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Comparative study of the removal of urea by electrocoagulation and electrocoagulation combined with chemical coagulation in aqueous effluents.
Sci Rep
December 2024
Civil Engineering Department, Benha Faculty of Engineering, Benha, 13512, Egypt.
Urea is a major issue in human wastewater because it may be easily broken down by the urease enzyme produced by bacteria, leading to ammonia production. Due to its ability to increase soil pH and eutrophicate streams, ammonia-containing effluent emissions pose environmental and health risks. This study aimed to evaluate the effectiveness of various treatment approaches in reducing urea concentrations by comparing the removal rates of conducting electrocoagulation (EC), EC followed by chemical coagulation (EC-CC), and CC followed by electrocoagulation (EC-CC).
View Article and Find Full Text PDFImmobilization of biomolecular anthocyanin natural sensor into plasma-cured polyethylene terephthalate fibers from recycled plastic waste for determination of ammonia.
Luminescence
December 2023
Department of Chemistry, College of Sciences, Umm Al-Qura University, Makkah, Saudi Arabia.
Polyester textiles have been applied in numerous industrial applications. Polyester fibers are characterized with being excellent insulators to electricity, having excellent flexural and impact strength, ease of manufacture, low-cost, as well as having resistance to moisture and chemicals. However, polyester fibers cannot be stained due to the absence of active dyeing sites on the surface of the fibrous structure.
View Article and Find Full Text PDFComparative photoluminescence study of nitrogen-doped carbon dots co-doped with boron and sulphur.
Luminescence
September 2022
Photonic Materials and Devices Laboratory, Department of Physics, National Institute of Technology Calicut, Kerala, India.
Although different studies in carbon dots (CDs) have been reported based on heteroatom doping, most of them have focussed on the enhancement of fluorescence properties. Here we report a comparative study of both fluorescence and room-temperature phosphorescence (RTP) of nitrogen-sulphur-doped CDs (N-S CDs) and nitrogen-boron-doped CDs (N-B CDs) with N-doped CDs (N CDs). The CDs used in the study were synthesized through microwave-assisted pyrolysis.
View Article and Find Full Text PDFDevelopment of green and sustainable smart biochromic and therapeutic bandage using red cabbage (Brassica oleracea L. Var. capitata) extract encapsulated into alginate nanoparticles.
Int J Biol Macromol
June 2022
Department of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia; Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, 35516, Egypt. Electronic address:
Novel multifunctional wound dressing with the ability to protect, cure and sense the healing process, was developed. Red-cabbage extract has been reported to exhibit bioactive compounds with the ability to function as antioxidant, antiinflammatory, anticancer, antibacterial, antifungal, and antiviral agent, as well as a natural pH-sensory chromophoric material. An anthocyanin extract was prepared from Red-cabbage (Brassica oleracea L.
View Article and Find Full Text PDFPreparation of green and sustainable colorimetric cotton assay using natural anthocyanins for sweat sensing.
Int J Biol Macromol
November 2021
Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt.
Herein, we develop a novel smart cotton swab as a diagnostic assay for onsite monitoring of sweat pH changes toward potential applications in monitoring human healthcare and drug exam. Anthocyanin (Ac) can be extracted from Brassica oleracea var. capitata f.
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