Lucas Meili is Professor in the Center of Technology at the Federal University of Alagoas, Maceió, Brazil. His areas of interest are focused in separation processes, water and wastewater treatment, and synthesis of materials, with a particular interest in adsorption and advanced oxidation processes. Dr. Rangabhashiyam Selvasembian currently working as Associate Professor in the Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University-AP, India. Previously worked in the Department of Biotechnology, School of Chemical & Biotechnology, SASTRA Deemed University, India. He received his Doctor of Philosophy degree from National Institute of Technology Calicut, India. He was awarded Post-Doctoral Fellowship by Max Planck Institute for Dynamics of Complex Technical Systems, 2015, Germany. He was further awarded the National-Post Doctoral Fellowship from SERB-DST, 2016-2018, India. Dr Selvasembian was awarded as Young Scientist by DST, India for the BRICS Conclave held in Durban, 2018, South Africa and was the recepient of Hiyoshi Young Leaf Award from Hiyoshi Ecological Services, Hiyoshi Corporation, 2018, Japan. His major research interests are bioremediation and waste water treatment. He is Editorial Board Member in Separation & Purification Reviews, Scientific Reports, Biomass Conversion and Biorefinery and Environmental Management. He is also serving as Associate Editor in International Journal of Environmental Science and Technology, IET Nanobiotechnology, Frontiers in Environmental Chemistry and also as an Academic Editor for Adsorption Science and Technology. He has published more than 100 peer reviewed interna tional research articles and contributed several book chapters. He is editing books from prestigious publishers such as Elsevier, Wiley, CRC and Springer. Recently Dr Selvasembian was listed in Top 2% most cited research scientist in the world as per data published by Stanford University USA. Melissa Gurgel Adeodato Vieira is Associate Professor at the School of Chemical Engineering (FEQ) at the University of Campinas, São Paulo, Brazil. She has been working in recent years on environmental technologies (adsorption/ionic exchange/AOPs) for the advanced treatment of industrial effluents and water contaminated by micropollutants and emerging pollutants. Dakeshwar Kumar Verma is Assistant Professor of Chemistry at Government Digvijay Autonomous Postgraduate College, Rajnandgaon, India. His research is mainly focused on the preparation and design of organic compounds for various applications. Dr. Pardeep Singh is an Assistant Professor at the Department of Environmental Science, PGDAV College, University of Delhi, in New Delhi, India. He obtained his PhD at the Indian Institute of Technology (Banaras Hindu University) Varanasi. Dr. Singh has published more than 65 papers in international journals in the fields of waste management, environmental pollution, and agricultural nanotechnology, and has co-edited 30 books.

• Part 1: Introduction: Fundamental aspects and challenges1. Introduction to environmental problems, challenges and existing approaches2. Green technologies for synthesis of metal- oxides developed for environmental applications3. Metal oxide nanoparticles and their physicochemical properties Part 2. Environmental monitoring using metal oxide sensors4. Metal-oxide based gas sensors in environmental monitoring5. Metal oxide-based sensors for water quality control6. Application of metal-oxide based materials in sensors for combustion control7. Test methods for the evaluation of soil contamination8. Metal oxides for radiation detection (such as Gamma and x-ray) Part 3. Environmental remediation technologies based on metal oxides using9. Metal oxide adsorbents for gaseous pollutant removal (NOx, CO, decarbonization, SO2, volatile organic compounds, comparison with other adsorbents, etc.)10. Metal-oxide based materials for degradation of gas and volatile organic pollutants by photo-catalysis11. Application of metal-oxide based materials for heavy metal removal from water stream12. The use of adsorbents based on metal oxides for water purification from emerging organic pollutants13. Remediation of organic pollutants from soil through metal-oxide adsorbents14. Remediation of heavy metals from soil through metal-oxide adsorbents15. Use of mixed-metal cathodes in electrochemistry for pollutants removal16. Current biomedical applications of metal oxide nanoparticles17. Metal-oxide based materials for degradation of pollutants by photo-catalysis on liquid phase Part 4: Economics, commercialization, and case studies of metal oxides used for environmental remediation18. Economic and commercialization of metal oxide-based materials used for the mitigation of environmental problems19. Industrial metal oxide nanomaterials and their industrial applications: Current challenges, future prospects, ideal substitutes, and case studies