Duc Dung Mai, Thanh Loan To, Thi Hang Bui, Thi Kim Lien Nguyen, Thi Kim Phuong Luong, Thi Lan Nguyen
{"title":"还原氧化石墨烯/磁铁矿纳米复合材料对 As(V) 的吸附与尺寸有关。","authors":"Duc Dung Mai, Thanh Loan To, Thi Hang Bui, Thi Kim Lien Nguyen, Thi Kim Phuong Luong, Thi Lan Nguyen","doi":"10.1007/s44211-024-00657-w","DOIUrl":null,"url":null,"abstract":"<div><p>Arsenic (As(V)) contamination in aqueous resources poses a significant environmental, and public health risk due to its high toxicity. To address this challenge, we synthesized and characterized novel reduced graphene oxide/magnetite (rGO/Fe<sub>3</sub>O<sub>4</sub>) nanocomposites, which are efficient adsorbents for removing As(V). Using a co-precipitation method, we obtained three distinct sizes of rGO/Fe<sub>3</sub>O<sub>4</sub> nanocomposites by controlling the salt concentration (Fe<sup>2+</sup>: Fe<sup>3+</sup>) ratios. Analysis of the adsorption ability of the samples shows that the adsorption efficiency can reach up to 98.10% within 90 min, and the adsorption capacity value reaches 20.55 mg/g. Furthermore, these test data are ably consistent with both the pseudo-second-order model and the Langmuir model, based on which the adsorption mechanism has been proposed. These results show that the rGO/Fe<sub>3</sub>O<sub>4</sub> nanocomposites that we synthesized are a potential adsorbent for the removal of heavy metals from water.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":"40 12","pages":"2213 - 2224"},"PeriodicalIF":1.8000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Size-dependent As(V) adsorption of reduced graphene oxide/magnetite nanocomposites\",\"authors\":\"Duc Dung Mai, Thanh Loan To, Thi Hang Bui, Thi Kim Lien Nguyen, Thi Kim Phuong Luong, Thi Lan Nguyen\",\"doi\":\"10.1007/s44211-024-00657-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Arsenic (As(V)) contamination in aqueous resources poses a significant environmental, and public health risk due to its high toxicity. To address this challenge, we synthesized and characterized novel reduced graphene oxide/magnetite (rGO/Fe<sub>3</sub>O<sub>4</sub>) nanocomposites, which are efficient adsorbents for removing As(V). Using a co-precipitation method, we obtained three distinct sizes of rGO/Fe<sub>3</sub>O<sub>4</sub> nanocomposites by controlling the salt concentration (Fe<sup>2+</sup>: Fe<sup>3+</sup>) ratios. Analysis of the adsorption ability of the samples shows that the adsorption efficiency can reach up to 98.10% within 90 min, and the adsorption capacity value reaches 20.55 mg/g. Furthermore, these test data are ably consistent with both the pseudo-second-order model and the Langmuir model, based on which the adsorption mechanism has been proposed. These results show that the rGO/Fe<sub>3</sub>O<sub>4</sub> nanocomposites that we synthesized are a potential adsorbent for the removal of heavy metals from water.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":7802,\"journal\":{\"name\":\"Analytical Sciences\",\"volume\":\"40 12\",\"pages\":\"2213 - 2224\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Analytical Sciences\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s44211-024-00657-w\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analytical Sciences","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s44211-024-00657-w","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Size-dependent As(V) adsorption of reduced graphene oxide/magnetite nanocomposites
Arsenic (As(V)) contamination in aqueous resources poses a significant environmental, and public health risk due to its high toxicity. To address this challenge, we synthesized and characterized novel reduced graphene oxide/magnetite (rGO/Fe3O4) nanocomposites, which are efficient adsorbents for removing As(V). Using a co-precipitation method, we obtained three distinct sizes of rGO/Fe3O4 nanocomposites by controlling the salt concentration (Fe2+: Fe3+) ratios. Analysis of the adsorption ability of the samples shows that the adsorption efficiency can reach up to 98.10% within 90 min, and the adsorption capacity value reaches 20.55 mg/g. Furthermore, these test data are ably consistent with both the pseudo-second-order model and the Langmuir model, based on which the adsorption mechanism has been proposed. These results show that the rGO/Fe3O4 nanocomposites that we synthesized are a potential adsorbent for the removal of heavy metals from water.
期刊介绍：
Analytical Sciences is an international journal published monthly by The Japan Society for Analytical Chemistry. The journal publishes papers on all aspects of the theory and practice of analytical sciences, including fundamental and applied, inorganic and organic, wet chemical and instrumental methods.
This publication is supported in part by the Grant-in-Aid for Publication of Scientific Research Result of the Japanese Ministry of Education, Culture, Sports, Science and Technology.
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