Recent advances in ZnO based photocatalysts for industrial dye degradation Andriambahiny Ranto Ny Aina, Harry Patel, Subhajit Aich, Biplab Roy, Niladri Shekhar Samanta, Biswadeep Pal Discover Applied Sciences, 2025 Various wastewater treatment techniques are being introduced to minimize the degradation of pollutants. The photocatalytic process is a promising technique for its best possible use of solar energy and being eco-friendly to the environment. Photocatalytic techniques with chemical approaches, nanotechnology, and semi-conductors are considered as sustainable and cost-effective methods. ZnO, a wide-bandgap semiconductor, has garnered considerable interest owing to its elevated photocatalytic efficacy, affordability, low toxicity, and ecological compatibility. However, its actual implementation has been constrained by issues including strong electron–hole coupling and restricted visible light absorption. Recent advancements in ZnO-based photocatalysts aim to overcome these limits by many tactics, such as metal/non-metal doping, heterojunction creation, surface alteration, and nanotechnologies. This review focused on ZnO-based photocatalyst used in dye degradation. Advancements in photocatalytic process as well as hybrid technique are discussed for better efficiency and stability. Various factors like catalyst dosage, pH, temperature, and dye concentration on the degradation process affecting the photocatalytic processes are discussed. Furthermore, the process is easy, non-toxic, and can be associated with a zero waste discharge policy for industrial applications. Challenges are summarized in terms of scalability, health, and safety in addition to fulfilling the growing need for uncontaminated water for multipurpose use. Despite the sustainable processes for mitigation of wastewater, India continues to experience contamination due to its complex behavior.
Used oil disposal Biswadeep Pal Lubricant Technology Fundamentals and Applications, 2025 Effective methods for handling, managing, reusing, and recycling used oil have been a critical aspect of environmental management, with an emphasis on sustainable practices. Recycling and re-refining have emerged as prominent approaches for managing used oil. The recycled oil has been employed as a lubricant in various applications, thereby reducing the necessity for new oil production and conserving valuable resources. Re-refining, on the other hand, has involved an extensive process of removing contaminants, additives, and impurities from used oil, resulting in the production of high-quality base oil when blended with additives. The implementation of these effective oil disposal methods and practices has been vital for safeguarding the environment and promoting sustainability. Responsible collection, storage, recycling, and re-refining techniques have all been part of the strategy to minimize the adverse impact of used oil on ecosystems and human health. By adopting these disposal methods and promoting the reuse and recycling of used oil, we have contributed to the preservation of natural resources and the reduction of pollution.
A REVIEW ON THE REMOVAL OF ANIONIC DYES FROM WASTEWATER Andriambahiny RN Aina, Het Patel, Biswadeep Pal Iet Conference Proceedings, 2025 This critical review investigates on the recent advancements of anionic dyes removal from wastewater through adsorption processes. It concerns the water pollution and the environmental implications of dye contaminants necessitate effective remediation strategies. Various factors like pH, contact time, dosage, temperature, adsorption mechanisms, kinectic and isotherm studies, and efficiency under varying parameters. This review shows current knowledge and outlines some potential research, presenting a comprehensive undestanding of the state of dye removal technologies and their implication in wastewater treatment.
CURRENT REVIEWS OF VARIOUS AI TECHNIQUES USED FOR DYE ADSORPTION Het Patel, Raj Patel, Andriambahiny R. N. Aina, Biswadeep Pal Iet Conference Proceedings, 2025 Textiles, cosmetics, food, and pharmaceuticals industries are major sources of synthetic organic dyes due to their stability, cost-effectiveness, and vibrant colors. However, their widespread usage contributes significantly to environmental pollution, particularly in aquatic ecosystems. Conventional wastewater treatment methods, including adsorption, membrane separation, and Biosorption process are often expensive with limited efficiency and generate hazardous by-products. Application of Artificial intelligence (AI) including artificial neural networks (ANNs), convolutional neural networks (CNNs), and support vector machines (SVMs), offer promising solutions for optimizing dye wastewater treatment. Hybrid techniques integrating adsorption with biodegradation or membrane separation further improve dye removal performance. This review highlights the role of AI in adsorption technologies for sustainable wastewater treatment. It has been shown that ANN based model approach is used by most of the researcher due to its easy to use, more accuracy.
