Powerful Adsorbents toward Toxic Substances

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Toxicity Reduction and Environmental Remediation".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 2294

Special Issue Editors

College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
Interests: water purification; wastewater treatment and reuse; environmentally friendly materials; heavy metal-ion adsorption; heavy metal-ion sensors; noble metal recovery; environmental materials chemistry; nanomaterials; separation membrane and membrane separation
Special Issues, Collections and Topics in MDPI journals
College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
Interests: water purification; wastewater treatment; environmental benign polymers; heavy metal-ion adsorption; metal-ion detection; ion-selective electrode and sensors; noble metal recovery; environmental polymer chemistry; polymer nanomaterials; biomacromolecules
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the modern industrial world, it seems that toxic pollutants are everywhere. Toxic substances generally include inorganic heavy metal/metalloid ions such as lead, mercury, cadmium, chromium, and arsenic ions; organic pesticides, antibiotics, and hormones; and gases such as chlorine, sulfur dioxide, ammonia, carbon monoxide, hydrogen arsenide, phosgene, vinyl chloride, nitrogen dioxide, carbon disulfide, ammonia, dimethyl sulfate, hydrogen fluoride, formaldehyde, chloroprene, hydrogen sulfide, hydrogen cyanide, acrylonitrile, and methanol, as three groups of seriously toxic pollutants in the environment. Among the traditional techniques to remove toxic pollutants from our environment, the adsorption method is definitely an effective and economically feasible alternative. In fact, powerful adsorbents toward toxic pollutants have become a hotspot in the interdisciplinary field of materials and environmental sciences.

This Special Issue aims to report the present the state of knowledge around powerful adsorbents toward toxic substances in the environment. The articles presented here should be of interest to a broad audience of scientists working in toxics, materials, and environmental sciences because of their close relationship. In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

The preparation and development of organic polymers or macromolecules or inorganic synthetic or natural materials with strong adsorbability toward the three types of toxic pollutants or contaminants in the environment.

We would like to invite you to contribute an article. If you want to contribute to this issue, please propose an article title matching the theme of this issue. Articles published in this issue will be indexed by Science Citation Index (ISI).

We look forward to receiving your contributions.

Prof. Dr. Xin-Gui Li
Prof. Dr. Mei-Rong Huang
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. Toxics is an international peer-reviewed open access monthly 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 2600 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

  • organic polymer adsorbent
  • biomacromolecules
  • inorganic adsorbent materials
  • toxic pollutant
  • toxic contaminant
  • adsorption process optimization
  • toxic substance recovery
  • adsorbent regeneration

Published Papers (1 paper)

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Research

14 pages, 4504 KiB  
Article
Removal of Antimony(V) from Drinking Water Using nZVI/AC: Optimization of Batch and Fix Bed Conditions
by Huijie Zhu, Qiang Huang, Shuai Fu, Xiuji Zhang, Zhe Yang, Jianhong Lu, Bo Liu, Mingyan Shi, Junjie Zhang, Xiaoping Wen and Junlong Li
Toxics 2021, 9(10), 266; https://0-doi-org.brum.beds.ac.uk/10.3390/toxics9100266 - 14 Oct 2021
Cited by 3 | Viewed by 1924
Abstract
Antimony (Sb) traces in water pose a serious threat to human health due to their negative effects. In this work, nanoscale zero-valent iron (Fe0) supported on activated carbon (nZVI) was employed for eliminating Sb(V) from the drinking water. To better understand [...] Read more.
Antimony (Sb) traces in water pose a serious threat to human health due to their negative effects. In this work, nanoscale zero-valent iron (Fe0) supported on activated carbon (nZVI) was employed for eliminating Sb(V) from the drinking water. To better understand the overall process, the effects of several experimental variables, including pH, dissolved oxygen (DO), coexisting ions, and adsorption kinetics on the removal of Sb(V) from the SW were investigated by employing fixed-bed column runs or batch-adsorption methods. A pH of 4.5 and 72 h of equilibrium time were found to be the ideal conditions for drinking water. The presence of phosphate (PO43), silicate (SiO42), chromate (CrO42) and arsenate (AsO43) significantly decreased the rate of Sb(V) removal, while humic acid and other anions exhibited a negligible effect. The capacity for Sb(V) uptake decreased from 6.665 to 2.433 mg when the flow rate was increased from 5 to 10 mL·min−1. The dynamic adsorption penetration curves of Sb(V) were 116.4% and 144.1% with the weak magnetic field (WMF) in fixed-bed column runs. Considering the removal rate of Sb(V), reusability, operability, no release of Sb(V) after being incorporated into the iron (hydr)oxides structure, it can be concluded that WMF coupled with ZVI would be an effective Sb(V) immobilization technology for drinking water. Full article
(This article belongs to the Special Issue Powerful Adsorbents toward Toxic Substances)
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