Dr. Sankha Chakrabortty, Assistant Professor, School of Biotechnology/Chemical Technology, KIIT Deemed to be University, is a distinguished researcher in the fields of Environmental Engineering, Membrane Technology, and Green Technology. Dr. Chakrabortty is a former DST INSPIRE Fellow and DST-National Post-Doc Fellow with more than ten years of experience in water treatment and energy technology. He is collaborating with a number of high-profile Indian professors and scientists, as well as professors from South Korea and the United States. He has published his study in more than 37 SCI/SCOPUS indexed journals with high impact factors, and he has filed six patents based on his research advancement, one of which was awarded last year. Dr. Chakrabortty also shared twelve book chapters. As a Co-Editor, he has recently published one book. For his research contributions, he has received 15 awards/achievements and certificates from various organisations.
EDUCATION
B.Tech, M.Tech (Gold Medalist), PhD in Chemical Engineering, Post-Doc
Coupling adsorption (batch+column) experiments, CFD modeling, and molecular docking for efficient dye remediation using Zinc-activated Phosphogypsum beads Anurag Panda, Shritee Mishra, Supriya Jena, Jitendra Kumar Patel, Shirsendu Banerjee, Darpan Borah, Ramesh Kumar, Moonis Ali Khan, Byong-Hun Jeon, Sankha Chakrabortty, Suraj K. Tripathy Environmental Engineering Research, 2026 This study proposes a sustainable method for malachite green (MG) removal using zinc-treated phosphogypsum (PG) beads. Phosphogypsum, a phosphate-fertilizer by-product, was activated with ZnCl<sub>2</sub> and thermally treated to enhance porosity, surface acidity, and available binding sites. Characterization through XRD, FTIR, BET, and zeta potential confirmed the structural and surface modifications enabling superior adsorption performance. Batch and column studies revealed that pH, adsorbent dosage, flow rate, and bed height strongly influenced MG removal, achieving over 90% efficiency at 7 cm bed height and 10 mL/min flow rate. Kinetics followed a pseudo-second-order model, with the Temkin isotherm indicating chemisorption. Thomas and Yoon–Nelson models fit well (R² = 0.98), while Clark showed the best breakthrough prediction (R<sup>2</sup>=0.99). Adams–Bohart provided only moderate agreement. CFD simulations confirmed that the 7 cm bed height generated the most uniform flow, longest residence time, and minimal channeling, enabling efficient MG transport to active sites. Stable turbulence and porosity profiles enhanced external mass transfer, supporting the high experimental removal efficiency (>90%). Molecular docking showed strong electrostatic attraction between MG cations and negatively charged Si–O⁻, Al–O⁻, and S–O⁻ groups on ZnCl<sub>2</sub>-treated PG beads.
Process optimization and techno-economic evaluation of a nanomembrane–AOP hybrid semi-pilot system for antibiotic abatement Shrabana Pal, Shaikh Z. Ahammad, Sankha Chakrabortty, Parimal Pal Canadian Journal of Chemical Engineering, 2026 A continuous hybrid treatment system on integration of cross‐flow flat‐sheet nanofiltration (NF) membrane system with persulphate‐based oxidation was developed for efficient removal and degradation of antibiotic residues from water. The cross‐flow configuration significantly reduced fouling through enhanced surface sweeping, enabling stable operation. Antibiotic rejection increased with transmembrane pressure and cross‐flow rate, confirming uncoupled solute–solvent transport in NF. Maximum permeate fluxes of 352, 188, and 136 L m −2 h −1 were obtained for NF‐2, NF‐20, and NF‐1 membranes, respectively, at 14 bar and 800 LPH. Overall rejection exceeded 96%–98%, following the order azithromycin > ofloxacin > ciprofloxacin. Azithromycin rejection was dominated by steric hindrance, while ciprofloxacin and ofloxacin were mainly rejected through Donnan and electrostatic exclusion mechanisms. Optimal performance was achieved at pH 9, where all antibiotics existed in anionic form and strong charge repulsion dominated separation. The NF concentrate was subsequently treated using persulphate oxidation, and process parameters were optimized via response surface methodology. Under optimized conditions (persulphate 6.1 mg L −1 , flow rate 36 mL min −1 , residence time 40 min), degradation efficiencies of 98.88% for azithromycin, 97.96% for ofloxacin, and 97.65% for ciprofloxacin were achieved. The results demonstrate a robust, low‐fouling, and scalable tertiary treatment strategy for antibiotic‐contaminated water.
