Magnetic alginate/glycodendrimer beads for efficient removal of tetracycline and amoxicillin from aqueous solutions

吸附 水溶液 离子强度 化学 朗缪尔 朗缪尔吸附模型 吸热过程 核化学 弗伦德利希方程 盐酸四环素 Zeta电位 色谱法 四环素 有机化学 抗生素 材料科学 纳米技术 纳米颗粒 生物化学
作者
Soheyla Karimi,Hassan Namazi
出处
期刊:International Journal of Biological Macromolecules [Elsevier]
卷期号:205: 128-140 被引量:40
标识
DOI:10.1016/j.ijbiomac.2022.02.066
摘要

The release of antibiotic drugs into aquatic environments is a serious environmental and health problem in recent years. Therefore, the development of potential adsorbents for the effective removal of tetracycline (TC) and amoxicillin (AMX) of aqueous media is of great importance. In this study, new alginate beads were successfully prepared by encapsulation of Fe 3 O 4 @maltose-functionalized triazine dendrimer in alginate (Alg/Fe 3 O 4 @C@TD) for the first time. The obtained beads were utilized as a well adsorbent for the removal of TC and AMX antibiotics from aqueous solutions by batch adsorption procedure. The characteristics of the synthesized beads were investigated using FT-IR, Zeta potential, SEM, XRD, EDX, VSM, and BET. The effects of various operation factors such as adsorbent dose, pH of the solution, contact time, antibiotic initial concentration, temperature, and ionic strength on the removal of antibiotics were studied. Moreover, Langmuir and Freundlich adsorption isotherm results showed that the Langmuir model fitted well for the adsorption of both antibiotics onto Alg/Fe 3 O 4 @C@TD beads. Based on the Langmuir model, the maximum adsorption capacity of TC and AMX onto Alg/Fe 3 O 4 @C@TD beads at 25 °C was 454.54 and 400 mg/g, respectively. Kinetic and thermodynamic studies also indicated that the TC and AMX adsorption were found to be well fitted with a pseudo-second-order kinetic model, feasible, endothermic, and spontaneous in nature. In addition, the Alg/Fe 3 O 4 @C@TD beads showed excellent reusability for removal from both antibiotics after six adsorption cycles. Overall, the obtained results suggest that Alg/Fe 3 O 4 @C@TD beads could be considered as a low-cost and eco-friendly adsorbent for antibiotic contaminants removal from aquatic media. • Alginate encapsulated magnetic dendrimer beads were successfully prepared. • The prepared beads were used for the removal of tetracycline (TC) and amoxicillin (AMX) antibiotics from aqueous solutions. • The adsorption kinetics of TC and AMX on the beads was in good agreement with the pseudo-second-order kinetic model. • The thermodynamic study also indicated that the adsorption process was feasible, spontaneous, and endothermic.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
小C发布了新的文献求助10
1秒前
Akim应助ZQP采纳,获得10
2秒前
jiejie发布了新的文献求助30
2秒前
2秒前
2秒前
我想查文献完成签到,获得积分10
3秒前
玉米发布了新的文献求助30
3秒前
Singularity应助皮皮采纳,获得20
3秒前
yao应助li采纳,获得10
3秒前
djw发布了新的文献求助10
5秒前
英姑应助闪闪青雪采纳,获得10
5秒前
2222发布了新的文献求助10
6秒前
xinuo发布了新的文献求助10
6秒前
李健应助尊敬飞丹采纳,获得10
6秒前
789完成签到,获得积分20
6秒前
7秒前
maox1aoxin应助那个人采纳,获得30
9秒前
789发布了新的文献求助30
9秒前
丘比特应助果ghj采纳,获得10
12秒前
完美世界应助NIHAO采纳,获得10
12秒前
星辰大海应助xinuo采纳,获得10
13秒前
Dank1ng发布了新的文献求助10
14秒前
特昂唐完成签到,获得积分10
14秒前
djw完成签到,获得积分10
14秒前
小C完成签到,获得积分10
15秒前
18秒前
Singularity应助小元采纳,获得10
18秒前
吸灵气的猫完成签到,获得积分10
19秒前
bkagyin应助Nick采纳,获得10
19秒前
21秒前
21秒前
石石夏发布了新的文献求助10
22秒前
Ava应助wk采纳,获得30
23秒前
上官若男应助gfr123采纳,获得10
23秒前
刘小刘发布了新的文献求助10
26秒前
丰知然应助789采纳,获得10
26秒前
叽叽哒哒完成签到 ,获得积分10
27秒前
27秒前
香蕉觅云应助杨哈哈采纳,获得10
30秒前
思源应助一个橡果采纳,获得10
31秒前
高分求助中
Licensing Deals in Pharmaceuticals 2019-2024 3000
Cognitive Paradigms in Knowledge Organisation 2000
Effect of reactor temperature on FCC yield 2000
Introduction to Spectroscopic Ellipsometry of Thin Film Materials Instrumentation, Data Analysis, and Applications 1800
Natural History of Mantodea 螳螂的自然史 1000
A Photographic Guide to Mantis of China 常见螳螂野外识别手册 800
How Maoism Was Made: Reconstructing China, 1949-1965 800
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3313855
求助须知:如何正确求助?哪些是违规求助? 2946137
关于积分的说明 8528616
捐赠科研通 2621703
什么是DOI,文献DOI怎么找? 1434035
科研通“疑难数据库(出版商)”最低求助积分说明 665112
邀请新用户注册赠送积分活动 650691