Log in

Relevant bibliographies by topics / Fly ash nanoparticles / Journal articles

To see the other types of publications on this topic, follow the link: Fly ash nanoparticles.

Journal articles on the topic 'Fly ash nanoparticles'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Fly ash nanoparticles.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Markov, Pavel, Georgi Chernev, Diana Nintianova, Nadezhda Kazakova, and Hristo Karakostov. "SYNTHESIS AND CHARACTERIZATION OF NANOPARTICLES FROM COAL FLY ASH." Journal of Chemical Technology and Metallurgy 59, no. 6 (2024): 1437–41. http://dx.doi.org/10.59957/jctm.v59.i6.2024.20.

Full text

Abstract:

In this study, amorphous nanoparticles were extracted from fly ash using a sol-gel method. The obtained nanoparticles were characterized using XRF spectroscopy, XRD, FT-IR and TEM. The XRD curves show the presence of both crystalline and amorphous phases. FT-IR analysis indicated the presence of silanol and siloxane groups. Upon analysis, the primary nanoparticles were found to exhibit a roughly spherical shape with an average size of approximately 65 nm. The findings of this study demonstrate the feasibility of applying the sol-gel method to synthesize nanoparticles derived from coal fly ash

APA, Harvard, Vancouver, ISO, and other styles

2

Kirithika, M., and V. K. Stalin. "Study on the Strength Behavior of Soil with Nano Fly Ash and Nano Cement." Advanced Science Letters 24, no. 8 (2018): 5633–35. http://dx.doi.org/10.1166/asl.2018.12165.

Full text

Abstract:

Nanotechnology is the science that deals with the particles which are less than 100 nm. The size of the nanoparticles plays a crucial role in behavior of soil exhibiting different properties. Use of nanoparticles in stabilization influences shear strength, dry density of the soil and makes more reactive to soil because of its high specific surface area. In this investigation, an attempt is made to investigate the influence of ball milled nano fly ash and nano cement particles in the improvement of soil. Different combinations of percentage were selected in the range of non-nano fly ash (10%, 2

APA, Harvard, Vancouver, ISO, and other styles

3

WETCHAKUN, N., and S. PHANICHPHANT. "SYNTHESIS AND CHARACTERIZATION OF TITANIUM DIOXIDE NANOPARTICLES COATED ON FLY ASH." International Journal of Nanoscience 05, no. 04n05 (2006): 657–62. http://dx.doi.org/10.1142/s0219581x06004942.

Full text

Abstract:

Titanium dioxide ( TiO 2) nanoparticles in the anatase phase were coated on fly ash by using a sol–gel method. The TiO 2 nanoparticles coated on fly ash were produced from titanium tetraisopropoxide ( Ti ( OPr i )4 3.3 M ) in absolute ethanol, and the fly ash was added into this alcoholic solution. The ratio of TiO 2 nanoparticles to fly ash in the coating process was 1:10 by weight. The ethanolic solution was loaded into a pouch type cellophane membrane and placed for 1 h in a clear solution which containing 1:1 (v/v) ratio of absolute ethanol and distilled water with 0.5–1% concentrated (25%

APA, Harvard, Vancouver, ISO, and other styles

4

Kumari Vishnu Prabhakar, Shalini. "Silica Nanoparticles from Sugarcane Bagasse Fly Ash: Converting Waste to Wealth." International Journal of Science and Research (IJSR) 12, no. 4 (2023): 1552–58. http://dx.doi.org/10.21275/sr23425113104.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Robiansyah, Yohandri Bow, and Tresna Dewi. "Synthesis and Characterization of Silicon Nanoparticles from Coal Fly Ash Using Ultrasonication as a Battery Anode." International Journal of Research in Vocational Studies (IJRVOCAS) 4, no. 2 (2024): 23–32. http://dx.doi.org/10.53893/ijrvocas.v4i2.282.

Full text

Abstract:

Fly ash, a byproduct of coal combustion, is rich in silica, alumina, and other minerals, making it a valuable resource for extracting high-purity silicon. The synthesis of silicon nanoparticles from coal fly ash involves several critical steps, including the extraction of silica (SiO2) via the sol-gel method, reduction of silica to silicon using the metallothermic method, and subsequent ultrasonication to achieve nanoscale particles. Studies have shown that fly ash can contain up to 49.21% silica, which can be further purified to 93.52% via chemical extraction methods such as acid leaching and

APA, Harvard, Vancouver, ISO, and other styles

6

Yadav, Virendra Kumar, and Madhusudan Hiraman Fulekar. "Advances in Methods for Recovery of Ferrous, Alumina, and Silica Nanoparticles from Fly Ash Waste." Ceramics 3, no. 3 (2020): 384–420. http://dx.doi.org/10.3390/ceramics3030034.

