Crystalline Porous Materials for Environment and Sensing

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1415

Special Issue Editors


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Guest Editor
Departamento de Química Inorgánica, Universidad Autónoma de Madrid, Madrid, Spain
Interests: fluorescent sensors; photoactive materials; new porous materials for the purification of added-value substances; covalent organic frameworks

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Guest Editor
Inorganic Chemistry Department, Universidad Autónoma de Madrid, Madrid, Spain
Interests: metal/covalent organic frameworks; capture and degradation of pollutants; water remediation; processing of porous materials for practical applications
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Special Issue Information

Dear Colleagues,

Crystalline porous materials such as zeolites, metal organic frameworks (MOFs) and covalent organic frameworks (COFs) exhibit outstanding properties that make them greatly appealing in a wide range of applications including gas and energy storage, catalysis, sensing and purification among others.

In the current context of globalization, increase in industrial activity and climate change, the development of efficient systems for the detection and removal of contaminants in water, atmosphere and soil has become an imperative necessity. Crystalline porous materials are ideal candidates for this purpose due to their high specific surface area, pore size modulation and versatile chemical functionalization.

This Special Issue is aimed to highlight novel applications of crystalline porous materials in the sensing and/or capture of pollutants arising from human activity and industrial production, such as heavy metals, toxic inorganic anions and persistent organic pollutants, among others. This will also render opportunities to explore new strategies and promote collaborations among researchers in the field.

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

We look forward to receiving your contributions.

Dr. Raquel Gavara
Dr. Carmen Montoro
Guest Editors

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Keywords

  • crystalline porous materials
  • zeolites
  • MOFs
  • COFs
  • metal organic cages
  • mesoporous silica
  • pollutants
  • environmental remediation
  • sensing

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Published Papers (1 paper)

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Research

14 pages, 3029 KiB  
Article
Efficient Sequestration of Heavy Metal Cations by [Mo2S12]2− Intercalated Cobalt Aluminum-Layered Double Hydroxide
by Subrata Chandra Roy, Carrie L. Donley and Saiful M. Islam
Inorganics 2025, 13(2), 50; https://doi.org/10.3390/inorganics13020050 - 10 Feb 2025
Viewed by 593
Abstract
Heavy metal cations such as Ag+, Pb2+, and Hg2+ can accumulate in living organisms, posing severe risks to biological systems, including humans. Therefore, removing heavy metal cations from wastewater is crucial before discharging them to the environment. However, [...] Read more.
Heavy metal cations such as Ag+, Pb2+, and Hg2+ can accumulate in living organisms, posing severe risks to biological systems, including humans. Therefore, removing heavy metal cations from wastewater is crucial before discharging them to the environment. However, trace levels and high-capacity removal of the heavy metals remain a critical challenge. This work demonstrates the synthesis and characterization of [Mo2S12]2− intercalated cobalt aluminum-layered double hydroxide, CoAl―Mo2S12―LDH (CoAl―Mo2S12), and its remarkable sorption properties for heavy metals. This material shows high efficiency for removing over 99.9% of Ag+, Cu2+, Hg2+, and Pb2+ from 10 ppm aqueous solutions with a distribution constant, Kd, as high as 107 mL/g. The selectivity order for removing these ions, determined from the mixed ion state experiment, was Pb2+ < Cu2+ ≪ Hg2+ < Ag+. This study also suggests that CoAl―Mo2S12 is not selective for Ni2+, Cd2+, and Zn2+ cations. CoAl―Mo2S12 is an efficient sorbent for Ag+, Cu2+, Hg2+, and Pb2+ ions at pH~12, with the removal performance of both Ag+ and Hg2+ cations retaining > 99.7% across the pH range of ~2 to 12. Our study also shows that the CoAl―Mo2S12 is a highly competent silver cation adsorbent exhibiting removal capacity (qm) as high as ~918 mg/g compared with the reported data. A detailed mechanistic analysis of the post-treated solid samples with Ag+, Hg2+, and Pb2+ reveals the formation of Ag2S, HgS, and PbMoO4, respectively, suggesting the precipitation reaction mechanism. Full article
(This article belongs to the Special Issue Crystalline Porous Materials for Environment and Sensing)
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