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Nanomaterials, such as Ag-nanoparticles (AgNPs), have recently been shown to have a broad range of applications in the chemical industry, medicine, biology, and many areas. In this work, the effect of nanostructure on the biological efficiency of prepared surfactants (R10, R12) based on the benzamide group was reported. FTIR and 1HNMR spectra were collected to confirm the structure of these surfactants. In addition, the nanostructures of the prepared surfactants assembled on Ag-nanoparticles (AgNPs) were investigated using UV and TEM techniques. Moreover, the antimicrobial properties of the pr..read more
Eid M. S. Azzam, Abdallah R. Ismail, Khalaf M. Alenezi, Hani El Moll
Lassaad Mechi, and Walaa I. El-sofany
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 232
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Recently, the electrode materials for next-generation lithium-ion batteries (LIBs) draw widespread attention on storing reversibly the electrical energy. For this issue, the expanded graphite and silicon particles are chosen to generate silicon/silicon carbide/graphite composite anode material using a high-temperature vacuum adsorption method. The prepared composites are measured by X-ray diffraction, transmission electron microscopy, and Raman spectra, et al. The composites are cycled at a current density of 50 mA g-1, in order to observe their potential specific capacity. An initial charge c..read more
Liyong Wang, Mei Wang, Huiqi Wang, Jinhua Yang, Shengsheng Ji, Lei Liu
Shengliang Hu and Quangui Guo
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 241
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This research delves into the properties of x% ZW-BT compounds (x=3% and 7%), synthesized using a solid-state reaction approach. Utilizing X-ray diffraction, the crystal structure of the x% ZW-BT compositions is confirmed, showcasing a distinct tetragonal symmetry devoid of any parasitic phases. With increasing dopant concentrations, slight reductions in lattice parameters are observed, signifying the even diffusion of dopant (Zn2+ and W6+) ions. Moreover, the validation of metal-oxygen bonding vibrations is achieved through Fourier-transform infrared spectroscopy (FTIR) analysis. Scanning ele..read more
Hayet Menasra, Fatima Adjal, Chaima Benbrika, Lakhdar Smaili, Karima Bounab
Zelikha Necira and Amara Elfetni
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 253
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New aromatic compounds were prepared by reacting 5,5'-methylene di-anthranilic acid with 4,4'-(diazene-1,2-diyl) dibenzoyl chloride by the well-known classical methods. To prepare compounds to contain an amide, ester, and azo groups as a bonding bridge between them. The synthesized was characterized by CHN, FT-IR, 1HNMR, and 13CNMR spectra. Then, they were reacted with polyvinyl alcohol PVA polymer using cold-warm esterification to prepare new graft polymers. The structures of the composites were determined by FT-IR. Graft polymerization of PVA with new aromatic compounds was a way to prepare ..read more
Zainab A. Jabarah, Maysoon T. Tawfiq and Israa sh. A.R. Al- Kadi
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 262
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Highly energy efficient and ion permeable ion exchange membranes are in high demand in many modern sectors to clean water, transform energy, and store energy in devices like electro-dialyzer, fuel cells, and batteries. However, greater resistance and reduction in ion permeation of conventional membranes dictate the desire for nanostructured functional ion exchange membranes. This project proposes the fabrication of ion exchange membranes using electroactive nanostructured polyaniline incorporation into ion exchange materials, electrostatically interaction between polymer and nanostructured ele..read more
Muhammad Farman, Farhat Yasmeen, Muhammad Aamir Shehzad,
Hafiz Muhammad Rauf and Muhammad Idrees Jilani
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 271
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A solvent extraction was applied using liquid ion exchange as a sensitive method to extract Germanium (IV) as anion complex K[GeO2(OH)2]- from basic media of KOH by used DB18C6 as a ligand dissolved in chloroform to form the ion pair association complex K-DB18C6+; K[GeO2(OH)2]-, the maximum wavelength of the extracted complex was λmax=290nm, and molar absorptive 1.269×103 L/mol.cm. the Beer's –lambert law was adhered to within the specified range (1-20)ppm. The limits of detection and quantity were 0.034 and 0.102 ppm, respectively. The research studied optimal conditions of extraction effici..read more
Safa Majeed Hameed, Sahar Aqeel Hussain, Mohammed Alaa Abdulzahra, and Fawzi Yahya Wadday
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 281
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SiC/g-C3N4 (SCN) was synthesized to inactivated the resistant bacteria; and the binding of SiC to g-C3N4 was simply determined by FT-IR. Plasmid pET-28a(+) carrying kanamycin resistance was transformed into the competence of Escherichia coli (E. coli), and its positive bacteria was used as the object of photocatalytic inactivation. Catalytic conditions were optimized, under which the bactericidal kinetics and reuse of the materials were studied. The photoelectric reaction and light absorption were studied by electrochemical workstation and UV-vis DRS. In addition, potassium dichromate (Cr6+), ..read more
Wenming Jiang, Chaoxia Wang, Rujira Sukhotu, Shiyang Zhou, Ying Yuan, Le Li and Jingjing Yang
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 290
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Oxidation of organic sulfides is a significant reaction due to its application in many fields. Herein, we have developed a novel catalyst-free oxidation of organic sulfides by O2 under relatively mild conditions. The choice of the procedure was based on the well-acknowledged reactivity of the active C(sp3)-H bond of organic compounds to form the corresponding alkyl carbon free radicals (R·) in the presence of O2. The results showed that hydrocarbons such as tetrahydronaphthalene (THN) and cumene possessing the active C(sp3)-H bonds due to their lower bond dissociation energy (BDE), as a solven..read more
Zufeng Wang, Hongyi Wang, Zhiying Zhao, Yu Zhu, Youer Deng, Xiaolong Li, Dan Zeng, Yachun Liu, Chao Zhang and Zaihui Fu
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 300
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Almost all of synthetic strategies of benzopyran derivatives suffer from some drawbacks such as multistep sequence, time consuming and expensive purification processes, by-products, low product yields, or longer reaction time. So we recently reported an efficient method that three new benzopyran derivatives were synthesized, 2-amidogen-3-phenylsulfonyl-4-tolyl-4H-benzochroene(4A), 2-amidogen-3-phenylsulfonyl-4-nitrophenyl-4H-benzochroene ( 4B ) and 2-amidogen-3-phenylsulfonyl-4-ethylphenyl)-4H-benzochroene(4C) by the multicomponent reaction （MCR）of 1-naphthol , aromatic aldehydes and benzenesu..read more
Yuan Ji, Li Hu and Zhengyu Zhang
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 309
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In the presented study, novel compounds bearing the benzo[a]phenothiazine or naphtho[a]phenothiazin skeletons were developed for the first time as fingermark detecting reagents on paper surfaces which were then investigated in detail. First, two phenothiazine derivatives, 1,4-dibromo-5H-benzo[a]phenothiazin-5-one and 8,13-dibromo-7H-naphtho[2,3-a]phenothiazin-7-one were synthesized and characterized by spectroscopic methods. The phenothiazines were tested as potential reagents for latent fingermarks on copier paper and were then compared with 1,8-diazofluoren-9-one (DFO). Both compounds reacte..read more
Kıymet Berkil Akar, Oğuzhan Bebek and Barış Eran
- 31 May 2024
- Volume Detail: VOLUME 46, NO3, JUNE-2024
- Pages: 322
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