التفاصيل البيبلوغرافية
| العنوان: |
ULTRASONIC-ASSISTED SYNTHESIS OF REACTIVE CARBOXYMETHYL CELULOSE STABILIZED NANO ZERO-VALENT IRON AND ITS APPLICATION FOR REMOVAL OF Cr6+ AND Cu2+ IONS. |
| المؤلفون: |
AYOB, AFIZAH, SANTIAGOO, RAGUNATHAN, AMNEERA, WAN AMIZA, ISMAIL, NORLI, ABDULLAH, AHMAD ZUHAIRI |
| المصدر: |
Environment Protection Engineering; 2016, Vol. 42 Issue 2, p55-79, 25p |
| مصطلحات موضوعية: |
CARBOXYMETHYLCELLULASE, CHEMICAL reduction, SODIUM borohydride, COMPOSITE particles (Composite materials), X-ray diffraction, ULTRASONIC dispersion |
| مستخلص: |
Carboxymethyl cellulose (CMC) was used in the chemical reduction using sodium borohydride to yield dispersive nano zero-valent iron (nZVI) particles as reactive and stable adsorbents. CMC- -stabilized nZVI particles were characterized via UV-visible light spectroscopy, X-ray diffraction, dynamic light scattering, transmission electron microscopy, and specific surface area assisted using a probe ultrasonication dispersing tool at 50% amplitude power. High catalytic reactivity obtained in pseudo-first order reaction for Cr6+ (rate constant K1 = 0.0311 min-1) and pseudo-second order for Cu2+ (rate constant K2 = 0.0946 g·mg-1·min-1) indicated that colloidal stability of nZVI particles can be achieved with a stabilizer for the removal of toxic contaminants. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