Full text

Abstract:

Fly ash or coal fly ash causes major global pollution in the form of solid waste and is classified as a “hazardous waste”, which is a by-product of thermal power plants produced during electricity production. Si, Al, Fe Ca, and Mg alone form more than 85% of the chemical compounds and glasses of most fly ashes. Fly ash has a chemical composition of 70–90%, as well as glasses of ferrous, alumina, silica, and CaO. Therefore, fly ash could act as a reliable and alternative source for ferrous, alumina, and silica. The ferrous fractions can be recovered by a simple magnetic separation method, while

APA, Harvard, Vancouver, ISO, and other styles

7

Fan, Huiming, Helong Song, Yuqing Rao, et al. "Effect of calcium hydroxide concentration and stirring rate on the crystallization of the calcium carbonate on the surface of fly ash." BioResources 13, no. 3 (2018): 7017–25. http://dx.doi.org/10.15376/biores.13.3.7017-7025.

Full text

Abstract:

To improve the whiteness of fly ash, fly ash was prepared using calcium hydroxide, water, and carbon dioxide as the reaction system to coat calcium carbonate crystals on the surface of the fly ash. This study investigated the effect of the calcium hydroxide content and stirring rate on the crystallization of the calcium carbonate on the fly ash surface. The results showed that the calcium carbonate nanoparticles prepared with a 7% calcium hydroxide concentration and stirring rate of 500 rpm were coated on the surface of the fly ash, and the whiteness of the modified fly ash reached a maximum o

APA, Harvard, Vancouver, ISO, and other styles

8

Khan, Masudulla, Azhar U. Khan, Il Soo Moon, et al. "Synthesis of biogenic silver nanoparticles from the seed coat waste of pistachio (Pistacia vera) and their effect on the growth of eggplant." Nanotechnology Reviews 10, no. 1 (2021): 1789–800. http://dx.doi.org/10.1515/ntrev-2021-0107.

Full text

Abstract:

Abstract Herein, the synthesis of silver nanoparticles using extracts of pistachio seed coat waste is investigated. The surface plasmon resonance peak at 443 nm was observed in the nanoparticles by using ultraviolet-visible spectroscopy (UV-Vis). To identify potential biomolecules involved in the bio-reduction of silver ions, Fourier-transform infrared spectroscopy (FTIR) was used. Scanning and transmission electron microscopy (SEM and TEM) show irregular shapes with an average size of ∼20 nm. The active surface determined by Brunauer, Emmett, and Teller analysis was 22 m2/g. The effect of sil

APA, Harvard, Vancouver, ISO, and other styles

9

Visa, Maria, Mihaela Cosnita, Macedon Moldovan, Cosmina Andreea Marin, and Maria Mihaly. "Fly Ash Waste Recycling by Pt/TiO2 Incorporation for Industrial Dye Removal." International Journal of Environmental Research and Public Health 18, no. 8 (2021): 3887. http://dx.doi.org/10.3390/ijerph18083887.

Full text

Abstract:

New materials are obtained by transforming fly ash wastes into a valuable composite, with tandem adsorption and photodegradation properties. Mild hydrothermal synthesis, from titanium dioxide, platinum nanoparticles and zeolite materials obtained from a waste, fly ash, as support, was involved in the composite preparation. The platinum nanoparticles extended the photocatalytic activity of the composite in visible range (Eg = 2.1 eV). The efficiency of tandem adsorption and photocatalytic activity of the new composite were determined to be 25% for Bemacid Blau and 43.89% for Bemacid Rot after 3

APA, Harvard, Vancouver, ISO, and other styles

10

Alam, Javed, Virendra Kumar Yadav, Krishna Kumar Yadav, et al. "Recent Advances in Methods for the Recovery of Carbon Nanominerals and Polyaromatic Hydrocarbons from Coal Fly Ash and Their Emerging Applications." Crystals 11, no. 2 (2021): 88. http://dx.doi.org/10.3390/cryst11020088.

Full text

Abstract:

Coal fly ash is found to be one of the key pollutants worldwide due to its toxic heavy metal content. However, due to advancements in technology, coal fly ash has gained importance in various emerging fields. They are rich sources of carbonaceous particles which remain unburnt during burning of various coals in thermal power plants (TPPs). Various carbonaceous nanoparticles in the form of fullerenes, soot, and carbon nanotubes could be recovered from coal fly ash by applying trending techniques. Moreover, coal fly ash is comprised of rich sources of organic carbons such as polycyclic and polya

APA, Harvard, Vancouver, ISO, and other styles

11

Kirgiz, Mehmet Serkan. "Advancements in Properties of Cements Containing Pulverised Fly Ash and Nanomaterials by Blending and Ultrasonication Method (Review- Part II)." Nano Hybrids and Composites 24 (February 2019): 37–44. http://dx.doi.org/10.4028/www.scientific.net/nhc.24.37.

