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Nanomaterials for Fuels Exploration and Utilization

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: 12 July 2024 | Viewed by 1087

Special Issue Editors

College of Materials Science and Engineering, Chongqing University, Chongqing, China
Interests: nanomaterials; hydrogen storage materials; silicon metallurgy; WC cemented carbide
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Guest Editor
College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
Interests: wettability; corrosion; nanomaterials; coatings; new type ceramics

Special Issue Information

Dear Colleagues,

Fuels can release light and heat during chemical reactions. They are widely used in industrial and agriculture production, which greatly support the development of human civilization. Traditional fuels include coal, petroleum and natural gas. Recently, H2, biofuels and nuclear fuels have begun to attract widespread attentions as they are more clean, abundant and efficient. The exploration and utilization of fuels has been a rapidly growing area at the intersection of material and chemical sciences. Regarding this, research directed at the mining and processing of traditional fuels, as well as the formation and production of new fuels, are highly required. It has been demonstrated that nanomaterials exhibit promising applications in the exploration and utilization of fuels because they have special features such as a large surface area and tailorable structure. Therefore, this Special Issue welcomes researchers to contribute original research papers and reviews on the applications of nanomaterials in fuel exploration and utilization. The topics include, but are not limit to: hydrogen storage, CO2 capture, natural gas sweetening, and fossil fuel recovery.

Dr. Zhao Ding
Dr. Liangjuan Gao
Guest Editors

Manuscript Submission Information

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Keywords

  • hydrogen storage materials
  • CO2 capture
  • natural gas sweetening
  • fossil fuel recovery

Published Papers (1 paper)

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Research

22 pages, 9310 KiB  
Article
Network–Polymer–Modified Superparamagnetic Magnetic Silica Nanoparticles for the Adsorption and Regeneration of Heavy Metal Ions
by Yaohui Xu, Yuting Li and Zhao Ding
Molecules 2023, 28(21), 7385; https://doi.org/10.3390/molecules28217385 - 01 Nov 2023
Cited by 1 | Viewed by 867
Abstract
Superparamagnetic magnetic nanoparticles (MNPs, Fe3O4) were first synthesized based on a chemical co–precipitation method, and the core–shell magnetic silica nanoparticles (MSNPs, Fe3O4@SiO2) were obtained via hydrolysis and the condensation of tetraethyl orthosilicate onto [...] Read more.
Superparamagnetic magnetic nanoparticles (MNPs, Fe3O4) were first synthesized based on a chemical co–precipitation method, and the core–shell magnetic silica nanoparticles (MSNPs, Fe3O4@SiO2) were obtained via hydrolysis and the condensation of tetraethyl orthosilicate onto Fe3O4 seed using a sol–gel process. Following that, MSNPs were immobilized using a three–step grafting strategy, where 8-hloroacetyl–aminoquinoline (CAAQ) was employed as a metal ion affinity ligand for trapping specific heavy metal ions, and a macromolecular polymer (polyethylenimine (PEI)) was selected as a bridge between the surface hydroxyl group and CAAQ to fabricate a network of organic networks onto the MSNPs’ surface. The as–synthesized MSNPs–CAAQ nanocomposites possessed abundant active functional groups and thus contained excellent removal features for heavy metal ions. Specifically, the maximum adsorption capacities at room temperature and without adjusting pH were 324.7, 306.8, and 293.3 mg/g for Fe3+, Cu2+, and Cr3+ ions, respectively, according to Langmuir linear fitting. The adsorption–desorption experiment results indicated that Na2EDTA proved to be more suitable as a desorbing agent for Cr3+ desorption on the MSNPs–CAAQ surface than HCl and HNO3. MSNPs–CAAQ exhibited a satisfactory adsorption capacity toward Cr3+ ions even after six consecutive adsorption–desorption cycles; the adsorption efficiency for Cr3+ ions was still 88.8% with 0.1 mol/L Na2EDTA as the desorbing agent. Furthermore, the MSNPs–CAAQ nanosorbent displayed a strong magnetic response with a saturated magnetization of 24.0 emu/g, and they could be easily separated from the aqueous medium under the attraction of a magnet, which could facilitate the sustainable removal of Cr3+ ions in practical applications. Full article
(This article belongs to the Special Issue Nanomaterials for Fuels Exploration and Utilization)
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