Deshmukh Sharvari, Walaskar Samruddhi, Deokar Sunil, Jadhav Anuja Rajendra, Pathak Pranav Deepak
MIT School of Bioengineering Sciences & Research, MIT Art Design and Technology University, Pune, Maharashtra, India.
Anuradha Engineering College, Chikhli, Maharashtra, India.
Water Environ Res. 2025 Jun;97(6):e70092. doi: 10.1002/wer.70092.
Plastic is one of the threats to the environment and human health, though it has contributed to the development of society in the past 150 years. Due to its diverse properties, lightweight, strong, heat resistant, highly convenient, waterproof, corrosion-resistant, non-biodegradable, and economical, it is popular in many applications. However, its non-biodegradable nature makes it a hazardous substance, and thus, it should be eliminated. The researchers have tried to convert this waste into valuable products from carbon-based material. These carbon-based materials include carbon nanotubes, carbon spheres, carbon nanosheets, carbon nanorods, mesoporous carbons, porous carbon, carbon-spheres, graphene, and activated carbon with diverse applications. One of the applications is used in wastewater treatment. Based on the research gap, this article focuses on synthesizing carbon-based material from PET water bottles and its application in methylene blue (MB) dye adsorption. Two catalysts, citric acid and ferric nitrate, were used for carbon synthesis, which shows a maximum Langmuir adsorption capacity of 14.90 mg/g (C) and 13.22 mg/g (C), respectively. The adsorption kinetics follow PSO kinetics. The surface area observed was 8.06 and 2.12 m/g for C and C, respectively. The synthesized carbon has a good potential for removing MB from aqueous solutions, but further research is required to find other applications of the C and C. PRACTITIONER POINTS: The article reviews the diverse synthesis methods of listed carbon-based materials and their possible applications Carbon was prepared from waste PET waste bottles using citric acid and ferric nitrate as catalysts Equilibrium isotherms, adsorption kinetics, and process thermodynamics were studied for the removal of methylene blue dye onto synthesized carbon The maximum Langmuir adsorption capacity of 14.90 mg/g (C) and 13.22 mg/g (C) was achieved The surface area observed was 8.06 and 2.12 m/g for C and C, respectively.
塑料是对环境和人类健康的威胁之一，尽管在过去150年里它推动了社会的发展。由于其具有多种特性，如重量轻、强度高、耐热、高度便利、防水、耐腐蚀、不可生物降解且经济实惠，它在许多应用中都很受欢迎。然而，其不可生物降解的特性使其成为一种有害物质，因此，应该将其消除。研究人员试图将这种废物转化为基于碳材料的有价值产品。这些基于碳的材料包括碳纳米管、碳球、碳纳米片、碳纳米棒、介孔碳、多孔碳、碳球、石墨烯和具有多种应用的活性炭。其中一个应用是用于废水处理。基于研究空白，本文重点研究了从PET水瓶合成碳基材料及其在亚甲基蓝（MB）染料吸附中的应用。使用柠檬酸和硝酸铁两种催化剂进行碳合成，其最大朗缪尔吸附容量分别为14.90 mg/g（C）和13.22 mg/g（C）。吸附动力学遵循PSO动力学。观察到的C和C的表面积分别为8.06和2.12 m/g。合成的碳具有从水溶液中去除MB的良好潜力，但需要进一步研究以发现C和C的其他应用。从业者要点：本文综述了所列碳基材料的多种合成方法及其可能的应用 使用柠檬酸和硝酸铁作为催化剂从废弃PET水瓶制备碳 研究了合成碳对亚甲基蓝染料去除的平衡等温线、吸附动力学和过程热力学 实现了最大朗缪尔吸附容量14.90 mg/g（C）和13.22 mg/g（C） 观察到的C和C的表面积分别为8.06和2.12 m/g。
