Synthesis of Ag Nanoparticles-Decorated CNTs via Laser Ablation Method for the Enhancement the Photocatalytic Removal of Naphthalene from Water

Fowzia S Alamro; Ayman M Mostafa; Khulood A Abu Al-Ola; Hoda A Ahmed; Arafat Toghan

doi:10.3390/nano11082142

Synthesis of Ag Nanoparticles-Decorated CNTs via Laser Ablation Method for the Enhancement the Photocatalytic Removal of Naphthalene from Water

Nanomaterials (Basel). 2021 Aug 22;11(8):2142. doi: 10.3390/nano11082142.

Authors

Fowzia S Alamro¹, Ayman M Mostafa^{2

3

4}, Khulood A Abu Al-Ola⁵, Hoda A Ahmed^{6

7}, Arafat Toghan^{8

9}

Affiliations

¹ Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.
² Laser Technology Unit, Center of Excellent for Advanced Science, National Research Centre, 33 El Bohouth st. (Former El Tahrir st.), Dokki, Giza 12622, Egypt.
³ Spectroscopy Department, Physics Division, National Research Centre, 33 El Bohouth st. (Former El Tahrir st.), Dokki, Giza 12622, Egypt.
⁴ Center for Imaging and Microscopy (CIM), Zewail City of Science and Technology, October Gardens, 6th of October, Giza 12578, Egypt.
⁵ Chemistry Department, College of Sciences, Al-Madina Al-Munawarah, Taibah University, Al-Madina 30002, Saudi Arabia.
⁶ Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt.
⁷ Chemistry Department, College of Sciences, Yanbu, Taibah University, Yanbu 30799, Saudi Arabia.
⁸ Chemistry Department, Faculty of Science, South Valley University, Qena 83523, Egypt.
⁹ Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia.

Abstract

Silver nanoparticles (Ag NPs) were decorated with different amounts on the exterior walls of carbon nanotubes (CNTs) by a laser ablation assisted method, especially in liquid media to be applied as a good adsorption material against naphthalene. The laser ablation time was controlled the amount of decoration Ag NPs on CNTs. The prepared nanocomposite was analyzed via different analytical techniques. Ag NPs with a small size distribution of 29 nm are uniformly decorated with spherical shape on CNTs walls. The disorder degree of tubular structure and shifting of the vibrational characteristic peaks increase with the increase in the decoration of Ag NPs. After that, the prepared samples were investigated for the removal of naphthalene. These studies of loading Ag NPs with different amounts on the surface of CNTs act as a promising material for water treatment.

Keywords: CNT; PLAL; catalytic efficiency; laser ablation; nanocomposites.