Publications

PATENTS

1. Ambika, S., Venkateshwaran, G. (2023). A method and a system for water treatment - Application no: Indian Patent Application No. 202341083848  (Filed provisional application)

2. Ambika, S., Venkateshwaran, G. (2024). A kind of PFOA detection method based on fluorescence quenching – Indian Patent Application no: 202441077834 (Filed complete specification)

3. Ambika S, Antara Roy, Indian Patent Application no: 202541026338; Filing Date: 22.03.2025 (Filed provisional application)

4. 2 more research works are under the filing process

TECHNICAL REPORTS

5. Sustainability Impact Assessment Study on Local Air Quality, focusing on What has been the impact of SCM in the improvement of local air quality in Indian smart cities?, Ministry of Housing and Urban Affairs, Government of India, 2024

6. Sustainability Impact Assessment Study on Solid Waste Management' focusing on What has been the contribution of Indian Smart Cities in the Solid Waste Management Sector?, Ministry of Housing and Urban Affairs, Government of India, 2024

JOURNALS

7. Sreelakshmi, Ingle D, Ambika S, Venkata RK; Narendra K, Ammonium-ion induced redox charge storage of porous organic polymer, ACS Applied Energy Materials (Accepted), 2025 IF-5.5

8. Shivani R, Venkateshwaran G, Ambika S, Synergistic Photo electrocatalytic Removal of Ciprofloxacin using WO3-gC3N4 Coated Grafoil Electrode: Insights into pH-Driven Kinetics and Mechanism, Chemical Engineering Journal, 2025 https://doi.org/10.1016/j.cej.2025.164063 IF-13.4

9. Abhishek B, Venkateshwaran G, Hari PR, Mehdi E, Ambika S, Photocatalytic treatment of agricultural runoff water using Bi2O3-ZrO2: A novel approach to mitigating persistent organic pollutants and nutrient contaminants,  Journal of Environmental Chemical Engineering, 13 (3), 2025, 116620, https://doi.org/10.1016/j.jece.2025.116620  IF-7.4

10. Sreelakshmi P.   Soujanya H. Goudar,   Soumyaranjan Behera,   Kotagiri Venkata Rao,  Ambika S  and  Narendra Kurra, Ti3C2Tx MXene bonded perylene diimide as a robust charge host for seawater electrolytes, Chemical Communications, 2024,  https://doi.org/10.1039/D4CC05059B  IF- 6.222

11. Vishnudatha V, Akshay Ranjith , Ambika S, Exploring Community Attitudes and Perception Towards Solid Waste Management: A Case Study of Kerala, India, Current Science, 126, 12, 2024 https://www.currentscience.ac.in/Volumes/126/12/1472.pdf  IF- 1.102 

12. Venkateshwaran G, Harsha S, Ambika S, Cow urine-based green synthesis of sunlight-responsive ZrO2 -Bi2O3 and its application in photocatalysis of 2, 4-Dichlorophenoxyactetic acid in aqueous solution–Kinetics, mechanisms and sustainability analysis, Catalysis Communications, 106869, 2024 https://doi.org/10.1016/j.catcom.2024.106869 IF-3.7

13. Nidheesh P V, Kumar M, Venkateshwaran G, Ambika S, Bhaskar S, and Ghosh P, Conversion of locally available materials to biochar and activated carbon for drinking water treatment. Chemosphere, 353, 141566, 2024 https://doi.org/10.1016/j.chemosphere.2024.141566 IF-8.8

14. Ambika S et al., Management of tannery waste effluents towards the reclamation of clean water using an integrated membrane system: A state-of-the-art review, Environmental Research, 229, 15 July 2023, 115881  https://doi.org/10.1016/j.envres.2023.115881 IF-8.431

15. Ambika S et al., Waste to catalyst: Role of agricultural waste in water and wastewater treatment, Science of The Total Environment, 26, 2022, 159762 https://doi.org/10.1016/j.scitotenv.2022.159762 IF-14.1

