Chemical and Microbiological Analyses of Wastes, Effluents and Materials

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Environmental and Green Processes".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1151

Special Issue Editors


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Guest Editor
ENEA—LEA Laboratory for the Environment, Via Martiri di Monte Sole 4, 40129 Bologna, Italy
Interests: organic chemistry; water microbiology; processes for wastewater treatment; environmental communication

E-Mail Website
Guest Editor
ENEA—LEA Laboratory for the Environment, Via Martiri di Monte Sole 4, 40129 Bologna, Italy
Interests: organic chemistry; analytical chemistry; processes for wastewater treatment; soils and biomasses chemistry

Special Issue Information

Dear Colleagues,

Chemical and microbiological characterizations of different matrices are indispensable steps to know and define their properties for the purpose of their use, reuse, recycling or disposal.

Analytical chemistry, in particular, is constantly striving to improve and revolutionize the established analytical methods by enabling the analysis of increasingly complex samples.

On the other hand, microbiological characterization together with the development of biotechnology, has enabled increasingly better knowledge of the physiology, metabolism and genetics of microorganisms both for their application and for the control of potentially pathogenic microorganisms.

Characterization is also useful in verifying the effectiveness of a process or treatment, by allowing the necessary modifications to be made for process optimization according to the desired result that respects the environment and protects human health.

This Special Issue on “Chemical and Microbiological Analyses of Wastes, Effluents and Materials” seeks high-quality research focusing on the latest novel advances in chemical and microbiological characterization processes and techniques. Topics include, but are not limited to, the following:

  • The detection of trace chemical and microbiological emerging contaminants;
  • Rapid, real-time, process-integrated analysis techniques;
  • The assessment of investigated processes for chemical and microbiological characterization using a holistic approach;
  • The environmental sustainability of analytical methodologies (e.g., green chemistry);
  • Biodegradability assessment.

Dr. Roberta Guzzinati
Dr. Luigi Sciubba
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. Processes 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 2400 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

  • spectrophotometry
  • mass spectrometry
  • chromatography
  • electrophoresis
  • green chemistry
  • contaminant of emerging concern
  • antimicrobial resistance (AMR)
  • bioassay

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Published Papers (1 paper)

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Research

15 pages, 5612 KiB  
Article
Interlayer-Functionalized Graphene with Phosphorus–Silicon-Containing Elements for Improving Thermal Stability and Flame Retardance of Polyacrylonitrile
by Yu Guan, Chengcheng Wang, Shaohai Fu, Lishan Fan, Qin Lin and Dong Wang
Processes 2024, 12(11), 2511; https://doi.org/10.3390/pr12112511 - 12 Nov 2024
Viewed by 818
Abstract
Highly-effective non-halogenated flame retardants have received widespread attention because they are environmentally friendly, with low toxicity and low smoke density. In this work, interlayer-functionalized graphene (fRGO) containing silicon and phosphorus elements was synthesized via hydrolytic condensation with 3-(methacryloyloxy)propyltrimethoxysilane and addition reaction with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide. [...] Read more.
Highly-effective non-halogenated flame retardants have received widespread attention because they are environmentally friendly, with low toxicity and low smoke density. In this work, interlayer-functionalized graphene (fRGO) containing silicon and phosphorus elements was synthesized via hydrolytic condensation with 3-(methacryloyloxy)propyltrimethoxysilane and addition reaction with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide. Interlayer spacing and oxygen-containing groups of reduced graphene oxide (RGO) were regulated by controlling the hydrazine hydrate dosage. Then, phosphorus–silicon-containing organic molecules were inserted into RGO interlayers; this was verified by FTIR, XPS, TEM, etc. The fRGO was added to a polyacrylonitrile (PAN) matrix using a solution blending method to prepare polyacrylonitrile (PAN) composites. The fRGO addition caused the significant decrease in cyclization heat and the considerable increase in char residues, indicating improved thermal stability. Importantly, PAN composites exhibited outstanding flame-retardant properties, with the peak heat release rate reduced by 45%, which is ascribed to the dense graphitic carbon layers induced by phosphorus–silicon-containing organics and the 2D barrier effect of RGO layers to prevent the heat and mass transfer. Full article
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