence: 99%

Removal of Cesium From Aqueous Solution by Adsorption Onto Si̇vas-Yildizeli̇ (Turki̇ye) Vermiculite: Equilibrium, Kinetic and Thermodynamic Studies

Akalın¹,

Hiçsönmez²,

Yılmaz³

2017

Journal of the Turkish Chemical Society, Section A: Chemistry

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In this study, cesium adsorption performance of raw vermiculite obtained from Sivas-Yıldızeli region of Turkey was investigated using batch adsorption method. In order to obtain the optimum adsorption conditions; different adsorbent dosages, contact times, solution pH's, initial cesium concentrations and temperature ranges were investigated. The concentration of cesium in solution was determined by ICP-OES. Kinetic studies demonstrated that adsorption process was in accordance with pseudo-second order kinetic model and equilibrium isotherm modeling studies showed that the process was compatible with Langmuir, Freundlich and Temkin adsorption isotherm models, indicating that Cs adsorption process had both physical and chemical character. Negative Gibbs energy values obtained from thermodynamic studies revealed that the adsorption process was spontaneous and had a high feasibility. Additionally, the negative enthalpy value indicated that process was exothermic, suggesting that the adsorbed Cs + ions decreased with increasing reaction temperatures. Positive entropy value showed that disorderliness between solid-liquid phase increased during adsorption. Results clearly indicate that vermiculite mineral has a promising potential in removing Cs + ions from aqueous media which leads mineral may also be used in decomposing and efficiently removing radioactive cesium from contaminated waters.

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“…Langmuir isotherms show that the adsorption process between adsorbent and adsorbate chemically occurs to form a monolayer. 19 From Fig.-6, the value of R 2 close to 1, precisely the R 2 value is 0.9998 indicating that the adsorbent active group interacts with Cu (II) metal ion through a chemical bond. Possible reactions that occur when the adsorption process is shown in Fig.-7.…”

Section: Bekonang Clay and Andisol Soil Composites Pranoto Pranoto Etmentioning

confidence: 99%

"Application of Bekonang Clay and Andisol Soil Composites as Copper (Ii) Metal Ion Adsorbent in Metal Crafts Wastewater "

2018

RJC

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The utilization of bekonang clay and andisol soil composite as the adsorbent of Cu (II) metal ion has been studied. The aims of this study were to determine the optimum conditions of adsorption including pH of the copper solution, adsorbent calcination temperature, composite composition, adsorbent contact time, and their adsorption capacity in metal craft wastewater. Bekonang clay was activated with 1.5M H2SO4 and andisol soil with 3M NaOH. Experiment of adsorption on Cu(II) metal ion was performed at pH solution of 1, 2, 3, 4, 5, 6, 7, and 8, calcination temperature of 100, 200, 300 and 400 °C, variation of composition bekonang clay and andisol soil composite of 100:0, 25:75, 50:50, 75:25, and 0:100 (w/w) and contact time of 15, 30, 60, and 90 minutes in the batch system. Measurement of final concentration at equilibrium was conducted using AAS. The optimum condition of copper(II) metal ion adsorption was obtained at pH 6, calcination temperature 400 °C, bekonang clay and andisol soil composition 25:75 (w/w), contact time 30 minutes with adsorption capacity by 0.37 mg/g. Adsorption isotherm followed Langmuir and Freundlich isotherm. Adsorbent adsorption capacity in the metal crafts wastewater was 17.38 mg/g.

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Adsorptive properties of Moroccan clays for the removal of arsenic(V) from aqueous solution

Cited by 107 publications

References 45 publications

Short Communication: The utilization and effectiveness test of andisol soil-bioball-Agrobacterium sp. toward heavy metal chrome removal

Short Communication: The utilization and effectiveness test of andisol soil-bioball-Agrobacterium sp. toward heavy metal chrome removal

Removal of Cesium From Aqueous Solution by Adsorption Onto Si̇vas-Yildizeli̇ (Turki̇ye) Vermiculite: Equilibrium, Kinetic and Thermodynamic Studies

"Application of Bekonang Clay and Andisol Soil Composites as Copper (Ii) Metal Ion Adsorbent in Metal Crafts Wastewater "

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