The efficiency of heterogeneous photocatalytic processes is currently limited due to the fast recombination of photocarriers, poor light absorption, and inefficient surface catalytic characteristics. In this study, defect-rich yellow TiO nanoparticles (abbreviated as D-TiO) with high surface area and significant absorption in the visible range were integrated with perovskite-like BiTiO to synthesize binary D-TiO/BiTiO nanocomposites. To overcome the problem of insufficient activity, we integrated the optimized D-TiO/BiTiO nanocomposite with plasmonic Bi nanoparticles.
View Article and Find Full Text PDFHerein, chitosan nanoparticle (CHIT) was used as a safe and biocompatible matrix to carry flaxseed ( L.) extract (FSE). The number of main features and bio-interface properties of CHIT-FSE were determined by SEM, DLS, FTIR, XRD, TGA, and zeta potential analyses and compared to those of chitosan lacking FSE.
View Article and Find Full Text PDFIn today's world, the development of an efficient water treatment strategy requires a prospective approach for the production of active and stable photocatalysts. The construction of heterojunctions with different semiconductors is a promising procedure for improving photocatalytic performances. In the present research, binary CeO/BiCrO photocatalysts were synthesized using a hydrothermal route preceded by a calcination step.
View Article and Find Full Text PDFToday, cleaning the environment using photocatalytic technology is one of the main research activities. In this study, carbon dots (C-dots) were anchored on oxygen-vacancy-enriched TiO quantum dots (QDs)/TiO oxygen vacancies (OVs) using a facile procedure. The resultant ternary TiO QDs/TiO OVs/C-dots photocatalysts with a quantum dot size of almost 4.
View Article and Find Full Text PDFThe oxygenation process of the catalyst surface, the incident-light harvesting capability, and facile recycling of utilized photocatalysts play key role in the outstanding photocatalytic performances. The typical existing photocatalysts in powder form have many drawbacks, such as difficult separation from the treated water, insufficient surface oxygenation, poor active surface area, low incident-light harvesting ability, and secondary pollution of the environment. A great number of scientific works introduced novel and fresh ideas related to designing floating photocatalytic systems by immobilizing highly active photocatalysts onto a floatable substrate.
View Article and Find Full Text PDFThis study is dedicated to the enhancement of electrospun polyacrylonitrile (PAN) nanofiber membranes for their application in membrane bioreactor (MBR) processes. The improvement is achieved through the incorporation of graphitic carbon nitride nanotubes/carbon dots (g-CN NT/CDs) and subsequent heat post-treatments at varying temperatures. Notably, the hot-pressing methodology effectively mitigates surface roughness and significantly reduces issues related to peeling during nanofiber experimentation.
View Article and Find Full Text PDFRecently, the degradation of antibiotics has attracted a lot of attention all over the world, because the accumulation of these recalcitrant compounds in the environment, and their entry into the food chain have severely affected on human health. Herein, oxygen vacancy-rich CeO was decorated with CuBiS nanoparticles to fabricate Z-scheme CeO/CuBiS photocatalysts with a simple procedure. Intriguingly, photocatalytic ability of CeO/CuBiS (30%) nanocomposite in the detoxification of tetracycline hydrochloride, cephalexin, azithromycin, and rhodamine B was elevated 31.
View Article and Find Full Text PDFVisible-light-assisted photocatalysis has been recognized as an effective solution to the degradation of various pollutants including antibiotics, pesticides, herbicides, microplastics, and organic dyes. Herein, an n-n heterojunction TiO/Fe-MOF photocatalyst is reported, designed via solvothermal synthesis route. TiO/Fe-MOF photocatalyst was characterized by XPS, BET, EIS, EDS, DRS, PL, FTIR, XRD, TEM, SEM and HRTEM techniques.
View Article and Find Full Text PDFNowadays, a promising material for NH production under mild and safe conditions using heterogeneous photocatalysts is very important. In this regard, BiO and NaBiS nanoparticles were combined with TiO quantum dots (QDs) through a facile hydrothermal process. The TiO QDs/BiO/NaBiS nanocomposites displayed excellent performance in the photofixation of nitrogen upon simulated sunlight.
View Article and Find Full Text PDFObjective: The integration of nanomaterials and herbal medicine has led to the design of new nanocomposites, which are therapeutically more effective. The purpose of this study was to prepare different zinc oxide (ZnO)-based nanoparticles (NPs) via extract based on gauze linen fibre and study its effects on wound healing.
Methods: The textural properties, morphology, thermal stability, purity, spectroscopic and phase structure of nanoparticles were investigated.
The electrocatalytic CO reduction reaction (CORR) and oxygen reduction reaction (ORR) are important approaches to realize energy conversion and sustainable development. However, sluggish reaction kinetics severely hinders the practical application of devices related to these reactions. N-doped graphene (NG) with unique properties exhibits great potential in catalyzing the CORR and ORR, which is attributed to the electron redistribution.
