Bixin as a new class of biosorbent for Hg2+ removal from aqueous solutions

化学 水溶液 弗伦德利希方程 吸附 吸附剂 朗缪尔 核化学 朗缪尔吸附模型 色谱法 吸附 有机化学
作者
Júlia Condé Vieira,Mariana Cristine Coelho Diniz,Louise Aparecida Mendes,Rubén Dário Sinisterra Millán,Guilherme Dias Rodrigues,Ricardo Mathias Orlando,Cláudia Carvalhinho Windmöller
出处
期刊:Environmental Nanotechnology, Monitoring and Management [Elsevier BV]
卷期号:15: 100407-100407 被引量:2
标识
DOI:10.1016/j.enmm.2020.100407
摘要

In this study, the apocarotenoid bixin was investigated as a potential biosorbent for Hg2+ in aqueous solutions. Bixin was used to form a thin film on an inert support using the drop-coating technique. This film was characterised using ATR-FTIR, SEM, and TGA-DTG techniques. Parameters that influence adsorption, such as pH, temperature, NaCl concentration, salt type, bixin mass, and supports for the bixin film, were evaluated. Using 0.112 mg of a bixin covering on a cellulose filter, the sorbent material was able to remove 75 % of Hg2+ from a 2.0 mL, 0.3 mg g−1, pH 6.00, 25 °C solution after 180 min of contact. Kinetics studies were carried out between 5 and 1440 min, and the pseudo-first-order adsorption model was applied. Equilibrium isotherm data were analysed, and the best fit was for the non-linear Freundlich model, with an R2 of 0.9868, RMSE of 0.37, and maximum sorption capacity of 85.38 mg g−1 obtained by the Langmuir model. The bixin film was applied in spiked environmental samples (lake and mining effluent), and it achieved 86 % Hg2+ removal. The results show that the bixin film is a suitable alternative for efficiently removing mercury from various aqueous systems. This introduces a new class of biosorbent based on apocarotenoids, which are sustainable, low cost, nontoxic, and easily obtainable.
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
PDF的下载单位、IP信息已删除 (2025-6-4)

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
1秒前
wy.he应助gsh采纳,获得10
2秒前
wy.he应助gsh采纳,获得10
2秒前
Steven发布了新的文献求助10
4秒前
4秒前
qiqi完成签到,获得积分10
5秒前
苇一发布了新的文献求助10
7秒前
彭于晏应助Miki采纳,获得10
7秒前
liyizhe完成签到 ,获得积分10
8秒前
丘比特应助Cici采纳,获得10
8秒前
8秒前
renyi发布了新的文献求助10
8秒前
不知名网友完成签到,获得积分10
9秒前
mola完成签到,获得积分10
10秒前
mmm完成签到,获得积分10
10秒前
10秒前
10秒前
乐观的香菱完成签到,获得积分10
11秒前
Chandler完成签到,获得积分10
11秒前
fangy34关注了科研通微信公众号
12秒前
温暖的以旋完成签到,获得积分10
12秒前
12秒前
Lord完成签到 ,获得积分10
13秒前
mola发布了新的文献求助10
13秒前
CAST1347完成签到,获得积分10
13秒前
kiwiii发布了新的文献求助10
14秒前
Ava应助风趣采白采纳,获得10
15秒前
欣慰的天奇完成签到,获得积分20
16秒前
16秒前
诸葛藏藏完成签到,获得积分10
16秒前
曹沛岚发布了新的文献求助10
18秒前
18秒前
卡卡西应助KellyJ采纳,获得20
19秒前
19秒前
现代完成签到,获得积分10
19秒前
20秒前
等光来完成签到,获得积分10
20秒前
20秒前
bm发布了新的文献求助10
22秒前
22秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Toward a Combinatorial Approach for the Prediction of IgG Half-Life and Clearance 500
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 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 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3970004
求助须知:如何正确求助?哪些是违规求助? 3514701
关于积分的说明 11175468
捐赠科研通 3250051
什么是DOI,文献DOI怎么找? 1795187
邀请新用户注册赠送积分活动 875630
科研通“疑难数据库(出版商)”最低求助积分说明 804925