16. Ambika S et al., A study on the removal of long chain perflourodecanoic acid in simulated aqueous solution using enhanced electrochemical technique: Metabolites, kinetic and isotherm model analysis, J Water Process Engg, 49, 2022, 103045  https://doi.org/10.1016/j.jwpe.2022.103045 IF-7.34

17. Ambika S et al., Modified biochar as a green adsorbent for removal of hexavalent chromium from various environmental matrices: Mechanisms, methods, and prospects, Chemical Engineering Journal, 439, 1, 2022, 135716 https://doi.org/10.1016/j.cej.2022.135716 IF-13.273

18. Ambika S, Jagratti, Shikar, Gaurav, Sustainability Assessment of Crops in India, Current Research in Environmental Sustainability, 2021 https://doi.org/10.1016/j.crsust.2021.100074

19. Ambika S, Srilekha, Eco-safe chemico-thermal conversion of industrial graphite waste to exfoliated graphene and evaluation as engineered adsorbent to remove toxic textile dyes, Env Adv., 2021, 1000072 https://doi.org/10.1016/j.envadv.2021.100072

20. Ambika S et al., Photocatalytic conversion of CO2 into beneficial fuels and chemicals – a new horizon in atmospheric CO2 mitigation, Process Safety and Environmental Protection, 156, 2021 https://doi.org/10.1016/j.psep.2021.10.003 IF-6.158

21. Ambika S, Radhin, Nihtin, Joel, Arun, Effect of pandemic based online education on teaching and learning system, Int. J Educational Development, 2021, 102444 IF-1.74 (Q1 Journal) https://doi.org/10.1016/j.ijedudev.2021.102444

22. Ambika S, Ananya, Rajeveer, Vijaya, Impact of COVID-19 on Health-Risk and Environmental Sustainability in India, Environmental Research, 26;196:110932, 2021 IF-6.498 https://doi.org/10.1016/j.envres.2021.110932

23. Ambika S et al., A State of Art in Photocatalytic Membrane-Based dye Removal from Water and Wastewater, ATIPC – 2020 special issue of Journal of Indian Chemical Society, 2021 IF-0.284

24. Ambika S et al., Engineered TiO2 photocatalyst – Mechanism, kinetics, and application in dye removal: A review, ATIPC – 2020 Special Issue J. Indian Chem. Soc., Vol. 97, 12b, 2021, 2730-2735 http://indianchemicalsociety.com/portal/uploads/journal/B-Dec-4.pdf IF-0.284 

25. Harsha SR, Ambika S, Advances in Engineered Design and Performance of Photocatalytic Membrane Reactor for Polluted Water, special issue of Journal of Indian Chemical Society, 2021, 2750-2757 http://indianchemicalsociety.com/portal/uploads/journal/B-Dec-6.pdf IF-0.284 

26. Ansaf VK, Ambika S, Graphene composites in photocatalytic oxidation of aqueous organic contaminants – A state of art, Process Safety and Environmental Protection, 2020, IF-6.158 https://doi.org/10.1016/j.psep.2020.08.042

27. Senthilnathan J, Ambika S, An upgraded electro-Fenton treatment of wastewater using nanoclay-embedded graphene composite prepared via exfoliation of pencil rods by submerged liquid plasma, Journal of Hazardous Materials, 397, 122788, J Haz Mat, 2020, IF-10.588 https://doi.org/10.1016/j.jhazmat.2020.122788

28. Ambika S, Devasena M, Nambi IM, Single-step removal of Hexavalent chromium and phenol using meso zerovalent iron, Single-step removal of Hexavalent chromium and phenol using meso zerovalent iron, Chemosphere, 248, 2020, 125912 IF-7.086 https://doi.org/10.1016/j.chemosphere.2020.125912

