Efficient adsorption of tetracycline by phytic acid modulated ramie fiber-derived porous carbon: Performance, mechanism, and application potential

Tetracyclines are widely adopted in various industries and ubiquitous in wastewater, and developing efficient removal technologies remains a challenge. In this study, a phytic acid pre-modulated porous carbon originating from ramie fiber (PARPC) was prepared to remove tetracycline from water. Batch...

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Bibliographic Details
Published inJournal of water process engineering Vol. 74; p. 107857
Main Authors Chen, Dongxinyu, Deng, Yuwei, Cui, Boyan, Mei, Shou, Xiao, Lixi, Zhou, Huo, Zhan, Ziyi, Wang, Rongling, Pei, Xuanyuan, Li, Qiang, Wan, Jun, Ye, Yuxuan, Pan, Fei
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2025
Subjects
Adsorption
Phytic acid
Porous carbon
Ramie fiber
Tetracycline removal
Porous carbon
Tetracycline removal
Ramie fiber
Adsorption
Phytic acid
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Summary:Tetracyclines are widely adopted in various industries and ubiquitous in wastewater, and developing efficient removal technologies remains a challenge. In this study, a phytic acid pre-modulated porous carbon originating from ramie fiber (PARPC) was prepared to remove tetracycline from water. Batch experiments showed that PARPC had excellent adsorption capacity (Qmax = 520.47 mg/g) for TC, whereas the adsorption of TC by the carbon material without PA pretreatment (RPC) was almost negligible. Various coexisting substances (sulfate, nitrate, chloride, phosphate, carbonate, and humic acid) had a negligible effect on the adsorption of TC by PARPC. FTIR, XPS, and DFT analysis indicated that π-π bonding and C-O-P formation were responsible for TC adsorption. The fix-bed system further verified that PARPC was capable of continuously treating TC-containing wastewater for >600-bed volume (BV). The depleted PARPC was completely regenerated by NaOH solution without significant reduction in treating capacity. This study not only presents a novel concept for preparing functional adsorbent, but also offers an effective solution for addressing antibiotic pollutants in aqueous environments. [Display omitted] •Ramie fiber derived porous carbon is prepared through phytic acid modification.•π-π bonding and C-O-P formation are responsible for TCH adsorption•The adsorbent shows satisfactory TCH adsorption in continuous flow system
ISSN:2214-7144
2214-7144
DOI:10.1016/j.jwpe.2025.107857