{"title":"β-环糊精改性磁性丝瓜生物炭对废水中Ni(II)的高效去除","authors":"Wang Xueping, Zhang Zhe","doi":"10.1007/s13399-024-06173-1","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, a β-CD modified magnetic loofah biochar adsorbent (LB-MCD) was fabricated and its successful composite was demonstrated using diverse physical and chemical properties. The adsorbent has excellent specific surface area (29.46 m<sup>2</sup> g<sup>−1</sup>) and magnetic separation ability (magnetization strength of 18.78 emu g<sup>−1</sup>) and can rapidly separate ammonia nitrogen from wastewater within 50 s under the action of an applied magnetic field. The adsorption process was well correlated with the quasi-secondary kinetic model and Langmuir model (the Langmuir model fit value was 83.3 mg g<sup>−1</sup>), and the adsorption reached the equilibrium in about 90 min, which was mainly carried out by monolayer adsorption, and the adsorption process was spontaneous and heat-absorbing. The LB-MCD had an excellent cycling performance, and its initial capacity (the dosage of LB-MCD was 0.06 g, the concentration of Ni(II) was7.65 mg g<sup>−1</sup>, adsorption time was 100 min, and the pH = 7) was still 80% after 8 cycles of experiments. The LB-MCD showed excellent Ni(II) removal (R% > 90) in various aqueous environments, including deionized water, tap water, lake water, and industrial wastewater. In conclusion, LB-MCD is an eco-friendly and potent adsorbent for the removal of Ni(II) from wastewater.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"14941 - 14952"},"PeriodicalIF":3.5000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"β-Cyclodextrin modified magnetic luffa biochar for efficient removal of Ni(II) from wastewater\",\"authors\":\"Wang Xueping, Zhang Zhe\",\"doi\":\"10.1007/s13399-024-06173-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this study, a β-CD modified magnetic loofah biochar adsorbent (LB-MCD) was fabricated and its successful composite was demonstrated using diverse physical and chemical properties. The adsorbent has excellent specific surface area (29.46 m<sup>2</sup> g<sup>−1</sup>) and magnetic separation ability (magnetization strength of 18.78 emu g<sup>−1</sup>) and can rapidly separate ammonia nitrogen from wastewater within 50 s under the action of an applied magnetic field. The adsorption process was well correlated with the quasi-secondary kinetic model and Langmuir model (the Langmuir model fit value was 83.3 mg g<sup>−1</sup>), and the adsorption reached the equilibrium in about 90 min, which was mainly carried out by monolayer adsorption, and the adsorption process was spontaneous and heat-absorbing. The LB-MCD had an excellent cycling performance, and its initial capacity (the dosage of LB-MCD was 0.06 g, the concentration of Ni(II) was7.65 mg g<sup>−1</sup>, adsorption time was 100 min, and the pH = 7) was still 80% after 8 cycles of experiments. The LB-MCD showed excellent Ni(II) removal (R% > 90) in various aqueous environments, including deionized water, tap water, lake water, and industrial wastewater. In conclusion, LB-MCD is an eco-friendly and potent adsorbent for the removal of Ni(II) from wastewater.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":488,\"journal\":{\"name\":\"Biomass Conversion and Biorefinery\",\"volume\":\"15 10\",\"pages\":\"14941 - 14952\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-09-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biomass Conversion and Biorefinery\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13399-024-06173-1\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomass Conversion and Biorefinery","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13399-024-06173-1","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
β-Cyclodextrin modified magnetic luffa biochar for efficient removal of Ni(II) from wastewater
In this study, a β-CD modified magnetic loofah biochar adsorbent (LB-MCD) was fabricated and its successful composite was demonstrated using diverse physical and chemical properties. The adsorbent has excellent specific surface area (29.46 m2 g−1) and magnetic separation ability (magnetization strength of 18.78 emu g−1) and can rapidly separate ammonia nitrogen from wastewater within 50 s under the action of an applied magnetic field. The adsorption process was well correlated with the quasi-secondary kinetic model and Langmuir model (the Langmuir model fit value was 83.3 mg g−1), and the adsorption reached the equilibrium in about 90 min, which was mainly carried out by monolayer adsorption, and the adsorption process was spontaneous and heat-absorbing. The LB-MCD had an excellent cycling performance, and its initial capacity (the dosage of LB-MCD was 0.06 g, the concentration of Ni(II) was7.65 mg g−1, adsorption time was 100 min, and the pH = 7) was still 80% after 8 cycles of experiments. The LB-MCD showed excellent Ni(II) removal (R% > 90) in various aqueous environments, including deionized water, tap water, lake water, and industrial wastewater. In conclusion, LB-MCD is an eco-friendly and potent adsorbent for the removal of Ni(II) from wastewater.
期刊介绍:
Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.