WITHDRAWN: Penicillin impregnation on oxygen plasma surface-functionalized chitosan/Antherarea assama silk fibroin: Studies of antibacterial activity and antithrombogenic property

Gogoi, Dolly; Choudhury, Arup; Chutia, Joyanti

doi:10.1016/j.apsusc.2015.02.125

Cited by 1 publication

(1 citation statement)

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“…4c) can be curve-tted into three binding energy peaks at 398.7 eV, 399.7 eV and 401.1 eV, which attribute to the C-NH 2 , C-N and protonated nitrogen atoms in the amine groups. [30][31][32] These results also agree with the EDX analysis and FTIR analysis.…”

Section: Resultssupporting

confidence: 83%

Synthesis and adsorption application of amine shield-introduced-released porous chitosan hydrogel beads for removal of acid orange 7 from aqueous solutions

Liu

Wang

et al. 2015

RSC Adv.

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12An effective and low-cost adsorbent named amine shield-introduced-released 13 porous chitosan hydrogel beads (APCB) was synthesized and characterized by SEM, 14 EDX, FTIR, XPS and Zeta potential. SEM images showed the porous structure of 15 APCB and EDX analysis proved the adsorption behavior of Acid Orange 7 (AO7) 16 onto APCB. FTIR analysis indicated that the amine-shield-release process and 1 amine-introduce process both increased the amount of amine groups. XPS analysis 2 confirmed the chemical compositions of the APCB. Zeta potential analysis indicated 3 that the pH pzc of APCB was 5.4. The significance of this work was illustrated by 4 excellent adsorption capacity towards AO7. The maximum adsorption was observed at 5 pH 2.0 with the adsorption capacity of 2803.77 mg g -1 . APCB showed low adsorption 6 capacity in high pH values and exhibited better AO7 adsorption capacity in low ionic 7 strength solutions. Experimental data were well fitted by pseudo-second-order kinetic 8 model and Langmuir isotherm model. Thermodynamic analysis indicated that the 9 adsorption process was spontaneous and endothermic. 10 Keywords: amine-shield chitosan; amine-introduce; acid orange 7 removal; 11 adsorption 12 aquatic diversity by reducing the penetration of light 2 . Therefore, several 17 technologies, like irradiation 3 , reverse osmosis 4 , ozonation 5 and adsorption 2 , have 18 been used to study the removal of hazardous dyes. Among these methods, adsorption 19 is one of the most effective methods for dye removal because of simplicity in design, 20

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Section: Resultssupporting

confidence: 83%