A comparative study of Fe nanoparticles and bimetallic Fe-Ni Nanoparticles in the removal of bromophenol blue from aqueous solutions

العناوين الأخرى

دراسة مقارنة بين دقائق الحديد النانوية و الدقائق النانوية المختلطة للحديد و النيكل في إزالة مادة "بروموفينول بلو" من المحاليل المائية

مقدم أطروحة جامعية

Nasir, Rahiq

مشرف أطروحة جامعية

Shahwan, Talal

الجامعة

جامعة بيرزيت

الكلية

كلية العلوم

القسم الأكاديمي

دائرة الكيماء

دولة الجامعة

فلسطين (الضفة الغربية)

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2018

الملخص الإنجليزي

Water pollution is the most global problem in the 21st century and it has many aspects and causes different impacts.

The problem is caused mainly by human activities, such as industry.

Textile industry is one of the huge wastewater sources as recorded by the Central Pollution Control.

The textile effluents are very complex and difficult to treat.

It contains pollutants that differ in the chemical and physical properties, suspended materials, and non-biodegradable compounds such as detergent, dyes and fibers.

During the last two decades, iron-based nanomaterials were globally widely investigated due to its high removal capacity toward a wide range of water pollutants.

Iron-based bimetallic nanoparticles are being studied as an alternative to pure iron nanoparticles, in order to enhance the reactivity of the material.

In this research, iron nanoparticles (Fe NPs) and bimetallic iron-nickel nanoparticles (Fe-Ni NPs) were synthesized by co-liquid phase reduction method and characterized using XRD, XPS, SEM and TEM techniques.

A comparative study was performed to assess the efficiency of Fe and Fe-Ni NPs in the removal of bromophenol blue (BPB) dye from water.he effect of various parameters on the removal process was inspected, such as sample composition, time, initial dye concentration, pH, and temperature.

The results of the experiments showed that the efficiency of Fe NPs towards dye removal was higher than that of Fe-Ni NPs.

Moreover, the dye removal process using Fe NPs was much faster than of Fe-Ni NPs.

The kinetics data showed that the removal of BPB by Fe and Fe-Ni NPs follow pseudo-second order rate equation.

The effect of initial dye concentration data were used to evaluate “apparent equilibrium constant (K)” values over a concentration range of 20-100 mg/L, based on a modified form of the linear isotherm.

For both types of NPs, the removal extent of dye decreased as the temperature increased, indicating exothermic behavior.

Entropy of the system decreased in both cases, and the pH had minimal effects on the removal of the dye by both types of nanomaterials.

التخصصات الرئيسية

الكيمياء

الموضوعات

• الحديد
• النيكل
• المحاليل المائية
• البنية النانوية

عدد الصفحات

75

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-889349