Efficient Removal of Methylene Blue by Adsorption Using Composite Based Ca/Al Layered Double Hydroxide-Biochar

doi:10.30955/gnj.003359

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…Among the hydrotalcite-like materials, Ca–Al LDH intercalated with CO 3 2– has the lowest production cost, which is more suitable for large-scale application as an adsorbent in the adsorption field. − Herein, Ca–Al LDH intercalated with CO 3 2– was cleanly prepared from Ca(OH) 2 , Al(OH) 3 , and CO 2 , and its calcined product was applied to the adsorption of glyphosate. The effects of preparation methods on the adsorption of glyphosate by calcined Ca–Al LDH were investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Preparation Methods on the Adsorption of Glyphosate by Calcined Ca–Al Hydrotalcite

2021

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Calcined Ca−Al hydrotalcites were prepared by the clean method (Ca-LDO-1) and traditional co-precipitation method (Ca-LDO-2), respectively. The effect of the preparation method on the adsorption of glyphosate by calcined Ca−Al hydrotalcites was investigated. The adsorbents were also characterized by X-ray diffraction (XRD), thermogravimetric (TG) analysis, inductively coupled plasma optical emission spectroscopy (ICP-OES), and low-temperature N 2 adsorption− desorption, respectively. Compared with Ca-LDO-2, Ca-LDO-1 had higher specific surface area and pore volume, which caused it to show better adsorption performance and reusability for the adsorbing of glyphosate. In addition, the kinetics and thermodynamics of the adsorption of glyphosate by Ca-LDO-1 were studied. The results showed that it was more consistent with the pseudo-secondorder kinetic equation and Langmuir isotherm equation.

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Section: Introductionmentioning

confidence: 99%

Effect of Preparation Methods on the Adsorption of Glyphosate by Calcined Ca–Al Hydrotalcite

2021

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Unlocking the Microbial Potential of Intercalated Calcium-aluminum Layered Double Hydroxide-palmitic Acid

Johari,

Sheikh Mohd Ghazali,

Ismail

et al. 2024

CNM

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Introduction:: An efficient and coherent drug delivery system is imperative in detouring a repetitive administration of high doses of the drug to achieve an effective therapeutic effect. This study, therefore, aims to synthesize the nanocomposite (CAPA) utilizing the layered double hydroxide as a drug carrier that can safeguard the medicine and improve its bioavailability while minimizing the adverse impact on the biological process. Method:: The Calcium-aluminum Layered Double Hydroxide (CAL) was synthesized via the coprecipitation method followed by integrating palmitic acid (PA) drug into that host employing a similar approach. The successful intercalation was assessed utilizing X-ray diffraction (PXRD) analysis and Fourier transform infrared spectroscopy (FTIR). The characterization of the material was evaluated by using a thermogravimetric-derivative thermogravimetric analysis (TGA-DTG) and accelerated surface area and porosity (ASAP) analyzer. Result:: The increment of basal spacing of CAPA (15.21Å) synthesized in this study implies the retainment of PA in the interlayer space of CAL. The FTIR spectra of CAPA, with the elimination of the nitrate ion peak at 1359.87 cm-1 and the appearance of carboxylate ion at 1643.17 cm-1, hint at the existence of PA in the host layer. The surface area of CAPA exhibited a value of 19.8 m2g-1, bigger than that of hosts, while its pore size is within the micropores range. Conclusion:: The TGA analysis revealed that the thermal stability of PA was improved following the intercalation process due to the decomposition of the PA core that occurs at 260°C. The antimicrobial activity proposes that the synthesized CAPA can retain the drug's activity against S. aureus, emphasizing the ability of CAL as a potential drug delivery vehicle for PA. other: this result can be used as a potential drug delivery for PA

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Mg-Al/Biochar Composite with Stable Structure for Malachite Green Adsorption from Aqueous Solutions

Badri

Siregar

Palapa

et al. 2021

Bull. Chem. React. Eng. Catal.

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Mg-Al-layered double hydroxide (LDH) was fabricated using a coprecipitation method at pH 10. Thereafter, Mg-Al-LDH was impregnated with biochar to manufacture a Mg-Al/Biochar composite. The composite was characterized using powder X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, N2 adsorption—desorption, thermogravimetry-differential thermal analysis (TG-DTA), and scanning electron microscopy (SEM) experiments, and was subsequently used for malachite green (MG) adsorption. MG adsorption experiments were performed in a batch system, and the effects of temperature and adsorption kinetic and isotherm parameters on the adsorption process were analyzed. The stability of Mg-Al/Biochar was evaluated using regeneration experiments over three cycles. The peaks at 11.47° (003), 22.86° (002), 34.69° (012), and 61.62° (116), in the XRD profile of Mg-Al/Biochar suggested that Mg-Al/Biochar was successfully fabricated. The surface area of Mg-Al/Biochar was up to five times larger than that of pristine Mg-Al-LDH. The adsorption of MG on Mg-Al/Biochar was dominated by interactions at the surface of the adsorbent and was classified as physical adsorption; moreover the maximum adsorption capacity ofMg-Al/Biochar was 70.922 mg/g. Furthermore, the MG removal of Mg-Al/Biochar during three successive adsorption cycles (i.e. 66.73%, 65.57%, and 65.77% for the first, second, and third adsorption cycle) did not change significantly, which indicated the stable structure of the adsorbent. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Efficient Removal of Methylene Blue by Adsorption Using Composite Based Ca/Al Layered Double Hydroxide-Biochar

Cited by 3 publications

References 31 publications

Effect of Preparation Methods on the Adsorption of Glyphosate by Calcined Ca–Al Hydrotalcite

Effect of Preparation Methods on the Adsorption of Glyphosate by Calcined Ca–Al Hydrotalcite

Unlocking the Microbial Potential of Intercalated Calcium-aluminum Layered Double Hydroxide-palmitic Acid

Mg-Al/Biochar Composite with Stable Structure for Malachite Green Adsorption from Aqueous Solutions

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