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Recent Advances in Adsorbents for Environmental Pollution and Resource Recycling

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

Deadline for manuscript submissions: 28 February 2025 | Viewed by 653

Special Issue Editors


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Guest Editor
School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
Interests: mineral materials; clay nanosheets; polymer chemistry; hydrogel; self-assembly; wastewater treatment
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350108, China
Interests: solid waste recycling; green extraction of energy metals; wastewater treatment

Special Issue Information

Dear Colleagues,

In recent years, the development of advanced adsorbents has emerged as a critical area of research in addressing environmental pollution and resource recycling. Adsorbents play a pivotal role in mitigating the impacts of pollutants such as heavy metals, organic contaminants, and greenhouse gases. Additionally, they are instrumental in recovering valuable resources from industrial waste streams, metallurgical secondary resources, and urban mineral resources, contributing to a more sustainable and circular economy. The continuous innovation in material science, particularly in the synthesis and functionalization of adsorbents, has led to significant improvements in their efficiency, selectivity, and reusability. This Special Issue aims to collate the latest research and advancements in this dynamic field, providing a platform for the dissemination of new knowledge and technologies.

This Special Issue aims to explore the latest developments in the design, synthesis, and application of adsorbents for environmental pollution control and resource recovery. It seeks to highlight the innovative approaches and technological breakthroughs that align with the journal’s scope of advancing science and technology for environmental sustainability. By focusing on recent advances, the issue will provide insights into the current state of the art and identify future directions for research and development in this area.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but not limited to) the following:

  1. Novel Adsorbent Materials: Development of new materials, including nanomaterials, metal-organic frameworks, and bio-based adsorbents.
  2. Mechanisms of Adsorption: Studies on the adsorption kinetics and thermodynamics of various pollutants.
  3. Applications in Environmental Remediation: Case studies and practical applications of adsorbents in water and air purification.
  4. Resource Recovery and Recycling: Innovative methods for recovering valuable resources from waste streams, metallurgical secondary resources, and urban mineral resources using adsorbents.
  5. Regeneration and Reusability: Techniques for adsorbent regeneration and lifecycle assessment.
  6. Environmental Impact and Sustainability: Evaluations of the environmental and economic impacts of adsorbent-based technologies.

We look forward to receiving your contributions.

Dr. Wei Wang
Dr. Lang Yang
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. Molecules 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 2700 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

  • adsorption
  • molecular structure design
  • environmental pollution
  • metal enrichment extraction
  • resource recycling
  • adsorbent preparation and synthesis
  • wastewater treatment

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Published Papers (1 paper)

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Research

14 pages, 5575 KiB  
Article
Enhanced Gallium Extraction Using Silane-Modified Mesoporous Silica Synthesized from Coal Gasification Slag
by Shiqiao Yang, Guixia Fan, Lukuan Ma, Chao Wei, Peng Li, Yijun Cao and Daoguang Teng
Molecules 2024, 29(22), 5232; https://doi.org/10.3390/molecules29225232 - 5 Nov 2024
Viewed by 470
Abstract
This study presents an innovative approach to utilize coal gasification coarse slag (CGCS) for efficient and low-cost gallium extraction. Using a one-step acid leaching process, mesoporous silica with a surface area of 258 m2/g and a pore volume of 0.15 cm [...] Read more.
This study presents an innovative approach to utilize coal gasification coarse slag (CGCS) for efficient and low-cost gallium extraction. Using a one-step acid leaching process, mesoporous silica with a surface area of 258 m2/g and a pore volume of 0.15 cm3/g was synthesized. The properties of CGCS before and after acid leaching were characterized through SEM, FTIR, XRD, and BET analyses, with optimal conditions identified for maximizing specific surface area and generating saturated silanol groups. The prepared mesoporous silica demonstrated a 99% Ga(III) adsorption efficiency. Adsorption conditions were optimized, and adsorption kinetics, isotherms, and competitive adsorption behaviors were evaluated. Competitive adsorption with vanadium suggests potential application in Ga(III) extraction from vanadium-rich waste solutions. Furthermore, the recyclability of both the acid and adsorbent was explored, with the adsorbent maintaining over 85% adsorption efficiency after five cycles. The adsorption mechanism was further elucidated through SEM-EDS, XPS, and FTIR analyses. This work not only advances resource recovery from industrial waste but also offers a sustainable method for gallium extraction with industrial applications. Full article
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