AgNP-chitosan hydrogel as a novel antibacterial and wound healing material against methicillin-resistant Staphylococcus aureus Bhumika Jena, Gausal A. Khan, Pallabi Punyatoya Sahoo, Swati Sucharita Singh, Sankha Chakrabortty, Susanta Kumar Behera, Suraj K. Tripathy, Amrita Mishra Journal of Biomaterials Applications, 2026 Methicillin-resistant Staphylococcus aureus (MRSA), which is resistant to many of the antibiotics used in clinical settings, has emerged as a significant concern in healthcare and the treatment options for MRSA infections are becoming increasingly limited. There is an urgent need for novel systems to combating MRSA. Nanotechnology inspired interventions might possibly overcome the defense mechanisms used by MRSA, resulting in more successful treatment techniques. A unique strategy involved the fabrication of Ag nanoparticles (NPs) derived from Urginea indica and combined with chitosan. The resulting Ag-chitosan hydrogel was assessed using UV and FTIR spectroscopy, as well as zeta potential measurement. The hydrogel’s efficacy against targeted bacteria and biofilms was investigated, revealing its method of action. Furthermore, the biological compatibility of the material with cell lines was analyzed for potential uses. These studies were supplemented by in vitro infection trials and in vivo assessments utilizing a Balb/c mouse model. Overall, the comprehensive analysis confirmed the Ag-chitosan hydrogel’s ability to promote wound healing. Notably, adding U. indica-derived Ag NPs and chitosan significantly increased the hydrogel’s therapeutic potential.
Application of surface-modified clay in a custom reactor for efficient dye removal from water: adsorption behavior and mechanistic insights Subhasis Patra, Anurag Panda, Abhrajit Chatterjee, Shirsendu Banerjee, Anuradha Upadhyaya, Jayato Nayak, Rahul S Tanpure, Byong-Hun Jeon, Ramesh Kumar, Sankha Chakrabortty, Suraj K Tripathy Environmental Research Communications, 2026 The study investigates the efficacy of surface-modified (thermally) clay as an inexpensive adsorbent for removing Malachite green (MG) dye, utilizing a customized annular reactor to improve adsorption efficiency. Natural clay collected from the banks of the Ganga River was subjected to calcination at temperatures ranging from 200 °C to 500 °C, with 500 °C determined to be best for enhancing porosity, surface area (100.50 nm crystallite size), and stability, as validated by XRD, FTIR, TEM, TGA, and BET analyses. The annular reactor, which includes concentric glass chambers with a 3 cm annular gap and 1.8 cm vertical clearance, was chosen for its enhanced fluid dynamics, uniform adsorbate distribution, and reduced dead zones, optimizing contact between dye molecules and adsorbent. Batch investigations conducted under optimum conditions (1 g l −1 adsorbent, 50 mg l −1 dye, 200 rpm, 30 °C, 90 min) achieved a 98% removal efficiency, corroborated by response surface methodology (R 2 > 0.97). Adsorption agreed with the Langmuir isotherm (R 2 = 0.99) and exhibited pseudo-second-order kinetics, signifying chemisorption-induced monolayer development. The Shrinking Core Model determined that pore-film diffusion is the rate-limiting factor (Biot number: 0.00039–0.0019). Thermodynamic analysis verified exothermic (ΔH = −12.45 kJ mol −1 ), and spontaneous (ΔG = −8.34 kJ mol −1 ) adsorption. The adsorbent maintained 88.56% efficiency across five cycles, and ecotoxicity assessments verified the safety of the treated water. The design of the annular reactor, which integrates regulated flow dynamics and scalable modularity, was crucial in attaining improved adsorption performance. This study emphasizes thermally modified clay as a sustainable and economical approach for dye wastewater treatment, with the annular reactor providing an excellent basis for enhancing adsorption technology in environmental remediation.