29. Jaganathan S, Ambika S*, Jechan Lee, Ki-Hyun Kim, Masahiro Yoshimura, Formation of highly porous electrochemically etched silicon carbide: A novel reusable adsort for air purification technology, Journal of Cleaner Production, 218, 2019, 521-528 IF-9.297 https://doi.org/10.1016/j.jclepro.2019.02.032

30. Ambika S*, Indumathi MN, Devasena M, Assessment of meso-zero-valent iron-catalyzed Fenton reaction in continuous-flow porous media for sustainable groundwater remediation, Chemical Engineering Journal, 334, 2018, 264-272. IF-13.273 https://doi.org/10.1016/j.cej.2017.10.046

31. Ambika S, Indumathi MN, Senthilnathan J, Low-Temperature Synthesis of Highly Stable and Reusable CMC-Fe2+(-nZVI) Catalyst for the Elimination of Organic Pollutants, Chemical Engineering Journal, 2016, 289 (1) 544–55. IF-13.273 https://doi.org/10.1016/j.cej.2015.12.063

32. Ansaf V Karim, Ambika S, Indumathi MN, Performance Enhancement of Zero Valent Iron-Based Systems Using Depassivators: Optimization and Kinetic Mechanisms, Water Research, 2016, 102, 436-444. IF-11.236 https://doi.org/10.1016/j.watres.2016.06.064

33. Ambika S, Indumathi MN, Devasena Sridhar, Synthesis and performance of High energy ball milled meso-zero-valent iron, Journal of Environmental Management, 2016, 1-9. IF-6.789 https://doi.org/10.1016/j.jenvman.2016.06.054

34. Ambika S*, Indumathi MN, Optimized synthesis of methanol-assisted nZVI for assessing reactivity by systematic chemical speciation approach at neutral and alkaline conditions, Journal of Water Process Engineering 13, 2016, 107–116. IF-5.485 https://doi.org/10.1016/j.jwpe.2016.08.011

35. Ambika S, Shruti, Aparna, Anjali, Archana, Assessment of Alternate Crops for Bioenergy Extraction In India, Agriculture, Ecosystem and Environment, Elsevier (Under Revision)

36. Ambika S, Ananya, Vijaya, Sneha, Uranium Contamination in India, Science of Total Environment (Under Review)

37. Ambika S, Nanika, Kritika, Development of Sustainability and Circular Economy Indices in Agricultural System, Agriculture, Ecosystem and Environment, Elsevier (Under Revision)

BOOK CHAPTERS

1. Venkateshwaran G, Ambika S, Metal–Organic Framework (MOF)-Based Photocatalysts for Pharmaceutical Wastewater Treatment, Taylor and Francis, 2024

2. Venkateshwaran G, Ambika S, Role of biochar in achieving climate resilience and climate change mitigation, Biochar Amendments for Environmental Remediation, CRC press, 2024

3. Catherine Chakkalakkal, Benita Nishil, V Vishnudatha,  Ambika S, Life Cycle Assessment of Edible Water Blobs Using OpenLCA, Recent Adavnces in Civil Engineering,  CRC Press, Chapter 10,  2024, https://doi.org/10.1201/9781032657271

4. Vishnudatha V, B Nishil, C Chakkalakkal, Ambika S, Comparative Lifecycle Assessment of Alcohol-Based Hand Sanitizers Using Open LCA, Recent Advances in Civil Engineering, CRC Press, Chapter 13,  2024, https://doi.org/10.1201/9781032657271

5. Venkateshwaran G, Ambika S, Metal-Organic Framework (MOF) based photocatalysts for pharmaceutical wastewater treatment, Advanced Materials for Pharmaceutical Wastewater Treatment, Routledge Publishers, Chapter 9, 2023, https://www.routledge.com/Advanced-Materials-for-Pharmaceutical-Wastewater-Treatment/Nidheesh-Hassani/p/book/9781032373232, ISBN 9781032373232 (accepted; will be published in Sep 4 2024)

