亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

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
LZJ完成签到,获得积分10
1秒前
mind42发布了新的文献求助10
1秒前
mmyhn发布了新的文献求助200
3秒前
6秒前
小师叔完成签到,获得积分10
6秒前
8秒前
xiaoyu发布了新的文献求助10
12秒前
14秒前
16秒前
孙孙应助lQ采纳,获得10
16秒前
田一点发布了新的文献求助10
19秒前
田一点完成签到,获得积分10
24秒前
wansida完成签到,获得积分10
28秒前
喜悦宫苴完成签到,获得积分10
28秒前
33秒前
35秒前
辉哥发布了新的文献求助10
39秒前
量子星尘发布了新的文献求助10
40秒前
Lyl完成签到 ,获得积分10
43秒前
煜清清完成签到 ,获得积分10
49秒前
和谐山灵完成签到,获得积分20
52秒前
CodeCraft应助TIANNANXING采纳,获得10
54秒前
Akim应助辉哥采纳,获得10
54秒前
嗨是完成签到,获得积分10
56秒前
56秒前
59秒前
英俊的铭应助耷拉地啦采纳,获得10
1分钟前
yang完成签到,获得积分10
1分钟前
搜集达人应助一只小锦鲤采纳,获得10
1分钟前
情怀应助白日梦采纳,获得10
1分钟前
NeilGu完成签到,获得积分10
1分钟前
1分钟前
星期五完成签到,获得积分10
1分钟前
TIANNANXING发布了新的文献求助10
1分钟前
聪明小于完成签到 ,获得积分10
1分钟前
1分钟前
火星上誉完成签到 ,获得积分10
1分钟前
1分钟前
天天摸鱼完成签到,获得积分10
1分钟前
zhao完成签到,获得积分10
1分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976600
求助须知:如何正确求助?哪些是违规求助? 3520689
关于积分的说明 11204470
捐赠科研通 3257316
什么是DOI,文献DOI怎么找? 1798683
邀请新用户注册赠送积分活动 877881
科研通“疑难数据库(出版商)”最低求助积分说明 806613