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Relative Potential of Different Plasma Forming Gases in Degradation of Rhodamine B Dye by Microplasma Treatment and Evaluation of Reuse Prospectus for Treated Water as Liquid Fertilizer
Plasma Chemistry and Plasma Processing ( IF 3.6 ) Pub Date : 2020-05-12 , DOI: 10.1007/s11090-020-10085-z
S. Meiyazhagan , S. Yugeswaran , P. V. Ananthapadmanabhan , P. R. Sreedevi , K. Suresh

Degradation of Rhodamine B in aqueous solution was carried out with different microplasma medium generated from air, oxygen, nitrogen and argon gases at atmospheric pressure. Rhodamine B (RhB) aqueous solution was prepared (10 ppm) and treated in microplasma reactor at different treatment time and applied potential. The RhB degradation was mainly due to the hydroxyl radical formation, during the plasma treatment, which was identified by terephthalic acid probe method. The result shows that the oxygen microplasma produced more hydroxyl radicals than air, nitrogen and argon. The degradation percentage of RhB solution with respect to different plasma gases were estimated by using UV–Vis absorption spectra which reveals that the oxygen microplasma is most competent for complete degradation within petite time followed by air, nitrogen and argon. Post discharge phenomenon was observed in air and nitrogen microplasma treated solution, which could reduce the treatment time to accomplish complete dye degradation. The sample treated with air and nitrogen microplasma for 3 min resulted in the degradation percentage of 62.3% and 60.4%, respectively, and the complete degradation was obtained after 7 and 10 h of post discharge, respectively. Further an attempt was made to verify the reusability of air microplasma treated solution as a liquid fertilizer in cultivation purpose using Mung bean (Vignaradiata). The obtained results were encouraging as the treated water enhanced the seed germination and plant growth notably.

中文翻译:

微等离子体处理降解罗丹明B染料中不同等离子体形成气体的相对潜力及处理水作为液体肥料再利用的评估

罗丹明 B 在水溶液中的降解是在大气压力下用空气、氧气、氮气和氩气产生的不同微等离子体介质进行的。制备罗丹明 B (RhB) 水溶液 (10 ppm) 并在微等离子体反应器中以不同的处理时间和施加的电位进行处理。RhB降解主要是由于等离子体处理过程中羟基自由基的形成,通过对苯二甲酸探针法鉴定。结果表明,氧微等离子体比空气、氮气和氩气产生更多的羟基自由基。RhB 溶液相对于不同等离子体气体的降解百分比通过使用 UV-Vis 吸收光谱估计,表明氧微等离子体最有能力在极短的时间内完全降解,其次是空气、氮气和氩气。在空气和氮气微等离子体处理后的溶液中观察到后放电现象,这可以减少处理时间以完成染料完全降解。样品用空气和氮气微等离子体处理 3 min 的降解率分别为 62.3% 和 60.4%,分别在放电后 7 小时和 10 小时后获得完全降解。此外,还尝试使用绿豆 (Vignaradiata) 验证空气微等离子体处理溶液作为液体肥料在栽培目的中的可重复使用性。获得的结果令人鼓舞,因为处理过的水显着促进了种子发芽和植物生长。样品用空气和氮气微等离子体处理 3 min 的降解率分别为 62.3% 和 60.4%,分别在放电后 7 小时和 10 小时后获得完全降解。进一步尝试使用绿豆 (Vignaradiata) 验证空气微等离子体处理溶液作为液体肥料在栽培目的中的可重复使用性。获得的结果令人鼓舞,因为处理过的水显着促进了种子发芽和植物生长。样品用空气和氮气微等离子体处理 3 min 的降解率分别为 62.3% 和 60.4%,分别在放电后 7 小时和 10 小时后获得完全降解。进一步尝试使用绿豆 (Vignaradiata) 验证空气微等离子体处理溶液作为液体肥料在栽培目的中的可重复使用性。获得的结果令人鼓舞,因为处理过的水显着促进了种子发芽和植物生长。进一步尝试使用绿豆 (Vignaradiata) 验证空气微等离子体处理溶液作为液体肥料在栽培目的中的可重复使用性。获得的结果令人鼓舞,因为处理过的水显着促进了种子发芽和植物生长。进一步尝试使用绿豆 (Vignaradiata) 验证空气微等离子体处理溶液作为液体肥料在栽培目的中的可重复使用性。获得的结果令人鼓舞,因为处理过的水显着促进了种子发芽和植物生长。
更新日期:2020-05-12
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