Polyurethane-Keratin Membranes : Structural Changes by Isocyanate and pH, and the Repercussion on Cr(VI) Removal
المؤلفون المشاركون
Rivera-Armenta, José L.
Velasco-Santos, Carlos
Flores-Estrada, Jaime
Olea-Mejía, Oscar F.
Manrique-Juárez, María D.
Martínez-Hernández, Ana Laura
المصدر
International Journal of Polymer Science
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-09-22
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Keratin has the capacity to interact with metal ions.
In order to take advantage of this potential, a novel membrane with polyurethane and keratin has been developed and studied for removal of Cr(VI) from aqueous solution.
Physicochemical and morphological properties of these hybrid membranes were studied, varying synthesis parameters such as the type of isocyanate and pH in keratin solution.
The effects of using diphenyl-methane-diisocyanate or toluene-diisocyanate and modifying the pH in keratin solutions were evaluated by scanning electron microscopy, Fourier transform infrared spectroscopy, and dynamical mechanical analysis.
Results show that pH has a strong influence on morphology and on Cr(VI) removal efficiency.
When pH in keratin solution is low (2.5), the protein separates from water, and a more closed cell in the membrane is obtained affecting its mechanical properties.
The removal efficiency of Cr(VI) was also assessed at different pH values of chromium solutions.
These results show that when pH of the Cr solution is acidic (at 1.5), the Cr(VI) removal percentages increase significantly, reaching up to a 58%.
Thus this paper demonstrates the successful combination of synthetic and natural polymers depending on the process parameters to be applied in the critical purpose of remediation of Cr(VI) contamination.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Manrique-Juárez, María D.& Martínez-Hernández, Ana Laura& Olea-Mejía, Oscar F.& Flores-Estrada, Jaime& Rivera-Armenta, José L.& Velasco-Santos, Carlos. 2013. Polyurethane-Keratin Membranes : Structural Changes by Isocyanate and pH, and the Repercussion on Cr(VI) Removal. International Journal of Polymer Science،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-505932
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Manrique-Juárez, María D.…[et al.]. Polyurethane-Keratin Membranes : Structural Changes by Isocyanate and pH, and the Repercussion on Cr(VI) Removal. International Journal of Polymer Science No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-505932
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Manrique-Juárez, María D.& Martínez-Hernández, Ana Laura& Olea-Mejía, Oscar F.& Flores-Estrada, Jaime& Rivera-Armenta, José L.& Velasco-Santos, Carlos. Polyurethane-Keratin Membranes : Structural Changes by Isocyanate and pH, and the Repercussion on Cr(VI) Removal. International Journal of Polymer Science. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-505932
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-505932
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر