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Advanced Research in Activated Carbon Adsorption—2nd Edition

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: 20 March 2026 | Viewed by 502

Special Issue Editors


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Guest Editor
Faculty of Infrastructure and Environment, Częstochowa University of Technology, 42-200 Czestochowa, Poland
Interests: activated carbon; adsorption; wastewater; wastewater treatment; dyes; industrial wastewater; pollutants
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Faculty of Infrastructure and Environment, Częstochowa University of Technology, 42-200 Czestochowa, Poland
Interests: wastewater; wastewater treatment; dyes; adsorption; adsorbents; activated carbons; industrial wastewater; pollutant impact; sustainable wastewater treatment; advanced water treatment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Concern for the environment has been growing significantly in recent years, in terms both of expanding legal requirements and the elimination of hazards that cause direct impacts to human health. Various pollutants can accumulate in living organisms, causing permanent cell damage and disorders leading to disease or even death. Nowadays, human activity leads to the generation of significant amounts of waste, which is one of the greatest threats to the environment, including natural waters. These mainly include industrial, agricultural and domestic wastewater. Among the pollutants entering water, heavy metals are a particularly dangerous group of substances; they pose a great threat to the health and life of organisms due to their high toxicity and bioaccumulation capacity.

Due to their availability, unique porosity and environmental neutrality, activated carbons are used in many areas of life. The processes of the greatest applied and industrial importance include the removal of hydrogen sulphide from natural gas, the purification of drinking and wastewater, the recovery of volatile organic solvent vapours, the removal of SO2 and nitrogen oxides from flue gases, the removal of mercury vapours from air and the purification of air in air-conditioning systems.

Dr. Ewa Okoniewska
Dr. Małgorzata Worwa̧g
Guest Editors

Manuscript Submission Information

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Keywords

  • activated carbon
  • adsorption
  • wastewater
  • pollutants

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Published Papers (1 paper)

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Research

20 pages, 2623 KB  
Article
Nano Zero-Valent Iron—Rubber Seed Shell Biochar (nZVI-RSSB) Enhances Removal of Cadmium from Water
by Guoyan Zhan and Zhenhua Zhang
Appl. Sci. 2025, 15(17), 9807; https://doi.org/10.3390/app15179807 - 7 Sep 2025
Viewed by 224
Abstract
Cadmium {Cd (II)} poses a high risk to ecological security and human health due to its high toxicity, easy migration and difficult degradation. Using waste rubber seed shell biochar (RSSB) as the carrier material of nZVI may inhibit the caking oxidation of zero-valent [...] Read more.
Cadmium {Cd (II)} poses a high risk to ecological security and human health due to its high toxicity, easy migration and difficult degradation. Using waste rubber seed shell biochar (RSSB) as the carrier material of nZVI may inhibit the caking oxidation of zero-valent iron and improve the removal efficiency of Cd (II) from water. Through a series of batch experiments, the adsorption mechanism of modified biochar on Cd (II) clarified that the removal effect of nano-zero-valent iron-rubber seed shell biochar (nZVI-RSSB) on heavy metals in water was better than that of RSSB. The results showed that when the dosage of complex biochar was 80 mg, the initial concentration of Cd (II) was 50 mg/L, and the solution pH was 6, the maximum adsorption capacity of nZVI-RSSB for Cd (II) reached 30.42 mg/g, compared with the RSSB of 13.32 mg/g. The adsorption kinetics model showed that chemisorption and physical adsorption existed simultaneously. The results of the in-particle diffusion model show that the adsorption process may be divided into two stages. The Langmuir competitive adsorption model was followed. Electrostatic adsorption and precipitation/co-precipitation could be the main ways for the removal of Cd (II) by composite materials. Meanwhile, the synergistic adsorption of nZVI-RSSB composites with multiple metals in actual water showed its application potential in water pollution control. Hence, the nZVI-RSSB not only successfully inhibits the caking oxidation of zero-valent iron, but also effectively improves the removal efficiency of heavy metals from water. Full article
(This article belongs to the Special Issue Advanced Research in Activated Carbon Adsorption—2nd Edition)
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