Full text

Abstract:

The second part of this review paper will explain Hydration properties of Portland pulverised fly ash cement section, Effect of nanomaterial on setting–time section, Effect of nanomaterial on heat of hydration section, Strength gain mechanisms for hardened Portland pulverised fly ash cement paste and mortar section, Effect of nanomaterial on compressive strength section, Effect of nanomaterial on flexural strength (Bending) section, and Conclusion section. Experiments reported include the setting–times, the heat of hydration, the compressive strength gain, and the flexural strength gain in the

APA, Harvard, Vancouver, ISO, and other styles

12

Kongsat, Pantharee, Sakprayut Sinthupinyo, Edgar A. O’Rear, and Thirawudh Pongprayoon. "Effect of Morphologically Controlled Hematite Nanoparticles on the Properties of Fly Ash Blended Cement." Nanomaterials 11, no. 4 (2021): 1003. http://dx.doi.org/10.3390/nano11041003.

Full text

Abstract:

Several types of hematite nanoparticles (α-Fe2O3) have been investigated for their effects on the structure and properties of fly ash (FA) blended cement. All synthesized nanoparticles were found to be of spherical shape, but of different particle sizes ranging from 10 to 195 nm depending on the surfactant used in their preparation. The cement hydration with time showed 1.0% α-Fe2O3 nanoparticles are effective accelerators for FA blended cement. Moreover, adding α-Fe2O3 nanoparticles in FA blended cement enhanced the compressive strength and workability of cement. Nanoparticle size and size di

APA, Harvard, Vancouver, ISO, and other styles

13

Lee, Daeyang, Heechan Cho, Joonheon Lee, Chun Huh, and Kishore Mohanty. "Fly ash nanoparticles as a CO2 foam stabilizer." Powder Technology 283 (October 2015): 77–84. http://dx.doi.org/10.1016/j.powtec.2015.05.010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Guo, Feng, Jie He, Patrick A. Johnson, and Saman A. Aryana. "Stabilization of CO2foam using by-product fly ash and recyclable iron oxide nanoparticles to improve carbon utilization in EOR processes." Sustainable Energy & Fuels 1, no. 4 (2017): 814–22. http://dx.doi.org/10.1039/c7se00098g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Algarni, Abdullah, Numan Salah, Mostefa Bourchak, Asim Jilani, Ahmed Alshahrie, and Mahmoud Nadim Nahas. "Polymer composite reinforced with nanoparticles produced from graphitic carbon-rich fly ash." Journal of Composite Materials 51, no. 18 (2016): 2675–85. http://dx.doi.org/10.1177/0021998316673891.

Full text

Abstract:

Carbon nanotubes and graphene are considered effective reinforcement materials for various polymers because of their superior properties. However, they are expensive and difficult to separate and incorporate individually into matrix systems because of their tendency to exist in clustered form. In this work, carbon nanoparticles produced from graphitic carbon-rich fly ash by high-energy ball milling are evaluated as a reinforcement in a high-performance epoxy matrix system. They were used in various weight fractions ranging from 0.1 to 2 wt.%. The obtained carbon nanoparticles have an average p

APA, Harvard, Vancouver, ISO, and other styles

16

Yadav, Virendra Kumar, Daoud Ali, Samreen Heena Khan, et al. "Synthesis and Characterization of Amorphous Iron Oxide Nanoparticles by the Sonochemical Method and Their Application for the Remediation of Heavy Metals from Wastewater." Nanomaterials 10, no. 8 (2020): 1551. http://dx.doi.org/10.3390/nano10081551.

Full text

Abstract:

Nanoparticles have gained huge attention in the last decade due to their applications in electronics, medicine, and environmental clean-up. Iron oxide nanoparticles (IONPs) are widely used for the wastewater treatment due to their recyclable nature and easy manipulation by an external magnetic field. Here, in the present research work, iron oxide nanoparticles were synthesized by the sonochemical method by using precursors of ferrous sulfate and ferric chloride at 70 °C for one hour in an ultrasonicator. The synthesized iron oxide nanoparticles were characterized by diffraction light scatterin

APA, Harvard, Vancouver, ISO, and other styles

17

Kirgiz, Mehmet Serkan. "Advancements in Properties of Cement Containing Pulverised Fly Ash and Nanomaterials by Blending and Ultrasonication Method (Review - Part I)." Nano Hybrids and Composites 19 (February 2018): 1–11. http://dx.doi.org/10.4028/www.scientific.net/nhc.19.1.

Full text

Abstract:

This review research aims to discuss the results obtained researches on cement containing pure cement, pulverised fly ash, and nanoparticles, in order for eliminating negative side effects underlie the substitution of by–products for pure Portland cement. Nanoparticles (NP) used in these researches are nanoTiO2, nanoSiO2, nanoCaCO3, fibers of carbon nano tube (CNT), nanolimestone (nanoCaCO3), nanoZrO2, nanoclays, and nanometakaolin (nMK) for improving properties of cement systems. Published manuscripts explains two methods regarding on the usage of nanoparticles for cement system: blending and

APA, Harvard, Vancouver, ISO, and other styles

18

Salman, Awham Jumah, Zahraa Fakhri Jawad, Rusul Jaber Ghayyib, Fadhaa Atheer Kareem, and Zainab Al-khafaji. "Verification of Utilizing Nanowaste (Glass Waste and Fly Ash) as an Alternative to Nanosilica in Epoxy." Energies 15, no. 18 (2022): 6808. http://dx.doi.org/10.3390/en15186808.

