Blue Economy最新文献

Synthesis and Characterization of UiO-66-NH2 (Zr) Metal–Organic Frameworks: Chitosan and its aminated derivatives to remove toxic Cr (VI) from Industrial Wastewater UiO-66-NH2 （Zr）金属有机骨架：壳聚糖及其胺化衍生物去除工业废水中有毒Cr （VI）的合成与表征

Blue Economy Pub Date : 2024-09-22 DOI: 10.57241/2805-2994.1028

Bassma M. Ali, Zainab Z. Ali, Elen Emad, Ragaa Ahmed, Ayat Khasawneh, Khalideh Al bkoor Alrawashdeh, Rebhi A. Damseh, Jalal A. Al-Tabbal, Kamel K. Al‐Zboon, Petros Samaras, Yasser G. Dessouky, Kareem Tonbol

{"title":"Synthesis and Characterization of UiO-66-NH2 (Zr) Metal–Organic Frameworks: Chitosan and its aminated derivatives to remove toxic Cr (VI) from Industrial Wastewater","authors":"Bassma M. Ali, Zainab Z. Ali, Elen Emad, Ragaa Ahmed, Ayat Khasawneh, Khalideh Al bkoor Alrawashdeh, Rebhi A. Damseh, Jalal A. Al-Tabbal, Kamel K. Al‐Zboon, Petros Samaras, Yasser G. Dessouky, Kareem Tonbol","doi":"10.57241/2805-2994.1028","DOIUrl":"https://doi.org/10.57241/2805-2994.1028","url":null,"abstract":"This study used adsorbent hydrogel beads on chitosan coated with the commercially prepared metal-organic framework (MOF) and its aminated derivative to chromium (VI) ions from their aqueous solutions. Higher removal (%) and higher adsorption capacity values were recorded using chitosan and its aminated derivatives, UiO-66-NH2 (Zr) (0.5 % CS) adsorbent (87 % and 95 mgg-1), respectively, compared with those using CS adsorbent (86% and 93 mg/g using 1% CS); contact time was 180 min, with maximum removal (%) reaching 87% and maximum adsorption capacity of 95 mgg-1. The pH of the studied medium was in the range of 1–8. It was found that the maximum values of removal (%) and adsorption capacity values were observed at pH 2, and the Cr (VI) concentration was studied in the range of 10–200 ppm. The highest removal (%) was about 100 % using 10 and 25 ppm of Cr (VI), while the maximum adsorption capacity was found to be 132 mgg-1 and was recorded using 200 ppm of Cr (VI). Adsorption experiments at 150 rpm were conducted to record maximum adsorption capacity and higher removal (%) values. The developed adsorbent demonstrated good adsorption properties, with removal exceeding 60 % after six cycles and a maximum capacity of 52 mgg-1. In conclusion, the MOF/chitosan adsorbent beads have the potential to be a novel and effective large-scale adsorbent for the removal of hazardous Cr (VI) ions from industrial effluent.","PeriodicalId":325307,"journal":{"name":"Blue Economy","volume":"2 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147898197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}