Graphene oxide caged in cellulose microbeads for removal of malachite green dye from aqueous solution

Zhang, Xiaomei; Yu, Hongwen; Yang, Hongjun; Wan, Yuchun; Hu, Hong; Zhai, Zhuang; Qin, Jieming

doi:10.1016/j.jcis.2014.09.048

Cited by 125 publications

(37 citation statements)

References 33 publications

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“…1a). [14][15][16] In a repeating unit of a cellulose molecule, there are methylol groups (-CH 2 OH) at C-6 and hydroxyl groups (-OH) at C-2 and C-3, and many attempts have been made to develop cellulose as a pollutant scavenger through functionalizing cellulose at C-2, 3 or 6.…”

Section: -10mentioning

confidence: 99%

Synthesis of a poly(amidoxime-hydroxamic acid) cellulose derivative and its application in heavy metal ion removal

et al. 2017

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Amidoxime and hydroxamic acid functional groups have comparable chelating ability with synthetic resins, but the synthesis of cellulose fibers bearing amidoxime and hydroxamic acid functional groups using simple and effective strategies have yet to be developed. In this study, a poly(amidoxime-hydroxamic acid) cellulose derivative (pAHA-cellulose) was prepared via free radical polymerization followed by an oximation reaction. A series of microscopic analyses and spectral tests proved that the pAHA-cellulose was covered with uniform amidoxime and hydroxamic acid functional groups. The use of pAHAcellulose towards heavy metal ion removal was investigated and an uptake equilibrium was achieved within 60 min for Cu 2+ and Zn 2+ , and 120 min for Pb 2+ and Cr 3+, through a chelation mechanism. The adsorption behavior followed the pseudo-second-order kinetic model and Langmuir isotherm with and Zn 2+ , respectively. Regeneration of pAHA-cellulose did not significantly influence the adsorption towards metal ions for up to five sequential cycles. Considering the simple and efficient grafting process, excellent adsorbability and prominent renewability, pAHA-cellulose is believed to be a new and feasible candidate for heavy metal ion removal from aqueous solution.

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Section: -10mentioning

confidence: 99%

Synthesis of a poly(amidoxime-hydroxamic acid) cellulose derivative and its application in heavy metal ion removal

et al. 2017

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“…Literature reports indicate that bonds can be formed between the negatively charged dye and GO 43 , which may affect dye retention in the membrane, as confi rmed by the results obtained in our experiment. Zhang et al 39 used GO caged in cellulose microbeads to remove another dye -malachite green -from aqueous solutions. Upon contact with aqueous solution of Fe 3+ iron ions with the membranes, its amount adsorbed on pure cellulose membrane as compared to MB is higher and amounts to ~76%.…”

Section: Transport Propertiesmentioning

confidence: 99%

Preparation and properties of cellulose membranes with graphene oxide addition

Fryczkowska

Wiechniak

2017

Polish Journal of Chemical Technology

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The paper presents results of research on the preparation of cellulose membranes with graphite oxide addition (GO/CEL). Initially, a cellulose (CEL) solution in 1-ethyl-3-methylimidazole acetate (EMIMAc) was obtained, to which graphene oxide (GO) dispersed in N,N-dimethylformamide (DMF) was added. From this solution, composite membranes were formed using phase inversion method. It was observed that the GO addition infl uences the physico-chemical properties of GO/CEL composite membranes, resulting in an increase in their mass per unit area, thickness and density, and a decrease in sorption properties. In addition, the study of transport properties has shown that GO/CEL membranes do not absorb BSA particles on their surface, which prevents the unfavorable phenomenon of fouling. An important feature of the obtained membranes is the specifi c permeate fl ux which reaches high values (~124 L/m 2 ×h) at 3.8% of the GO addition to the cellulose matrix.

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“…The sizes of CB and SCB-34 were analyzed by the SEM (SU8010 FE-SEM, Hitachi, Japan) images of the samples, 18 which were further conrmed by the image analysis soware (Image J) based on the digital photographs. 19 The porosities of CB and SCB-34 were calculated by the following equations (eqn (1) and 2…”

Section: Characterization Of the Hybrid Beadsmentioning

confidence: 99%

Development of organic–inorganic hybrid beads from sepiolite and cellulose for effective adsorption of malachite green

Jiang

Wang

et al. 2017

RSC Adv.

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Graphene oxide caged in cellulose microbeads for removal of malachite green dye from aqueous solution

Cited by 125 publications

References 33 publications

Synthesis of a poly(amidoxime-hydroxamic acid) cellulose derivative and its application in heavy metal ion removal

Synthesis of a poly(amidoxime-hydroxamic acid) cellulose derivative and its application in heavy metal ion removal

Preparation and properties of cellulose membranes with graphene oxide addition

Development of organic–inorganic hybrid beads from sepiolite and cellulose for effective adsorption of malachite green

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