Adsorption of Monoazo Dyes (Crocein Orange G and Procion Red MX5B) from Water Using Raw and Acid-Treated Montmorillonite K10: Insight into Kinetics, Isotherm, and Thermodynamic Parameters

Sarma, Gautam Kumar; SenGupta, Susmita; Bhattacharyya, Krishna G.

doi:10.1007/s11270-018-3971-2

Cited by 14 publications

(6 citation statements)

References 46 publications

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“…The adsorption capacity was 5.26 mg g -1 for natural bentonite and 9.97 mg g -1 for activated bentonite. Similar results were obtained by Sarma [17] when montmorillonite was used as the adsorbent to remove Procion Red from an aqueous solution; the adsorption capacity was found to be 11.04 mg g -1 . Based on these results, it can be concluded that biochar is a more effective adsorbent with higher adsorptivity for Procion Red and higher reusability compared to those of other materials, especially clay.…”

Section: Introductionsupporting

confidence: 84%

“…Thus, higher temperatures may be favourable for adsorption, with increased adsorption capacities. In addition, based on previous results [17], it is confirmed that the adsorption process follows the Langmuir isotherm, indicating adsorption of a monolayer on the surface, although the high adsorption capacity might suggest the formation of multiple layers. As previously reported by Ribeiro et al [49], for dye systems, the Langmuir assumptions of infinite dilution and monolayer saturation apply to gas systems with uniform sites and no interaction between monolayer adsorbed molecules on a homogeneous surface.…”

Section: ) Adsorption Behaviour Of Adsorbentssupporting

confidence: 66%

“…As reported in Nazifa et al [16], the use of activated carbon from corncob to remove Procion Red resulted in a maximum adsorption capacity of 2.86 mg g -1 . Another research by Sarma et al [17] using montmorillonite to remove Procion Red produced a maximum adsorption capacity of 11.09 mg g -1 , while Procion Red adsorption using commercial activated carbon resulted in a maximum adsorption capacity of 167 mg g -1 at 273 K [18]. Biosorbent from modified avocado shells was also found to be highly effective for Procion Red removal, with a maximum adsorption capacity of 167 mg g -1 [19].…”

Section: Introductionmentioning

confidence: 97%

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Biochar from Rice Husk as Efficient Biosorbent for Procion Red Removal from Aqueous Systems

et al. 2021

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Numerous reports have elucidated the use of biochar (BC) to adsorb dyes from wastewater. However, its applicability for adsorbing Procion Red, which causes carcinogenic and mutagenic effects on aquatic life, has not been studied. In this work, biochar produced from rice husk in Sumatera, Indonesia was used as a biosorbent for Procion Red removal from aqueous systems. Rice husk-BC was characterised using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, surface area specific analysis, and scanning electron microscopy (SEM) for mor-phological analysis. The characterisation showed a (002) reflection peak at 2θ = 23° with broad and quite intense diffraction, which indicates reflection of electromagnetic waves by silicates, oxides and carbon present in the rice husk-BC. The surface area and SEM morphologies confirm that after pyrolysis, the surface of the rice husk changed. The FTIR spectra confirm the presence of functional groups such as the carboxylic acids and aromatic compounds. The surface area of rice husk-BC was up to ten times that of its raw material. The results of adsorption studies indicate that adsorption of Procion Red on rice husk-BC follows a pseudo-second-order (PSO) reaction with a rate constant of 0.044 min-1 and Langmuir isotherm models with a coefficient of correlation close to unity. The maximum adsorption capacity increased from 36.900 mg g-1 for the rice husk to 84.034 for the rice husk-BC. Thermodynamic analysis showed positive enthalpy and entropy, indicating that Procion Red adsorption is endothermic; thus, the Gibbs energy values decreased with increase in temperature, indicating that high temperatures are favourable for the adsorption process. Furthermore, the study of adsorption of Procion Red on rice husk-BC and regeneration of the adsorption capacity of rice husk-BC showed the largest drop in the fourth and last cycle.

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Section: Introductionsupporting

confidence: 84%

Section: ) Adsorption Behaviour Of Adsorbentssupporting

confidence: 66%

Section: Introductionmentioning

confidence: 97%

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Biochar from Rice Husk as Efficient Biosorbent for Procion Red Removal from Aqueous Systems

et al. 2021

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“…S3. Accordingly, the adsorption occurred at 467 and 531 cm −1 can be related to Si-O-Mg and Si-O-Al bending vibrations, respectively 30 . Two peaks at 696 and 789 cm −1 asserted the presence of Si-O band 26,27 .…”

Section: Field Emission Scanning Electron Microscopy (Fe-sem) With En...mentioning

confidence: 95%

“…The Si-O stretching vibration appeared at the peak 1034 cm −126-32 . An observed peak around 3418 was described to the stretching vibration of the OH groups, revealing the adsorption of water on MMT-K10 surface 18,27,[30][31][32] .…”

Section: Field Emission Scanning Electron Microscopy (Fe-sem) With En...mentioning

confidence: 99%

Modeling, optimization and efficient use of MMT K10 nanoclay for Pb (II) removal using RSM, ANN and GA

Hamidi

Baghani

Kasraee

et al. 2023

Sci Rep

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Regarding the long-term toxic effects of Pb (II) ions on human health and its bioaccumulation property, taking measures for its reduction in the environment is necessary. The MMT-K10 (montmorillonite-k10) nanoclay was characterized by XRD, XRF, BET, FESEM, and FTIR. The effects of pH, initial concentrations, reaction time, and adsorbent dosage were studied. The experimental design study was carried out with RSM-BBD method. Results prediction and optimization were investigated with RSM and artificial neural network (ANN)-genetic algorithm (GA) respectively. The RSM results showed that the experimental data followed the quadratic model with the highest regression coefficient value (R2 = 0.9903) and insignificant lack of fit (0.2426) showing the validity of the Quadratic model. The optimal adsorption conditions were obtained at pH 5.44, adsorbent = 0.98 g/l, concentration of Pb (II) ions = 25 mg/L, and reaction time = 68 min. Similar optimization results were observed by RSM and artificial neural network-genetic algorithm methods. The experimental data revealed that the process followed the Langmuir isotherm and the maximum adsorption capacity was 40.86 mg/g. Besides, the kinetic data indicated that the results fitted with the pseudo-second-order model. Hence, the MMT-K10 nanoclay can be a suitable adsorbent due to having a natural source, simple and inexpensive preparation, and high adsorption capacity.

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A Mini-Review on Natural and Modified Clays for Removal of Organic and Inorganic Pollutants From Wastewater and Their Other Applications

El Alouani,

Aouan,

Bassam

et al. 2024

Studies in Big Data

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Adsorption of Monoazo Dyes (Crocein Orange G and Procion Red MX5B) from Water Using Raw and Acid-Treated Montmorillonite K10: Insight into Kinetics, Isotherm, and Thermodynamic Parameters

Cited by 14 publications

References 46 publications

Biochar from Rice Husk as Efficient Biosorbent for Procion Red Removal from Aqueous Systems

Biochar from Rice Husk as Efficient Biosorbent for Procion Red Removal from Aqueous Systems

Modeling, optimization and efficient use of MMT K10 nanoclay for Pb (II) removal using RSM, ANN and GA

A Mini-Review on Natural and Modified Clays for Removal of Organic and Inorganic Pollutants From Wastewater and Their Other Applications

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