Preparation, Characterization, and Application of Metakaolin-Based Geopolymer for Removal of Methylene Blue from Aqueous Solution
المؤلفون المشاركون
El Alouani, Marouane
Alehyen, Saliha
El Achouri, Mohammed
Taibi, M’hamed
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-05-28
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
Metakaolin-based geopolymers are aluminosilicate materials that can be used as cationic dye adsorbents in aqueous system treatment.
Our aim in this paper is to study the ability of geopolymer powder produced from metakaolin and alkaline activators to act as an adsorbent to remove methylene blue (MB).
The solid materials were systematically analyzed by X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier-transform infrared spectrometery (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and the point of zero charge.
XRF, FTIR, XRD, SEM, and EDX analyses confirmed the formation of a geopolymer composite by geopolymerization reaction.
The influence of various experimental factors such as geopolymer dosage, pH, initial dye concentration, contact time, and temperature was assessed.
Adsorption isotherms were evaluated by Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich isotherms.
Kinetics data were studied using pseudo-first-order, pseudo-second-order, and intraparticle diffusion models.
The thermodynamic parameters, namely, Gibbs free energy (ΔG°), enthalpy (ΔH°), and entropy (ΔS°), were determined.
The results indicated that the maximum decolorization was found in high pH values.
The collected isotherm data were best fitted by the Langmuir isotherm, and the maximum adsorption capacity of dye onto the geopolymer was 43.48 mg/g.
The experiment kinetics followed the pseudo-second-order kinetic models.
The thermodynamic results demonstrated that the adsorption of the obtained material occurs spontaneously as an endothermic process.
The results confirmed that the prepared adsorbent can be used for remediation of water contaminated by MB dye.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
El Alouani, Marouane& Alehyen, Saliha& El Achouri, Mohammed& Taibi, M’hamed. 2019. Preparation, Characterization, and Application of Metakaolin-Based Geopolymer for Removal of Methylene Blue from Aqueous Solution. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1170971
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
El Alouani, Marouane…[et al.]. Preparation, Characterization, and Application of Metakaolin-Based Geopolymer for Removal of Methylene Blue from Aqueous Solution. Journal of Chemistry No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1170971
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
El Alouani, Marouane& Alehyen, Saliha& El Achouri, Mohammed& Taibi, M’hamed. Preparation, Characterization, and Application of Metakaolin-Based Geopolymer for Removal of Methylene Blue from Aqueous Solution. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1170971
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1170971
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