Full text

Abstract:

Silica is considered one of the most prevalent components in the Earth’s shell and is synthesized for use in technological applications. Nevertheless, new methods for finding a better, cheaper, and more ecologically friendly supply of silica with less energy consumption are unavoidable. This study investigates whether nanopowders made from waste with a great silica amount (fly ash and glass) can be utilized as fillers in an epoxy glue to enhance its characteristics. Four different contents (5, 10, 15, and 20 wt%) of nano–fly ash, nanoglass, and nanosilica powder were introduced into the sample

APA, Harvard, Vancouver, ISO, and other styles

19

Liu, Jiwei, Min Dai, Shaoxian Song, and Changsheng Peng. "Removal of Pb(ii) and Cr(vi) from aqueous solutions using the prepared porous adsorbent-supported Fe/Ni nanoparticles." RSC Advances 8, no. 56 (2018): 32063–72. http://dx.doi.org/10.1039/c8ra04324h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Jalal, Mostafa. "Influence of class F fly ash and silica nano-micro powder on water permeability and thermal properties of high performance cementitious composites." Science and Engineering of Composite Materials 20, no. 1 (2013): 41–46. http://dx.doi.org/10.1515/secm-2012-0054.

Full text

Abstract:

AbstractThis paper investigates the influence of class F fly ash and silica nano-micro powder on water permeability and thermal properties of high performance concrete (HPC) as one of the most important cementitious composites. For this purpose, a fraction of Portland cement was replaced by silica fume, silica nanoparticles, blend of silica fume and silica nanoparticles and three percentages of fly ash as 10%, 2%, 10+2% and 5%, 10%, 15%, respectively. Specimens were prepared with two binder contents as 400 and 500 kg/m3. Thermal properties were investigated via thermogravimetric analysis (TGA)

APA, Harvard, Vancouver, ISO, and other styles

21

Kumari, Kalpana, R. Preetha, D. Ramachandran, et al. "Nanoparticles for enhancing mechanical properties of fly ash concrete." Materials Today: Proceedings 3, no. 6 (2016): 2387–93. http://dx.doi.org/10.1016/j.matpr.2016.04.152.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Khalid, Khatib, Lahmyed Loubna, and El Azhari Mohamed. "Synthesis, Characterization, and Application of Geopolymer/TiO2 Nanoparticles Composite for Efficient Removal of Cu(II) and Cd(II) Ions from Aqueous Media." Minerals 12, no. 11 (2022): 1445. http://dx.doi.org/10.3390/min12111445.

Full text

Abstract:

The use of fly ash wastes as inexpensive sorbents, mostly for heavy metal cations, is one method of recycling the millions of tons of fly ash waste produced each year. In this paper, a fly ash-based geopolymer was used as an adsorbent for Cu2+ and Cd2+ from an aqueous solution. To improve geopolymer sorption efficiency, fly ash was modified by incorporating titanium oxide (TiO2) nanoparticles that were synthesized hydrothermally and annealed at a temperature of 500 °C. The adsorbents were characterized before and after adsorption by X-ray diffraction (XRD), Fourier transform infrared (FT-IR),

APA, Harvard, Vancouver, ISO, and other styles

23

Yadav, Virendra Kumar, Abdelfattah Amari, Amel Gacem, Noureddine Elboughdiri, Lienda Bashier Eltayeb, and M. H. Fulekar. "Treatment of Fly-Ash-Contaminated Wastewater Loaded with Heavy Metals by Using Fly-Ash-Synthesized Iron Oxide Nanoparticles." Water 15, no. 5 (2023): 908. http://dx.doi.org/10.3390/w15050908.

Full text

Abstract:

Every year, a huge amount of water is polluted by various sources, out of which coal fly ash (CFA) is one of the major pollutants. CFA has a large number of toxic metals, which reaches water bodies by coming in contact with water or rain. Due to heavy-metal contamination, water becomes unfit for drinking for human beings, which in long term may cause several disorders. Thus, iron oxide nanoparticles (IONPs) recovered from waste, such as CFA, could be the most promising material for treating wastewater, due to their low-cost, recyclable nature and magnetic property. The synthesis of IONPs from

APA, Harvard, Vancouver, ISO, and other styles

24

R. Porselvan, T. S. Lakshmi, and M. Tholkapiyan. "Optimization of Bacterial Self-healing Concrete Using Bacillus licheniformis with Micro Silica and Fly Ash Aggregates." Journal of Environmental Nanotechnology 14, no. 1 (2025): 334–46. https://doi.org/10.13074/jent.2025.03.2441045.

