Special Issue "Advanced Oxidation Technologies for Water and Wastewater Treatment from Organic Pollutants by Nanostructure Materials"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: 31 October 2023 | Viewed by 536

Special Issue Editors

Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
Interests: physical chemistry; materials chemistry; spectroscopy; photoelectron spectroscopy
Laboratory of Science and Technology of Nanoparticles, Faculty of Chemistry and Pharmacy, University of Sofia, J. Bourchier 1, 1164 Sofia, Bulgaria
Interests: heterogeneous photocatalysis; pharmaceutical drug; organic dyes; semiconductor nanomatirials
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Special Issue Information

Dear Colleagues,

Water is the most important natural resource in the world and the availability of safe drinking water is a high priority issue for human existence and quality of life. Unfortunately, water resources are coming under increasing pressure due to population growth, over-use and wastage. AOPs are particularly attractive as a method for removing organic pollutants from water using nanostructure materials because they utilize hydroxyl radicals as a major oxidizing agent. Therefore, they can destroy hazardous contaminants, not simply transfer them to another phase, as do air stripping and granular activated carbon adsorption. 

The nanostructure semiconductor materials can degrade most kinds of persistent organic pollutants, such as detergents, dyes, pesticides and pharmaceutical drugs, under light illumination. Semiconductors can act as sensitizers for light-induced redox processes due to the electronic structure of the metal atoms.

The aim of the Special Issue “Advanced Oxidation Technologies for Water and Wastewater Treatment from Organic Pollutants by Nanostructure Materials: Latest Advances, Challenges, and Prospects” is to serve scientists through the Latest Advances, Challenges, and Prospects in solving environmental problems. In this context, we request you submit your articles to our Special Issue on or before October 31, 2023, so that it may be included article in the upcoming issue.

Dr. George Tzvetkov
Dr. Nina Kaneva
Guest Editors

Manuscript Submission Information

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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. Water 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 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

  • advanced oxidation technologies
  • nanostructure materials
  • organic pollutants
  • water purification

Published Papers (1 paper)

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Research

Article
Degradation of 2-Chlorophenol in Aqueous Solutions Using Persulfate Activated by Biochar Supported Sulfide-Modified Nanoscale Zero-Valent Iron: Performance and Mechanisms
Water 2023, 15(15), 2805; https://doi.org/10.3390/w15152805 - 03 Aug 2023
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Abstract
In this work, soybean biochar-supported sulfide-modified nanoscale zero-valent iron (BC@S-nZVI) was synthesized and used to activate persulfate (PS) to degrade 2-chlorophenol (2-CP) in aqueous solutions. Batch experiments were carried out to investigate the degradation effects under different conditions, including initial mass ratios among [...] Read more.
In this work, soybean biochar-supported sulfide-modified nanoscale zero-valent iron (BC@S-nZVI) was synthesized and used to activate persulfate (PS) to degrade 2-chlorophenol (2-CP) in aqueous solutions. Batch experiments were carried out to investigate the degradation effects under different conditions, including initial mass ratios among 2-CP, PS, and BC@S-nZVI, initial pH values, temperature, and anions. The results showed that the mass ratio of PS to 2-CP equal to 70 and the mass ratio of BC@S-nZVI to PS equal to 0.4 were the optimum mass ratios in the degradation system. The degradation efficiency of 2-CP was higher under acidic and alkaline conditions than the neutral condition, and the effect was best at a pH of 3; meanwhile, it increased with the increase in temperature. Moreover, the degradation rate was restrained with the addition of Cl, promoted with the addition of NO3 and CO32−. Both free radical and material functions played leading roles in the degradation of 2-CP, and the stability of BC@S-nZVI was better than nZVI and S-nZVI. The experimental results showed that it was promising to remove 2-CP and other organic pollutants from groundwater by PS activated with BC@S-nZVI. Full article
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