Abstract Development of reliable and low-cost requirement for large-scale eco-friendly biogenic synthesis metallic nanoparticles is an important step industrial applications bionanotechnology. In the present study, mycosynthesis spherical nano-Ag (12.7 ± 0.8 nm) from extracellular filtrate local endophytic T. harzianum SYA.F4 strain which have interested mixed bioactive metabolites (alkaloids, flavonoids, tannins, phenols, nitrate reductase (320 nmol/hr/ml), carbohydrate (25 μg/μl) total...

Prospective involvement of metal oxide nanomaterials as a prominent agriculture practice for improving existing crop production directed the present investigation synthesizing ZnO and TiO2 an attempt to enhance transplants some Solanaceae crops. The morphological characterizations prepared indicated that hydrothermal synthesized was produced in nanorod structure with average aspect ratio 7. However, SEM TEM micrographs microwave evident it has nanoparticle diameter 43 nm. BET results...

Abstract This reported work aims to fabricate an eco-friendly Zr bio-based MOF and assessment its adsorption efficiency towards the cationic anionic dye pollutants including methylene blue (MB) direct red 81 (DR-81), respectively. Also, tendency for highly toxic heavy metal of hexavalent chromium (Cr(VI)) was compared with dyes. The performance bio-MOF showed that maximum monolayer capacities were recorded as 79.799 mg/g MB, 36.071 DR-81, 19.012 Cr(VI). Meanwhile, optimum dosage...

Nano-ZnO has been successfully implemented in particles, rods, and tubes nanostructures via sol-gel hydrothermal techniques. The variation of the different preparation parameters such as reaction temperature, time, stabilizer agents was optimized to attain morphological structures. influence microwave annealing process on ZnO crystallinity, surface area, structure monitored using XRD, BET, SEM techniques, respectively. antimicrobial activity zinc oxide produced nanotubes examined against...

Abstract The progress in industrialization everyday life has led to the continuous entry of several anthropogenic compounds, including dyes, into surrounding ecosystem causing arduous concerns for human health and biosphere. Therefore, microbial degradation dyes is considered an eco-efficient cost-competitive alternative physicochemical approaches. These degradative biosystems mainly depend on utilization nutritive co-substrates such as yeast extract peptone conjunction with glucose. Herein,...

Herein, respiratory nitrate reductases (NAR) were utilized in the biosynthesis of zero-valent iron (ZVI) graphene nanocomposite as a simultaneous reducing and capping agent, for first time, to efficiently adsorb methylene blue (MB) direct red-81 (DR-81). Under anaerobic conditions, greenly synthesized was incubated with precursor presence crude-NAR enzyme 48 h obtain ZVI composite followed by characterizing this using physiochemical analyses. Scanning transmission electron microscopy, energy...

Abstract The extensive use of antibiotics, including tetracycline (TC), has several negative impacts on ecosystems that need attention. In the present study, magnesium oxide nano-flowers (MgO NFs) were examined as an adsorbent and a degradation photocatalyst for TC elimination. MgO NFs characterized by XRD, UV-Vis, PL, SEM, TEM, FTIR. Optimization removal process included varying treatment time, initial pH, dosage, testing with different concentrations. highest efficiency (77.3%) was...

Effective removal of ciprofloxacin and tetracycline using fullerene/magnesium oxide nanocomposite.

The development of environmentally benign procedures for the synthesis metallic nanoparticles (NPs) is a vital aspect in bionanotechnology applications health care and environment. This study describes biosynthesis Ag, Co, Ni, Zn NPs by employing nanobiofactory Proteus mirabilis strain 10B. physicochemical characterization UV-visible spectroscopy, scanning electron microscopy-energy-dispersive X-ray microanalysis (EDX), diffraction analysis (XRD), transmission microscopy (TEM), dynamic light...

Novel magnetic cellulose acetate (CA) nanofibers were fabricated using an electrospinning process. Co-precipitated magnetite iron oxide nanoparticles immobilized onto CA at different weight ratios (0.2–2.5% wt/v) with a concentration of 15% (wt %), applied electric voltage 20 kV, feeding rate 1.5 ml/h and 7 cm distance between needle tip collector. The prepared characterized X-ray diffraction, transmission electron microscope, Fourier transform infrared spectrophotometer (FT-IR) vibrating...

As an innovative cation exchange material, nanozirconium tungestovanadate prepared using homogeneous precipitation technique was immobilized into alginate matrix and evaluated for cationic dye decolourization. Physicochemical properties of the composite material were examined to determine its crystallinity, morphology, ion capacity. The SEM TEM images zirconium identified that it in structure with spherical shape average diameter 22 nm. However, optical microscope image confirms good...

A novel nanozirconium tungstovanadate that was assigned as a cation exchanger synthetized using sol‐gel preparation technique. The response of synthesis parameter variation on the properties produced ion elucidated. reactant molar ratio, gelation temperature, and HCl concentration have been optimized to attain with high exchange capacity lead sorption. most proper prepared sample has chemically physically characterized different techniques. this 2.5 meq/g it recoded 96% effects processing...

Zirconium tungesto-vanadate cation exchange material was successfully architectured at open ended nanotubes morphological structure in the presence of polyvinyl alcohol as a stabilizing agent using microwave route. The ion capacity (IEC) recorded 4.8 meq/g about 640 m(2)/g for specific surface area. x-ray diffraction pattern implies its crystallinity. Both scanning and transmission electron microscopes identified average aspect ratio 6.5 hollow structure. posed 96.4 % cadmium decontamination...

It is preferable to use an organism produce more than one product at the same time. So, aim of this study was investigate ability bioflocculant‐producing Bacillus mojavensis strain 32A as a nanosilver synthesizer beside bioflocculant production. To achieve target, three media, nutrient broth, medium, and pure bioflocculant, were tested. Produced characterized by UV‐vis, XRD, TEM. In all cases, results demonstrated that UV‐vis showed peak ~420 nm corresponding plasmon absorbance nanosilver....

A temperature calibration procedure for a fixed-bed reactor has been reported to investigate its outcome on the performance of Fischer-Tropsch Synthesis (FTS) utilizing metal-organic framework (MOF)-derived iron catalyst. It established that catalyst activation and activity are sensitive reaction temperature. Elevated temperatures lead deposition CO as carbon expressed in misleading balance conversion (XCO) values. However, no systematic study FTS was found literature. In this work, probe...