Amputation of Remazol brilliant blue dye on crosslinked chitosan hydrogel: Statistical treatment and experimental evaluation

吸附 朗缪尔吸附模型 壳聚糖 生物高聚物 水溶液 化学 核化学 动力学 化学工程 色谱法 材料科学 有机化学 聚合物 物理 量子力学 工程类
作者
Vaishnavi Gomase,Tejaswini A. Rathi,D. Saravanan,Ravin Jugade
出处
期刊:Environmental Research [Elsevier BV]
卷期号:252: 118764-118764
标识
DOI:10.1016/j.envres.2024.118764
摘要

The primary aim of this research is to comprehensively assess the applicability of chitosan biopolymer towards water treatment application and to enhance its adsorption capacity towards Remazol brilliant blue R-19 dye. This has been achieved through physical modification to obtain the material in hydrogel form and chemical modification by crosslinking it with barbituric acid. The characterization of the resulting Chitosan-barbituric acid hydrogel (CBH) was carried out using various analytical techniques such as SEM-EDX, FT-IR, TGA-DTA, XRD, and BET. CBH was employed as the adsorbent to eliminate R-19 dye from aqueous media. Utilizing response surface methodology (RSM), the parameters were fine-tuned, leading to the achievement of more than a 95% removal for R-19 dye. The adsorption behavior closely adhered to the Langmuir isotherm and pseudo-second-order kinetics. An interesting observation indicated that the rise in temperature leads to rise in adsorption capacity of CBH. The maximum adsorption capacities evaluated at 301.15 K, 313.15 K, 318.15 K, and 323.15 K were 566.6 mg g-1, 624.7 mg g-1, 671.3 mg g-1, and 713.5 mg g-1 respectively, in accordance with the Langmuir isotherm model. Examining the thermodynamics of the adsorption process revealed its spontaneous nature (ΔG = -21.14 to -27.09 kJ mol-1) across the entire temperature range. Furthermore, the assessment of the isosteric heat of adsorption (ΔHads) was conducted using the Clausius-Clapeyron equation, with results indicating an increase in ΔHads from 1.85 to 2.16 kJ mol-1 with temperature rise from 301.15 K to 323.15 K due to augmented surface loading. This suggested the existence of lateral interactions between the adsorbed dye molecules. The potential of adsorbent for regeneration was investigated, demonstrating the ability to reuse the material. Sustainability parameter calculated for synthesis process reflected a notably low E-factor value of 0.32 demonstrated the synthesis is environment friendly.
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
李健应助斯文明杰采纳,获得10
1秒前
淡淡书白完成签到,获得积分10
1秒前
H t发布了新的文献求助10
2秒前
2秒前
迷路猕猴桃完成签到,获得积分20
2秒前
星川发布了新的文献求助10
2秒前
2秒前
2秒前
2秒前
www关注了科研通微信公众号
2秒前
量子星尘发布了新的文献求助10
3秒前
科研通AI2S应助ahua15s采纳,获得10
3秒前
君君应助ahua15s采纳,获得10
3秒前
peanuttt完成签到,获得积分10
4秒前
4秒前
gean发布了新的文献求助10
4秒前
Joker_Guo关注了科研通微信公众号
4秒前
5秒前
peanuttt发布了新的文献求助30
6秒前
张经纬完成签到,获得积分20
7秒前
eric完成签到,获得积分10
7秒前
8秒前
李健的小迷弟应助gean采纳,获得10
8秒前
8秒前
打打应助精灵采纳,获得10
9秒前
9秒前
山260完成签到 ,获得积分10
10秒前
高文雅完成签到,获得积分10
11秒前
11秒前
哈吉米完成签到,获得积分20
12秒前
tae117完成签到,获得积分10
12秒前
12秒前
1351567822应助Cold采纳,获得10
13秒前
忧伤的大壮完成签到,获得积分10
13秒前
lpy发布了新的文献求助10
13秒前
背后海亦发布了新的文献求助10
14秒前
catch完成签到,获得积分10
14秒前
14秒前
ssss发布了新的文献求助10
15秒前
fengbo完成签到,获得积分10
15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 3970172
求助须知:如何正确求助?哪些是违规求助? 3514982
关于积分的说明 11176568
捐赠科研通 3250212
什么是DOI,文献DOI怎么找? 1795198
邀请新用户注册赠送积分活动 875702
科研通“疑难数据库(出版商)”最低求助积分说明 805004