山竹皮吸附剂对铜离子的吸附行为及其燃烧特性研究  

Adsorption Behavior of Copper Ions onto Mangosteen Peel and Combustion Properties of Cu-Loaded Mangosteen Peel

作　　者：林玮 朱庆 黄凯[2] LIN Wei;ZHU Qing;HUANG Kai(Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学新材料技术研究院,北京100083 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《矿冶工程》2024年第1期116-120,共5页Mining and Metallurgical Engineering

基　　金：中央高校基本科研业务费资助项目(FRF-GF-18-025B)。

摘　　要：以山竹果皮渣为原料,经过异丙醇脱色、碱性试剂活化制备出吸附材料,用于吸附溶液中的铜离子。实验结果表明,pH值升高有利于山竹皮吸附剂吸附铜离子,最大吸附容量达1.5 molCu^(2+)/kg,且30 min内可达到吸附平衡。负载铜离子数量对吸附剂燃烧热分解的特征温度有显著影响,铜离子浓度低于2 mmol/L时,负载的铜离子数量增加,其开始热分解以及剧烈燃烧分解的温度点显著降低;铜离子浓度高于2 mmol/L后,其热分解温度特征值不再发生明显变化。铜离子在燃烧过程中扮演催化剂的作用,能有效促进燃烧反应。Acting as a raw material,mangosteen peel was subjected to decolorization with isopropanol and activation with alkaline reagent for preparing a kind of adsorbent,which was then used to adsorb copper ions in solution.The result from an adsorption experiment shows that increasing pH value can be beneficial to the adsorption of copper ions onto mangosteen peel,with the maximum adsorption capacity up to 1.5 molCu^(2+)/kg.The adsorption can reach equilibrium within 30 min.The amount of loaded copper ions has a significant effect on the characteristic temperature of thermal decomposition of adsorbents during combustion.When the concentration of copper ions is lower than 2 mmol/L,there are higher number of loaded copper ions,and the temperature at which thermal decomposition begins and violent combustion decomposition ends becomes lower.When the concentration of copper ion is higher than 2 mmol/L,the characteristic value of thermal decomposition temperature no longer changes significantly.Copper ion plays a role of catalyst in the combustion process,which can effectively promote the combustion reaction.

关 键 词：生物质吸附剂 重金属废水处理 山竹皮 吸附铜 热分解温度 燃烧点 催化反应 

分 类 号：X703[环境科学与工程—环境工程]