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Munirah D. Albaqami
Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia

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Journal article
Published: 11 August 2021 in Water
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The development of cost-effective and ecofriendly approaches toward water purification and antibacterial activity is a hot research topic in this era. Purposely, strontium-doped zinc selenide (Sr-doped ZnSe) nanoparticles, with different molar ratios of Sr2+ cations (0.01, 0.05, and 0.1), were prepared via the co-precipitation method, in which sodium borohydride (NaBH4) and 2-mercaptoethanol were employed as reducing and stabilizing agents, respectively. The ZnSe cubic structure expanded by Sr2+ cations was indicated by X-ray diffraction (XRD) analysis. The absorption of the chemical compounds on the surface was observed via Fourier transform infrared (FT-IR) spectroscopy. The optical orientation was measured by ultraviolet–visible diffused reflectance spectroscopy (UV-DRS) analysis. The surface area, morphology, and elemental purity were analyzed using field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), and energy-dispersive spectroscopy (EDS) analyses. The oxidation state and valency of the synthesized nanoparticles were analyzed using X-ray photoelectron spectroscopy (XPS). Sr-doped ZnSe nanoparticles were investigated for photocatalytic degradation of methyl orange (MO), and their antibacterial potential was investigated against different bacterial strains. The antibacterial activity examined against Staphylococcus aureus and Escherichia coli implied the excellent biological activity of the nanoparticles. Moreover, the Sr-doped ZnSe nanoparticles were evaluated by the successful degradation of methyl orange under visible light irradiation. Therefore, Sr-doped ZnSe nanoparticles have tremendous potential in biological and water remediation fields.

ACS Style

V. Beena; S. L. Rayar; S. Ajitha; Awais Ahmad; Munirah D. Albaqami; Fatmah Ahmed Ali Alsabar; Mika Sillanpää. Synthesis and Characterization of Sr-Doped ZnSe Nanoparticles for Catalytic and Biological Activities. Water 2021, 13, 2189 .

AMA Style

V. Beena, S. L. Rayar, S. Ajitha, Awais Ahmad, Munirah D. Albaqami, Fatmah Ahmed Ali Alsabar, Mika Sillanpää. Synthesis and Characterization of Sr-Doped ZnSe Nanoparticles for Catalytic and Biological Activities. Water. 2021; 13 (16):2189.

Chicago/Turabian Style

V. Beena; S. L. Rayar; S. Ajitha; Awais Ahmad; Munirah D. Albaqami; Fatmah Ahmed Ali Alsabar; Mika Sillanpää. 2021. "Synthesis and Characterization of Sr-Doped ZnSe Nanoparticles for Catalytic and Biological Activities." Water 13, no. 16: 2189.

Journal article
Published: 06 August 2021 in Coatings
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Cost-effective, clean, highly transparent, and flexible as well as a coatable packaging material is envisioned to solve or at least mitigate quality preservation issues of organic materials, originating from moisture interaction under ambient conditions. Liquid phase processing of packaging coatings using nano-clay and polyvinyl alcohol (PVOH) has been developed and reported. Detailed analysis of the developed coating revealed moisture permeability of 2.8 × 10−2 g·cm/m2·day at 40 °C and 85% relative humidity (RH), which is in close accordance with Bharadwaj’s theoretical permeability model. Moreover, the developed coatings are not only more than 90% transparent, when exposed to white light, but also exhibit excellent flexibility and even after going through 10,000 bending cycles maintained the same blocking effect against moisture.

ACS Style

Ali Chandio; Iftikhar Channa; Muhammad Rizwan; Shakeel Akram; Muhammad Javed; Sajid Siyal; Muhammad Saleem; Muhammad Makhdoom; Tayyaba Ashfaq; Safia Khan; Shahid Hussain; Munirah Albaqami; Reham Alotabi. Polyvinyl Alcohol and Nano-Clay Based Solution Processed Packaging Coatings. Coatings 2021, 11, 942 .

AMA Style

Ali Chandio, Iftikhar Channa, Muhammad Rizwan, Shakeel Akram, Muhammad Javed, Sajid Siyal, Muhammad Saleem, Muhammad Makhdoom, Tayyaba Ashfaq, Safia Khan, Shahid Hussain, Munirah Albaqami, Reham Alotabi. Polyvinyl Alcohol and Nano-Clay Based Solution Processed Packaging Coatings. Coatings. 2021; 11 (8):942.

Chicago/Turabian Style

Ali Chandio; Iftikhar Channa; Muhammad Rizwan; Shakeel Akram; Muhammad Javed; Sajid Siyal; Muhammad Saleem; Muhammad Makhdoom; Tayyaba Ashfaq; Safia Khan; Shahid Hussain; Munirah Albaqami; Reham Alotabi. 2021. "Polyvinyl Alcohol and Nano-Clay Based Solution Processed Packaging Coatings." Coatings 11, no. 8: 942.

Journal article
Published: 11 December 2020 in Optik
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A highly efficient and surfactant free hydrothermal method is adopted to synthesis tungsten trioxide (WO3) modified Titania (TiO2) composite for direct visible light photochromic applications. The physico chemical characterization of anatase phase formation confirmed by X-Ray diffraction (XRD) and Raman Spectroscopy. The different weight percent amount of tungsten trioxide incorporated into TiO2 nanocomposite have been studied for coloration and bleaching property under in the presence and absence of visible light irradiation. The as prepared composite form of WO3-Titania shows efficient and stable cycle performance up to 15 cycles at various time intervals. The Transmission electron microscopy (TEM), Scanning electron microscopy (SEM) reveals the largely consisting of square and small circular like particles formation and each square and spherical shapes. The photochromic response of the materials increases in the order of WO3/TiO2(0.5:1)> WO3/TiO2 (1:1)> >WO3/TiO2-2(1:2) and in the case of WO3/TiO2-3(1:3) and WO3/TiO2-(1:4) are consumed little more time for coloration and bleaching process. The cycle stability and color transformation have been studied for highly efficient WO3/TiO2 (WT-2) samples under direct sun light and in controlled solar simulator reaction condition.

ACS Style

T. Radhika; Rajabathar. Jothi Ramalingam; V. Aneesha; Munirah D. Albaqami. Synthesis and characterization of Photochromic inkless coating based on WO3-Titania nanocomposite under sun light and solar simulation condition. Optik 2020, 228, 166145 .

AMA Style

T. Radhika, Rajabathar. Jothi Ramalingam, V. Aneesha, Munirah D. Albaqami. Synthesis and characterization of Photochromic inkless coating based on WO3-Titania nanocomposite under sun light and solar simulation condition. Optik. 2020; 228 ():166145.

Chicago/Turabian Style

T. Radhika; Rajabathar. Jothi Ramalingam; V. Aneesha; Munirah D. Albaqami. 2020. "Synthesis and characterization of Photochromic inkless coating based on WO3-Titania nanocomposite under sun light and solar simulation condition." Optik 228, no. : 166145.