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Nanomaterials
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Recent Advances and Research on Nanomaterials and Their Applications in...
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Recent Advances and Research on Nanomaterials and Their Applications in Wastewater Treatment

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: closed (30 July 2024) | Viewed by 4660

Special Issue Editors

Dr. Shuang Luo

E-Mail Website
Guest Editor
College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
Interests: organic pollutants; PFAS; photocatalytic materials; computational chemistry simulations; environmental models
Special Issues, Collections and Topics in MDPI journals
Dr. Jiangchi Fei

E-Mail Website
Guest Editor
College of Resources, Hunan Agricultural University, Changsha 410128, China
Interests: organic pollutants; mulch film; microplastics; biodegradable materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanomaterials have attracted attention because of their unique characteristics, which allow them to be extensively used in numerous applications. Water treatment is an important concern in the environmental field. Nanomaterials in water treatment have been studied for many years with many applications. This Special Issue will present a collection of articles on nanomaterials and their application in wastewater treatment. This Special Issue includes, but is not limited to, the following potential topics:

  • The preparation, synthesis, and improvement of environmentally friendly nanomaterials applicated in water treatment;
  • Nanomaterials enhancing pollutant degradation in water treatment;
  • Recent advances in nanomaterials and nanotechnologies in wastewater treatment;
  • Evaluations of the application of nanomaterials in water treatment, including possible risks;
  • New nanomaterials, new nanotechnologies, etc.

Original research articles, reviews, letters to the editor, and short communications are welcome. We look forward to receiving your contributions.

Dr. Shuang Luo
Dr. Jiangchi Fei
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanomaterials
  • water treatment
  • pollutant
  • application
  • adsorption

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

18 pages, 5760 KB  
Article
Efficient Removal of Tetracycline from Water by One-Step Pyrolytic Porous Biochar Derived from Antibiotic Fermentation Residue
by Xinyu Zhao, Guokai Zhu, Jiangtao Liu, Jieni Wang, Shuqin Zhang, Chenlin Wei, Leichang Cao, Shuguang Zhao and Shicheng Zhang
Nanomaterials 2024, 14(17), 1377; https://doi.org/10.3390/nano14171377 - 23 Aug 2024
Cited by 5 | Viewed by 1824
Abstract
The disposal and treatment of antibiotic residues is a recognized challenge due to the huge production, high moisture content, high processing costs, and residual antibiotics, which caused environmental pollution. Antibiotic residues contained valuable components and could be recycled. Using a one-step controllable pyrolysis [...] Read more.
The disposal and treatment of antibiotic residues is a recognized challenge due to the huge production, high moisture content, high processing costs, and residual antibiotics, which caused environmental pollution. Antibiotic residues contained valuable components and could be recycled. Using a one-step controllable pyrolysis technique in a tubular furnace, biochar (OSOBs) was produced without the preliminary carbonization step, which was innovative and time- and cost-saving compared to traditional methods. The main aim of this study was to explore the adsorption and removal efficiency of tetracycline (TC) in water using porous biochar prepared from oxytetracycline fermentation residues in one step. A series of characterizations were conducted on the prepared biochar materials, and the effects of biochar dosage, initial tetracycline concentration, reaction time, and reaction temperature on the adsorption capacity were studied. The experimental results showed that at 298 K, the maximum adsorption capacity of OSOB-3-700 calculated by the Langmuir model reached 1096.871 mg/g. The adsorption kinetics fitting results indicated that the adsorption of tetracycline on biochar was more consistent with the pseudo-second-order kinetic model, which was a chemical adsorption. The adsorption isotherm fitting results showed that the Langmuir model better described the adsorption process of tetracycline on biochar, indicating that tetracycline was adsorbed in a monolayer on specific homogeneous active sites through chemical adsorption, consistent with the kinetic conclusions. The adsorption process occurred on the surface of the biochar containing rich active sites, and the chemical actions such as electron exchange promoted the adsorption process. Full article
(This article belongs to the Special Issue Recent Advances and Research on Nanomaterials and Their Applications in Wastewater Treatment)
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16 pages, 3376 KB  
Article
Enhancement of Peroxydisulfate Activation for Complete Degradation of Refractory Tetracycline by 3D Self-Supported MoS2/MXene Nanocomplex
by Yuxia Song, Runhua Chen, Shihai Li, Shali Yu, Xiaoli Ni, Minglong Fang and Hanyun Xie
Nanomaterials 2024, 14(9), 786; https://doi.org/10.3390/nano14090786 - 30 Apr 2024
Cited by 3 | Viewed by 2325
Abstract
Antibiotic abuse, particularly the excessive use of tetracycline (TC), a drug with significant environmental risk, has gravely harmed natural water bodies and even posed danger to human health. In this study, a three-dimensional self-supported MoS2/MXene nanohybrid with an expanded layer spacing [...] Read more.
Antibiotic abuse, particularly the excessive use of tetracycline (TC), a drug with significant environmental risk, has gravely harmed natural water bodies and even posed danger to human health. In this study, a three-dimensional self-supported MoS2/MXene nanohybrid with an expanded layer spacing was synthesized via a facile one-step hydrothermal method and used to activate peroxydisulfate (PDS) for the complete degradation of TC. The results showed that a stronger •OH signal was detected in the aqueous solution containing MoS2/MXene, demonstrating a superior PDS activation effect compared to MoS2 or Ti3C2TX MXene alone. Under the conditions of a catalyst dosage of 0.4 g/L, a PDS concentration of 0.4 mM, and pH = 5.0, the MoS2/MXene/PDS system was able to fully eliminate TC within one hour, which was probably due to the presence of several reactive oxygen species (ROS) (•OH, SO4•−, and O2•−) in the system. The high TC degradation efficiency could be maintained under the influence of various interfering ions and after five cycles, indicating that MoS2/MXene has good anti-interference and reusability performance. Furthermore, the possible degradation pathways were proposed by combining liquid chromatography–mass spectrometry (LC-MS) data and other findings, and the mechanism of the MoS2/MXene/PDS system on the degradation process of TC was elucidated by deducing the possible mechanism of ROS generation in the reaction process. All of these findings suggest that the MoS2/MXene composite catalyst has strong antibiotic removal capabilities with a wide range of application prospects. Full article
(This article belongs to the Special Issue Recent Advances and Research on Nanomaterials and Their Applications in Wastewater Treatment)
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