Full text

Abstract:

This research investigates the application of bacterial self-healing materials for resilient concrete using a cement matrix. It focuses on incorporating Bacillus licheniformis (B. licheniformis), a gram-positive microorganism, to repair structural and non-structural cracks at the nano-scale. The study addresses the challenge of microbial sustainability in concrete mixtures by employing an efficient immobilization technique using iron oxide nanoparticles. These nanoparticles were characterized using XRD and FTIR techniques. The effects of immobilized B. licheniformis on the concrete's strength

APA, Harvard, Vancouver, ISO, and other styles

25

Wang, Michelle, James Wang, H. C. Wang, Hsin-Liang Huang, and H. L. Liu. "Sensing of Zinc-Containing Nanopollutants with an Ionic Liquid." Journal of Nanomaterials 2010 (2010): 1–5. http://dx.doi.org/10.1155/2010/309207.

Full text

Abstract:

The rapid maturing of nanotechnology and its wide range of applications not bring benefits only, so the downsides are worth noting. Nanopollutants, generally undetectable, are often found as byproducts involved in various chemical or physical reactions. Many nanopollutants are concerned and suspected of causing negative impact on human health due to their unpredictable existence in the environment. Unlike the traditional sensing systems which can detect select gaseous molecules, effective nanoparticle sensing methods are still lacking in the literature. In this paper, sensing of zinc-containin

APA, Harvard, Vancouver, ISO, and other styles

26

Eftekhari, Ali Akbar, Rumen Krastev, and Rouhi Farajzadeh. "Foam Stabilized by Fly Ash Nanoparticles for Enhancing Oil Recovery." Industrial & Engineering Chemistry Research 54, no. 50 (2015): 12482–91. http://dx.doi.org/10.1021/acs.iecr.5b03955.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Liang, Guangbing, Yanhong Li, Chun Yang, et al. "Production of biosilica nanoparticles from biomass power plant fly ash." Waste Management 105 (March 2020): 8–17. http://dx.doi.org/10.1016/j.wasman.2020.01.033.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Ramachandran, D., Sudha Uthaman, and Vinita Vishwakarma. "Studies of carbonation process in nanoparticles modified fly ash concrete." Construction and Building Materials 252 (August 2020): 119127. http://dx.doi.org/10.1016/j.conbuildmat.2020.119127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Virendra, Kumar Yadav, and H. Fulekar M. "Remediation of selected heavy metals (Pb, Cd) from fly ash using magnetite nanoparticles." Journal of Indian Chemical Society Vol. 96, Jan 2019 (2019): 203–6. https://doi.org/10.5281/zenodo.5653669.

Full text

Abstract:

School of Nanosciences, Central University of Gujarat, Gandhinagar-382 030, Gujarat, India <em>E-mail:</em> yadava94@gmail.com School of Environment & Sustainable Development, Central University of Gujarat, Gandhinagar-382 030, Gujarat, India <em>Manuscript received online 29 August 2018, accepted 10 October 2018</em> Magnetite nanoparticles has immense potential for the environmental remediation of inorganic contaminants like heavy metals. In the present research work the commercial magnetite nanoparticles were procured, characterized and it’s efficiency was analyzed for the removal

APA, Harvard, Vancouver, ISO, and other styles

30

Klimov, D. S., and M. S. Rozman. "Prospects for the effective use of fly ash in the technological processes of oil and gas production." SOCAR Proceedings, SI2 (December 30, 2023): 143–57. http://dx.doi.org/10.5510/ogp2023si200905.

Full text

Abstract:

The problem of efficient use of coal fly ash (CFA) is a global environmental problem that requires urgent attention and immediate action to address it. Research shows that huge amounts of CFA are generated every year, but only 25% of the waste is recycled. To overcome this alarming situation, there is a need to focus on increasing the use of coal ash in various industries. The promising uses of coal ash in construction, electronics, resource recycling, wastewater treatment, agriculture and other industries require further research. Of particular interest is the use of coal ash in industrial pr

APA, Harvard, Vancouver, ISO, and other styles

31

Maity, Niladri, Anupam Sahoo, Rajkumar Boddhula, Saurav Chatterjee, Srikanta Patra, and Binod Bihari Panda. "Fly ash supported Pd–Ag bimetallic nanoparticles exhibiting a synergistic catalytic effect for the reduction of nitrophenol." Dalton Transactions 49, no. 31 (2020): 11019–26. http://dx.doi.org/10.1039/d0dt01899f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Neckel, Alcindo, Diana Pinto, Bashir Adelodun, and Guilherme L. Dotto. "An Analysis of Nanoparticles Derived from Coal Fly Ash Incorporated into Concrete." Sustainability 14, no. 7 (2022): 3943. http://dx.doi.org/10.3390/su14073943.

