{"title":"炭黑/壳聚糖微珠复合材料高效去除水生环境中的全氟辛烷磺酸(PFOS","authors":"Zeinab Salimi Torkamani, Wooriya Tarokh, Majid Baghdadi","doi":"10.1007/s11814-025-00479-0","DOIUrl":null,"url":null,"abstract":"<div><p>Perfluorooctane sulfonic acid (PFOS) is a persistent environmental pollutant, putting human health at risk. Therefore, in this article, a novel composite was prepared by incorporating carbon black into chitosan and used as an adsorbent to efficiently remove PFOS from aqueous environments. The incorporation of carbon black into chitosan showed great modification on the structure of chitosan, which resulted in more porosity and higher surface area, resulting in better adsorption capacity. The best carbon black/chitosan mass ratio under both acidic and neutral conditions was found to be 0.5, and the optimum removal efficiency under the optimum conditions (pH: 2, 0.3 g adsorbent dosage, 5 mg L<sup>−1</sup> PFOS concentration, and 5 h contact time) was found to be 92%. The FESEM and BET analysis resulted in greater porosity and more hollow structure as well as enhanced specific surface area of the carbon black/chitosan beads (CBCHB) adsorbent in comparison to chitosan beads (CHB). Freundlich isotherm model fits the equilibrium adsorption isotherm data better than the Langmuir model. The maximum adsorption capacity (<i>q</i><sub>m</sub>) under acidic conditions (pH: 2) was 359.38 mg g<sup>−1</sup>. Furthermore, the CBCHB adsorbent was capable of being reused after being washed 5 times and exhibiting a slight decline in removal efficiency.</p></div>","PeriodicalId":684,"journal":{"name":"Korean Journal of Chemical Engineering","volume":"42 8","pages":"1745 - 1756"},"PeriodicalIF":3.2000,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficient Removal of Perfluorooctane Sulfonic Acid (PFOS) from Aquatic Environment Using Carbon Black/Chitosan Beads Composite\",\"authors\":\"Zeinab Salimi Torkamani, Wooriya Tarokh, Majid Baghdadi\",\"doi\":\"10.1007/s11814-025-00479-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Perfluorooctane sulfonic acid (PFOS) is a persistent environmental pollutant, putting human health at risk. Therefore, in this article, a novel composite was prepared by incorporating carbon black into chitosan and used as an adsorbent to efficiently remove PFOS from aqueous environments. The incorporation of carbon black into chitosan showed great modification on the structure of chitosan, which resulted in more porosity and higher surface area, resulting in better adsorption capacity. The best carbon black/chitosan mass ratio under both acidic and neutral conditions was found to be 0.5, and the optimum removal efficiency under the optimum conditions (pH: 2, 0.3 g adsorbent dosage, 5 mg L<sup>−1</sup> PFOS concentration, and 5 h contact time) was found to be 92%. The FESEM and BET analysis resulted in greater porosity and more hollow structure as well as enhanced specific surface area of the carbon black/chitosan beads (CBCHB) adsorbent in comparison to chitosan beads (CHB). Freundlich isotherm model fits the equilibrium adsorption isotherm data better than the Langmuir model. The maximum adsorption capacity (<i>q</i><sub>m</sub>) under acidic conditions (pH: 2) was 359.38 mg g<sup>−1</sup>. Furthermore, the CBCHB adsorbent was capable of being reused after being washed 5 times and exhibiting a slight decline in removal efficiency.</p></div>\",\"PeriodicalId\":684,\"journal\":{\"name\":\"Korean Journal of Chemical Engineering\",\"volume\":\"42 8\",\"pages\":\"1745 - 1756\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-05-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Korean Journal of Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11814-025-00479-0\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Korean Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11814-025-00479-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Efficient Removal of Perfluorooctane Sulfonic Acid (PFOS) from Aquatic Environment Using Carbon Black/Chitosan Beads Composite
Perfluorooctane sulfonic acid (PFOS) is a persistent environmental pollutant, putting human health at risk. Therefore, in this article, a novel composite was prepared by incorporating carbon black into chitosan and used as an adsorbent to efficiently remove PFOS from aqueous environments. The incorporation of carbon black into chitosan showed great modification on the structure of chitosan, which resulted in more porosity and higher surface area, resulting in better adsorption capacity. The best carbon black/chitosan mass ratio under both acidic and neutral conditions was found to be 0.5, and the optimum removal efficiency under the optimum conditions (pH: 2, 0.3 g adsorbent dosage, 5 mg L−1 PFOS concentration, and 5 h contact time) was found to be 92%. The FESEM and BET analysis resulted in greater porosity and more hollow structure as well as enhanced specific surface area of the carbon black/chitosan beads (CBCHB) adsorbent in comparison to chitosan beads (CHB). Freundlich isotherm model fits the equilibrium adsorption isotherm data better than the Langmuir model. The maximum adsorption capacity (qm) under acidic conditions (pH: 2) was 359.38 mg g−1. Furthermore, the CBCHB adsorbent was capable of being reused after being washed 5 times and exhibiting a slight decline in removal efficiency.
期刊介绍:
The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.