Application of Wasted Oolong Tea as a Biosorbent for the Adsorption of Methylene Blue
المؤلفون المشاركون
Lin, Jinke
Ko, Tzu-Hsing
Hu, Yunfei
Zhang, Yue
Hu, Yuqun
Chu, Chen-Yao
Gao, Shuilian
Lin, Dongyi
Lu, Jing
Xiang, Ping
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-01-16
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Tea powder, a biosorbent prepared from wasted oolong tea, was collected as a prospective adsorbent for the adsorption of methylene blue (MB) from aqueous solution.
The effect of factors on adsorption efficiency, isotherms, kinetics, and potential mechanism was carried out.
Adsorption capacity of MB onto wasted tea powder increased with the MB concentration and contact time, whereas the increase in pH value and ion strength appeared to have a negative effect for the adsorption process.
The adsorption efficiency increased rapidly and reached a stable state within 120 min.
The optimal tea powder loading weight is suggested to be at 0.1 to 0.2 g, and the highest efficiency of 94.8% is achieved at 333 K.
There were no significant changes in adsorption efficiency when the effect of temperature is considered.
The Langmuir isotherm model was found to be the best isotherm models to elucidate the adsorption mechanism in this study.
The maximum adsorption capacities calculated at different temperatures by the Langmuir model ranging from 312.5 to 333.3 mg·g−1 were much close to the experimental results.
From the kinetic analysis, the pseudo--second-order model was found to be the best model to describe the adsorption behavior.
The calculated adsorption capacities at different initial MB concentrations by the pseudo-second-order model ranging from 92.34 to 400 mg·g−1 were well close to the experimental data.
The fitting results obtained from the intraparticle diffusion model suggested that the intraparticle diffusion was not the only rate-controlling step and some other mechanisms along with the intraparticle diffusion were probably involved.
The intraparticle diffusion of MB molecules into pore structures of wasted tea powder is the rate-limiting step for the adsorption process in this study.
The repetitive cycle experiments indicated that the wasted oolong tea powder was efficiently regenerated using NaOH and thus be used for many times.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Hu, Yunfei& Zhang, Yue& Hu, Yuqun& Chu, Chen-Yao& Lin, Jinke& Gao, Shuilian…[et al.]. 2019. Application of Wasted Oolong Tea as a Biosorbent for the Adsorption of Methylene Blue. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1171151
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Hu, Yunfei…[et al.]. Application of Wasted Oolong Tea as a Biosorbent for the Adsorption of Methylene Blue. Journal of Chemistry No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1171151
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Hu, Yunfei& Zhang, Yue& Hu, Yuqun& Chu, Chen-Yao& Lin, Jinke& Gao, Shuilian…[et al.]. Application of Wasted Oolong Tea as a Biosorbent for the Adsorption of Methylene Blue. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1171151
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1171151
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر