This study investigates the photodegradation of Acid Violet 49 in an aqueous medium under UV, UV/HO and combined with photo catalyst (UV/HO/TiO, UV/HO/ZnO, and UV/HO/SnO). The impact of all operational parameters including catalytic dosage, peroxidation (HO), pH and dye concentration were evaluated. The degradation efficiency of AV49 was enhanced up to 96% with the alternative photocatalyst UV/HO/ZnO under the circumstances of 0.
View Article and Find Full Text PDFThe development of low-cost, eco-friendly, and earth-friendly electrode materials for energy storage and conversion applications is a highly desirable but challenging task for strengthening the existing renewable energy systems. As part of this study, orange peel extract was utilized to synthesize a magnesium oxide-silicon dioxide hybrid substrate system (MgO-SiO) for coating cobalt oxide nanostructures (CoO) hydrothermal methods. A variety of MgO-SiO compositions were used to produce CoO nanostructures.
View Article and Find Full Text PDFObjective: Telemedicine is a digital substitute for in-person healthcare service delivery systems that has gained popularity amid the global COVID-19 pandemic. The objective of this study was to evaluate telemedicine compatibility from the perspective of healthcare practitioners to enhance the effectiveness and spectrum of the Model for Assessment of Telemedicine.
Method: Primary and Secondary Healthcare and King Edward Medical University extended their respective telemedicine services in 2020 where 24,516 patients were benefited from the telemedicine services provided by 1273 doctors from different specializations.
This study aimed to evaluate the adaptation and effectiveness of telemedicine with the diffuse-dual-channel system (DDS) and tiered-gatekeeper system (TGS) across different tiers of the healthcare system on technical-organizational-environmental (TOE) framework. The telemedicine services were extended as Tiered-gatekeeper system (TGS) by Primary and Secondary Healthcare (PSHC) and Diffuse-dual-channel system (DDS) by King Edward Medical University (KEMU) in 2020 benefiting 2605 and 21,905 patients, respectively. This cross-sectional survey is based on a structured questionnaire conducted on 172 healthcare practitioners (HCP) from KEMU and 76 from PSHC selected by purposive sampling and analysis is conducted through descriptive analysis and the Boruta features selection method.
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View Article and Find Full Text PDFResearchers are increasingly focusing on using biomass waste for green synthesis of nanostructured materials since green reducing, capping, stabilizing and orientation agents play a significant role in final application. Wheat peel extract contains a rich source of reducing and structure orienting agents that are not utilized for morphological transformation of NiO nanostructures. Our study focuses on the role of wheat peel extract in morphological transformation during the synthesis of NiO nanostructures as well as in non-enzymatic electrochemical urea sensing.
View Article and Find Full Text PDFIn response to the increasing availability of hydrogen energy and renewable energy sources, molybdenum disulfide (MoS)-based electrocatalysts are becoming increasingly important for efficient electrochemical water splitting. This study involves the incorporation of palladium nanoparticles (PdNPs) into hydrothermally grown MoS a UV light assisted process to afford PdNPs@MoS as an alternative electrocatalyst for efficient energy storage and conversion. Various analytical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and energy dispersive spectroscopy (EDS), were used to investigate the morphology, crystal quality, and chemical composition of the samples.
View Article and Find Full Text PDFRecently, the nanostructured nickel-cobalt bimetallic oxide (NiCoO) material with high electrochemical activity has received intensive attention. Beside this, the biomass assisted synthesis of NiCoO is gaining popularity due to its advantageous features such as being low cost, simplicity, minimal use of toxic chemicals, and environment-friendly and ecofriendly nature. The electrochemical activity of spinel NiCoO is associated with its mixed metal oxidation states.
View Article and Find Full Text PDFThe preparation of CoO nanostructures by a green method has been rapidly increasing owing to its promising aspects, such as facileness, atom economy, low cost, scale-up synthesis, environmental friendliness, and minimal use of hazardous chemicals. In this study, we report on the synthesis of CoO nanostructures using the milky sap of (CP) by a low-temperature aqueous chemical growth method. The milky sap of CP-mediated CoO nanostructures were investigated for oxygen evolution reactions (OERs) and supercapacitor applications.
View Article and Find Full Text PDFThe study was aimed at determining the ameliorative potential of quercetin and (ZO) against sodium arsenate-induced neurotoxicity in male Wistar rats. Thirty adult animals were randomly allocated to five groups ( = 6). Group I served as control, groups II and IV were treated with ZO [300 mg/kg, PO (per os)/day], and group V animals were administered quercetin (50 mg/kg, PO/day) for 18 days.
View Article and Find Full Text PDFTo determine the effect of quality of sleep (SL) and self-reported health (SRH) on burnout (BO) and whether burnout, in turn, impacts work performance (WP) among employees of the Higher Educational Institutions (HEI's). Data was collected using the survey method using questionnaire items adapted from the literature. The final sample consisted of 138 employees.
