Cao Shurui, Wei Xin, Tang Yao, Tian Jie, Wu Duanhao, Chen Zhiqiong
Forensic Identification Center, Southwest University of Political Science and Law, Chongqing, 401120, China; Criminal Investigation Law School, Southwest University of Political Science and Law, Chongqing, 401120, China.
College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China.
Environ Res. 2024 Dec 1;262(Pt 2):119892. doi: 10.1016/j.envres.2024.119892. Epub 2024 Aug 31.
The abuse of amphetamine-type stimulants (ATSs) has caused irreversible harm to public safety and ecosystems. A novel polymerized deep eutectic solvent modified magnetic pomelo peel biochar (PMBC) was prepared, and the differences in adsorption of four abused amphetamine-type stimulants (ATSs: AMP, MAMP, MDA and MDMA) were due to varying hydrogen bonds quantities and strengths. PMBC showed excellent chemical reactivity to MDMA, with a maximum adsorption capacity of 926.13 μg g, which was 3.25, 2.52 and 1.15 times higher than that of AMP, MAMP and MDA, respectively. Modern spectral analysis showed that there were a series of active centers (-COOH, -NH and -OH) on the PMBC, which could form hydrogen bond networks with the nitrogen and oxygen functional groups of ATSs. In various chemical environments: pH level (4-11), inorganic ion and organic matter (humic acid), PMBC maintained high activity towards four ATSs. Additionally, the quantum chemical calculations revealed that the methylenedioxy bridge of ATSs can increase the active sites, and the -NH- and -NH groups had different hydrogen bond formation capabilities, which together resulted in the adsorption order of PMBC on the four ATSs: MDMA > MDA > MAMP > AMP. Moreover, the hydrogen-bonding binding energies of several common hydrogen-bonding types were compared, including O-H····O, N-H····O/O-H····N and N-H···N. This study laid an empirical and theoretical foundation for the efficient capture of ATSs in water and contributed to the innovative design of materials.
苯丙胺类兴奋剂（ATSs）的滥用已对公共安全和生态系统造成了不可逆转的危害。制备了一种新型的聚合型低共熔溶剂改性磁性柚皮生物炭（PMBC），四种滥用的苯丙胺类兴奋剂（ATSs：安非他明、甲基苯丙胺、3,4-亚甲基二氧甲基苯丙胺和摇头丸）吸附差异的原因在于氢键数量和强度的不同。PMBC对摇头丸表现出优异的化学反应性，最大吸附容量为926.13 μg g，分别是安非他明、甲基苯丙胺和3,4-亚甲基二氧甲基苯丙胺的3.25倍、2.52倍和1.15倍。现代光谱分析表明，PMBC上存在一系列活性中心（-COOH、-NH和-OH），它们可与ATSs的氮和氧官能团形成氢键网络。在各种化学环境中：pH值（4 - 11）、无机离子和有机物（腐殖酸），PMBC对四种ATSs均保持高活性。此外，量子化学计算表明，ATSs中的亚甲基二氧基桥可增加活性位点，且-NH-和-NH基团具有不同的氢键形成能力，这共同导致了PMBC对四种ATSs的吸附顺序为：摇头丸 > 3,4-亚甲基二氧甲基苯丙胺 > 甲基苯丙胺 > 安非他明。此外，还比较了几种常见氢键类型的氢键结合能，包括O-H····O、N-H····O/O-H····N和N-H···N。本研究为水中ATSs的高效捕获奠定了经验和理论基础，并有助于材料的创新设计。