Full text

Abstract:

The environmental benefits of incorporating coal fly ash (CFA) into the concrete manufacturing process as a partial substitute for Portland cement are well known. What is less studied is the potential release of CFA derived nanomineral and amorphous nanoparticles during this process of incorporation. A thorough understanding of this makes it possible to understand the risks of exposure to particulates that are harmful to human health when CFA is mixed into concrete. The general objective of this study is to analyze airborne particulates released when CFA is mixed into concrete at the point of

APA, Harvard, Vancouver, ISO, and other styles

33

Alterary, Seham S., Musarat Amina, and Maha F. El-Tohamy. "Biogenic sunflower oil-chitosan decorated fly ash nanocomposite film using white shrimp shell waste: Antibacterial and immunomodulatory potential." PLOS ONE 18, no. 4 (2023): e0282742. http://dx.doi.org/10.1371/journal.pone.0282742.

Full text

Abstract:

A new sunflower oil-chitosan decorated fly ash (sunflower oil/FA-CSNPs) bionanocomposite film was synthesized using the extract of Litopenaeus vannamei (White shrimp) and evaluated as an antibacterial and immunomodulatory agent. Fly ash-chitosan nanoparticles were produced by using chitosan (CS) isolated from white shrimp extract, glacial acetic acid and sodium tripolyphosphate solution as cross-linkage. The ultrafine polymeric sunflower oil-CS film was fabricated by treating fly ash-chitosan nanoparticles with sunflower oil in glacial acetic acid under continuous stirring for 24 h. The nanost

APA, Harvard, Vancouver, ISO, and other styles

34

Imoisili, Patrick Ehi, Emeka Charles Nwanna, and Tien-Chien Jen. "Facile Preparation and Characterization of Silica Nanoparticles from South Africa Fly Ash Using a Sol–Gel Hydrothermal Method." Processes 10, no. 11 (2022): 2440. http://dx.doi.org/10.3390/pr10112440.

Full text

Abstract:

Silica nanoparticles (SNPs) consist of several applications which include lightweight aggregates, energy storage, and drug delivery. Nevertheless, the silica reagents used in SNP synthesis are both costly and hazardous. As a result, it is critical to look for other sources of silica. For this research, a simple sol–gel hydrothermal approach is used to make SNPs from South African fly ash (SAFA). SAFA is classified as fly ash class F according to X-ray fluorescence (XRF) analysis. The wide-angle X-ray diffraction (XRD) pattern reveals the structural composition of SAFA and the amorphous phase o

APA, Harvard, Vancouver, ISO, and other styles

35

Yadav, Virendra Kumar, Abdelfattah Amari, Shivraj Gangadhar Wanale, Haitham Osman, and M. H. Fulekar. "Synthesis of Floral-Shaped Nanosilica from Coal Fly Ash and Its Application for the Remediation of Heavy Metals from Fly Ash Aqueous Solutions." Sustainability 15, no. 3 (2023): 2612. http://dx.doi.org/10.3390/su15032612.

Full text

Abstract:

Every year a large amount of coal fly ash (CFA) is generated and dumped in fly ash ponds. Fly ash has numerous toxic heavy metals, which leads to water pollution due to the percolation of these heavy metals. Heavy metal toxicity has become a major issue for the whole globe. Moreover, CFA has several value-added minerals, such as silica, alumina, and ferrous in large amounts. Therefore, the synthesis of silica nanoparticles from CFA and their application for the removal of toxic heavy metals from fly ash aqueous solution will prove to be an economical and efficient approach. Here, in the presen

APA, Harvard, Vancouver, ISO, and other styles

36

Kumar Yadav, Virendra, and M. H. Fulekar. "Green synthesis and characterization of amorphous silica nanoparticles from fly ash." Materials Today: Proceedings 18 (2019): 4351–59. http://dx.doi.org/10.1016/j.matpr.2019.07.395.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Boycheva, Silviya, Denitza Zgureva, Hristina Lazarova, et al. "Processing of high-grade zeolite nanocomposites from solid fuel combustion by-products as critical raw materials substitutes." Manufacturing Review 7 (2020): 22. http://dx.doi.org/10.1051/mfreview/2020019.

Full text

Abstract:

High-grade zeolite nanocomposites are synthesized utilizing solid by-products from combustion of coal for energy production in Thermal Power Plants applying alkaline aging, hydrothermal and fusion-hydrothermal activation procedures. The obtained coal ash zeolites were studied with respect to their chemical and phase composition, morphology, surface parameters and thermal properties. It was found that they are distinguished in nanocrystalline morphology and significant content of iron oxide nanoparticles (γ-Fe2O3, α-Fe2O3, γ-Fe3O4) and doping elements (Cu, Co, Mn, V, W, etc.) transferred from t

APA, Harvard, Vancouver, ISO, and other styles

38

Labaj, Martin, Rudolf Hela, and Iveta Hájková. "Nanosilica Activated High Volume Fly Ash Concrete: Effects on Selected Properties." Key Engineering Materials 722 (December 2016): 157–62. http://dx.doi.org/10.4028/www.scientific.net/kem.722.157.