6. Ambika S, Risk, Reliability and Sustainable Remediation in the Field of Civil and Environmental Engineering, Integrated sustainability impact assessment of trickling filter, Chapter 7, 2022, 93-109, https://doi.org/10.1016/B978-0-323-85698-0.00003-4

7. Ambika S et al., Progression and Application of Photocatalytic Membrane Reactor for Dye Removal: An Overview, Membrane Based Methods for Dye Containing Wastewater, Sustainable Textiles: Production, Processing, Manufacturing & Chemistry Book, pp 49-77, Springer,  https://doi.org/10.1007/978-981-16-4823-6_4

8. Ambika S et al., Carbonaceous-TiO2 Photocatalyst for Treatment of textile Dye-Contaminated Wastewater”, Advanced Oxidation Processes in Dye-containing Wastewater Book, Volume 1, Springer, 2021 [Accepted]

9. Ambika S, Nambi IM, ZVI Mediated Removal of Cr(VI) and Phenol: A Sustainable Treatment Technology Coupling Chemical Redox System and Fentons AOP, 45th Annual Meeting of Mutagenesis and Genomic Society, Environmental and Molecular Mutagenesis, 55, 2014, IF: 3.131  https://doi.org/10.1002/em.21895

10. Ambika S et al., A State of Art in Photocatalytic Membrane-Based dye Removal from Water and Wastewater,  2 nd International Conference on Advanced Technologies for Industrial Pollution Control (ATIPC-2020)

11. Harsha SR,  Ambika S, Advances in Engineered Design and Performance of Photocatalytic Membrane Reactor for Polluted Water,  2 nd International Conference on Advanced Technologies for Industrial Pollution Control (ATIPC-2020)

12. Ambika S, Indumathi MN, Series removal of heavy metal and aromatic compound from contaminated groundwater using zero-valent iron(ZVI), Urban Ecology, Water Quality, and Climate Change, 2018. https://doi.org/10.1007/978-3-319-74494-0_31

CONFERENCES

1. Venkateshwaran G, Ambika S, Chemical-Free Stable and Multifunctional Electro-Based System for Treatment of Pesticides from Aqueous Solution, 245th ECS Meeting, USA, May 26-30, 2024 https://ecs.confex.com/ecs/245/meetingapp.cgi/Paper/185715

2. Venkateshwaran G, Ambika S, Are Electrochemical Systems the Answer for PFAS Destruction? 245th ECS Meeting (May 26-30, 2024), 2024 https://ecs.confex.com/ecs/245/meetingapp.cgi/Paper/186586

3. Ambika S, Chatherine C, Fate and Transport of Ubiquitous Pollutants in the Soil Environment,  Goldschmidt 2023, https://doi.org/10.7185/gold2023.13616

4. Ambika S, Treatment approaches for the removal of Per- and Polyfluoroalkyl substances from water – A critical review” in International Conference on Environmental Science and Engineering (ICESE) – 2022, IIT Bombay (proceedings)

5. Ambika S & Nambi IM, Fenton Reaction as a Tool for in situ Contaminant Remediation – Laboratory Analysis on Fit for Purpose, Goldschmidt 2020, https://doi.org/10.46427/gold2020.48

6. Ambika S, Senthilnathan J, A Novel rGO-CMC-Fe2+(ZVI) Hybrid For Highly Stable And Reusable Electrode For The Electrochemical Oxidation Of Organic Pollutants Synthesis, 2nd International Conference on BEEM 2018, S. Korea, June 10-13 2018. (online Proceedings)

7. Senthilnathan J, Ambika S, 2018. One-Step Synthesis of Nitrogen Functionalized Graphene by Submerged Liquid Plasma Process - A low-temperature Synthesis of catalyst for mixed pollutants removal, 2nd International Conference on BEEM 2018, South Korea on June 10-13 2018. (online Proceedings)

