{"title":"加入 KOH 对等离子体活化咖啡粉溶液中硝酸盐形成的影响","authors":"Shao-Hsuan Chin;Yuan-Tai Lai;Sheng-Yu Hsu;Po-Yu Chen;Jenq-Gong Duh","doi":"10.1109/TPS.2024.3431016","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"52 8","pages":"3145-3152"},"PeriodicalIF":1.3000,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Effect of KOH Addition on Nitrate Formation in Plasma-Activated Coffee Ground Solution\",\"authors\":\"Shao-Hsuan Chin;Yuan-Tai Lai;Sheng-Yu Hsu;Po-Yu Chen;Jenq-Gong Duh\",\"doi\":\"10.1109/TPS.2024.3431016\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"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.\",\"PeriodicalId\":450,\"journal\":{\"name\":\"IEEE Transactions on Plasma Science\",\"volume\":\"52 8\",\"pages\":\"3145-3152\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-09-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Plasma Science\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10684882/\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, FLUIDS & PLASMAS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Plasma Science","FirstCategoryId":"101","ListUrlMain":"https://ieeexplore.ieee.org/document/10684882/","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
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.
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.
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