Extraction of High Crystalline Nanocellulose from Biorenewable Sources of Vietnamese Agricultural Wastes

An, Vu Nang; Nhân, Hà Thúc Chí; Tap, Tran Duy; Vân, Trần Thị Thanh; Pham, Viet Van; Hiếu, Lê Văn

doi:10.1007/s10924-020-01695-x

Cited by 80 publications

(41 citation statements)

References 46 publications

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“…The CNC samples were gained by centrifugation several times with DI water to reach a neutral pH value. These results were recently mentioned in our previous publication 7 …”

Section: Methodssupporting

confidence: 83%

Effect of imidazole‐doped nanocrystalline cellulose on the characterization of Nafion films of fuel cells

Phong

Nhi

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: In this study, we have fabricated a polymeric material (CNC/Im) consisting of cellulose nanocrystals (CNC) synthesized from Vietnamese rice husk biomass and imidazole (Im) dopant. Next, we propose a new approach to fabricate Nafion/CNC/imidazole (NCI) composite materials by mixing the CNC/imidazole hybrid into Nafion matrix using a very simple solution method, and then investigating the influence of CNC/Im on the properties of NCI membranes. RESULTS: Electrochemical impedance spectroscopy (EIS) analysis showed that the proton conductivity of the CNC/Im membrane depends on the linked molar ratio of Im to glucose units (denoted by the n index), and this value is higher than that of pure CNC by a factor of 6. Differential thermal analysis (DSC) showed that the value of the n index is around 1:17 with all the content ratios between CNC and Im. Next, we synthesized composite materials based on CNC/Im and Nafion 117 (NCI) and investigated the influence of CNC/Im on the properties of NCI membranes. The results demonstrated that proton conductivity of the NCI membranes changes according to the content of Nafion 117, and reaches the highest value of 6.19 × 10 −4 S m -1 with an Nafion 117/(CNC/Im) ratio of 2:1. It was observed that the CNC fiber bundles were surrounded by a polymer layer and no phase separation occurs in the scanning electron micrographs of NCI materials.CONCLUSIONS: These results indicate that the prepared NCI composites will be potential materials for eco-friendly fuel cell operating in low humidity conditions.

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“…The CNC samples were gained by centrifugation several times with DI water to reach a neutral pH value. These results were recently mentioned in our previous publication 7 …”

Section: Methodssupporting

confidence: 83%

Effect of imidazole‐doped nanocrystalline cellulose on the characterization of Nafion films of fuel cells

Phong

Nhi

et al. 2021

J of Chemical Tech & Biotech

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“…The most common approach for isolating nanocellulose from wood and other plant materials is acid hydrolysis [8,9]. Many researchers have investigated the isolation of nanocellulose from agricultural residues such as banana [10], sisal [11], tomato peels [12], calotropis procera fibers, onion waste, citrus waste, coconut [13], sesame husk [14], cotton, rice husk [15], oil palm [16], groundnut shells [17], macrophyte typha domingensis, potato peel, jute, spruce bark, agave angustifolia fibers, mango seed, sugarcane bagasse, corncob, bamboo, straws, soy hulls, olive stones, miscanthus giganteus, kapok and flax fibers. The potential and industrial application of the isolated nanocellulose is based on the structural and other properties of the nanocellulose.…”

Section: Introductionmentioning

confidence: 99%

Synthetic characterization and structural properties of nanocellulose from <i>moringa oleifera</i> seeds

Afolabi

Oluyamo

Fuwape

2021

J. Nig. Soc. Phys. Sci.

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In this research, nanocellulose is isolated from Moringa oleifera seed using acid hydrolysis and the structural properties were determined. X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy were used for the characterization of the isolated nanocellulose. The most noticeable peak is observed at and the value of the crystallinity index () from the XRD pattern is 63.1%. The calculated values of hydrogen bond intensity (HBI), lateral order index (LOI) and total crystalline index (TCI) are 0.93, 1.17and 0.94 respectively exhibited high degree of crystallinity and well arranged cellulose crystal structure. The isolated nanocellulose has an average length and diameter of 14.3 and 36.33 respectively. Furthermore, the FTIR peaks revealed the presence of C-H bending, C-O stretching and O-H stretching functional groups.

