Size-dependent As(V) adsorption of reduced graphene oxide/magnetite nanocomposites

IF 1.8 4区化学 Q3 CHEMISTRY, ANALYTICAL

Analytical Sciences Pub Date : 2024-09-06 DOI:10.1007/s44211-024-00657-w

Duc Dung Mai, Thanh Loan To, Thi Hang Bui, Thi Kim Lien Nguyen, Thi Kim Phuong Luong, Thi Lan Nguyen

{"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}

引用次数: 0

Abstract

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.

Graphical abstract

查看原文本刊更多论文

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。

水体资源中的砷（As(V)）污染因其高毒性而对环境和公众健康构成了重大威胁。为了应对这一挑战，我们合成了新型还原氧化石墨烯/磁铁矿（rGO/Fe3O4）纳米复合材料，并对其进行了表征。我们采用共沉淀法，通过控制盐浓度（Fe2+：Fe3+）比例，获得了三种不同尺寸的 rGO/Fe3O4 纳米复合材料。样品的吸附能力分析表明，90 分钟内吸附效率可达 98.10%，吸附容量值达 20.55 mg/g。此外，这些测试数据与提出吸附机理的伪秒阶模型和 Langmuir 模型均十分吻合。这些结果表明，我们合成的 rGO/Fe3O4 纳米复合材料是一种用于去除水中重金属的潜在吸附剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Analytical Sciences 化学-分析化学

CiteScore

2.90

自引率

18.80%

发文量

232

审稿时长

1 months

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.