Effective Photodegradation of Methyl Orange Using Fluidized Bed Reactor Loaded with Cross-Linked Chitosan Embedded Nano-CdS Photocatalyst
المؤلفون المشاركون
Szeto, Wai
Chan, Shun-Wan
Yuen, C. W. M.
Kan, Chi Wai
Lam, Kim Hung
المصدر
International Journal of Chemical Engineering
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-08-05
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
العلوم الهندسية و تكنولوجيا المعلومات
الملخص EN
Chitosan-based photocatalyst composites containing CdS nanocrystals with and without glutaraldehyde or epichlorohydrin cross-linking treatments were investigated and the catalyzed photodegradation of methyl orange in aqueous solution was examined.
In addition, the effects of catalyst dosage, initial dye concentration, and initial pH of the dye solution on the photodegradation kinetics were investigated.
In this study, the effect of initial solution pH was more important than other factors.
The photocatalyst composite could remove 99% dye in 80 minutes at pH 4.
The catalyst composite was characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), fourier transform infrared (FT-IR), and visible reflectance spectroscopy.
The dye removal mechanism of methyl orange involved an initial sorption process followed by photodegradation.
The sorption process underwent the pseudo-second order kinetics, while photodegradation followed the Langmuir-Hinshelwood kinetics.
Although the glutaraldehyde cross-linked chitosan enhanced the initial dye sorption, the epichlorohydrin cross-linked catalyst composite demonstrated a better overall dye removal performance, especially in the photodegradation step.
Both chitosan encapsulated catalyst with and without epichlorohydrin cross-linking demonstrated the same pseudo-first order photodegradation kinetic constant of 0.026 min−1 and the same dye removal capacity.
The catalyst composite could be reused but the photocatalytic activity dropped successively in each cycle.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Szeto, Wai& Kan, Chi Wai& Yuen, C. W. M.& Chan, Shun-Wan& Lam, Kim Hung. 2014. Effective Photodegradation of Methyl Orange Using Fluidized Bed Reactor Loaded with Cross-Linked Chitosan Embedded Nano-CdS Photocatalyst. International Journal of Chemical Engineering،Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-459160
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Szeto, Wai…[et al.]. Effective Photodegradation of Methyl Orange Using Fluidized Bed Reactor Loaded with Cross-Linked Chitosan Embedded Nano-CdS Photocatalyst. International Journal of Chemical Engineering No. 2014 (2014), pp.1-16.
https://search.emarefa.net/detail/BIM-459160
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Szeto, Wai& Kan, Chi Wai& Yuen, C. W. M.& Chan, Shun-Wan& Lam, Kim Hung. Effective Photodegradation of Methyl Orange Using Fluidized Bed Reactor Loaded with Cross-Linked Chitosan Embedded Nano-CdS Photocatalyst. International Journal of Chemical Engineering. 2014. Vol. 2014, no. 2014, pp.1-16.
https://search.emarefa.net/detail/BIM-459160
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-459160
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