Guest Editor(s)
Dr. Chandra Mohan
Email: gurgaonmohan@yahoo.co.in
Affiliation: School of Basic and Applied Sciences, K. R. Mangalam University, Gurugram, India
Homepage:
Research Interests: transition metal compounds, heterocyclic complexes, waste treatment, dye degradation studies, chemical sensors

Dr. Rishi Ranjan Kumar
Email: rishi611@gmail.com
Affiliation: School of Basic and Applied Sciences, K. R. Mangalam University, Gurugram, India
Homepage:
Research Interests: materials science, gas sensors, 2D materials, nanocomposites, air quality monitoring

Dr. Riya Chugh
Email: riyachugh777@gmail.com
Affiliation: Manav Rachna International Institute of Research and Studies, Faridabad, India
Homepage:
Research Interests: catalysis, green organic transformations, analytical chemistry, nanomaterials

Mrs. Ramyakrishna Pothu
Email: re-search.ramyakrishna@gmail.com
Affiliation: School of Physics and Electronics, Hunan University, Changsha, China
Research Interests: energy storage devices, environmental remediation, nanomaterials, graphene

Summary
Chalcogenide nanomaterials, including metal sulfides, selenides, tellurides, and their heterostructures, have attracted significant attention due to their outstanding optical, electrical, catalytic, and semiconducting properties, making them promising candidates for sustainable environmental remediation and advanced sensor development. This issue will focus on design, synthesis, characterization, and application of chalcogenide nanomaterials in environmental and sensing technologies.
This special Issue will showcase recent developments in the synthesis and functionalization of chalcogenide nanomaterials, their application in photocatalytic degradation of pollutants, wastewater treatment, removal of heavy metals, and environmental monitoring; and their application in electrochemical, gas, biosensing, and optical sensing technology. Structure–property relationships, theoretical modelling, nanocomposites, device fabrication, performance optimisation, scalability and practical implementation are areas of particular interest for the contributions. This Special Issue will attract the leading researchers from academia, research institutions and industry, aiming to foster interdisciplinary cooperation and exchange of innovative ideas to create a solution to the challenges faced by environment and sensing. It is hoped that it will be useful to scientists and engineers in nanomaterials research, materials science, environmental engineering, analytical chemistry and sensor technologies, as well as to the development of sustainable, high performance materials for future environmental and sensing applications.
Suggested Themes
· Synthesis and characterization of chalcogenide materials and nanostructures
· Chalcogenide Nanomaterials for Environmental Remediation and Wastewater Treatment
· Chalcogenide-based gas, chemical, and biosensors
· Two-dimensional chalcogenides and van der Waals heterostructures
· Flexible, wearable, and IoT-enabled electronic devices
· Optoelectronic and photonic applications of chalcogenides
· Defect engineering, doping, and interface modulation
· AI-assisted sensing, data analytics, and smart electronic systems
· Expected Impact and Significance
This Special Issue is expected to:
· Develop advanced knowledge in the preparation, characterization and application of chalcogenide nanomaterials for environment and sensing technologies.
· Encourage cross-disciplinary research among materials scientists, chemists, environmental engineers and sensor developers.
· State the new trends in research, technology challenges and direction of chalcogenide nanomaterials.
· Promote the development of sustainable, scalable and high-performance materials for environmental protection and smart sensing.
Graphic Abstract
Keywords
chalcogenide nanomaterials, electrochemical sensors, photocatalysis, wastewater treatment, two-dimensional materials, optoelectronics, flexible electronics, smart electronic systems