废罗勒籽去除水溶液中钆离子的潜力。

IF 1.5 4区 医学 Q4 CHEMISTRY, MEDICINAL
Fumihiko Ogata, Noriaki Nagai, Yugo Uematsu, Nanami Matsumoto, Chalermpong Saenjum, Naohito Kawasaki
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引用次数: 0

摘要

本研究考察了在500°C或1000°C(分别为BS500或BS1000)煅烧的废罗勒种子(BSs)从水溶液中去除钆的潜力。钆离子在吸附剂上的吸附性能也根据初始浓度、吸附温度、暴露时间和ph值等参数进行了评价。较高的初始浓度、吸附温度和暴露时间(BS, BS500≒BS1000)导致吸附钆离子的数量增加;为了进一步了解吸附机理,对元素分布和结合能进行了详细的分析。根据提出的机理,钆在BS1000上的吸附可能涉及离子交换过程,即BS1000表面羧基、羟基等官能团中的氢离子被钆离子取代。此外,研究了共存离子对钆吸附的影响,发现一价阳离子不影响钆离子的吸附能力,而二价和三价阳离子显著降低了钆离子的吸附能力。最后,用蒸馏水、盐酸、氢氧化钠等解吸剂对钆离子进行解吸试验。结果表明,100 mmol/L的盐酸溶液对钆离子的解吸效果特别好。总的来说,BS1000表现出了从水溶液中去除钆离子的吸附剂的良好性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Potential of Waste Basil Seeds for Gadolinium Ion Removal from Aqueous Solutions.

This study examined the potential of waste basil seeds (BSs) calcined at 500°C or 1000°C (BS500 or BS1000, respectively) for gadolinium removal from aqueous solutions. Gadolinium ion adsorption onto the produced adsorbents was also assessed in relation to a number of parameters, including initial concentration, adsorption temperature, exposure time, and pH. Higher initial concentrations, adsorption temperatures, and exposure times (BS, BS500 ≒ BS1000) resulted in an increase in the quantity of adsorbed gadolinium ions; To further understand the adsorption mechanism, detailed analyses of elemental distribution and binding energy were conducted. According to the proposed mechanism, gadolinium adsorption onto BS1000 may involve an ion exchange process, wherein hydrogen ions from functional groups such carboxyl and hydroxyl groups on the surface of BS1000 are replaced by gadolinium ions. Additionally, the effects of coexisting ions on gadolinium adsorption were investigated, revealing that while monovalent cations did not impact gadolinium ion adsorption capacity, divalent and trivalent cations significantly reduced it. Finally, the desorption of gadolinium ions was tested using desorption agents such as distilled water, hydrochloric acid, and sodium hydroxide. The results revealed that a 100 mmol/L hydrochloric acid solution was particularly effective for desorbing gadolinium ions. Overall, BS1000 demonstrates promising properties as an adsorbent for gadolinium ion removal from aqueous solutions.

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来源期刊
CiteScore
3.20
自引率
5.90%
发文量
132
审稿时长
1.7 months
期刊介绍: The CPB covers various chemical topics in the pharmaceutical and health sciences fields dealing with biologically active compounds, natural products, and medicines, while BPB deals with a wide range of biological topics in the pharmaceutical and health sciences fields including scientific research from basic to clinical studies. For details of their respective scopes, please refer to the submission topic categories below. Topics: Organic chemistry In silico science Inorganic chemistry Pharmacognosy Health statistics Forensic science Biochemistry Pharmacology Pharmaceutical care and science Medicinal chemistry Analytical chemistry Physical pharmacy Natural product chemistry Toxicology Environmental science Molecular and cellular biology Biopharmacy and pharmacokinetics Pharmaceutical education Chemical biology Physical chemistry Pharmaceutical engineering Epidemiology Hygiene Regulatory science Immunology and microbiology Clinical pharmacy Miscellaneous.
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