Synthesizing Nano Silica Nanoparticles from
Barley Grain Waste: Effect of Temperature
on Mechanical Properties

Akhayere, Evidence; Kavaz, Doğa; Vaseashta, Ashok

doi:10.15244/pjoes/91078

Cited by 34 publications

(15 citation statements)

References 18 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The bending vibration at 3452.34 and 1633.59 cm -1 were due to the H-O-H, stretching of different hydroxyl groups of adsorbed water molecules on the silica surface which reflected the high purity of precipitated Nanosilica and give adsorption characteristic of particles (6). The band peaks between 4000-400 cm -1 are the main indicator of the silica material, which represents the successful production of silica nanoparticles from rice husk (19).…”

Section: Figure 6 Afm Analysis A) Particles Size Distribution B) Scamentioning

confidence: 99%

Preparing Nanosilica Particles from Rice Husk Using Precipitation Method

Farhan

Ebrahim

2021

Baghdad Sci.J

View full text Add to dashboard Cite

Nanosilica was extracted from rice husk, which was locally collected from the Iraqi mill at Al-Mishikhab district in Najaf Governorate, Iraq. The precipitation method was used to prepared Nanosilica powder from rice husk ash, after treating it thermally at 700°C, followed by dissolving the silica in the alkaline solution and getting a sodium silicate solution. Two samples of the final solution were collected to study the effect of filtration on the purity of the sample by X-ray fluorescence spectrometry (XRF). The result shows that the filtered samples have purity above 98%, while the non-filtered sample purity was around 96 %. The structure analysis investigated by the X-ray diffraction (XRD), found that the Nanosilica powder has an amorphous structure in nature. Also, it shows a broad peak at (2θ = 22.25°-22.55°). The particle size distribution was determined by Atomic force microscope (AFM), the results gave that the average diameter equals 52.83 nm and dimension range in 30-75 nm, while B.E.T. analysis confirms a high surface area around 618 m 2 /g. FT-IR Spectra experimental data showed the presence of hydrogen-bonded silanol group (Si-O-H) and siloxane group (Si-O-Si) which proved the high purity of Nanosilica particles.

show abstract

Section: Figure 6 Afm Analysis A) Particles Size Distribution B) Scamentioning

confidence: 99%

Preparing Nanosilica Particles from Rice Husk Using Precipitation Method

Farhan

Ebrahim

2021

Baghdad Sci.J

View full text Add to dashboard Cite

show abstract

“…The highest peak of the nano-silica particle was observed at 2θ = 24.8 • . According to the XRD results, it is valid to say that the method of synthesis of nano-silica from barley resulted in particles with significantly low impurities [9,16]. Lastly, it can be seen from the XRD result that there were no substantial changes observed in case of the peaks for magnetic nano silica, as shown in Figure 4a-A, although a new peak was identified at 2θ = 20-30 • , which indicates the presence of amorphous silica.…”

Section: Characterization Results Of Magnetic Silica Nanoparticlesmentioning

confidence: 95%

“…The synthesis procedure for producing nano-silica, as shown in Figure 1, is also described elsewhere by Akhayere et.al. [9]. The resulting nano silica powder was used for the preparation of nano silica solution.…”

Section: Synthesis Of Nanoparticlesmentioning

confidence: 99%

“…As a grass plant, there is close contact between the plant and the soil, which causes a high silicon presence in the plant [8]. In research reported by Akhayere et al [9] and Azizi et al [10], X-ray fluorescence (XRF) results showed that silicon based compounds were abundantly present in barley, which makes it a good raw material for the production of silicon-related substances. To produce silica and other silicon related materials from conventional sources, one would require high amounts of energy due to the temperature requirements, ranging from ~1300 • C upwards.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Magnetic Nano Silica Synthesis Using Barley Husk Waste for Removing Petroleum from Polluted Water for Environmental Sustainability

2020

Self Cite

View full text Add to dashboard Cite

Water contamination by petroleum and its byproducts presents a major challenge worldwide. It is critical that sustainable treatment methods be employed for the removal of such contaminants from polluted water. For this investigation, magnetic nano silica (M-NS) was synthesized using agricultural waste from barley husk using a two-step process that is environmentally friendly and uses green chemistry synthesis. The barley husk waste was used as a precursor for the synthesis of nano-silica following a low energy and sustainable method of acid reflux and heat treatment. Nano-silica was then used for the synthesis of M-NS, with the addition of a magnetic solution of Fe3O4 nanoparticles. The magnetic nano-silica particles were characterized using scanning electron microscopy (SEM), Fourier transform infrared (FTIR), Zeta potential analysis (ZETA) and X-Ray Diffraction (XRD). Magnetic nano-silica particles were observed to have an average diameter of 162 nm and appeared to be hydrophobic, with a large surface area of ~120 m2/gm. Due to these characteristics, magnetic nano-silica was used as an adsorbent for the removal of petrol contaminants from water. The experimental procedure showed that only 0.6 gm. of M-NS was used on 40 mg/L concentration of petroleum and the experiments recorded a high uptake efficiency of 85%. The sorption was shown to be an effective process since a high amount of petroleum was removed. The study further demonstrates that as the amount of sorbent is increased, the sorption capacity also increases until an equilibrium is reached. The results of this study establish that synthesis of M-NS, using environmentally sustainable processes, has the required characteristics to serve as sorbent for petroleum and its byproducts from contaminated water, thus enhancing environmental sustainability.

show abstract

“…Akhayere et al [12] reported the synthesis of nanosilica from barley grass waste-an environmental burden-using varying temperatures during preparation. The temperatures used during the investigation were 400, 500, 600, and 700 • C, studying its effects on the mechanical properties of the nanosilica for use in environmentally friendly applications.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Silica Particles Using Ultrasonic Spray Pyrolysis Method

Stopić

Wenz

Volkov‐Husović

et al. 2021

Metals

View full text Add to dashboard Cite

Silica has sparked strong interest in hydrometallurgy, catalysis, the cement industry, and paper coating. The synthesis of silica particles was performed at 900 °C using the ultrasonic spray pyrolysis (USP) method. Ideally, spherical particles are obtained in one horizontal reactor from an aerosol. The controlled synthesis of submicron particles of silica was reached by changing the concentration of precursor solution. The experimentally obtained particles were compared with theoretically calculated values of silica particles. The characterization was performed using a scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS). X-ray diffraction, frequently abbreviated as XRD, was used to analyze the structure of obtained materials. The obtained silica by ultrasonic spray pyrolysis had an amorphous structure. In comparison to other methods such as sol–gel, acidic treatment, thermal decomposition, stirred bead milling, and high-pressure carbonation, the advantage of the ultrasonic spray method for preparation of nanosized silica controlled morphology is the simplicity of setting up individual process segments and changing their configuration, one-step continuous synthesis, and the possibility of synthesizing nanoparticles from various precursors.

show abstract

Synthesizing Nano Silica Nanoparticles from Barley Grain Waste: Effect of Temperature on Mechanical Properties

Cited by 34 publications

References 18 publications

Preparing Nanosilica Particles from Rice Husk Using Precipitation Method

Preparing Nanosilica Particles from Rice Husk Using Precipitation Method

Novel Magnetic Nano Silica Synthesis Using Barley Husk Waste for Removing Petroleum from Polluted Water for Environmental Sustainability

Synthesis of Silica Particles Using Ultrasonic Spray Pyrolysis Method

Contact Info

Product

Resources

About