IMPROVEMENT OF THE FLOW BEHAVIOUR OF PARAFFIN OIL WITH THE HELP OF NATURAL DERIVED POLYMER Jayvirsinh Jadeja, Akshit Mendpara, Preet Makwana, Het Patel, Prince R. Chauhan, et al. Iet Conference Proceedings, 2025 Wax deposition poses a major challenge in crude oil transportation, particularly in offshore fields where low temperatures lead to pipeline blockages and production losses. Chemical additives such as Pour Point Depressants (PPDs) and Flow Improvers (FIs) have been used to incerase crude oil flowability. This study aims paraffinic-based mineral oil and investigates the effectiveness of a castor oil-based additive, Cold Flow Improver (COMAE), synthesized through transesterification and polymerization. The pour point and cloud point of paraffin oil were recorded at -21°C and -17°C, respectively. With 4.8 mL COMAE, the pour point decreased to -27°C and cloud point -24°C, demonstrating optimal performance. Viscosity analysis showed a 14.72% reduction at 20°C and 36.32% at 30°C with 4.8. mL COMAE. The paraffin inhibition efficiency (PIE) increased from 1.8% at 20°C to 9.58% with 1.2 mL COMAE, while a 4.8 mL dosage resulted in a maximum PIE of 15.06% at 20°C and 19.63% at 30°C. The results confirm that COMAE effectively reduces wax deposition, enhancing paraffin oil flowability. This study highlights the potential of bio-based additives as a sustainable alternative to conventional chemical flow improvers in crude oil transportation.
Evaluation of Modified EVA-MA Copolymer as a Flow Improver in Waxy Crude Oil B Pal, TK Naiya Research Journal of Chemistry and Environment 30 (4), 79-83 , 2026 2026
Novel Zinc Orthotitanate photocatalyst: Synthesis, characterization and photocatalytic degradation of Methylene Blue dye A Raval, H Patel, OK Mahadwad, B Pal Journal of the Indian Chemical Society, 102155 , 2025 2025 Citations: 1
A mini-review on photo-catalysis for sustainable dye degradation and water treatment H Patel, B Pal, VK Sandhwar AIP Conference Proceedings 3288 (1), 060005 , 2025 2025
Recent advances in ZnO based photocatalysts for industrial dye degradation ARN Aina, H Patel, S Aich, B Roy, NS Samanta, B Pal Discover Applied Sciences 7 (9), 977 , 2025 2025 Citations: 24
Used oil disposal B Pal Lubricant Technology, 231-253 , 2025 2025
Water scarcity and climate change in intelligent infrastructure and smart materials: sustainable technologies for a greener future B Pal Intelligent Infrastructure and Smart Materials: Sustainable Technologies for … , 2025 2025 Citations: 3
Challenges During Production, Storage, and Transportation of Waxy and Heavy Crude Oils Due to Organic Deposition B Pal, TK Naiya Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil … , 2025 2025 Citations: 3
The chemistry of wax formation, agglomeration, and deposition in crude oils B Pal, S Guin, TK Naiya Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil … , 2025 2025 Citations: 3
Current reviews of various AI techniques used for dye adsorption H Patel, R Patel, ARN Aina, B Pal IET Conference Proceedings CP920 2025 (7), 968-975 , 2025 2025
A review on the removal of anionic dyes from wastewater ARN Aina, H Patel, B Pal Parul University International Conference on Engineering and Technology 2025 … , 2025 2025
Sustainable energy generation through solid waste-to-energy conversion N Patel, S Thakor, H Patel, K Vadnagra, H Katariya, P Patel, B Pal IET Conference Proceedings CP920 2025 (7), 725-731 , 2025 2025
Improvement of the flow behaviour of paraffin oil with the help of natural derived polymer J Jadeja, A Mendpara, P Makwana, H Patel, PR Chauhan, B Pal IET Conference Proceedings CP920 2025 (7), 888-894 , 2025 2025
A review on the recent advancement of acid modified bio-adsorbents for the removal of methyl orange dye from wastewater treatment RNA Andriambahiny, J Das, B Roy, B Lodh, B Pal Discover Chemistry 2 (1), 92 , 2025 2025 Citations: 13
Application of Bio Additive for Flow Assurance of Indian Waxy Crude Oil S Guin, B Pal, TK Naiya Journal of Chemistry & its Applications. SRC/JCIA-142. DOI: doi. org/10 … , 2024 2024 Citations: 1
Effect of Amla fruit (Phyllanthus emblica) extract in flow assurance of Indian waxy crude oil B Pal, TK Naiya, G Sarkhel SPE Journal 28 (02), 628-642 , 2023 2023 Citations: 9
Application of Epoxidized Vegetable Oil for Improving Rheological Properties of Crude Oil B Pal, S Guin, TK Naiya Sustainable Chemical, Mineral and Material Processing: Select proceedings of … , 2022 2022
Application of novel fruit extract for flow assurance of Indian field waxy crude oil B Pal, T Naiya SPE Journal 27 (05), 3178-3195 , 2022 2022 Citations: 9
