Synthesis of polyamidoxime chelating ligand from polymer‐grafted corn‐cob cellulose for metal extraction

Rahman, Lutfor; Rohani, Nik; Mustapa, Nik; Yusoff, Mashitah M.

doi:10.1002/app.40833

Cited by 39 publications

(39 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…17,19,37,38 In this study, cotton cellulose was graed with EMCA via a free-radical initiation method, which involved CAN as an initiator (Fig. 1b).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

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

et al. 2017

View full text Add to dashboard Cite

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.

show abstract

“…17,19,37,38 In this study, cotton cellulose was graed with EMCA via a free-radical initiation method, which involved CAN as an initiator (Fig. 1b).…”

Section: Resultsmentioning

confidence: 99%

“…17,[21][22][23] Furthermore, amidoximated cellulose can act as a nanoreactor to produce nanocomposites with tailored characteristics. 24,25 Also, amidoxime-reduced metal nanocomposites possess potent antimicrobial functionality.…”

Section: Polymeric Ligands Bearing Amidoxime (R-c(nh 2 )]N-oh) or Hydmentioning

confidence: 99%

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

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The trend in the curve showed that the adsorption of the metal ions increased with increasing pH. Thus, the synthesized Khaya cellulosebased poly(amidoxime) ligand functioned as an adsorbent, forming complexes with the metal ions that prompted their subsequent removal from wastewater (Lutfor et al 2001;Yong et al 2012;Awual et al 2013;Lutfor et al 2014).…”

Section: Effect Of Ph On the Removal Of Various Transition Metal Ionsmentioning

confidence: 99%

“…The termination reaction of the growing polymer chain of the cellulose-monomer results in the combination of grafting (Fig. 4) (Lutfor et al 2014). …”

Section: Graft Copolymerizationmentioning

confidence: 99%

See 1 more Smart Citation

Poly(amidoxime) from Polymer-Grafted Khaya Cellulose: An Excellent Medium for the Removal of Transition Metal Cations from Aqueous Solution

Rahman¹,

Sarkar²,

Yusoff³

et al. 2016

BioResources

Self Cite

View full text Add to dashboard Cite

A free radical chain initiation reaction was exploited to prepare poly(acrylonitrile)-grafted Khaya cellulose. The synthesis of the poly(amidoxime) ligand was also performed using oximation reactions. Transition metal cations formed some complexes with the polymeric ligand. The pH of the solution played an important role in the optical detection of Cu 2+ ions. The highest absorbance (approximately 94%) of the [Cu-ligand] n+ complex was at pH 6. The sorption quantity increased with increasing Cu 2+ ion concentration, which was reflected by a broad peak at 600 nm that was attributed to the charge transfer (- transition) process. The equilibrium sorption capacity of 282 mg/g, with faster adsorption rates (t1/2 = 8 min), suggested that copper possessed excellent adsorption capacity compared with the other cations (Fe 3+ , Co 3+ , Cr 3+ , Ni 2+ , and Zn 2+ ). The sorption data for all of the cations followed the Freundlich isotherm model, with a high coefficient of determination, reflecting a heterogeneous sorption process by the cellulose-based, poly(amidoxime) adsorbent. The feasibility for recycling of adsorbent was evaluated by the sorption/ desorption study, and the results suggest that a new type adsorbent can be reused in seven cycles without any significant loss in its original sensing and removal performances.

show abstract

Cellulose Graft Poly(acrylic acid) and Polyacrylamide: Grafting Efficiency and Heavy Metal Adsorption Performance

Wichaita

Samart

Yoosuk

et al. 2015

Macromolecular Symposia

View full text Add to dashboard Cite

Corn cob cellulose was prepared by alkali-treatment method and grafted with acrylic acid and acrylamide using ammonium persulphate as an initiator and N,N 0 -methylenebisacrylamide as a cross-linker. The influences of monomer to cellulose ratio, initiator content, cross-linker content and reaction temperature on grafting efficiency were studied. The maximum grafting efficiency was achieved at 89% at the appropriate condition. Properties of grafted cellulose were characterized by SEM, FTIR, CHNO analysis and TGA. Poly(acrylic acid) and polyacrylamide modified cellulose were used as adsorbents for Cu(II) and Ni(II) removal from aqueous solution. The adsorption capacity was in the range of 8-12 mg g À1 with the removal performance up to 52-99%.

show abstract

Synthesis of polyamidoxime chelating ligand from polymer‐grafted corn‐cob cellulose for metal extraction

Cited by 39 publications

References 27 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

Poly(amidoxime) from Polymer-Grafted Khaya Cellulose: An Excellent Medium for the Removal of Transition Metal Cations from Aqueous Solution

Cellulose Graft Poly(acrylic acid) and Polyacrylamide: Grafting Efficiency and Heavy Metal Adsorption Performance

Contact Info

Product

Resources

About