Integrated approaches in industrial waste(s)/water with zero discharge Sankha Chakrabortty, Dorcas Wanja Njeri, Elinah Awino, Jayato Nayak, Shirsendu Banerjee, Prasenjit Chakraborty Integrated Biotechnological Solutions for the Treatment of Industrial Wastewater for A Healthy and Sustainable Environment, 2025
Microorganism-Enhanced Recovery of Zinc from Mining Waste Somanchi Venkata Ramalakshmi, Aradhana Basu, Sankha Chakrabortty, Jayato Nayak Advanced Bioseparation of Industrial Wastes Sustainable Recovery of High Value Metal Ions, 2024
Bio-Recovery of Nickel from Acid Mine Drainage Shirsendu Banerjee, Suraj K. Tripathy, Sankha Chakrabortty, Jayato Nayak Advanced Bioseparation of Industrial Wastes Sustainable Recovery of High Value Metal Ions, 2024
Role of nanotechnology in environmental cleaning Jayato Nayak, Sankha Chakrabortty Clean Technologies Toward A Sustainable Future Physicochemical Biochemical and Biotechnological Approaches, 2023
Chemical stabilization of oil by elastomizers Sankha Chakrabortty, Jayato Nayak, Prasenjit Chakraborty Advances in Oil Water Separation A Complete Guide for Physical Chemical and Biochemical Processes, 2022
Nanomaterials for CO2 capture Sankha Chakrabortty, Jayato Nayak, Prasenjit Chakraborty, Parimal Pal, Biswajit Ruj Nanomaterials for Co2 Capture Storage Conversion and Utilization, 2021
Coupling adsorption (batch+ column) experiments, CFD modeling, and molecular docking for efficient dye remediation using Zinc-activated Phosphogypsum beads A Panda, S Mishra, S Jena, JK Patel, S Banerjee, D Borah, R Kumar, ... Environmental Engineering Research 31 (4) , 2026 2026
Superheated non-catalytic transesterification of binary mixture of Madhuca indica and waste cooking oil towards biodiesel synthesis B Karmakar, RP Chatterjee, D Rhithuparna, S Chakrabortty, RIA Khan, ... Biomass and Bioenergy 210, 109025 , 2026 2026
AI-Integrated reactor engineering and molecular insights for efficient adsorptive removal of Coomassie brilliant blue G using NiO nanoparticles S Mishra, G Khan, D Borah, JK Patel, K Roy, J Nayak, R Chakraborty, ... Chemical Engineering and Processing-Process Intensification, 110794 , 2026 2026
Process optimization and techno‐economic evaluation of a nanomembrane–AOP hybrid semi‐pilot system for antibiotic abatement S Pal, SZ Ahammad, S Chakrabortty, P Pal The Canadian Journal of Chemical Engineering , 2026 2026
Facile synthesis, characterisation and applications of bio-polymer immobilized Zn-modified bauxite residue beads for malachite green dye removal: batch and column studies with … A Chatterjee, A Panda, D Borah, JK Patel, S Banerjee, BK Satpathy, ... International Journal of Environmental Analytical Chemistry, 1-31 , 2026 2026
Application of surface-modified clay in a custom reactor for efficient dye removal from water: adsorption behavior and mechanistic insights S Patra, A Panda, A Chatterjee, S Banerjee, A Upadhyaya, J Nayak, ... Environmental Research Communications 8 (1), 015016 , 2026 2026
Enhanced treatment strategies for bisphenol a from thermal paper: Integrating advanced technologies in wastewater treatment systems A Upadhyaya, P Malik, S Paitandi, S Chakrabortty Decarbonization of Wastewater Pollutants as a Sustainable Solution, 309-330 , 2026 2026
Pulsations in gas–liquid mass transfer: a comprehensive review in the enhancement of CO 2 absorption C Pattnaik, S Roy, R Kumar, P Pahari, BH Jeon, S Banerjee, ... Environmental Technology Reviews 14 (1), 213-239 , 2025 2025 Citations: 3
Emerging approaches on biomass and water-based hydrogen production and downstream recovery pathways: a review on recent challenges and prospects R Kumar, P Chakraborty, PK Singh, S Chakrabortty, SK Tripathy, ... Reviews in Environmental Science and Bio/Technology 24 (4), 957-1018 , 2025 2025 Citations: 5
Sustainable lithium extraction from liquid ores using membrane-based technologies: a review R Kumar, KW Choi, MA Khan, G Biswas, SH Cho, S Chakrabortty, ... Environmental Chemistry Letters 23 (6), 1569-1660 , 2025 2025 Citations: 16