Application of synthesized novel biodegradable pour-point depressant from natural source on flow assurance of indian waxy crude oil and comparative studies with commercial pour … B Pal, TK Naiya SPE Journal 27 (01), 864-876 , 2022 2022 Citations: 16
Demulsification of crude oil-water emulsion using naturally formulated demulsifier B Pal, R Kumar, TK Naiya Petroleum Science and Technology 39 (21-22), 1027-1042 , 2021 2021 Citations: 16
Use of novel pour point depressant synthesized from vegetable oil for waxy crude oil A Azeem, R Kumar, B Pal, TK Naiya Petroleum Science and Technology 38 (3), 185-193 , 2020 2020 Citations: 44
MOST CITED SCHOLAR PUBLICATIONS
Use of novel pour point depressant synthesized from vegetable oil for waxy crude oil A Azeem, R Kumar, B Pal, TK Naiya Petroleum Science and Technology 38 (3), 185-193 , 2020 2020 Citations: 44
Recent advances in ZnO based photocatalysts for industrial dye degradation ARN Aina, H Patel, S Aich, B Roy, NS Samanta, B Pal Discover Applied Sciences 7 (9), 977 , 2025 2025 Citations: 24
Application of synthesized novel biodegradable pour-point depressant from natural source on flow assurance of indian waxy crude oil and comparative studies with commercial pour … B Pal, TK Naiya SPE Journal 27 (01), 864-876 , 2022 2022 Citations: 16
Demulsification of crude oil-water emulsion using naturally formulated demulsifier B Pal, R Kumar, TK Naiya Petroleum Science and Technology 39 (21-22), 1027-1042 , 2021 2021 Citations: 16
A review on the recent advancement of acid modified bio-adsorbents for the removal of methyl orange dye from wastewater treatment RNA Andriambahiny, J Das, B Roy, B Lodh, B Pal Discover Chemistry 2 (1), 92 , 2025 2025 Citations: 13
Effect of Amla fruit (Phyllanthus emblica) extract in flow assurance of Indian waxy crude oil B Pal, TK Naiya, G Sarkhel SPE Journal 28 (02), 628-642 , 2023 2023 Citations: 9
Application of novel fruit extract for flow assurance of Indian field waxy crude oil B Pal, T Naiya SPE Journal 27 (05), 3178-3195 , 2022 2022 Citations: 9
Water scarcity and climate change in intelligent infrastructure and smart materials: sustainable technologies for a greener future B Pal Intelligent Infrastructure and Smart Materials: Sustainable Technologies for … , 2025 2025 Citations: 3
Challenges During Production, Storage, and Transportation of Waxy and Heavy Crude Oils Due to Organic Deposition B Pal, TK Naiya Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil … , 2025 2025 Citations: 3
The chemistry of wax formation, agglomeration, and deposition in crude oils B Pal, S Guin, TK Naiya Environmental Friendly Green Technologies for Improvement of Heavy Crude Oil … , 2025 2025 Citations: 3
Novel Zinc Orthotitanate photocatalyst: Synthesis, characterization and photocatalytic degradation of Methylene Blue dye A Raval, H Patel, OK Mahadwad, B Pal Journal of the Indian Chemical Society, 102155 , 2025 2025 Citations: 1
Application of Bio Additive for Flow Assurance of Indian Waxy Crude Oil S Guin, B Pal, TK Naiya Journal of Chemistry & its Applications. SRC/JCIA-142. DOI: doi. org/10 … , 2024 2024 Citations: 1
Evaluation of Modified EVA-MA Copolymer as a Flow Improver in Waxy Crude Oil B Pal, TK Naiya Research Journal of Chemistry and Environment 30 (4), 79-83 , 2026 2026
A mini-review on photo-catalysis for sustainable dye degradation and water treatment H Patel, B Pal, VK Sandhwar AIP Conference Proceedings 3288 (1), 060005 , 2025 2025
Used oil disposal B Pal Lubricant Technology, 231-253 , 2025 2025
Current reviews of various AI techniques used for dye adsorption H Patel, R Patel, ARN Aina, B Pal IET Conference Proceedings CP920 2025 (7), 968-975 , 2025 2025
A review on the removal of anionic dyes from wastewater ARN Aina, H Patel, B Pal Parul University International Conference on Engineering and Technology 2025 … , 2025 2025
Sustainable energy generation through solid waste-to-energy conversion N Patel, S Thakor, H Patel, K Vadnagra, H Katariya, P Patel, B Pal IET Conference Proceedings CP920 2025 (7), 725-731 , 2025 2025
Improvement of the flow behaviour of paraffin oil with the help of natural derived polymer J Jadeja, A Mendpara, P Makwana, H Patel, PR Chauhan, B Pal IET Conference Proceedings CP920 2025 (7), 888-894 , 2025 2025
Application of Epoxidized Vegetable Oil for Improving Rheological Properties of Crude Oil B Pal, S Guin, TK Naiya Sustainable Chemical, Mineral and Material Processing: Select proceedings of … , 2022 2022