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“…Globally, about 5 billion tons of bio-wastes are generated annually from agricultural activities [42]. These wastes are the main source of a huge amount of cellulose every year, such as banana rachis, coconut husk fiber, grain straw, grape skin, garlic peel, soy hulls, and sugarcane bagasse [43]. These amounts of wastes could also be produced from both the agriculture and forestry industries, which are characterized as renewable, biodegradable, and low raw material cost.…”

Section: Producing Nanofibers From Agro-wastesmentioning

confidence: 99%

“…Cellulose nanofibers could be divided into cellulose nanofibrils and cellulose nanocrystals (diameter 5-30 and 3-10 nm, respectively), which are described as flexible, long, rope-like fibers with both crystalline and amorphous regions [44]. Several studies were published concerning the use of different agro-wastes in producing the nanofibers such as wastes of coconut husk and rice husk [43], wastes of pineapple leaves [45], sugarcane bagasse [46], Eucalyptus sawdust [47], wastes obtained from orange juice processing [48], quinoa wastes [49], discarded wooden bark of Kozo plant [50], pomegranate peel [51], and wastes of peach branches [41]. A survey of the most recent published articles regarding the use of agro-wastes in producing nanofibers is listed in Table 2.…”

Section: Producing Nanofibers From Agro-wastesmentioning

confidence: 99%

“…The synthetic material-based composites should be replaced by natural ones in several manufacturing industries, such as the field of textiles, which flax was used in ancient Egypt nearly 7000 years ago [3]. The cellulose is the most important component of the lignocellulosic natural fibers, which many plants could order their content of cellulose (%) as follows straw of rice (41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55)(56)(57), leaf of date palm (46), leaf of abaca (56)(57)(58)(59)(60)(61)(62)(63), bast of jute (61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71), leaf of banana , leaf of sisal (65), bast of hemp (68), bast of ramie (68.6-76.2), bast of flax (71), bast of kenaf (72), leaf of curaua (73.6), leaf of pineapple (81), bast of nettle (81)…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sustainable Applications of Nanofibers in Agriculture and Water Treatment: A Review

et al. 2022

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Natural fibers are an important source for producing polymers, which are highly applicable in their nanoform and could be used in very broad fields such as filtration for water/wastewater treatment, biomedicine, food packaging, harvesting, and storage of energy due to their high specific surface area. These natural nanofibers could be mainly produced through plants, animals, and minerals, as well as produced from agricultural wastes. For strengthening these natural fibers, they may reinforce with some substances such as nanomaterials. Natural or biofiber-reinforced bio-composites and nano–bio-composites are considered better than conventional composites. The sustainable application of nanofibers in agricultural sectors is a promising approach and may involve plant protection and its growth through encapsulating many bio-active molecules or agrochemicals (i.e., pesticides, phytohormones, and fertilizers) for smart delivery at the targeted sites. The food industry and processing also are very important applicable fields of nanofibers, particularly food packaging, which may include using nanofibers for active–intelligent food packaging, and food freshness indicators. The removal of pollutants from soil, water, and air is an urgent field for nanofibers due to their high efficiency. Many new approaches or applicable agro-fields for nanofibers are expected in the future, such as using nanofibers as the indicators for CO and NH3. The role of nanofibers in the global fighting against COVID-19 may represent a crucial solution, particularly in producing face masks.

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Extraction of High Crystalline Nanocellulose from Biorenewable Sources of Vietnamese Agricultural Wastes

Cited by 80 publications

References 46 publications

Effect of imidazole‐doped nanocrystalline cellulose on the characterization of Nafion films of fuel cells

Effect of imidazole‐doped nanocrystalline cellulose on the characterization of Nafion films of fuel cells

Synthetic characterization and structural properties of nanocellulose from <i>moringa oleifera</i> seeds

Sustainable Applications of Nanofibers in Agriculture and Water Treatment: A Review

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