AgNP-chitosan hydrogel as a novel antibacterial and wound healing material against methicillin-resistant Staphylococcus aureus B Jena, GA Khan, PP Sahoo, SS Singh, S Chakrabortty, SK Behera, ... Journal of Biomaterials Applications, 08853282261416075 , 2025 2025
Porosity refinement and intensification of triarylmethane dyes adsorption on bauxite residue via chemical activation: parametric optimization and theoretical insights A Chatterjee, A Panda, S Patra, A Upadhyaya, S Banerjee, A Mishra, ... Arabian Journal of Chemistry 18 , 2025 2025
AI-driven optimization of the heterogeneous Sono-Fenton process for intensification of bacterial inactivation GC Mahapatra, A Panda, S Chakrabortty, S Banerjee, A Mishra, R Kumar, ... Journal of Environmental Chemical Engineering, 118784 , 2025 2025
Biodiesel synthesis from Ricinus communis and Pongamia pinnata oil blends by injecting superheated methanol–isopropanol mixtures: Optimization through CCD and ANN approaches B Karmakar, S Chakrabortty, R Kumar, G Halder Renewable Energy 249, 123223 , 2025 2025 Citations: 5
Parametric optimizations of genotoxic dye sorption using zinc-activated rice straw-derived cellulose: a study aligned with circular economy goals (SDG 12) A Upadhyaya, A Panda, S Roy, R Kumar, M Otero, P Chakraborty, ... Cellulose 32 (12), 7377-7413 , 2025 2025 Citations: 2
A multi-approach study on CO2 absorption in packed beds: Theoretical, experimental, and CFD perspectives on gas phase pulsation C Pattnaik, R Kumar, MA Khan, P Pahari, A Banik, BH Jeon, S Banerjee, ... Journal of Industrial and Engineering Chemistry 146, 641-655 , 2025 2025 Citations: 8
Microplastic pollution: a global environmental crisis impacting marine life, human health, and potential innovative sustainable solutions P Karak, A Parveen, A Modak, A Adhikari, S Chakrabortty International Journal of Environmental Research and Public Health 22 (6), 889 , 2025 2025 Citations: 24
Potential Ecological Paraffin and Wax Degrading Bacterial Strains and Their Characterizations G Patil, S Chakrabortty, S Banerjee Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil … , 2025 2025
Advanced Environmental Nanotechnology for the Degradation Waxes, Asphaltenes and Paraffins in Oil and Gas Industries A Kumar, S Patra, S Chakrabortty, SK Tripathy Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil … , 2025 2025
Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil Flow Assurance S Banerjee, S Chakrabortty, J Nayak, SK Tripahy, M Shah Springer Nature , 2025 2025 Citations: 1
MOST CITED SCHOLAR PUBLICATIONS
A review on the treatment of textile industry waste effluents towards the development of efficient mitigation strategy: An integrated system design approach M Behera, J Nayak, S Banerjee, S Chakrabortty, SK Tripathy Journal of Environmental Chemical Engineering 9 (4), 105277 , 2021 2021 Citations: 420
Removal of fluoride from contaminated groundwater by cross flow nanofiltration: Transport modeling and economic evaluation S Chakrabortty Desalination 315, 115-124 , 2013 2013 Citations: 173
Technological advancements in the pretreatment of lignocellulosic biomass for effective valorization: A review of challenges and prospects P Chakraborty, R Kumar, S Chakrabortty, S Saha, S Chattaraj, S Roy, ... Journal of Industrial and Engineering Chemistry 137, 29-60 , 2024 2024 Citations: 126
Sustainable recovery of high-valued resources from spent lithium-ion batteries: A review of the membrane-integrated hybrid approach R Kumar, S Chakrabortty, P Chakrabortty, J Nayak, C Liu, MA Khan, ... Chemical Engineering Journal 470, 144169 , 2023 2023 Citations: 107
A nanofiltration–coagulation integrated system for separation and stabilization of arsenic from groundwater P Pal, S Chakrabortty, L Linnanen Science of the Total Environment 476, 601-610 , 2014 2014 Citations: 98
Photocatalytic conversion of CO2 to methanol using membrane-integrated green approach: a review on capture, conversion and purification S Chakrabortty, J Nayak, B Ruj, P Pal, R Kumar, S Banerjee, M Sardar, ... Journal of Environmental Chemical Engineering 8 (4), 103935 , 2020 2020 Citations: 87
