Preparation and sorption activity of chitosan/cellulose blend beads

Twu, Yawo-Kuo; Huang, Hsin-I; Chang, Szu-Ying; Wang, San-Lang

doi:10.1016/j.carbpol.2003.03.001

Cited by 116 publications

(47 citation statements)

References 24 publications

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“…A study being carried out by Twu et al (2003) and prepared the chitosan microspheres by spray-drying process with a spherical geometry and a smooth surface morphology. Deodorizing properties of these beads against trimethylamine (TMA) was investigated.…”

Section: Introductionmentioning

confidence: 99%

Development of biochar and chitosan blend for heavy metals uptake from synthetic and industrial wastewater

2017

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Heavy metals are usually released into water bodies from industrial/domestic effluents such as metal plating industries, mining and tanneries. Adsorption is a fundamental process in the physiochemical treatment of wastewaters because of its low cost. Great efforts have been made to use the economically efficient and unconventional adsorbents to adsorb heavy metals from aqueous solutions, such as plant wastes and agricultural waste. Biochar mixed with chitosan after crosslinking can be casted into membranes, beads and solutions which can be effectively utilized as an adsorbent for metal ion uptake. Keeping these facts into consideration, the present study was undertaken with the objective to determine the effect of various proportions of biochar-modified chitosan membranes on the sorption characteristics of different heavy metals like Cu, Pb, As and Cd along with comparison of sorption characteristics between industrial waste water samples containing multi-metals and standard synthetic stock solution containing a particular metal. It is apparent from the results that the bioadsorbent prepared from biochar and chitosan are low-cost efficacious resource due to its easy availability. It is also eco-friendly material for making adsorbent for abstraction of heavy metals from aqueous solution. This adsorbent can be best utilized for adsorption of heavy metals.

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Section: Introductionmentioning

confidence: 99%

Development of biochar and chitosan blend for heavy metals uptake from synthetic and industrial wastewater

2017

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“…7; 2015 (Asada et al, 2004). Twu et al (Twu et al, 2003) explained that polysaccharide sphere produced by spray-drying shows sphere geometry and more fine surface structure. As shown in Figure 4, the size of sphere particles is less than 3 µm.…”

Section: Discussionmentioning

confidence: 99%

Subcritical Water Extraction of Polysaccharides Using a Semi-Batch Extractor

Kodama¹,

Shoda²,

Wahyudiono³

et al. 2015

MAS

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Subcritical water is an environmentally friendly method with a wide range of applications, such as extraction, hydrolysis, and wet oxidation of organic compounds. Here, water at subcritical conditions was applied to extract polysaccharides from Ganoderma lucidum (G. lucidum) and barley grains at 120 -180 o C and 4.0 MPa using a semi-batch system. The liquid products were directly micronized and contacted with hot air to form microsphere particles. During extraction process, cell wall disruptions of G. lucidum and barley grains took place, allowing the removal of the polysaccharides isolating other constituents in G. lucidum and barley grains via autohydrolysis. Scanning electron microscope (SEM) images described that the particle products produced had sphere and wrinkled morphology of particles with diameters varying from 1 to 10 µm. The experimental result revealed that the particles formed from G. lucidum and barley grains extract contained 40-45% and 30-35% weight β-glucan, respectively.

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“…This can be explained by the fact that the particles may have good solubility in water, which resulted in the typical spherical shape and solid particle morphology (Weiler et al 2010). The presence of polysaccharides in the water led to the spherical particle formation (Twu et al 2003;Asada et al 2004;Muzzarelli et al 2004;Guerrero et al 2010). Asada et al (2004) reported that spray-drying pharmaceutical preparation produced spherical particles with the existence of chitosan; however, minute acicula particles and whiskers on the particle surfaces still occurred.…”

Section: Particle Characterizationmentioning

confidence: 99%

“…Asada et al (2004) reported that spray-drying pharmaceutical preparation produced spherical particles with the existence of chitosan; however, minute acicula particles and whiskers on the particle surfaces still occurred. Twu et al (2003) suggested that polysaccharide microspheres prepared from spray-drying exhibit a spherical geometry and a smoother surface morphology. These microspheres are found to have a particle size smaller than 3 m.…”

Section: Particle Characterizationmentioning

confidence: 99%

Hydrothermal Extraction and Micronization of Polysaccharides from Ganoderma lucidum in a One-Step Process

Matsunaga¹,

Diono²,

Machmudah³

et al. 2012

BioResources

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Ganoderma lucidum (G. lucidum) is a mushroom-forming white rot fungus that contains a wide variety of bioactive components (glucans). In this study, G. lucidum was utilized for the extraction of polysaccharides by hot compressed water at a temperature of 160 o C and a pressure of 4.0 MPa using a semi-batch system. Under these conditions, thermal softening of G. lucidum occurred, allowing the removal of the polysaccharides protecting other constituents in G. lucidum via hydrolysis. Next, the extract was directly atomized by spray drying to remove the water. Scanning electron microscope (SEM) images showed that the particles formed were spherical and dimpled or shriveled with diameters varying from 1 to 6 m. Based on these results it is proposed that this process is applicable to isolate polysaccharides from other types of biomass and may result in advances in extraction technology to obtain plant biomass components.

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Preparation and sorption activity of chitosan/cellulose blend beads

Cited by 116 publications

References 24 publications

Development of biochar and chitosan blend for heavy metals uptake from synthetic and industrial wastewater

Development of biochar and chitosan blend for heavy metals uptake from synthetic and industrial wastewater

Subcritical Water Extraction of Polysaccharides Using a Semi-Batch Extractor

Hydrothermal Extraction and Micronization of Polysaccharides from Ganoderma lucidum in a One-Step Process

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