Facile Green Production of Chitin Nanomaterials from Shrimp Shell Chitin Using Recyclable Maleic Acid and Microwave Irradiation

IF 7.3 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Sustainable Chemistry & Engineering Pub Date : 2024-11-13 DOI:10.1021/acssuschemeng.4c0623410.1021/acssuschemeng.4c06234

Soibam Ngasotter, K. A. Martin Xavier*, Layana Porayil, Amjad Khansaheb Balange, Binaya Bhusan Nayak and George Ninan,

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Abstract

This study presents a facile, green, and sustainable method for the integrated production of chitin nanocrystals (ChNCs) and nanofibers (ChNFs) from shrimp shell chitin using recyclable maleic acid and microwave irradiation. Maleic acid, a mild organic acid, is employed for hydrolysis and functionalization, with 88.5% recovery for reuse, contributing to the sustainability of the process. Optimal production conditions, determined using response surface methodology (RSM), were an 85% acid concentration, 26.63 min of reaction time, and 315.41 W microwave power, yielding 26.28% ChNCs and 64.04% ChNFs. Transmission electron microscopy (TEM) revealed rod-like ChNCs (543.71 nm length, 48.70 nm width) and web-like ChNFs (61.15 nm width). Fourier-transform infrared spectroscopy (FTIR) confirmed successful surface carboxylation, with degrees of substitution of 0.32 for ChNCs and 0.28 for ChNFs. Both nanomaterials exhibited high crystallinity (91.55% for ChNCs, 87.65% for ChNFs), negative zeta potential values (−44.56 mV for ChNCs, −16.93 mV for ChNFs), and enhanced thermal stability compared to raw chitin. The process, evaluated using sustainability metrics, yielded an E-factor of 3.317, highlighting significant waste reduction over conventional acid hydrolysis. This eco-friendly approach aligns with green chemistry principles and offers a sustainable, scalable solution for chitin nanomaterial production, suitable for diverse industrial applications.

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利用可回收马来酸和微波辐照从虾壳甲壳素中简便绿色地制备甲壳素纳米材料

本研究提出了一种利用可回收马来酸和微波辐照从虾壳甲壳素综合生产甲壳素纳米晶体（ChNCs）和纳米纤维（ChNFs）的简便、绿色和可持续的方法。马来酸是一种温和的有机酸，可用于水解和功能化，回收率达 88.5%，有助于该工艺的可持续发展。最佳生产条件是 85% 的酸浓度、26.63 分钟的反应时间和 315.41 W 的微波功率，采用响应面方法（RSM）确定的最佳生产条件可产生 26.28% 的 ChNCs 和 64.04% 的 ChNFs。透射电子显微镜（TEM）显示了棒状 ChNCs（长 543.71 nm，宽 48.70 nm）和网状 ChNFs（宽 61.15 nm）。傅立叶变换红外光谱（FTIR）证实了表面羧基化的成功，ChNCs 和 ChNFs 的取代度分别为 0.32 和 0.28。两种纳米材料都表现出较高的结晶度（ChNCs 为 91.55%，ChNFs 为 87.65%）、负 zeta 电位值（ChNCs 为 -44.56 mV，ChNFs 为 -16.93 mV），而且热稳定性也比原甲壳素更强。使用可持续发展指标对该工艺进行评估后，得出的 E 系数为 3.317，与传统的酸水解法相比，废物显著减少。这种生态友好型方法符合绿色化学原则，为甲壳素纳米材料的生产提供了一种可持续、可扩展的解决方案，适用于多种工业应用。

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来源期刊

ACS Sustainable Chemistry & Engineering CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL

CiteScore

13.80

自引率

4.80%

发文量

1470

审稿时长

1.7 months

期刊介绍： ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment. The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.