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Material selection of sustainable composites by the valorisation of plastics and agro wastes: An integrated q-rung orthopair fuzzy-based multiple criteria decision making model
(Elsevier BV, 2026-06)
Ashish Soni
;
Sonu Kumar Gupta
;
Dai-Viet N. Vo
;
Natarajan Rajamohan
;
Mohammad Yusuf
The concern for plastic wastes and high usages for building construction materials has promoted the nation towards eco-friendly composite materials for structural components. Anappropriate choice of material improves the functionality and life cycle of a product . The research seeks to promote sustainable practices in building construction for the attainment of the circular economy. This investigation anticipated a fuzzy number-based integrated Stepwise Weight Assessment Ratio Analysis (SWARA)-Complex Proportional Assessment (COPRAS) mathematical model for material selection of eco-friendly composites. In the present work, eight (08) different composites are developed by recycling of waste plastics namely low-density polyethylene, high-density polyethylene, polypropylene, and polyethylene terephthalate with the reinforcement of natural fibres of coconut and jute. The alternatives are ranked by considering seven (07) criteria for structural application such as floor tiles, pavements, panels, etc. The compressive is identified as the most significant while hardness is least preferable criteria for composite having structural applications. The proposed model has identified the alternatives A6 and A1 as the most and least preferable alternatives, respectively. The research has recommended the incorporation of 20 wt.% of jute fibre with 80 wt.% of polypropylene in composites for structural applications. The comparative analysis of rankings against the other well-known techniques has verified the trustworthiness of the model. The high ranges of 0.76–-0.928 for Spearman’s rank correlations coefficient has verified the robustness of the ranking results. The sensitivity analyses have shown the influence of criteria weight on rankings. The suggested mathematical approach can efficiently rank the composites and address the challenges associated in the material selection of polymeric composites in unpredictable environments.
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Waste-to-energy technologies: a sustainable pathway for resource recovery and materials management
(Royal Society of Chemistry (RSC), 2025-07-03)
Ashish Soni
;
Sonu Kumar Gupta
;
Natarajan Rajamohan
;
Mohammad Yusuf
The huge generation of municipal solid waste along with the reliance on natural resources to meet the ever-increasing demand of energy has stimulated the world towards the exploration of novel methods for the recovery of energy and resources by using the generated waste. Despite the numerous advantages of waste-to-energy (WtE) technologies, these techniques are not widely implemented. The review has summarized the various aspects of WtE techniques including advantages and limitations, techno-economic analysis, challenges and prospects, framework and implementation. The review has identified that the WtE techniques are more efficient than conventional waste management practices. The characteristics of municipal solid waste (MSW) vary with geographical conditions, living standards, socio-economic conditions, etc. Therefore, no particular WtE technique is equally feasible for the treatment of MSW. The strict environmental strategies, policies, and guidelines can assist in selecting the best WtE practice. The thermal treatment methods can effectively reduce the volume of generated waste by up to 90%. Techno-economic analysis has revealed that WtE techniques are economically feasible with suitable measures. The life-cycle assessments have found that WtE techniques can recover up to 27.40% of energy. The food and agriculture waste constitutes 50-56% of the generated waste stream in developing countries thereby highlighting the significance of anaerobic digestion. The implementation of WtE techniques can considerably reduce the emission of greenhouse gases and is beneficial to environmental health. The potential of WtE techniques for effective waste management and promotion of sustainability is underscored. The review contributes to the implementation of more effective measures for MSW management and promotes a circular economy.
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An overview of recent trends and future prospects of sustainable natural fiber-reinforced polymeric composites for tribological applications
(Elsevier BV, 2024-12)
Ashish Soni
;
Pankaj Kumar Das
;
Sonu Kumar Gupta
;
Ankuran Saha
;
Saravanan Rajendran
The concern for plastics pollution, awareness of sustainability, and necessities of high-performance materials for modern industries have stimulated the world towards the advancement of natural fiber-reinforced polymeric composites. The review aimed to explore the tribological behaviour of natural fiber-reinforced polymeric composites and identify the characteristics of natural fiber-based polymeric composites. The different manufacturing techniques, tribological characteristics and applications of natural fiber-reinforced polymeric composites are outlined. Moreover, the review critically summarized the impact of fiber characteristics and treatments on the performance of natural fiber-reinforced polymeric composites. The advances and approaches to enhance the performances of the natural fiber-reinforced polymeric composites are summarized. The work presented the recent progress allied with several aspects of natural fiber-reinforced polymeric composites. The discussions for the life cycle assessments and degradation of the natural fiber-reinforced polymeric composites are provided. The treatment of the fibers with suitable reagents removes the wax, lignin, cellulose, impurities, etc., thereby enhances the compatibility between the reinforcement and matrix. Moreover, the reinforcement of fibers in polymers improves the strength and wear resistance of the composites. The life cycle assessments have reported that natural fiber-based polymeric composites have a lower environmental impact in comparison to conventional composites. The review has explored the prospects of sustainable natural fiber-based polymeric composites for tribological applications includes; floor tiles, instrumental panels of automobiles, house elements, car bumpers, doors and window panels, etc. This review has provided several vital information on advanced natural fiber-based composites for their prospective tribological conditions. The review is beneficial for the promotion of sustainability in modern industries and is advantageous for techno-eco and environmental points of view. The review will assist the researcher in working for the advancement of composites and practitioners involved in the domain of sustainability and environmental issues.
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Synergy of silica sand and waste plastics as thermoplastic composites on abrasive wear characteristics under conditions of different loads and sliding speeds
(Elsevier BV, 2023-05)
Ashish Soni
;
Pankaj Kumar Das
;
Mohammad Yusuf
;
Syahrir Ridha
;
Hesam Kamyab

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