A Highly Efficient Adsorbent Based on Starch-Graphene Oxide Architecture for Scavenging Aqueous Pb(II): Isotherms, Kinetics, Thermodynamics and Interaction Mechanism

Ting Guo; Chaoke Bulin; Bangwen ZhangZeyu MaRuiguang XingXin GeYanghuan ZhangBo Li

首页> 外文期刊>Journal of polymers and the environment >A Highly Efficient Adsorbent Based on Starch-Graphene Oxide Architecture for Scavenging Aqueous Pb(II): Isotherms, Kinetics, Thermodynamics and Interaction Mechanism

【24h】

A Highly Efficient Adsorbent Based on Starch-Graphene Oxide Architecture for Scavenging Aqueous Pb(II): Isotherms, Kinetics, Thermodynamics and Interaction Mechanism

机译：A Highly Efficient Adsorbent Based on Starch-Graphene Oxide Architecture for Scavenging Aqueous Pb(II): Isotherms, Kinetics, Thermodynamics and Interaction Mechanism

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Abstract Heavy metal pollution stems from the modern industry is a severe environmental problem. In this work, a highly efficient adsorbent based on starch-graphene oxide architecture (SGO) was fabricated, characterized and employed to scavenge aqueous Pb(II), a major water contaminant. The scavenging performance was evaluated, and the interaction mechanism between SGO and Pb(II) was elucidated. Results indicate, the starch introduction brought performance enhancement, consequently made SGO outperform either single starch or GO regarding adsorption efficiency. Specifically, SGO adsorbs 95.83% of Pb(II) in 16?min, with adsorption capacity 383.32?mg?g?1, manifesting some advantages over other analogous adsorbents, such as higher capacity and faster kinetics. The chemical interaction between Pb(OH)+ and C = O, C–O related groups in SGO supported the adsorption, which was a spontaneous, exothermic and entropy increasing process. The adsorption was well described by the Freundlich, pseudo-second-order model and intra-particle diffusion models, adsorption rate simultaneously controlled by intra-particle diffusion and chemical interaction. Based on its high adsorption efficiency, SGO may have promising application in heavy metal scavenging from water.

著录项

来源
《Journal of polymers and the environment》 |2022年第2期|569-584|共16页
作者
Ting Guo; Chaoke Bulin; Bangwen ZhangZeyu MaRuiguang XingXin GeYanghuan ZhangBo Li;
展开▼
作者单位

Inner Mongolia University of Science and Technology;

Inner Mongolia University of Science and Technology||Central Iron and Steel Research Institute;

Central Iron and Steel Research Institute;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
Starch-graphene oxide; Pb(II); Scavenging; Adsorption; Interaction mechanism;

A Highly Efficient Adsorbent Based on Starch-Graphene Oxide Architecture for Scavenging Aqueous Pb(II): Isotherms, Kinetics, Thermodynamics and Interaction Mechanism

摘要

著录项

相关主题

期刊订阅