8. Ambika S, Indumathi MN, Senthilnathan J, 2017. Formation of rGO-CMC-Fe2+(-nZVI) hybrid for highly stable and reusable electrode for the electrochemical oxidation of organic pollutants, International Conference on TECHNOVA-2017 Nehru University, New Delhi, on 30th Dec 2017. (proceedings)

9. Ambika S, Indumathi MN, Senthilnathan J, 2017. Formation of nitrogen functionalized graphene by submerged liquid plasma process – A low-temperature synthesis' in International Conference on TECHNOVA-2017, Nehru University, New Delhi, 30th Dec 2017. (proceedings)

10. Ambika S, Indumathi MN, Senthilnathan J, 2017. Formation of rGO-CMC-Fe2+(-nZVI) hybrid for highly stable and reusable electrode for the electrochemical oxidation of organic pollutants in International Conference on TECHNOVA-2017, New Delhi, 30th Dec 2017. (proceedings)

11. Ambika S, Indumathi M Nambi, Sustainable Permeable Reactive Barrier (PRB) for synchronized removal of heavy metal and organic matter for wetland remediation – a systematic chemical speciation approach, Goldschmidt2015 Abstracts, 2015, Goldschmidt2015, Prague, Czech Republic, 2015 (online publication)

12. Ambika S, I Indumathi M Nambi, Sustainable Permeable Reactive Barrier (PRB) for Wetland Remediation - A systematic Chemical Approach 10thAsia-Oceania Top University League on Engineering, NTU Singapore, November 1-3, 2015 (proceedings)

13. Ambika S, Indumathi M Nambi, ZVI Mediated Removal of Cr(VI) and Phenol: A Sustainable Treatment Technology Coupling Chemical Redox System and Fentons AOP,  45th Annual Meeting -  Environmental Mutagenesis and Genomics Society, Florida, USA, 2015

14. Ambika Selvaraj, Indumathi M Nambi, 2014. A Novel Permeable Reactive Barrier (PRB) for Simultaneous and Rapid Removal of Heavy Metal and Organic Matter – A Systematic Chemical Speciation Approach on Sustainable Technique for Pallikarani Marshland Remediation, AGU Fall Meeting, 2014, San Francisco, USA. (published-online) 

15. I.M. Nambi, S. Ambika, 2012. Sustainable Treatment Technology Using Nanostructured Iron for Combined Removal of Heavy Metal and Organic Chemicals. Proceedings from the Sixth International Conference on Environmental Science and Technology, Vol. I, American Science Press, Houston, USA. ISBN: 9780976885351. (published-online) 

16. Ambika Selvaraj, Indumathi M Nambi,  Sustainable Permeable Reactive Barrier (PRB) for Wetland Remediation - A Systematic Chemical Approach, 10thAsia-Oceania Top University League on Engineering (AOTULE 2015), NTU Singapore, November 1-3, 2015. (proceedings)

17. Ambika Selvaraj, Indumathi M Nambi, Study on Speciation and Mechanisms during Hexavalent Chromium Reduction using Granular and Sustainable Detoxification of Hexavalent Chromium and Phenol by Advanced Redox Processes Using gZVI and ncZVI' in Second International Conference on 'Advanced Oxidation Processes (AOP 2012), Kottayam, India during 5-8th Oct 2012(proceedings) Sustainable treatment technology using nanostructured iron for combined removal of heavy metal and organic chemicals

18. Nambi IM,  Ambika S , Sustainable treatment technology using nanostructured iron for combined removal of heavy metal and organic chemicals, Proceedings from the Sixth International Conference on Environmental Science and Technology, Houston, USA., 2012, American Science Press (online proceedings)

19. Ambika Selvaraj, Indumathi M Nambi, Series Removal of Heavy Metal and Aromatic Compound from Contaminated Groundwater using Zero Valent Iron' at Environmentally Sustainable Urban Ecosystems (ENSURE2012), IIT Guwahati, India during 24-26 Feb 2012. (proceedings)