Acetaminophen removal using porous activated carbon derived from corn cob: optimization and mass transfer modelling

IF 2.8 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal of chemical technology and biotechnology Pub Date : 2024-07-15 DOI:10.1002/jctb.7712
Mohamad Razif Mohd Ramli, Noor Fazliani Shoparwe, Mohd Azmier Ahmad, Mohamad Firdaus Mohamad Yusop
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Abstract

BACKGROUND

Acetaminophen, also known as paracetamol, has been notably detected in aquatic environments, including wastewater, surface water and drinking water, causing significant concern within the scientific and environmental research communities. This study focuses on two main objectives: (i) optimizing corn cob-based activated carbon (CCAC) through response surface methodology for the adsorption of acetaminophen and (ii) simulating the acetaminophen adsorption process using the polymath mass transfer (PMT) model.

RESULTS

The optimized CCAC was prepared via physiochemical activation under microwave radiation (265 W power) for 6 min, with a KOH impregnation ratio of 0.50 g g−1. This process resulted in a high Brunauer–Emmett–Teller surface area of 976.29 m2 g−1, accompanied by a corresponding pore volume of 0.39 cm3 g−1 and a pore diameter of 2.38 nm. The adsorption study, employing differential initial concentrations (ranging from 5 to 30 mg L−1) of acetaminophen, revealed a substantial adsorption capacity of 22.43 mg g−1 (74.77%) at 30 °C and 20.74 mg g−1 (69.13%) at pH 6. The PMT model indicated an adsorption capacity (Qm) of 21.14 mg g−1, with an error of 5.75%, demonstrating high precision compared to the experimental result. Additionally, the calculated R2 values equal to or above 0.90 indicated strong agreement between the PMT model and experimental data.

CONCLUSION

Thus, applying the PMT model proved to be economical and cost-effective, providing accurate predictions on surface area during adsorption performance compared to the time-consuming and costly process of conducting characterizations. © 2024 Society of Chemical Industry (SCI).

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利用玉米芯提取的多孔活性炭去除对乙酰氨基酚:优化和传质建模
对乙酰氨基酚(又称扑热息痛)在水生环境(包括废水、地表水和饮用水)中的检出率很高,引起了科学界和环境研究界的极大关注。本研究有两个主要目标:(i) 通过响应面方法优化玉米芯基活性炭(CCAC)对对乙酰氨基酚的吸附;(ii) 利用多数学传质(PMT)模型模拟对乙酰氨基酚的吸附过程。这一过程产生了较高的布鲁瑙尔-艾美特-泰勒表面积(976.29 m2 g-1),相应的孔体积为 0.39 cm3 g-1,孔直径为 2.38 nm。利用不同初始浓度(5 至 30 mg L-1)的对乙酰氨基酚进行的吸附研究表明,在 30 °C 和 pH 值为 6 的条件下,对乙酰氨基酚的吸附容量分别为 22.43 mg g-1(74.77%)和 20.74 mg g-1(69.13%)。PMT 模型显示的吸附容量(Qm)为 21.14 mg g-1,误差为 5.75%,与实验结果相比精度较高。此外,计算得出的 R2 值等于或高于 0.90,表明 PMT 模型与实验数据之间具有很强的一致性。因此,与耗时耗力且成本高昂的表征过程相比,应用 PMT 模型证明了其经济性和成本效益,可在吸附性能过程中提供表面积的准确预测。© 2024 化学工业学会(SCI)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.00
自引率
5.90%
发文量
268
审稿时长
1.7 months
期刊介绍: Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.
期刊最新文献
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