Kinetic and thermodynamic adsorption studies of congo red on bentonite

Taher, Tarmizi; Mohadi, Risfidian; Rohendi, Dedi; Lesbani, Aldes

doi:10.1063/1.4978101

Cited by 26 publications

(15 citation statements)

References 16 publications

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“…Compared with RB, CAB showed better adsorption capacity for CR i.e., CR removal efficiency by CAB in first 5 min was 45%, which was enhanced to 87% after 120 min. By comparing the CR removal efficiency (87%) by CAB with some literature reports, one can conclude that the newly designed CAB had faster reaction kinetics and hence can be deemed greatly cost effective on industrial level applications (Toor et al, 2015;Tarmizi et al, 2017).…”

Section: Effect Of Contact Time On Cr Adsorptionmentioning

confidence: 95%

Citric Acid Modified Bentonite for Congo Red Adsorption

et al. 2019

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Raw bentonite (RB) was chemically modified by citric acid (CA) to obtain a low-cost and environment-friendly citric acid incorporated bentonite (CAB) adsorbent, which was applied for the adsorptive removal of Congo Red (CR). The effect of adsorbent dosage, contact time, ionic strength, surfactant, and pH on adsorption was investigated. Adsorption equilibrium data fitted well with Langmuir model while the Langmuir adsorption capacity of CR on CAB reached up to 384 mg•g −1. Furthermore, CR adsorption on CAB followed pseudo-second kinetic model while intra-particle diffusion was not the only rate-limiting step as determined from intra-particle diffusion model investigation. RB and CAB were characterized by XRD, FT-IR, and BET techniques. A proposed mechanism for the adsorption of CR over CAB suggested the chemical adsorption phenomenon is mainly controlled by chelation, hydrogen bonding, and fixing.

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Section: Effect Of Contact Time On Cr Adsorptionmentioning

confidence: 95%

Citric Acid Modified Bentonite for Congo Red Adsorption

et al. 2019

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“…Indonesia as one of the mineral-rich country has many natural bentonites deposit almost in every province [3]. Each bentonite deposit has their particular content composition that differs from the other deposit.…”

Section: +mentioning

confidence: 99%

“…Its color will impart an aesthetic appearance in the water body, and moreover, it has high organic content which is not quickly degraded in the natural condition, high toxicity, mutagenicity, and carcinogenicity even in the low concentration state [3]. The contamination of dye in the wastewater hinders the passage of the light penetration into the water body, and the photosynthesis process will be disturbed [4].…”

Section: Introductionmentioning

confidence: 99%

Thermal Activated of Indonesian Bentonite as A Low-Cost Adsorbent for Procion Red Removal from Aqueous Solution

Taher

Rohendi²,

Mohadi³

et al. 2018

J. Pure App. Chem. Res.

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Abundant and inexpensive Indonesian natural bentonite was activated by thermal activation at 500 o C for removal of procion red dye as one of the most used synthetic dye in the traditional songket fabric production around Palembang city. Activated bentonite product was characterized by FT-IR, XRD, and thermal analysis. The adsorption process was conducted in batch adsorption system by applying various adsorption parameter condition including, initial pH condition, contact time, and initial dye concentration. The activated bentonite characterization indicates that during the activation process, the structure of the original bentonite was not changed significantly and the result of the thermal analysis revealed that thermal activation at 500 o C was draining the water content without destructing the silica-alumina framework of bentonite. The adsorption kinetics study shows that the procion red adsorption into the activated bentonite follows the pseudo-second order kinetic model. The isotherm adsorption study revealed that procion red adsorption into activated bentonite adapted the Langmuir adsorption isotherm.

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“…One of the most interesting material is layered materials (Mishra et al, 2018). Based on its existence, nature layered materials such as kaolinite and bentonite (Taher et al, 2018(Taher et al, , 2017 then synthesized layered material such as layered double hydroxides or hydrotalcite (Jadhav et al, 2007;Lesbani et al, 2018;Palapa et al, 2018b). Nowadays, researchers had been interesting to layered materials especially layered double hydroxides.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Zn/Al, Zn/Fe, and Zn/Cr Layered Double Hydroxides: Effect of M3+ ions Toward Layer Formation

Palapa

Saria²,

Taher³

et al. 2019

STI

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Layered double hydroxides are composed by substitution of metal cation divalent and trivalent. Metal cation divalent and trivalent can be changed. In this work, e ect metal cation trivalent (M 3+) toward layer formation were studied. Synthesis of LDHs has used co-precipitation methods with molar ratio 3:1 and kept pH at 10. The result of synthesis was characterized by X-ray Di raction (XRD) and Fourier Transform Infrared (FT-IR) analyses.

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Kinetic and thermodynamic adsorption studies of congo red on bentonite

Cited by 26 publications

References 16 publications

Citric Acid Modified Bentonite for Congo Red Adsorption

Citric Acid Modified Bentonite for Congo Red Adsorption

Thermal Activated of Indonesian Bentonite as A Low-Cost Adsorbent for Procion Red Removal from Aqueous Solution

Synthesis and Characterization of Zn/Al, Zn/Fe, and Zn/Cr Layered Double Hydroxides: Effect of M3+ ions Toward Layer Formation

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