[1]刘成顺,段淑敏,王树茂,等.‘东方美人’茶茶渣对甲基紫的吸附性能[J].亚热带农业研究,2020,16(02):126-131.[doi:10.13321/j.cnki.subtrop.agric.res.2020.02.010]
 LIU Chengshun,DUAN Shumin,WANG Shumao,et al.Adsorption of methyl violet onto ‘Oriental Beauty’ tea residue[J].,2020,16(02):126-131.[doi:10.13321/j.cnki.subtrop.agric.res.2020.02.010]
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‘东方美人’茶茶渣对甲基紫的吸附性能()
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《亚热带农业研究》[ISSN:1006-6977/CN:61-1281/TN]

卷:
16
期数:
2020年02期
页码:
126-131
栏目:
出版日期:
2020-07-22

文章信息/Info

Title:
Adsorption of methyl violet onto ‘Oriental Beauty’ tea residue
作者:
刘成顺1 段淑敏1 王树茂2 谢振邦1 韩华1 柯子星1
1. 福建农林大学安溪茶学院, 福建 安溪 362406;
2. 浙江大学茶叶研究所, 浙江 杭州 310000
Author(s):
LIU Chengshun1 DUAN Shumin1 WANG Shumao2 XIE Zhenbang1 HAN Hua1 KE Zixing1
1. Anxi College of Tea Science, Fujian Agriculture and Forestry University, Anxi, Fujian 362406, China;
2. Institute of Tea Science, Zhejiang University, Hangzhou, Zhejiang, 310000
关键词:
‘东方美人’茶甲基紫吸附动力学吸附热力学
Keywords:
‘Oriental Beauty’ teamethyl violetadsorption kineticsadsorption thermodynamics
分类号:
X703X791
DOI:
10.13321/j.cnki.subtrop.agric.res.2020.02.010
摘要:
[目的] 以‘东方美人’茶茶渣作为生物吸附剂,研究其对甲基紫的吸附性能。[方法] 考察了吸附时间、茶渣粉末添加量、温度、金属离子浓度等因素对‘东方美人’茶茶渣吸附甲基紫性能的影响,并进行动力学方程和热力学方程的拟合以探讨吸附过程。[结果] 茶渣对甲基紫的去除效果良好,吸附反应在120 min可达到平衡;茶渣粉末添加量越多,吸附率越高,吸附量越低;温度升高,有利于吸附;金属离子的加入不利于‘东方美人’茶茶渣对甲基紫的吸附。[结论] ‘东方美人’茶茶渣对甲基紫的吸附符合准二级动力学方程以及Langmuir、Freundlich吸附等温方程。通过吸附热力学研究,可判断‘东方美人’茶茶渣吸附甲基紫为吸热反应,表明‘东方美人’茶茶渣是一种很好的甲基紫吸附剂。
Abstract:
[Purpose] To study the adsorption capability of ‘Oriental Beauty’ tea residue to methyl violet as a bio-adsorbent agent.[Method] The effects of adsorption time, dosage of tea residue, temperature, metal ion concentration, and other factors on adsorption of methyl violet onto ‘Oriental Beauty’ tea residue were investigated. The adsorption behavior was explored by simulating kinetic and thermodynamic equations.[Result] The ‘Oriental Beauty’ tea residue possessed a good potential to remove methyl violet from wastewater. The equilibrium time was at 120 min in this study. The more the loading dosage of tea residue powder, the higher the adsorption rate and the lower the adsorption amount. Temperature had a positive effect, but adding metal ions had a negative effect on methyl violet adsorption.[Conclusion] Langmuir and Freundlich isotherm models canbe used to fit the adsorption mechanism. Pseudo second-order kinetic model was the optional model to elucidate adsorption process between tea residue and methyl violet. Through adsorption thermodynamics study, it can be determined that the adsorption of methyl purple onto ‘Oriental Beauty’ tea residue is a heat-absorbing reaction, indicating that ‘Oriental Beauty’ tea residue is a potential adsorbent for methyl violet removal.

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备注/Memo

备注/Memo:
收稿日期:2020-04-18。
基金项目:福建省安溪县现代农业产业园协同创新中心资助项目(KMD183003A)。
作者简介:刘成顺(1999-),男。研究方向:茶叶深加工与资源再利用。Email:2436206260@qq.com。
通讯作者:柯子星(1975-),男,教授。研究方向:茶叶深加工与资源再利用。Email:hsingko@gmail.com。
更新日期/Last Update: 1900-01-01