Yantao Yang, Yuanna Li, Wenkai Yang, Xiunan Cui, Tingzhou Lei
{"title":"纳米纤维素的制备、表面改性及其对 Cu2+ 的吸附性能","authors":"Yantao Yang, Yuanna Li, Wenkai Yang, Xiunan Cui, Tingzhou Lei","doi":"10.1166/jbmb.2024.2296","DOIUrl":null,"url":null,"abstract":"Nanocellulose fibers (NCFs) were converted to cellulose nanocrystals (CNCs) and then modified with diethylenetriamine pentaacetic acid (DTPA) to form modified CNCs (DTPA–CNCs), which were investigated as adsorbents for removing Cu2+ from aqueous solution. The adsorption behavior was affected by pH, contact time, dosage and raw Cu2+ concentration. Langmuir model is the best method to fit the adsorption isotherm of experimental results. The optimal conditions for Cu2+ adsorption were 2 h at 35 °C and pH 3, the optimal adsorption capacity is 94.5 mg/g. These functional groups on the DTPA–CNCs provided enhanced adsorption capacity, compared with unmodified NCFs.","PeriodicalId":15157,"journal":{"name":"Journal of Biobased Materials and Bioenergy","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and Surface Modification of Nanocellulose and Its Adsorption Performance on Cu2+\",\"authors\":\"Yantao Yang, Yuanna Li, Wenkai Yang, Xiunan Cui, Tingzhou Lei\",\"doi\":\"10.1166/jbmb.2024.2296\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Nanocellulose fibers (NCFs) were converted to cellulose nanocrystals (CNCs) and then modified with diethylenetriamine pentaacetic acid (DTPA) to form modified CNCs (DTPA–CNCs), which were investigated as adsorbents for removing Cu2+ from aqueous solution. The adsorption behavior was affected by pH, contact time, dosage and raw Cu2+ concentration. Langmuir model is the best method to fit the adsorption isotherm of experimental results. The optimal conditions for Cu2+ adsorption were 2 h at 35 °C and pH 3, the optimal adsorption capacity is 94.5 mg/g. These functional groups on the DTPA–CNCs provided enhanced adsorption capacity, compared with unmodified NCFs.\",\"PeriodicalId\":15157,\"journal\":{\"name\":\"Journal of Biobased Materials and Bioenergy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Biobased Materials and Bioenergy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1166/jbmb.2024.2296\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Biobased Materials and Bioenergy","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1166/jbmb.2024.2296","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Preparation and Surface Modification of Nanocellulose and Its Adsorption Performance on Cu2+
Nanocellulose fibers (NCFs) were converted to cellulose nanocrystals (CNCs) and then modified with diethylenetriamine pentaacetic acid (DTPA) to form modified CNCs (DTPA–CNCs), which were investigated as adsorbents for removing Cu2+ from aqueous solution. The adsorption behavior was affected by pH, contact time, dosage and raw Cu2+ concentration. Langmuir model is the best method to fit the adsorption isotherm of experimental results. The optimal conditions for Cu2+ adsorption were 2 h at 35 °C and pH 3, the optimal adsorption capacity is 94.5 mg/g. These functional groups on the DTPA–CNCs provided enhanced adsorption capacity, compared with unmodified NCFs.
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