A facile method to synthesize nZVI-doped polypyrrole-based carbon nanotube for Ag(i) removal
Abstract The pollution of silver ion (Ag(i)) has become a serious environmental threat and hazard to ecosystem and human health. Thus, the nanoscale zero valent iron (nZVI)-doped polypyrrole-based carbon nanotube (nZVI/CNT) composites were synthesized by a facile method to remove Ag(i) from wastewater due to the toxicity and scarcity nature of Ag(i). In this process, $ Fe^{3+} $ initiated the self-assembly of polypyrrole tubes in the presence of methyl orange, while it also served as an iron source generated nZVI/CNTs by carbothermal reduction method. The nZVI/CNT composites exhibited a homogeneous tubular structure, and the nZVI formed were uniformly dispersed in the nZVI/CNT composites. The nZVI/CNT composites were used as an adsorbent for the removal of Ag(i) and showed a higher adsorption capacity compared to nZVI and CNTs, with a maximum adsorption capacity of 522.41 mg $ g^{−1} $. Ag(i) was adsorbed on nZVI/CNT composites by ion exchange and chelation, where Ag(i) was reduced to non-toxic Ag due to the redox reaction among pyrrolic-N, nZVI, and Ag(i). The adsorption process of Ag(i) on nZVI/CNT composites was dominated by monolayer adsorption. According to our results, nZVI/CNT composites can be used as economical treatment for wastewater containing Ag(i)..
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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Enthalten in: |
Nanotechnology reviews - 12(2023), 1 vom: 25. Okt. |
Sprache: |
Englisch |
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Beteiligte Personen: |
Zhang, Wen-Juan [VerfasserIn] |
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Links: |
Volltext [kostenfrei] |
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BKL: |
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Anmerkungen: |
© 2023 the author(s), published by De Gruyter |
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doi: |
10.1515/ntrev-2023-0114 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
GRUY009274650 |
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520 | |a Abstract The pollution of silver ion (Ag(i)) has become a serious environmental threat and hazard to ecosystem and human health. Thus, the nanoscale zero valent iron (nZVI)-doped polypyrrole-based carbon nanotube (nZVI/CNT) composites were synthesized by a facile method to remove Ag(i) from wastewater due to the toxicity and scarcity nature of Ag(i). In this process, $ Fe^{3+} $ initiated the self-assembly of polypyrrole tubes in the presence of methyl orange, while it also served as an iron source generated nZVI/CNTs by carbothermal reduction method. The nZVI/CNT composites exhibited a homogeneous tubular structure, and the nZVI formed were uniformly dispersed in the nZVI/CNT composites. The nZVI/CNT composites were used as an adsorbent for the removal of Ag(i) and showed a higher adsorption capacity compared to nZVI and CNTs, with a maximum adsorption capacity of 522.41 mg $ g^{−1} $. Ag(i) was adsorbed on nZVI/CNT composites by ion exchange and chelation, where Ag(i) was reduced to non-toxic Ag due to the redox reaction among pyrrolic-N, nZVI, and Ag(i). The adsorption process of Ag(i) on nZVI/CNT composites was dominated by monolayer adsorption. According to our results, nZVI/CNT composites can be used as economical treatment for wastewater containing Ag(i). | ||
700 | 1 | |a Ding, Ye-Zhi |4 aut | |
700 | 1 | |a Wang, Ya-Xian |4 aut | |
700 | 1 | |a Wang, You-Liang |4 aut | |
700 | 1 | |a Fei, Yu-Long |4 aut | |
700 | 1 | |a Ran, Meng-Yu |4 aut | |
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