Experimental and theoretical analysis of simultaneous removal of methylene blue and tetracycline using boron nitride nanosheets as adsorbent

吸附 朗缪尔吸附模型 氮化硼 轨道能级差 单层 高分辨率透射电子显微镜 化学 傅里叶变换红外光谱 材料科学 分析化学(期刊) 水溶液 透射电子显微镜 化学工程 核化学 物理化学 纳米技术 有机化学 分子 工程类
作者
Raghubeer Singh Bangari,Anshul Yadav,Prachi Awasthi,Niraj Sinha
出处
期刊:Colloids and Surfaces A: Physicochemical and Engineering Aspects [Elsevier BV]
卷期号:634: 127943-127943 被引量:47
标识
DOI:10.1016/j.colsurfa.2021.127943
摘要

The adsorption behaviour of boron nitride nanosheets (BNNSs) for the removal of methylene blue (MB) dye and tetracycline (TC) antibiotic from aqueous solution has been reported in this study. BNNSs were synthesized using a bottom-up technique with boric acid and urea as precursors. The synthesized material was characterized using high-resolution transmission electron microscopy, field emission scanning electron microscopy, atomic force microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy for morphological and structural analysis. Through kinetic studies, it was revealed that the pseudo-second-order model was obeyed by both MB and TC. The isotherm study showed that the adsorption was followed by the Langmuir model for the mixture of MB and TC, indicating that monolayer adsorption was preferred on the adsorbent. The BNNSs adsorbent could remove the mixture of MB and TC, and a maximum adsorption capacity of 322.5 mg/g was found. Further, it was easily separable and exhibited regeneration properties. The simultaneous adsorption characteristics of MB and TC on the surface of BNNSs has been investigated through the density functional theory (DFT) calculations to explore the adsorbing capabilities of BNNSs. This analysis investigates electrostatic potential, atomic charge distribution, electron density contour, and electron localization function projection. The current study demonstrates the sensing potential of BNNSs for adsorption of both MB and TC, simultaneously since the gap between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO), i.e., HLG decreased to 1.54 eV. Further, chemical activity, electrical conductivity is quite high in the adsorption process. Also, negative charge transfer from the contaminant to BNNS takes place. The adsorption energy for MB-BNNS, TC-BNNS and MB+TC-BNNS were calculated to be − 117 kJ mol-1, − 1055 kJ mol-1, and − 844 kJ mol-1, respectively. These theoretical and experimental results show the promise of BNNSs as adsorbents for simultaneous adsorption of dyes and antibiotics from contaminated wastewater.
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
谢谢不会谢完成签到 ,获得积分10
刚刚
墨菲特发布了新的文献求助10
刚刚
科研通AI5应助shasha采纳,获得10
刚刚
味道发布了新的文献求助10
刚刚
1秒前
syt完成签到,获得积分10
1秒前
sh完成签到,获得积分10
1秒前
1秒前
善学以致用应助kyrie采纳,获得10
2秒前
3秒前
science_idot发布了新的文献求助10
3秒前
4秒前
4秒前
Kaz关闭了Kaz文献求助
5秒前
量子星尘发布了新的文献求助10
5秒前
xs完成签到,获得积分10
6秒前
6秒前
科研通AI5应助味道采纳,获得10
7秒前
爆米花应助hyfwkd采纳,获得10
7秒前
Nobita发布了新的文献求助10
8秒前
乖猫要努力应助tc采纳,获得10
8秒前
摩羯座小黄鸭完成签到,获得积分10
9秒前
sigla发布了新的文献求助10
9秒前
9秒前
li发布了新的文献求助10
9秒前
我是老大应助sunhealth采纳,获得20
10秒前
ding应助光亮元枫采纳,获得10
10秒前
柏康娜完成签到,获得积分10
10秒前
JamesPei应助梨子采纳,获得10
12秒前
科目三应助诸天蓉采纳,获得10
12秒前
13秒前
希望天下0贩的0应助cc采纳,获得10
13秒前
可爱的函函应助alexye619采纳,获得10
14秒前
羔羊发布了新的文献求助10
14秒前
gzsy完成签到,获得积分10
15秒前
15秒前
刘尹完成签到,获得积分10
15秒前
16秒前
脑洞疼应助sigla采纳,获得10
16秒前
刘唐荣完成签到,获得积分10
17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
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
不知道标题是什么 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 3970062
求助须知:如何正确求助?哪些是违规求助? 3514782
关于积分的说明 11175968
捐赠科研通 3250119
什么是DOI,文献DOI怎么找? 1795198
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 804951