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ا.د.حمد بن عبدالله فهد اللحيدان

Professor

عضو هيئة تدريس (مشرف كرسي ابحاث السيرفاكتانت)

كلية العلوم
كلية العلوم ,مبنى 5 الدور الثاني ,قسم الكيمياء ,مكتب 2ب97
المنشورات
مقال فى مجلة
2020

Methylene Blue Catalytic Degradation Using Silver and Magnetite Nanoparticles Functionalized With a Poly(ionic Liquid) Based on Quaternized Dialkylethanolamine With 2-Acrylamido-2-methylpropane Sulfonate- co-Vinylpyrrolidone

, Ayman M Atta 1, Yaser M Moustafa 2, Hamad A Al-Lohedan 1, Abdelrahman O Ezzat 1, Ahmed I Hashem 3 . 2020

ABSTRACT: Catalytic degradation of organic water pollutants
has emerged as a cost- and energy-effective technique to treat
wastewater. In this work, new silver and magnetite nanoparticles
(NPs) were prepared with a protic poly(ionic liquid) (PIL) based
on a quaternized diethylethanolamine cation combined with 2-
acrylamido-2-methylpropane sulfonate-co-vinylpyrrolidone
(QAMPSA/VP) as a capping and a reducing agent. The
morphology, particle size, surface charge, thermal stability, and
magnetic properties of QAMPS/VP-Ag and Fe3O4 NPs were
investigated to determine the efficiency of the PIL as a reducing
and a capping agent to protect the produced NPs from oxidation or
thermal degradation. The activation energy, enthalpy, and entropy
of the catalytic degradation of the cationic methylene blue (MB)
dye in the presence of QAMPS/VP-Ag and Fe3O4 NPs were determined. The data elucidated that MB was completely degraded in 8
min in the presence of QAMPS/VP-Fe3O4 NPs as a Fenton oxidation catalyst. Moreover, their good magnetic properties allowed
their easy separation and reuse for five cycles without losing their magnetic or catalytic properties

نوع عمل المنشور
بحث علمي
رقم الانشاء
5
مجلة/صحيفة
ACS Omega 2020, 5, 2829−2842
الصفحات
2829−2842
مزيد من المنشورات
publications

Supercapacitors (SCs) have emerged as attractive energy storage devices due to their rapid charge/ discharge rates, long cycle life, and high-power density. However, the development of innovative…

بواسطة J. John Benitto, J. Judith Vijaya, B. Saravanakumar, Hamad Al-Lohedan and Stefano Bellucci
2024
تم النشر فى:
RSC
publications

The aim of this study involves the synthesis novel thiophene analogues that can be used as anticancer medications through a strategic multicomponent reaction connecting ethyl 4-chloroacetoacetate…

بواسطة Altaf S. Almatari, Ali Saeed, Ghada E. Abdel-Ghani, Mahmood M. S. Abdullah, Hamad A. Al-Lohedan, Ehab Abdel-Latif, and Amr El-Demerdash
2024
تم النشر فى:
Wiley
publications

In this study, inexpensive magnetite nanoparticles (Fe3O4) were prepared and applied to oil spill remediation. To do so, two novel hydrophobic amides, HADN and HATN, were prepared and applied to…

بواسطة Mahmood M. S. Abdullah, Hamad A. Al‑Lohedan
2024
تم النشر فى:
Springer