Highly adsorptive chitosan/saponin-bentonite composite film for removal of methyl orange and Cr(VI)

Laysandra, Livy; Ondang, Immanuel Joseph; Ju, Yi‐Hsu; Ariandini, Benedikta Hervina; Mariska, Agatha; Soetaredjo, Felycia Edi; Putro, Jindrayani Nyoo; Santoso, Shella Permatasari; Darsono, Farida Lanawati; Ismadji, Suryadi

doi:10.1007/s11356-018-4035-2

Cited by 34 publications

(19 citation statements)

References 45 publications

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“…The increase of solution basicity can cause an evidence decrease in the positive charges on the surfaces of SS-(Mg/Fe-CTAB)-LDH due to increase of opposite charges and this will enhance the retention of MB (cationic type) and decrease the sorption of CR (anionic type) due to electrostatic attraction/repulsion forces respectively (Baskaralingam et al, 2006). The results related with role of pH in the removal process are consistent with findings of previous studies (Anirudhan and Ramachandran, 2015;Chaari et al, 2015;Laysandra et al, 2019) and the suitable values of pH were 3 (for CR) and 12 (for MB) to ensure that the removals greater than 90%.…”

Section: Sorption Testssupporting

confidence: 88%

Precipitation of (Mg/Fe-CTAB) - Layered double hydroxide nanoparticles onto sewage sludge for producing novel sorbent to remove Congo red and methylene blue dyes from aqueous environment

et al. 2022

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Section: Sorption Testssupporting

confidence: 88%

Precipitation of (Mg/Fe-CTAB) - Layered double hydroxide nanoparticles onto sewage sludge for producing novel sorbent to remove Congo red and methylene blue dyes from aqueous environment

et al. 2022

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“…This toxicity can be minimized by using any nonchemical route and material to fabricate the metallic oxide. Another multipollutant removal study was conducted by Laysandra et al, 203 who revealed the significant adsorption capacity of the chitosan/ saponin−bentonite composite film for the effective removal of methyl orange and Cr(VI) from wastewater.…”

Section: Chitosan−clay Composites Formentioning

confidence: 99%

Chitosan–Clay Composites for Wastewater Treatment: A State-of-the-Art Review

et al. 2021

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In recent decades, increased domestic and industrial activities have led to the release of various pollutants into the aquatic environment. A robust and eco-friendly technique for removing these pollutants from wastewater is a crucial need. Among existing technologies, adsorption is considered to be a simple, cost-effective, and sustainable method. Recently, chitosan−clay nanocomposites have emerged because of their high abundance, ease of fabrication, and efficacy as adsorbents. Quantitatively, this particular class of composites is capable of removing ∼99% of dyes, metals, and harmful negative ions from various solutions. Also, the composite is designed to remove a maximum of ∼94% of the targeted herbicides from media under investigation. This review summarizes important information about this adsorbent in removing micropollutants from various water sources. A short overview of the chemical structure and the modification of chitosan and clay, along with their interaction within the composite matrix and with contaminants, is presented. Finally, a critical analysis of the removal performance of these composites compared with that of other industrial adsorbents is provided. Future research directions are suggested on the basis of the technological challenges faced in the industrial implementation of these materials.

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“…[50] However, the adsorption sites are exhausted and the amount of Cr(VI) adsorbed remained unchanged on increasing Cr(VI) ions concentration. [51] In order to optimize the design of a sorption system, the adsorption isotherm is used to express the equilibrium distribution of Cr(VI) on the surface of the MZFA/ CS composite at a specific temperature, which provides a theoretical basis, [52] such as Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) isotherm models. Figure 9 shows the variations in the adsorbed Cr(VI) ions amount onto MZFA/CS composite with an increase of Cr(VI) ions concentration.…”

Section: Effect Of Concentration and Adsorption Isothermsmentioning

confidence: 99%

Preparation of magnetic zeolite/chitosan composite using silane as modifier for adsorption of Cr(VI) from aqueous solutions

Liu

Zhang

2021

Vinyl Additive Technology

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This study aimed to prepare an efficient, cost‐effective, and separable magnetic zeolite/chitosan composite (MZFA/CS) adsorbent from solid waste to deal with the water pollution of Cr(VI). The MZFA/CS was characterized by X‐ray fluorescence (XRF), Fourier transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), and vibrating sample magnetometer (VSM) techniques. Then, the effect of pH, temperature, initial concentration of Cr(VI) ions, and contact time was considered in the study. For a sorbent dose of 0.1 g in 50 mL of a Cr(VI) solution, at a contact time of 30 min, temperature of 30°C, and a pH of 3, an adsorption capacity (qe) of 16.96 mg g−1 was achieved. Adsorption kinetics and isotherm data obtained for all adsorption systems were well‐fitted by pseudo‐second‐order and Langmuir models, respectively. The thermodynamic study suggested that the adsorption process is spontaneous and endothermic in nature. In summary, the adsorbent with better separability (Ms = 16.83 emu g−1) and adsorbability was successfully fabricated.

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Highly adsorptive chitosan/saponin-bentonite composite film for removal of methyl orange and Cr(VI)

Cited by 34 publications

References 45 publications

Precipitation of (Mg/Fe-CTAB) - Layered double hydroxide nanoparticles onto sewage sludge for producing novel sorbent to remove Congo red and methylene blue dyes from aqueous environment

Precipitation of (Mg/Fe-CTAB) - Layered double hydroxide nanoparticles onto sewage sludge for producing novel sorbent to remove Congo red and methylene blue dyes from aqueous environment

Chitosan–Clay Composites for Wastewater Treatment: A State-of-the-Art Review

Preparation of magnetic zeolite/chitosan composite using silane as modifier for adsorption of Cr(VI) from aqueous solutions

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