Due to the dual issues of antibiotic resistance and bioaccumulation toxicity, antibiotics are ubiquitously present in aquatic environments, and this is causing serious concern. Herein, novel nickel ferrite (NiFeO) nanoparticles were successfully loaded onto activated biochar (BC) derived from banana peel (BP) to obtain magnetic nanocomposite (BC-NiFeO) as an effective biosorbent for the ciprofloxacin antibiotic (CIP) elimination from pharmaceutical effluent. A facile co-precipitation approach was utilized to construct the heterogeneous BC-NiFeO.
View Article and Find Full Text PDFFor the first time, a novel BiPO/BiS heterostructures with different morphologies have been fabricated through a facile and rapid one pot precipitation route followed by anion-exchange strategy for the photoreduction of toxic Cr(VI) to harmless Cr (III). The hybrid structures systematically investigated using XRD, FE-SEM, EDS, TEM, HRTEM, XPS, FT-IR, UV-vis DRS, and PL. Changing the solvent type has a significant role for controllable morphologies of BiPO/BiS hybrid as well as the catalytic activity.
View Article and Find Full Text PDFA novel BiPO photocatalyst has been fabricated a facile precipitation route using dimethyl sulfoxide (DMSO) as a solvent. The physical and chemical properties of the BiPO photocatalyst material were analyzed using XRD, Rietveld refinements XRD, FE-SEM, TEM, HR-TEM, EDS, XPS, FT-IR, Raman spectra, UV-Vis (DRS), and PL. The results confirm that hexagonal phase BiPO (HBIP) nanorods were successfully synthesized.
View Article and Find Full Text PDFAlgal blooms at the major water treatment plants in Egypt have been reported since 2006. While previous studies focused on algal types and their correlation with disinfection by-products, correlation between raw water quality and algal blooms were not explored. Therefore, a survey of Nile water quality parameters at a major water intake in the Greater Cairo Urban Region was conducted from December 2011 to November 2012.
View Article and Find Full Text PDFThe presence of chlorophenols in wastewater represents a serious challenge for its treatment and its further reuse. In this study, the use of commercial acid washed activated carbon as sorbent material for the removal of 2 chlorophenol, 2,4 dichlorophenol and 2,4,6 trichlorophenol from synthetic. aqueous solutions is evaluated.
View Article and Find Full Text PDFGroundwater is the second most abundant water resource in Egypt, 2/3 of which is consumed within the Nile Delta Region and the valley. However, with recent intensification of agricultural and urbanizing activities over the past 40 years, the water quality in the Nile basin aquifer has significantly deteriorated. The objective of this study is to survey the variation in the groundwater quality tapped within a typical Egyptian village located in the valley, north of Cairo, from January until April 2000.
View Article and Find Full Text PDFThe objective of this study was to investigate the extent of contamination of some of the most used paper denominations of the Egyptian currency (25 PT). Sixty-nine bills in circulation were collected from November 2003 through January 2004. A swab from each bill was cultured on nutrient agar and incubated at 37 degrees C for 48 h.
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