View Article and Find Full Text PDFThe surface tailored metal oxide nanostructures for the development of non-enzymatic sensors are highly demanded, but it is a big task due to the wide range of complexities during the growth process. The presented study focused on the surface modification of the heterogeneous morphology of cobalt oxide (CoO) prepared by the hydrothermal method. Further surface modification was conducted with the use of sodium citrate as a reducing and surface modifying agent for the CoO nanostructures through the high density of oxygenated terminal groups from the citrate ions.
View Article and Find Full Text PDFHerein, polymeric cryogels containing poly(N-isopropylacrylamide) were synthesized by cryo-polymerization at subzero temperature. The synthesized cryogels were loaded with silver and palladium nanoparticles by the chemical reduction method at room temperature using the reducing agent NaBH. Moreover, for comparison with cryogels, pure poly(N-isopropylacrylamide) hydrogel and its silver hybrid were also prepared by the conventional method at room temperature.
View Article and Find Full Text PDFIn this study, chloride (Cl−) ions were successfully doped into ZnO nanostructures by the solvothermal method. The effect of various Cl− concentrations on the photocatalytic activity of ZnO towards the photodegradation of methylene blue (MB) under the illumination of ultraviolet light was studied. The as-prepared Cl−-doped ZnO nanostructures were analyzed in terms of morphology, structure, composition and optical properties.
View Article and Find Full Text PDFIn this study, we synthesized hybrid systems based on manganese oxide@zinc oxide (MnO@ZnO), using sol gel and hydrothermal methods. The hybrid materials exhibited hierarchical morphologies and structures characterized by the hexagonal phase of ZnO and the tetragonal phase of MnO. The hybrid materials were tested for degradation of methylene blue (MB), methyl orange (MO), and malachite green (MG) under ultraviolet (UV) light illumination.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
February 2023
Based on the Pakistan Demographic and Health Survey (PDHS) 2017-18 data, the study intends to present the relative status of a particular fuel (type) in terms of its level of use in different regions of Pakistan. At the same time, the study investigates the determinants of the household type of fuel used for cooking in Pakistan. Socioeconomic characteristics of the households and household heads are taken as determinants of the main type of fuel (clean or dirty) used for cooking by the households.
View Article and Find Full Text PDFWastewater from the textile industry is chronic and hazardous for the human body due to the presence of a variety of organic dyes; therefore, its complete treatment requires efficient, simple, and low cost technology. For this purpose, we grew ZnO microstructures in the presence of psyllium husk, and the role of psyllium husk was to modify the surface of the ZnO microstructures, create defects in the semiconducting crystal structures, and to alter the morphology of the nanostructured material. The growth process involved a hydrothermal method followed by calcination in air.
View Article and Find Full Text PDFIn this study, we have investigated the role of natural dead sea sponge (DSS, Porifera) as a three-dimensional (3D) porous host substrate for the immobilization of nanostructured ZnO material towards the development of ZnO based floating photocatalysts for efficient removal of methylene blue (MB) dye under the illumination of sunlight. After photodegradation, the treated water after dye degradation contains several pathogens, different disinfectants or chemical reagents that are essentially used. This is not the case for DSS as it can naturally kill any pathogens during the wastewater treatment process.
View Article and Find Full Text PDFThe present study is focused on yogurt as a simple, inexpensive, abundant, and green source for the preparation of luminescent carbon material for enhancing the photodegradation of methylene blue (MB). It introduces an ecological and sustainable approach for the large-scale production of carbon material using the direct thermal annealing of yogurt in a muffle furnace. The size of the as-prepared carbon material is about 200-300 nm, with average particle size distribution of 355 nm.
View Article and Find Full Text PDFThe present study demonstrates the crucial role of agave americana extract in enhancing the optical properties of zinc oxide (ZnO) through thermal treatment method. Various analytical and surface science techniques have been used to identify the morphology, crystalline structure, chemical composition, and optical properties, including scanning electron microscopy, x-ray diffraction, high resolution transmission electron microscopy (HRTEM), x-ray spectroscopy (EDS) and UV-visible spectroscopy techniques. The physical studies revealed the transformation of ZnO nanorods into nanosheets upon addition of an optimized amount of agave americana extract, which induced large amount of amorphous carbon deposited onto ZnO nanostructures as confirmed by HRTEM analysis.
View Article and Find Full Text PDFThe present study describes the use of a leaf extract from as a source of natural antioxidants for the surface alteration of bulk titanium dioxide (TiO) in two steps. First, the hydro-thermal treatment of the bulk TiO material was carried out and followed by thermal annealing at 300 °C for 3 h in air. The role of the leaf extract of on the performance of the bulk TiO material for the removal of methylene blue (MB) was also studied.
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