View Article and Find Full Text PDFPharmaceutical residual contaminants in aquatic ecosystems have caused severe risks to human health. Affordable, eco-friendly and effective photocatalysts to deal with these pollutants has become a hot topic in the scientific community. In this research, AgBiO nanoparticles were embedded on TiO to form n-n heterojunction through a facile hydrothermal method.
View Article and Find Full Text PDFThe utilization of plant essential oils (EOs) and nanomaterials due to their safety compared with synthetic chemicals has been considered in the management of plant diseases. In this study, the inhibitory effects of , , , and EOs in pure and Zinc Oxide (ZnO) nanocapsulated formulations were evaluated on the mycelial growth of to find a suitable alternative for synthetic chemicals. The crystal structure and morphological properties of the fabricated nanomaterials were assessed X-ray diffraction (XRD) and scanning electron microscope (SEM) analyses.
View Article and Find Full Text PDFHerein, TiO/NiCrO nanocomposites with p-n heterojunctions were synthesized via a refluxing method and used with peroxydisulfate (PDS) to produce extensive reactive radicals. Textural, optical, photoelectrochemical, structural, and morphological properties of the prepared materials were extensively investigated. After adding 1.
View Article and Find Full Text PDFThe development of an efficient, eco-friendly, and low-cost photocatalyst is essential for addressing environmental and energy crises. In this regard, we report novel plasmonic photocatalysts through adorning tubular g-CN with AgWO, Ag, and AgI nanoparticles (TGCN/Ag/AgWO/AgI) fabricated via a facile ultrasonic-irradiation procedure. The TGCN/Ag/AgWO/AgI (20%) nanocomposite presented the excellent photocatalytic ability for removal of tetracycline hydrochloride under visible light, which was almost 45.
View Article and Find Full Text PDFTiO/AgBr composites were synthesized by a simple ultrasonic strategy. Various instruments such as SEM, EDX, XRD, and FT-IR were exploited to investigate their characteristics. Antifungal activities of the as-obtained samples were assessed through the inactivation of in the spore suspension method and mycelial growth inhibition of , , and in the microdilution method.
View Article and Find Full Text PDFIn this study, first, graphitic carbon nitride was treated with hydrogen peroxide (abbreviated as HO-g-CN), then was used as a new hydrophilic nanomaterial in the fabrication of polyethersulfone (PES) mixed matrix membrane (MMM) for improving flux, protein and dye separation efficiency and antifouling properties. The HO-g-CN nanosheet was inserted into the doping solution to fabricate PES/HO-g-CN nanocomposite membrane with the non-solvent induced phase inversion procedure. The results of the SEM and AFM images and also porosity and contact angle analysis were indicated that the modified membranes with HO-g-CN had more porosity, smoother surface and more hydrophilic.
View Article and Find Full Text PDFChlorophenols are very important environmental pollutants, which have created huge problems for both aquatic and terrestrial lives. Therefore, their removal needs urgent, effective, and advanced technologies to safeguard our environment for future generation. This review encompasses a comprehensive study of the applications of chlorophenols, their hazardous effects and photocatalytic degradation under light illumination.
View Article and Find Full Text PDFWound healing has long been recognised as a major clinical challenge for which stablishing more effective wound therapies is necessary. The generation of metallic nanocomposites using biological compounds is emerging as a new promising strategy for this purpose. In this study, four metallic nanoparticles (NPs) with propolis extract (Ext) and one without propolis including ZnO/Ext, ZnO/Ag/Ext, ZnO/CuO/Ext, ZnO/Ag/CuO/Ext and ZnO/W were prepared by microwave method and assessed for their wound healing activity on excision experimental model of wounds in rats.
View Article and Find Full Text PDFThere is a renewed interest in the application of chitosan-based drug delivery systems over the last few years. In this study, the ionic gelation method was used to prepare chitosan-engaged tripolyphosphate ions, as the cross-linking molecule, (Chit-TPP) and concurrent loading of the biomolecules of the ethanolic extract of fennel, Foeniculum vulgare, seed (FEC@NBC). The samples were characterized by SEM, DLS, TGA, FTIR, XRD, GC-MS, and zeta potential, and their effects on the related hormonal and biochemical factors of the rats with polycystic ovarian syndrome (PCOS) were assessed.
View Article and Find Full Text PDFMicrobial pathogenic contaminations have world widely represented a serious health hazard to humans. Viruses, as a member of microbial contaminants, seriously threaten human health due to their high environmental resistance, having small sizes, and causing an extensive range of diseases. Therefore, selecting an appropriate technology to remove viral contaminants from the air, water, and foods is of prominent significance.
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