Full text

Abstract:

By volume, there is no other material used as much as concrete. Its mechanical properties, durability and favorable price makes concrete the perfect construction material. In last few decades, we are seeing a growing trend of partial Portland cement’s replacement with secondary raw materials, most commonly with fly ash. So-called high volume fly ash (HVFA) concretes usually contains over 50% of it. While HVFA concrete’s long-term properties and price are improved over the classical one, its early age properties are often affected negatively. Here, a highly reactive pozzolans enters the scene.

APA, Harvard, Vancouver, ISO, and other styles

39

Imoisili, Patrick Ehi, and Tien-Chien Jen. "Microwave-assisted sol–gel template-free synthesis and characterization of silica nanoparticles obtained from South African coal fly ash." Nanotechnology Reviews 11, no. 1 (2022): 3042–52. http://dx.doi.org/10.1515/ntrev-2022-0476.

Full text

Abstract:

Abstract In this study, we prepared a silica nanoparticle from South African fly ash (SAFA), using a facile microwave (MW)-assisted sol–gel template free syntheses method. Prepared silica nanoparticles (SNPMW) were characterized using X-ray fluorescence (XRF) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), transition electron microscope (TEM), Brunauer–Emmett–Teller (S BET) surface area analysis, and ultraviolet visible diffuse reflection spectroscopy. XRF analysis suggests SA

APA, Harvard, Vancouver, ISO, and other styles

40

Bhattacharyya, Tamoghna. "Gold Nanoparticle Conjugated Water Soluble Multiwall Carbon Nanotubes." Chemosensors 6, no. 3 (2018): 36. http://dx.doi.org/10.3390/chemosensors6030036.

Full text

Abstract:

The poor solubility and dispersibility of carbon nanotubes in both aqueous and organic solvents restrict their applications in biological science. Herein, a simple and cheap method for synthesizing and purification of water soluble multiwall carbon nanotubes from coal combustion fly ash and characterization of this water soluble multiwall carbon nanotubes after conjugation with gold nanoparticles has been described.

APA, Harvard, Vancouver, ISO, and other styles

41

Alharbi, Yousef R., and Aref A. Abadel. "Engineering Properties of High-Volume Fly Ash Modified Cement Incorporated with Bottle Glass Waste Nanoparticles." Sustainability 14, no. 19 (2022): 12459. http://dx.doi.org/10.3390/su141912459.

Full text

Abstract:

Eco-friendly sustainable construction materials with low carbon dioxide emissions and low energy consumption which utilize agricultural and industrial waste are widely recommended. Utilizing high-volume fly ash waste (FA) as a cement replacement will contribute to a reduction in the environmental problems related to cement production and landfill disposal. It is well known that the inclusion of high amounts of FA (up to 50%) as a cement replacement leads to low strength performance, especially at a concrete’s early age (below 7 days). In this study, a cement mortar with high-volume FA (60%) wa

APA, Harvard, Vancouver, ISO, and other styles

42

Celik, Fatih. "An Experimental Investigation of the Effects of Fly Ash and Nano Titanium Dioxide (n-TiO2) Usage as Viscosity Modifying Agents(VMAs) in Cement-Based Grouts on Rheological Parameters." Journal of Cement Based Composites 3, no. 1 (2022): 1–11. http://dx.doi.org/10.36937/cebacom.2022.5624.

Full text

Abstract:

The effects of n-TiO2 additions at different amounts by mass (0.0%, 0.3%, 0.6%, 0.9%, 1.2% and 1.5%) on rheological properties (plastic viscosity and yield stress) of cement-based grouts incorporated with fly ash as mineral additive at different constitutes (0%-for control purpose, 5%, 10%, 15%, 20%, 25% and 30%) were investigated by analysis of experiments in this study. To prepare all samples, w/b ratio was defined as 1.0. To prevent sedimentation of TiO2 nanoparticles in free water and to supply uniform distribution of TiO2 nanoparticles in water with help of removing of these nanoparticles

APA, Harvard, Vancouver, ISO, and other styles

43

Huh, Chun, and Heechan Cho. "Silica, Fly Ash and Magnetite Nanoparticles for Improved Oil and Gas Production." Journal of the Korean Society of Mineral and Energy Resources Engineers 55, no. 4 (2018): 272–84. http://dx.doi.org/10.32390/ksmer.2018.55.4.272.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Fouad, O. A., K. S. Abdel Halim, and M. M. Rashad. "Catalytic Oxidation of CO Over Synthesized Nickel Ferrite Nanoparticles from Fly Ash." Topics in Catalysis 47, no. 1-2 (2008): 61–65. http://dx.doi.org/10.1007/s11244-007-9034-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Wang, Wang, Bai, Yang, and Wang. "Preparation and Characterization of Fly Ash Coated with Zinc Oxide Nanocomposites." Materials 12, no. 21 (2019): 3550. http://dx.doi.org/10.3390/ma12213550.

