Cellulose nanocrystals as promising adsorbents for the removal of cationic dyes

Batmaz, Rasim; Mohammed, Nishil; Zaman, Masuduz; Minhas, Gagan; Berry, Richard M.; Tam, Kam Chiu

doi:10.1007/s10570-014-0168-8

Cited by 306 publications

(165 citation statements)

References 51 publications

Supporting

Mentioning

158

Contrasting

Unclassified

Order By: Relevance

“…41 In addition to being used to produce self-standing films, surface-functionalized AWNFs could be suitable as flocculants in water purification 42 or the removal of toxic heavy metals 43 and organic dye molecules from water. 44 The presence of lignin can also provide some enhanced properties, such as π-π 45 or cation-π 46 interaction between lignin-containing nanocellulose and harmful chemicals (e.g., organic dyes), which could improve water purification efficiency. The use of non-bleached pulp instead of bleached cellulose fibers reduce the environmental burden of the production of wood-based nanomaterials.…”

Section: Please Do Not Adjust Marginsmentioning

confidence: 99%

Anionic wood nanofibers produced from unbleached mechanical pulp by highly efficient chemical modification

Sirviö

Visanko

2017

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Section: Please Do Not Adjust Marginsmentioning

confidence: 99%

Anionic wood nanofibers produced from unbleached mechanical pulp by highly efficient chemical modification

Sirviö

Visanko

2017

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…Various technologies have been employed for treatment of the dye-containing wastewater including flocculation, adsorption, filtration, oxidation, electrolysis, and chemical/photochemical/microbial degradation (Batmaz et al 2014;Liang et al 2014;Rafatullah et al 2010;Verma et al 2012;Wang et al 2013a;Yang et al 2013a). Among them, flocculation is one of the most effective pre-treatment processes in terms of low-cost, easy-operation and energy-saving (Aboulhassan et al 2006;dos Santos et al 2007;Riera-Torres et al 2010;Wang et al 2009b;Zahrim et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Efficient flocculation of an anionic dye from aqueous solutions using a cellulose-based flocculant

Cai

Yang

et al. 2015

Cellulose

View full text Add to dashboard Cite

In this current work, a series of cellulosebased flocculants, carboxymethyl cellulose-graftpoly[(2-methacryloyloxyethyl) trimethyl ammonium chloride] (CMC-g-PDMC) with different grafting ratios were successfully synthesized. CMC-g-PDMC bears high flocculation performance in removal of an anionic dye, Acid Green 25 (AG25), at various pH conditions, which is due to improvement of both positive charge and molecular weight after modification. Moreover, the dye removal efficiency is mostly improved with the increase of grafting ratio. Among the four tested salt additives, CMC-g-PDMC exhibits good salt resistance except for sodium chloride in the measured salt concentration range. Furthermore, the image analysis in combination with fractal theory has been employed to investigate the flocs properties including floc size and fractal structure for studying the flocculation mechanism in detail. It is confirmed that charge neutralization and bridging flocculation effects both play important roles in removal of AG25 from water.

show abstract

“…The parameters of the adsorption isotherm model are given in Table 2. The values of k and n decreased with increasing temperature, which indicated that better adsorption occurred at lower temperatures (Batmaz et al 2014). The high correlation coefficient (R > 0.98) of the linearized Freundlich equation suggested that the adsorption of creatinine onto cellulose dinitrobenzoate was multilayer adsorption and that the adsorption surface was heterogeneous (Yan et al 2014).…”

Section: Isotherms Studymentioning

confidence: 97%

“…3. This is attributed to the unsaturation of active sites on the adsorbent due to the increase in the ratio of adsorption sites to the creatinine molecules (Batmaz et al 2014). In low adsorbent concentrations of the dialysate, the surface area and the availability of sorption sites were relatively high, and therefore, the creatinine was easily adsorbed.…”

Section: Influence Of Adsorbent Dosagementioning

confidence: 99%

Adsorption Kinetics and Thermodynamics of Cellulose Dinitrobenzoate Prepared in Ionic Liquid for the Removal Of Creatinine

Dai¹,

Ren²,

Kong³

et al. 2015

BioResources

View full text Add to dashboard Cite

Creatinine is one of the major toxins in patients suffering from chronic renal failure. In this paper, cellulose dinitrobenzoate, with a degree of substitution (DS) of 0.15, was used as an oral adsorbent for creatinine adsorption. Cellulose dinitrobenzoate was prepared by modification of cellulose with 3,5-dinitrobenzoyl chloride in 1-butyl-3-methylimidazolium chloride (BMIMCl) ionic liquid as a homogenous medium. The effects of contact time, pH, adsorption temperature, and initial concentration of creatinine on the adsorption per unit mass of cellulose dinitrobenzoate were studied, comparatively. Results showed that the maximum adsorption per unit mass for creatinine was 3.88 mg/g. Furthermore, the adsorption process was spontaneous and exothermic. It was determined that the experimental results were well fitted to the pseudo-second-order rate equation and the Freundlich adsorption isotherm. Compared with traditional oral adsorbents, this cellulose-based adsorbent was biocompatible and could remove creatinine from dialysate effectively.

show abstract

Cellulose nanocrystals as promising adsorbents for the removal of cationic dyes

Cited by 306 publications

References 51 publications

Anionic wood nanofibers produced from unbleached mechanical pulp by highly efficient chemical modification

Anionic wood nanofibers produced from unbleached mechanical pulp by highly efficient chemical modification

Efficient flocculation of an anionic dye from aqueous solutions using a cellulose-based flocculant

Adsorption Kinetics and Thermodynamics of Cellulose Dinitrobenzoate Prepared in Ionic Liquid for the Removal Of Creatinine

Contact Info

Product

Resources

About