Academic Journal
Preparation of Ti-modified biochar and its adsorption for Pb(Ⅱ) and Co(Ⅱ)
| العنوان: | Preparation of Ti-modified biochar and its adsorption for Pb(Ⅱ) and Co(Ⅱ) |
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| المؤلفون: | DUAN Qianqian, CHEN Jingyi, LIU Junsheng, ZHANG Junfei, LIN Shitao, LIU Yu |
| المصدر: | Gongye shui chuli, Vol 44, Iss 10, Pp 193-200 (2024) |
| بيانات النشر: | Editorial Office of Industrial Water Treatment, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering |
| مصطلحات موضوعية: | black peanut shells, modification by tetrabutyl titanate, biochar, mixed ion solution, Environmental technology. Sanitary engineering, TD1-1066 |
| الوصف: | Tetra-n-butyl titanate was used to modify black peanut shells(PSs) to prepare Ti-based modified PSs biochar(Ti@PB). Its adsorption characteristics for Pb(Ⅱ) and Co(Ⅱ) in mixed solution were investigated. The characterization results of Ti@PB showed that Ti mass fraction reached 33.822%, indicating that Ti was successfully loaded on the surface of the biochar. In addition, the surface of Ti@PB was rough, with many irregular pore structures, which was an adsorbent material with mixture of micropores and mesopores, and the surface functional groups were mainly dominated by oxygen-containing functional groups. The removal of Pb(Ⅱ) and Co(Ⅱ) by Ti@PB was enhanced compared to the biochar prepared from unmodified PSs. The kinetic study demonstrated that the removal of Pb(Ⅱ) by Ti@PB followed the quasi-second-order kinetic equation and was dominated by chemisorption, while the removal of Co(Ⅱ) was more consistent with the quasi-first-order kinetic equation and was predominantly physisorbed. The isothermal adsorption fitting results showed that the adsorption of both Pb(Ⅱ) and Co(Ⅱ) by Ti@PB conformed to the Freundlich model as multilayer non-homogeneous phase adsorption. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | Chinese |
| تدمد: | 1005-829X 2023-0974 |
| Relation: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0974; https://doaj.org/toc/1005-829X |
| DOI: | 10.19965/j.cnki.iwt.2023-0974 |
| URL الوصول: | https://doaj.org/article/699c6c3ac34d4cb1a5e932ab28db89bf |
| رقم الانضمام: | edsdoj.699c6c3ac34d4cb1a5e932ab28db89bf |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 1005829X 20230974 |
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| DOI: | 10.19965/j.cnki.iwt.2023-0974 |