Preparation of nanocrystalline cellulose-montmorillonite composite via thermal radiation for liquid-phase adsorption

Santoso, Shella Permatasari; Laysandra, Livy; Putro, Jindrayani Nyoo; Lie, Jenni; Soetaredjo, Felycia Edi; Ismadji, Suryadi; Ayucitra, Aning; Ju, Yi

doi:10.1016/j.molliq.2017.02.091

Cited by 23 publications

(21 citation statements)

References 41 publications

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“…At higher C 0 , the abundance of adsorbate molecules provides a driving force to suppress the adsorbate-adsorbent mass transfer resistance. Thus, more adsorbate molecules can be adsorbed 60 – 62 .…”

Section: Resultsmentioning

confidence: 99%

One-step synthesis of nitrogen-grafted copper-gallic acid for enhanced methylene blue removal

Santoso

Bundjaja

Angkawijaya

et al. 2021

Sci Rep

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Nitrogen-grafting through the addition of glycine (Gly) was performed on a metal- phenolic network (MPN) of copper (Cu2+) and gallic acid (GA) to increase its adsorption capacity. Herein, we reported a one-step synthesis method of MPN, which was developed according to the metal–ligand complexation principle. The nitrogen grafted CuGA (Ng-CuGA) MPN was obtained by reacting Cu2+, GA, and Gly in an aqueous solution at a molar ratio of 1:1:1 and a pH of 8. Several physicochemical measurements, such as Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), N2 sorption, X-ray diffraction (XRD), and thermal gravimetry analysis (TGA), were done on Ng-CuGA to elucidate its characteristics. The analysis revealed that the Ng-CuGA has non-uniform spherical shaped morphology with a pore volume of 0.56 cc/g, a pore size of 23.25 nm, and thermal stability up to 205 °C. The applicational potential of the Ng-CuGA was determined based on its adsorption capacity against methylene blue (MB). The Ng-CuGA was able to adsorb 190.81 mg MB per g adsorbent at a pH of 6 and temperature of 30 °C, which is 1.53 times higher than the non-grafted CuGA. Detailed assessment of Ng-CuGA adsorption properties revealed their pH- and temperature-dependent nature. The adsorption capacity and affinity were found to decrease at a higher temperature, demonstrating the exothermic adsorption behavior.

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Section: Resultsmentioning

confidence: 99%

One-step synthesis of nitrogen-grafted copper-gallic acid for enhanced methylene blue removal

Santoso

Bundjaja

Angkawijaya

et al. 2021

Sci Rep

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“…It was observed that the FTIR spectra of the NC sample are comparable with the different reported spectra. 11,[14][15] Specifically, the characteristic band corresponding to the -OH group stretching is observed at a wavenumber of 3300 cm -1 . The bands observed at 2898, 1645, 1400, and 1052 conform to the C-H stretching, -OH bending/C = O stretching, C-H bending, and C-O/C-C stretching, respectively.…”

Section: Characterization Of Ncmentioning

confidence: 99%

“…The first equivalence point for all systems containing NC and Co 2+ is found at a similar pH to that of the system comprising NC only, suggesting that no complexation occurs at this point. 14,[17][18] This is since both NC and Co 2+ are positively charged; thus repulsion interaction occurs instead of complexation. The results and analysis of the titration profile of NC and Co 2+ system can be well-correlated to the high removal of Co 2+ at a pH of 6.…”

Section: Effect Of Ph In the Adsorption Of Co 2+ On Ncmentioning

confidence: 99%

Utilization of Nanocrystalline Cellulose for Adsorption of Divalent Cobalt Ions in the Aqueous Phase

Santoso

Angkawijaya

Kurniawan

et al. 2020

Fine Chemical Engineering

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Nanocrystalline cellulose (NC) is a cellulose derivative product that has attracted a lot of attention because of its versatile applications, one of which is in adsorption. In this study, NC was prepared through H2SO4-hydrolysis of filter paper. Several physical characterizations were employed to confirm the formation of the NC nanoparticles, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) analysis, and Fourier transform infrared spectroscopy (FTIR). The nano-rod-shaped NC particles, with an average particle length of 255 nm, were observed from the electron micrographs. The resemblance characteristic of NC with cellulose was demonstrated from the occurrence of XRD peaks at (110) and (200) lattice plane. The FTIR bands’ spectra of the NC are similar to that of the reported literature. The NC was utilized as the adsorbent for the removal of cobalt ions in the synthetic solution. The effect of pH on the removal of cobalt ions by NC was evaluated by employing potentiometric titration. It was revealed that the complexation between the two compounds occurs greater at a pH of 6.6. The adsorption isotherm of cobalt ions was investigated at three different temperatures of 30, 45, and 60°C. The adsorption isotherm was found to be well fitted with the Langmuir model, with the maximum adsorption capacity of 47.53 mg g-1 at 30°C. The adsorption capacity was found to decline as the temperature increased, where the maximum adsorption capacity was 44.62 ± 2.32 and 40.56 ± 2.03 mg g-1 at 45 and 60°C, respectively. The adsorption of cobalt ions on NC shows the exothermic adsorption behavior.

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“…20 CNM-based composite and hybrid coatings, films and aerogels containing various inorganic components can have favourable mechanical properties. [21][22][23][24][25] Furthermore, materials consisting of CNM with nanoclays, especially montmorillonite (MNT), have displayed combinations of high strength with heat tolerance, 26 fire retardancy, 27 dye adsorption, 28 and low oxygen 29 and watervapour 30 permeability. While self-assembly has been studied in single-component CNC and MNT dispersions, 11,[31][32][33] including, in the case of CNC, in confined geometries such as sessile, 34 emulsion 35 and levitating 36 droplets, studies of multicomponent CNC:MNT systems are sparse.…”

Section: Introductionmentioning

confidence: 99%

“…While self-assembly has been studied in single-component CNC and MNT dispersions, 11,[31][32][33] including, in the case of CNC, in confined geometries such as sessile, 34 emulsion 35 and levitating 36 droplets, studies of multicomponent CNC:MNT systems are sparse. 28,37 Exploring and probing how CNC and inorganic nanoparticles such as clays assemble in aqueous dispersions is important for the development of processing routes and new classes of sustainable materials.…”

Section: Introductionmentioning

confidence: 99%

Assembly of cellulose nanocrystals and clay nanoplatelets studied by time-resolved X-ray scattering

Munier

Hadi

et al. 2021

Soft Matter

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Preparation of nanocrystalline cellulose-montmorillonite composite via thermal radiation for liquid-phase adsorption

Cited by 23 publications

References 41 publications

One-step synthesis of nitrogen-grafted copper-gallic acid for enhanced methylene blue removal

One-step synthesis of nitrogen-grafted copper-gallic acid for enhanced methylene blue removal

Utilization of Nanocrystalline Cellulose for Adsorption of Divalent Cobalt Ions in the Aqueous Phase

Assembly of cellulose nanocrystals and clay nanoplatelets studied by time-resolved X-ray scattering

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