Activated carbons (ACs) were successfully prepared from rice husk by physical activation method. In the present study, ACs at different temperatures for a specified time interval of 1h in flow CO2 gas as an activating agent. The resulted product was analyzed various characterization techniques, such Brunauer, Emmett and Teller (BET), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Thermogravemetric analysis (TGA) X-Ray Diffractometry (XRD). maximum surface...

Ceramics-based capacitors with excellent energy storage characteristics, fast charging/discharge rate, and high efficiency have received significant attention. In this work, [Formula: see text][Formula: text]NbO 3 (NBN) ceramics were processed through solid-state sintering route. The investigated crystallized in a single perovskite phase. Dense microstructure, small average grain size ([Formula: text]0.92 text]m) is obtained for the ceramics. A dielectric constant text]1000 accompanied by...

Abstract Carbon dots are regarded as a brand new class of nanostructures in the carbonaceous family that have piqued curiosity researchers wide range bio applications. This work focuses on synthesis and characterization carbon dots, well their latent fingerprint detection antibacterial/antifungal capabilities. Highly luminous were prepared by optimizing simple hydrothermal carbonization settings at 180 °C for 12 h using lemon juice raw precursor. The resulting product was examined Fourier...

In this study, activated carbons (ACs) were produced from coal using potassium hydroxide as a chemical-activating agent. The preparation procedure composed of KOH impregnation followed by activation at 700°C–900°C under the nitrogen atmosphere for time duration 1 h. effects various temperatures and to ratios on porous structure products examined. resulted ACs also characterized techniques such Brunauer-Emmett-Teller (BET) analysis, Fourier-transform infrared spectroscopy (FTIR), scanning...

Rice husk (RH)-based activated carbons (ACs) were successfully manufactured and used as an adsorbent for the removal of methylene blue (MB) dye from polluted water. ACs created by impregnating RH char with sodium hydroxide then activating it 1 h in a nitrogen environment at various activation temperatures. The characteristics obtained confirmed using Brunauer-Emmett-Teller analysis, scanning electron microscopy, X-ray diffraction Fourier-transform infrared spectroscopy. prepared ACs' pore...

Powdered Saccharum arundinaceum leaves (PSAL) are an agricultural waste and abundantly available for use as a versatile, low-cost biosorbent removal of dyes from wastewater in manufacturing, printing, textile industries. In this study, the equilibrium adsorption kinetics methylene blue (MB) with PSAL were studied by performing batch experiments. The effects MB dye concentration, contact time, temperature, pH, adsorbent dose investigated. was enhanced alkaline media (pH 10). Langmuir isotherm...

Abstract In the present study, Sr 0.7 Bi 0.2 TiO 3 is mixed with [(K 0.5 )(Mg 1/3 Nb 2/3 )O ] to form a solid solution of [(1 − x )SBT– (KB)(MNb), = 0.02, 0.04, 0.06, 0.1]. From XRD results, it indicated that KB main substituent for SBT ceramic at A‐site. The breakdown strength (BDS) gradually increases an increase in doping content and achieves high value 280 kV/cm 0.06. addition, 0.94SBT–0.06(KB)(MNb) shows excellent temperature stability (−55 140°C), recoverable energy density ( W d )—2.6...

This study describes a novel eco-friendly method for the synthesis of rGo/ZnFe2O4. The synthesized material has been applied as an adsorbent and photo-catalyst removal methylene blue from aqueous solution. Graphene oxide was used precursor, FeCl3·6H2O ZnSO4 have anchored onto its framework through in situ reaction using ethanol green solvent at 40 °C. rGo/ZnFe2O4 confirmed x-ray diffraction Fourier transform infrared spectroscopy. Scanning electron microscopy (SEM) tunneling (TEM) revealed...

Zinc oxide nanoparticles (ZnO NPs) are highly important due to their high photocatalytic and antibacterial activities. ZnO NPs used as agents because they have significant properties, inexpensive, easy synthesize, surface area-to-volume ratio, non-toxic human cells, making them effective safe for medicinal applications. This study also concentrates on the preparation characterization of A simple chemical process was performed synthesize from an aqueous solution zinc salt (zinc chloride)...

Abstract Mg 0.95 Ni 0.05 Ti 0.98 Zr 0.02 O 3 and CaTiO were prepared separately using solid state reaction method. The effect of addition on the microwave dielectric properties was investigated to get low loss temperature stable ceramics in (1 – x)Mg -xCaTiO series. formed as major phase along with 2 5 that minor secondary for composition x = 0. Microwave ∈ r ~ 17.1, Q u f o 195,855 GHz τ –46.3 ppm/°C obtained positive value , tuned through zero 28.4, 108,775 3.1 attained 0.15 this study....

Graphene as a wonder material has received great attention and importance due to its fascinating properties. Here in this study, we also demonstrate simple two step process prepare graphene sheets (GSs) from the electrochemical exfoliated oxide (EE-GO) followed by microwave irradiation reduction. The properties structure of resulted product samples were studied Ultraviolet spectroscopy (UV), Fourier-transform infrared (FTIR), Thermogravimetric analysis ( TGA ), X-ray diffraction (XRD),...

The present study aims to improve the oxidation stability of wild apricot kernel oil biodiesel (WAKOB) by using natural antioxidants Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn).Biodiesel was synthesized at different catalyst (NaOH) concentrations, reaction temperatures, time intervals and methanol-to-oil molar ratios.Thermal oxidative measurements were carried out according EN14112 a Rancimet instrument.Our results showed high yield (97±1.092)at 65 o C in presence 1% NaOH (%w/w oil)...

During the arc discharge technique, a high direct current (DC) voltage powers have been employed by researchers for fabrication of carbon materials, while in this reported very low DC power is used to produce micro balls (CMBs).Wherein, CMBs were synthesized with minimum capacity (1.5 amperes) and (15 volts), their structural properties investigated.The electrochemical was performed between two graphite rods inserted an aqueous solution 1% acetonitrile.The prepared characterized using X-ray...

0.94(Bi0.5Na0.5)TiO3–0.06Ba(Zr0.1Ti0.9-xSnx)O3 (x = 0, 0.08, 0.1) (BNT-BZST) ceramics were synthesized via conventional mix oxide sintering route. X-ray diffraction, scanning electron microscopy, inductance (L), capacitance (C), and resistance (R) (LCR) measurement meter, d33 ferroelectric testes system used for determining the phase, microstructure, piezoelectric properties of samples. Dense microstructure with a decrease in average grain size an increase Sn content was observed....