Reinforcement of chitosan film using cellulose isolated from grass (imperata cylindrica)

Azzahra, Natasya; Rahmi, R.; Lubis, Surya

doi:10.1088/1742-6596/1402/5/055039

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…The pre-treatment cuts the production line, as it does not require the oil extraction. Moreover, cellulosic polyol feed was acquired without involving the hydrolysis, pulping, and bleaching steps [ 21 , 22 ]. In addition, the ball-milling pretreatment can be considered eco-friendly, as it is free from chemical processing.…”

Section: Introductionmentioning

confidence: 99%

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Marlina

Iqhrammullah

Saleha

et al. 2020

Heliyon

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This research offers a novel approach of free chemical preparation to obtain algae-based biopolyol through a ball milling method. The algae-based polyurethane (AlgPU) film was obtained from a casting solution made of ball-milled algal polyol particle and methylene diphenyl diisocyanate (MDI). The characteristics of the material had been investigated using Fourier Transform Infrared, Scanning Electron Microscopy – Electron Dispersive Spectroscopy, Differential Scanning Calorimetry, and Tensile Strength Analysis. The surface area was determined by Brunauer–Emmett–Teller (BET) isotherm, meanwhile the total pore volume was by Barrett-Joyner-Halenda (BJH) isotherm, based on the adsorption-desorption of N 2 . The addition of activated carbon contributed in the increase of functional group and surface area, which were important for the NH 3 –N removal. As a result, the adsorption capacity increased greatly after the addition of activated carbon (from 187.84 to 393.43 μg/g). The results also suggested AlgPU as a good matrix for immobilizing activated carbon filler. The adsorption shows a better fit with Langmuir isotherm model, with R 2 = 0.97487 and root-mean-square error (RMSE) = 33.91952, compared to Freundlich isotherm model (R 2 = 0.96477 and RMSE = 44.05388). This means the NH 3 –N adsorption followed the assumption of homogenous and monolayer adsorption, in which the maximum adsorption was found to be 797.95 μg/g. This research suggests the potential of newly developed material for NH 3 –N removal.

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Section: Introductionmentioning

confidence: 99%

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Marlina

Iqhrammullah

Saleha

et al. 2020

Heliyon

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“…Grass-derived cellulose (GC) had been priorly obtained and its characteristics had been reported [29]. Briefly, powdered grass was hydrolyzed in H2SO4 40% and bleached in H2O2 30% (at 45°C; 90 min), followed by washing and oven-drying at 40°C.…”

Section: Materials and Cellulose Extractionmentioning

confidence: 99%

Synergetic photocatalytic and adsorptive removals of metanil yellow using TiO2/grass-derived cellulose/chitosan (TiO2/GC/CH) film composite

Rahmi

Lubis

Azzahra

et al. 2021

IJE

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Chitosan (CH) and cellulose are the most abundant biopolymers which could be utilized for hazardous dye removal. By incorporating TiO2 onto cellulose/CH matrix, our research aimed to achieve high metanil yellow removal by means of synergetic adsorption/photodegradation mechanism. The cellulose particles were extracted from wild grass (Imperata cylindrica L.) to obtain grass-derived cellulose (GC). Simple blending method was used to prepare TiO2/GC/CH, in which the composition was determined by simple additive weighting method (SAW). TiO2/GC/CH was characterized by means of tensile strength test (also used for SAW), Fourier Transform-Infrared (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). Metanil yellow removal using TiO2/GC/CH works very well at acidic pH range. The removal follows the pseudo-second-order kinetic (R 2 = 0.997) and Langmuir isotherm (R 2 = 0.998) modellings. High qm obtained from the metanil yellow removal under UV irradiation (qm = 171.527) proves the synergism between adsorption and photodegradation. The developed TiO2/GC/CH could be potentially used in the wastewater treatment for azo dye removal.

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“…In multiple reports, chitosan has shown its ability to remove heavy metals [17,19], biodiesel impurities [3], dyes [20], and pesticides [21]. Furthermore, chitosan can easily dissolve in acetic acid, allowing a simple and eco-friendly process for its membrane matrix preparation [22].…”

Section: Introductionmentioning

confidence: 99%

Development of Chitosan/Rice Husk-Based Silica Composite Membranes for Biodiesel Purification

et al. 2022

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Inorganic–organic composite membranes (IOCMs) are an alternative separation method developed for their straightforward process, economic benefits, and ease of scaling up. The IOCMs in this study were prepared from a biopolymer chitosan matrix and rice husk-based silica filler to remove impurities from crude biodiesel. The IOCMs were prepared through phase inversions, in which the priorly prepared silica particles were dispersed in the dope solution of chitosan. The maximum loading of the silica particles was 60%, capable of reducing the soap level, free glycerol level, and acid number from 547.9 to 12.2 mg/L, 54 to 0.041%, and 2.02 to 1.12 mgKOH/g. These reduced impurity values have satisfied the standardized quality. The chemical composition and morphology of the IOCM was characterized using Fourier-transform infrared spectroscopy and scanning electron microscope–energy dispersive X-Ray spectroscopy. The IOCM water absorption-based porosity and swelling degree were studied as well. Further investigation using isothermal modeling revealed the adsorption dependency against the Sips model equation (R2 = 0.99 and root-mean-square errors = 1.77 × 10−8). Even though regeneration is still a challenging factor in this study, the IOCM prepared from chitosan and rice husk-derived silica particles could be used in crude biodiesel purification.

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Reinforcement of chitosan film using cellulose isolated from grass (imperata cylindrica)

Cited by 3 publications

References 24 publications

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Synergetic photocatalytic and adsorptive removals of metanil yellow using TiO2/grass-derived cellulose/chitosan (TiO2/GC/CH) film composite

Development of Chitosan/Rice Husk-Based Silica Composite Membranes for Biodiesel Purification

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