Advancing pharmaceutical wastewater treatment: A comprehensive review on application of catalytic membrane reactor-based hybrid approaches R Kumar, E Awino, DW Njeri, A Basu, S Chattaraj, J Nayak, S Roy, ... Journal of Water Process Engineering 58, 104838 , 2024 2024 Citations: 73
Strategic management of nitrate pollution from contaminated water using viable adsorbents: An economic assessment-based review with possible policy suggestions B Bishayee, RP Chatterjee, B Ruj, S Chakrabortty, J Nayak Journal of environmental management 303, 114081 , 2022 2022 Citations: 72
Management of tannery waste effluents towards the reclamation of clean water using an integrated membrane system: A state-of-the-art review R Kumar, A Basu, B Bishayee, RP Chatterjee, M Behera, WL Ang, P Pal, ... Environmental research 229, 115881 , 2023 2023 Citations: 66
Separating cyanide from coke wastewater by cross flow nanofiltration R Kumar, P Bhakta, S Chakraborty, P Pal Separation Science and Technology 46 (13), 2119-2127 , 2011 2011 Citations: 61
Sorptive removal of malachite green from aqueous solution by magnetite/coir pith supported sodium alginate beads: Kinetics, isotherms, thermodynamics and parametric optimization S Sarkar, N Tiwari, A Basu, M Behera, B Das, S Chakrabortty, K Sanjay, ... Environmental Technology & Innovation 24, 101818 , 2021 2021 Citations: 56
Green synthesis of MeOH derivatives through in situ catalytic transformations of captured CO2 in a membrane integrated photo-microreactor system: A state-of-art review for … S Chakrabortty, R Kumar, J Nayak, BH Jeon, SK Dargar, SK Tripathy, ... Renewable and Sustainable Energy Reviews 182, 113417 , 2023 2023 Citations: 55
A novel membrane-integrated sustainable technology for downstream recovery of molybdenum from industrial wastewater R Kumar, C Liu, GS Ha, KH Kim, S Chakrabortty, SK Tripathy, YK Park, ... Resources, Conservation and Recycling 196, 107035 , 2023 2023 Citations: 53
Photocatalytic degradation of malachite green using TiO2 and ZnO impregnated on fecal sludge derived biochar N Tiwari, S Chakrabortty, K Samal, S Moulick, BG Mohapatra, S Samanta, ... Journal of the Taiwan Institute of Chemical Engineers 145, 104800 , 2023 2023 Citations: 52
Transformation of agro-biomass into vanillin through novel membrane integrated value-addition process: a state-of-art review J Nayak, A Basu, P Dey, R Kumar, A Upadhaya, S Ghosh, B Bishayee, ... Biomass Conversion and Biorefinery 13 (16), 14317-14340 , 2023 2023 Citations: 48
Downstream process: toward cost/energy effectiveness R Kumar, R Dhurandhar, S Chakrabortty, AK Ghosh Handbook of biofuels, 249-260 , 2022 2022 Citations: 44
Transforming nanomaterial synthesis through advanced microfluidic approaches: a review on accessing unrestricted possibilities S Roy, R Kumar, A Acooli, S Roy, A Chatterjee, S Chattaraj, J Nayak, ... Journal of Composites Science 8 (10), 386 , 2024 2024 Citations: 43
An economical strategy towards the managing of selenium pollution from contaminated water: A current state-of-the-art review B Ruj, B Bishayee, RP Chatterjee, A Mukherjee, A Saha, J Nayak, ... Journal of environmental management 304, 114143 , 2022 2022 Citations: 42
Treating complex industrial wastewater in a new membrane-integrated closed loop system for recovery and reuse R Thakura, S Chakrabortty, P Pal Clean Technologies and Environmental Policy 17 (8), 2299-2310 , 2015 2015 Citations: 41
Modelling forward osmosis-nanofiltration integrated process for treatment and recirculation of leather industry wastewater P Pal, M Sardar, M Pal, S Chakrabortty, J Nayak Computers & Chemical Engineering 127, 99-110 , 2019 2019 Citations: 37
GRANT DETAILS
1. DST-INSPIRE Fellowship for Doctoral Study: DST INDIA
2. National Post-Doctoral Fellowship for Post Doctoral Study: DST India
3. Dr. DS KOTHARI POST DOC FELLOWSHIP for Post Doctoral Study: UGC INDIA
4. START-UP RESEARCH GRANT under UGC-FACULTY RESEARCH PROMOTION SCHEME: UGC INDIA
RESEARCH OUTPUTS (PATENTS, SOFTWARE, PUBLICATIONS, PRODUCTS)
Patents Granted: 02
Patents Filed: 06
Industry, Institute, or Organisation Collaboration
Collaboration with NIT Durgapur, Jadavpur University, CSIR-CMERI (India), Hanyang University (South Korea)