Full text

Abstract:

Calcined fly ash (CFA) was first obtained by calcining fly ash (FA) at 815 °C for two hours. Then, composite powders of CFA coated with zinc oxide nanoparticles (ZnO/CFA, ZCFA) were prepared by heterogeneous nucleation method. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Scanning electronic microscopy (SEM), Whiteness, and Brunauer-Emmett-Teller specific surface area (BET). Effects of pH value, reaction temperature and time, coating amount, solid-to-liquid ratio, the coating agent concentrations, and dropping speed on the whiteness

APA, Harvard, Vancouver, ISO, and other styles

46

Kalneus, V. A., D. A. Nemushchenko, V. V. Larichkin, and A. A. Briutov. "Research of Physical and Mechanical Properties of Fly Ash Ceramics with SiO₂ and Al₂O₃ Nanoparticles as Functional Addition." Key Engineering Materials 887 (May 2021): 528–35. http://dx.doi.org/10.4028/www.scientific.net/kem.887.528.

Full text

Abstract:

The article analyses the influence of SiO2 and Al2O3 nanopowders on properties of ceramics consisting of fly ash from thermal power plants, glass waste, and clay binder. Based on studies of physical and mechanical properties of the obtained ceramics (ultimate compressive strength, ultimate three-point bending strength, wear resistance, and water absorption), the paper shows the positive influence of the nanoadditives. The optimal number of SiO2 and Al2O3 nanopowders in the formulation is 0.5 wt. % that has the strongest effect on ultimate compressive strength and water absorption of the fly as

APA, Harvard, Vancouver, ISO, and other styles

47

Ikumapayi, Omolayo M., and Esther T. Akinlabi. "Comparative Study Of The Variability In The Compositions And The Effect Of Milling Time On Coal Fly Ash And Wood Fly Ash Nanoparticles." Materials Today: Proceedings 18 (2019): 5556–64. http://dx.doi.org/10.1016/j.matpr.2019.07.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Kuźniarska-Biernacka, Iwona, Inês Ferreira, Marta Monteiro, et al. "Highly Efficient and Magnetically Recyclable Non-Noble Metal Fly Ash-Based Catalysts for 4-Nitrophenol Reduction." Catalysts 14, no. 1 (2023): 3. http://dx.doi.org/10.3390/catal14010003.

Full text

Abstract:

4-nitrophenol (4-NPh) is a harmful compound produced in large amounts in the chemical industry, and its reduction to aminophenol (4-APh) using noble metals as catalysts is one of the most studied processes. The development of noble metal-free catalysts represents an economic advantage in large-scale applications and contributes to the sustainability of raw materials. Coal fly ash (FA), a major waste stream from coal combustion, contains an easily recoverable magnetic fraction (FAmag sample) composed of Fe-rich particles that could substitute noble metal catalysts in 4-NPh reduction, with the c

APA, Harvard, Vancouver, ISO, and other styles

49

Kalvachev, Yuri, Totka Todorova, Hristo Kolev, Daniel Merker, and Cyril Popov. "Benzene Oxidation over Pt Loaded on Fly Ash Zeolite X." Catalysts 13, no. 7 (2023): 1128. http://dx.doi.org/10.3390/catal13071128.

Full text

Abstract:

In the present study, zeolite X (FANaX) was synthesized from coal fly ash (FA) by a two-step high-temperature method. In order to follow the effect of different contaminants in the starting coal ash, zeolite X was also synthesized from pure chemicals according to a classical recipe (NaX). Iron was loaded on this reference zeolite with the amount which was contained in the coal FA. The final catalytic samples were obtained by wet impregnation of Pt nanoparticles on both types of zeolite crystals. The most active samples in the benzene oxidation were the platinum-modified ones and, among them, t

APA, Harvard, Vancouver, ISO, and other styles

50

Niyazbekova, Rimma, Gabit Mukhambetov, Rassul Tlegenov, et al. "The Influence of Addition of Fly Ash from Astana Heat and Power Plants on the Properties of the Polystyrene Concrete." Energies 16, no. 10 (2023): 4092. http://dx.doi.org/10.3390/en16104092.

Full text

Abstract:

Due to the constant increase in prices for energy resources, as well as the reduction in non-renewable resources in most developed countries of the world, the energy consumption standards of buildings are constantly decreasing, and the requirements for the level of thermal insulation of building envelopes are increasing. The increasing requirements in the level of thermal insulation of enclosing structures make the issues of improving and developing new materials and products become more urgent. Polystyrene concrete has good high-thermal and sound-absorbing properties. This serves as a means o

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!