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A platform for research: civil engineering, architecture and urbanism
Adsorption of a cationic methylene blue dye on an Algerian palygorskite
https://orcid.org/0000-0003-0266-8648
Abstract The capacity of an Algerian Tertiary sedimentary palygorskite to remove methylene blue was studied. The raw material was characterized using X-ray diffraction, infrared spectroscopy, and chemical, granulometric and micotextural analyses. Kinetic experiments were carried out to study the effect of contact time, stirring speed, initial dye concentration and adsorbent mass on the adsorption processes. The palygorskite-rich material mainly consists of this fibrous clay (72%) and calcite (19%) with minor amounts of dolomite (5%), illite (2%) and quartz (2%). After 5 min contact time at room temperature, the adsorption reaction of a 50 mL solution containing 10 ppm of methylene blue on 50 mg of Cal-Pal as adsorbent reached equilibrium, and 97% of cationic dye was fixed. Temperature did not have a significant influence on methylene blue adsorption. The obtained adsorption isotherm indicates high affinity between the adsorbent and the adsorbate. The use of the studied Algerian palygorskite-rich sediment may have great potential for the elimination of textile dyes.
Graphical abstract Display Omitted
Highlights Adsorption capacity of methylene blue on Algerian palygorskite is estimated to be 97%. Methylene blue adsorption on palygorskite is spontaneous and an endothermic process. Acidic surface of palygorskite is favorable for the basic dye adsorption.
Adsorption of a cationic methylene blue dye on an Algerian palygorskite
https://orcid.org/0000-0003-0266-8648
Abstract The capacity of an Algerian Tertiary sedimentary palygorskite to remove methylene blue was studied. The raw material was characterized using X-ray diffraction, infrared spectroscopy, and chemical, granulometric and micotextural analyses. Kinetic experiments were carried out to study the effect of contact time, stirring speed, initial dye concentration and adsorbent mass on the adsorption processes. The palygorskite-rich material mainly consists of this fibrous clay (72%) and calcite (19%) with minor amounts of dolomite (5%), illite (2%) and quartz (2%). After 5 min contact time at room temperature, the adsorption reaction of a 50 mL solution containing 10 ppm of methylene blue on 50 mg of Cal-Pal as adsorbent reached equilibrium, and 97% of cationic dye was fixed. Temperature did not have a significant influence on methylene blue adsorption. The obtained adsorption isotherm indicates high affinity between the adsorbent and the adsorbate. The use of the studied Algerian palygorskite-rich sediment may have great potential for the elimination of textile dyes.
Graphical abstract Display Omitted
Highlights Adsorption capacity of methylene blue on Algerian palygorskite is estimated to be 97%. Methylene blue adsorption on palygorskite is spontaneous and an endothermic process. Acidic surface of palygorskite is favorable for the basic dye adsorption.
Adsorption of a cationic methylene blue dye on an Algerian palygorskite
https://orcid.org/0000-0003-0266-8648
Abstract The capacity of an Algerian Tertiary sedimentary palygorskite to remove methylene blue was studied. The raw material was characterized using X-ray diffraction, infrared spectroscopy, and chemical, granulometric and micotextural analyses. Kinetic experiments were carried out to study the effect of contact time, stirring speed, initial dye concentration and adsorbent mass on the adsorption processes. The palygorskite-rich material mainly consists of this fibrous clay (72%) and calcite (19%) with minor amounts of dolomite (5%), illite (2%) and quartz (2%). After 5 min contact time at room temperature, the adsorption reaction of a 50 mL solution containing 10 ppm of methylene blue on 50 mg of Cal-Pal as adsorbent reached equilibrium, and 97% of cationic dye was fixed. Temperature did not have a significant influence on methylene blue adsorption. The obtained adsorption isotherm indicates high affinity between the adsorbent and the adsorbate. The use of the studied Algerian palygorskite-rich sediment may have great potential for the elimination of textile dyes.
Graphical abstract Display Omitted
Highlights Adsorption capacity of methylene blue on Algerian palygorskite is estimated to be 97%. Methylene blue adsorption on palygorskite is spontaneous and an endothermic process. Acidic surface of palygorskite is favorable for the basic dye adsorption.
Adsorption of a cationic methylene blue dye on an Algerian palygorskite
Dali Youcef, Lamia (author) / Belaroui, Lala Setti (author) / López-Galindo, Alberto (author)
Applied Clay Science ; 179
2019-05-22
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2015
British Library Online Contents | 2015