Efficiency of a novel nitrogen-doped Fe3O4 impregnated biochar (N/Fe3O4@BC) for arsenic (III and V) removal from aqueous solution: Insight into mechanistic understanding and reusability potential

生物炭 化学 砷酸盐 吸附 水溶液 吸附 朗缪尔吸附模型 磁铁矿 亚砷酸盐 傅里叶变换红外光谱 核化学 无机化学 化学工程 有机化学 冶金 材料科学 热解 工程类
作者
Hamid Ali,Saeed Ahmed,Abdelghani Hsini,Simon Kizito,Yassine Naciri,Ridha Djellabi‬‬‬‬‬‬‬‬,Muhammad Abid,Waseem Raza,Noor Hassan,Muhammad Saif Ur Rehman,Asif Jamal Khan,Muhammad Azhar Khan,Muhammad Zia Ul Haq,Dominic Aboagye,Muhammad Irshad,Munawar Hassan,Asif Hayat,Bo Wu,Abdul Qadeer,Zeeshan Ajmal
出处
期刊:Arabian Journal of Chemistry [Elsevier BV]
卷期号:15 (11): 104209-104209 被引量:36
标识
DOI:10.1016/j.arabjc.2022.104209
摘要

Worldwide, arsenic contamination has become a matter of extreme importance owing to its potential toxic, carcinogenic and mutagenic impact on human health and the environment. The magnetite-loaded biochar has received increasing attention for the removal of arsenic (As) in contaminated water and soil. The present study reports a facile synthesis, characterization and adsorption characteristics of a novel magnetite impregnated nitrogen-doped hybrid biochar (N/Fe3O4@BC) for efficient arsenate, As(V) and arsenite, As(III) removal from aqueous environment. The as-synthesized material (N/Fe3O4@BC) characterization via XRD, BET, FTIR, SEM/EDS clearly revealed magnetite (Fe3O4) impregnation onto biochar matrix. Furthermore, the adsorbent (N/Fe3O4@BC) selectivity results showed that such a combination plays an important role in targeted molecule removal from aqueous environments and compensates for the reduced surface area. The maximum monolayer adsorption (Qmax) of developed adsorbent (N/Fe3O4@BC) (18.15 mg/g and 9.87 mg/g) was significantly higher than that of pristine biochar (BC) (9.89 & 8.12 mg/g) and magnetite nano-particles (MNPs) [7.38 & 8.56 mg/g] for both As(III) and As(V), respectively. Isotherm and kinetic data were well fitted by Langmuir (R2 = 0.993) and Pseudo first order model (R2 = 0.992) thereby indicating physico-chemical sorption as a rate-limiting step. The co-anions (PO43-) effect was more significant for both As(III) and As (V) removal owing to similar outer electronic structure. Mechanistic insights (pH and FTIR spectra) further demonstrated the remarkable contribution of surface groups (OH–, –NH2 and –COOH), electrostatic attraction (via H- bonds), surface complexation and ion exchange followed by external mass transfer diffusion and As(III) oxidation into As(V) by (N/Fe3O4@BC) reactive oxygen species. Moreover, successful desorption was achieved at varying rates up to 7th regeneration cycle thereby showing (N/Fe3O4@BC) potential practical application. Thus, this work provides a novel insight for the fabrication of novel magnetic biochar for As removal from contaminated water in natural, engineering and environmental settings.
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
小彭友完成签到,获得积分10
6秒前
7秒前
josie完成签到 ,获得积分10
11秒前
llll完成签到 ,获得积分10
11秒前
量子星尘发布了新的文献求助10
11秒前
韭菜发布了新的文献求助10
11秒前
外向的斑马完成签到 ,获得积分10
12秒前
村长热爱美丽完成签到 ,获得积分10
14秒前
尹尹关注了科研通微信公众号
16秒前
呆呆完成签到 ,获得积分10
17秒前
xianyaoz完成签到 ,获得积分0
24秒前
杨远杰完成签到,获得积分10
25秒前
蓝桉完成签到 ,获得积分10
25秒前
JuliaWang完成签到 ,获得积分10
32秒前
无限的含羞草完成签到,获得积分10
33秒前
八二力完成签到 ,获得积分10
37秒前
韭菜发布了新的文献求助10
40秒前
情怀应助科研通管家采纳,获得30
43秒前
water应助科研通管家采纳,获得10
43秒前
JamesPei应助科研通管家采纳,获得10
43秒前
2012csc完成签到 ,获得积分0
45秒前
风清扬应助韭菜采纳,获得10
46秒前
WSY完成签到 ,获得积分10
47秒前
虞无声发布了新的文献求助10
48秒前
执着新蕾完成签到,获得积分10
50秒前
Vivian完成签到 ,获得积分10
53秒前
666完成签到 ,获得积分10
55秒前
1分钟前
量子星尘发布了新的文献求助10
1分钟前
蔡从安完成签到,获得积分10
1分钟前
奥雷里亚诺完成签到 ,获得积分10
1分钟前
不呆完成签到 ,获得积分10
1分钟前
Cheung2121发布了新的文献求助30
1分钟前
画龙完成签到,获得积分10
1分钟前
韭菜完成签到,获得积分20
1分钟前
Owen应助Cheung2121采纳,获得10
1分钟前
爱学习的小李完成签到 ,获得积分10
1分钟前
若水完成签到 ,获得积分10
1分钟前
SYLH应助tian采纳,获得10
1分钟前
脑洞疼应助tian采纳,获得10
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038112
求助须知:如何正确求助?哪些是违规求助? 3575788
关于积分的说明 11373801
捐赠科研通 3305604
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022