加入 KOH 对等离子体活化咖啡粉溶液中硝酸盐形成的影响

IF 1.3 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

IEEE Transactions on Plasma Science Pub Date : 2024-09-20 DOI:10.1109/TPS.2024.3431016

Shao-Hsuan Chin;Yuan-Tai Lai;Sheng-Yu Hsu;Po-Yu Chen;Jenq-Gong Duh

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引用次数: 0

摘要

最近，等离子体技术已被应用于多个领域。在农业应用中，等离子体活化有机肥料（PAOF）是一种前景广阔的替代品。在这项研究中，使用以氩气/空气为处理气体的常压等离子体射流（APPJ）对废咖啡渣（SCGs）进行活化，这就是等离子体活化咖啡渣溶液（PACs）。此外，还加入了碱，使 pH 值从酸性变为中性，从而提高了 PACs 中的硝酸盐浓度。硝酸盐含量明显增加，达到未经等离子体处理溶液的 66 倍。高效液相色谱/质谱（HPLC/MS）分析显示，碱分解了氨基酸，并使其参与了 PACs 中的反应物反应。足够的硝酸盐浓度和适当的 pH 值显示了添加碱的 PACs 的优势，显示出其作为新型肥料在农业领域的巨大潜力。

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The Effect of KOH Addition on Nitrate Formation in Plasma-Activated Coffee Ground Solution

Plasma technology has recently been applied in various fields. In agricultural applications, plasma-activated organic fertilizer (PAOF) is a promising alternative. In this study, the spent coffee grounds (SCGs) was activated by using an atmospheric pressure plasma jet (APPJ) with argon/air as the treating gas, which was called plasma-activated coffee grounds solution (PACs). In addition, alkali was added to shift pH from acidic to neutral, enhancing nitrate concentration in PACs. Nitrate levels increased significantly, reaching 66 times that of nonplasma-treated solution. High-performance liquid chromatography mass spectrometry (HPLC/MS) analysis revealed amino acid decomposition by alkali and their participation in reactions with reactive species in PACs. The sufficient nitrate concentration and appropriate pH value exhibit advantages of PACs with the addition of alkali, showing great potential as a novel fertilizer in agriculture fields.

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来源期刊

IEEE Transactions on Plasma Science 物理-物理：流体与等离子体

CiteScore

3.00

自引率

20.00%

发文量

538

审稿时长

3.8 months

期刊介绍： The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.