Abstract
In this work, a functional nanocomposite consisting of multi walled carbon nanotubes combined with nanoparticles of silver and Pomegranate peel extract (MWCNTs- SNPs -NPGPE) was successfully synthesized using ultra sonic technique. The nanocomposite has been characterized using Transmission electron microscope (TEM), XRD, Energy dispersive X-ray spectroscopy (EDS) UV-Vis and FTIR. The obtained results reveal that the MWCNTs-SNPs-NPGPE nanocomposite exhibits form of nanotubes with rough surfaces and containing black spots, which are the silver nanoparticles. The dimensions of this tube are 161 nm in length and 60 nm in width with nanoparticles of silver not exceeding 20 nm. The XRD pattern of the prepared MWCNTs-SNPs-NPGPE nanocomposite showed four main peaks corresponding to the carbon nanotubes and planes of face centered cubic silver nanoparticles. The IR spectra referring to the(O-H) group stretching vibrations in carboxylic acid groups might come from NPGPE, and the stretching vibration of aliphatic C-H in carbon nanotubes. The carbon nanotube was used in solar cells (CNSCs) fabricated with and/or without fluorine-doped tin oxide (FTO) on the glass substrate with poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methylester (PCBM) blends (P3HT: PCBM). The FTO-(MWCNTs-SNPs-NPGPE / P3HT: PCBM/CNT/FTO-glass revealed more efficient CNSCs.
Highlights
In up-to-date research, there is a growing interest in the agricultural by-products that are chosen based on purity, price, potential extent of its activation and continuity of its supply such as dates stones )1,2(, corncob )3,4(, coconuts shells )5,6(, oil palm stones and shells )7,8(, rice straw and lignin )9,10(
transmission electron microscope (TEM) measurement showed a unique shape of the prepared material, which was in the form of nanotubes with rough surfaces and containing black spots, which are the silver nanoparticles [19,20]
The displacement of carboxylic acid groups is most probably to occur at the interfacial interaction between the SNPs and the nanotubes due to the bond of hydrogen created between acetate groups and modified MWCNTs [21]
Summary
In up-to-date research, there is a growing interest in the agricultural by-products that are chosen based on purity, price, potential extent of its activation and continuity of its supply such as dates stones )1,2(, corncob )3,4(, coconuts shells )5,6(, oil palm stones and shells )7,8(, rice straw and lignin )9,10(. Nanomaterials most likely have a much larger ratio of surface area to volume compared to that of their imitative forms, which can lead to greater chemical reactivity and impact their strength. The quantum effects refer to much more importance in identifying the materials properties and characteristics which lead to behaviors of novel optical, electrical and magnetic )11,12(. Carbon nanotubes can open an unbelievable enforcements range in electronics, chemical processing, materials science, energy management, and many other applications )13(. Carbon nanotubes have been widely introduced in solar cell (CNSCs) specially to fabricate high-efficiency organic solar cells because of their extremely high surface area )14(. The possibility to make semiconducting carbon nanotube films, may provide the greatest efficiency improvement with a lower concentration of carbon nanotubes on the active semiconducting electrode )15(. The device possesses an appreciated power conversion efficiency of 14.9% and 0.63% )16, 17(
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