CAJ | 학술논문

[目的]对生物质材料山核桃（Juglans mandshurica Maxim.）壳（CWS）对水中汞离子的吸附效果进行研究。[方法]利用山核桃壳作为生物吸附剂去除水溶液中Hg（Ⅱ）离子,探讨不同条件即溶液pH、吸附时间、Hg（Ⅱ）初始浓度对Hg（Ⅱ）离子吸附效率的影响。[结果]CWS对Hg（Ⅱ）离子吸附率最大时的pH范围为5.0～6.0;随着初始Hg（Ⅱ）浓度的增加吸附率逐渐减小;FTIR分析显示CWS的一些化学基团如羟基、甲基、芳香环甲氧基、羰基可能与吸附Hg（Ⅱ）离子有关;CWS对Hg（Ⅱ）离子的吸附过程与Langmuir和Frendrich吸附等温线相关性较高,从而拟合出吸附方程。[结论]山核桃壳可以作为一种很有前景的生物吸附剂来去除水中Hg（Ⅱ）离子。
[목적]대생물질재료산핵도（Juglans mandshurica Maxim.）각（CWS）대수중홍리자적흡부효과진행연구。[방법]이용산핵도각작위생물흡부제거제수용액중Hg（Ⅱ）리자,탐토불동조건즉용액pH、흡부시간、Hg（Ⅱ）초시농도대Hg（Ⅱ）리자흡부효솔적영향。[결과]CWS대Hg（Ⅱ）리자흡부솔최대시적pH범위위5.0～6.0;수착초시Hg（Ⅱ）농도적증가흡부솔축점감소;FTIR분석현시CWS적일사화학기단여간기、갑기、방향배갑양기、탄기가능여흡부Hg（Ⅱ）리자유관;CWS대Hg（Ⅱ）리자적흡부과정여Langmuir화Frendrich흡부등온선상관성교고,종이의합출흡부방정。[결론]산핵도각가이작위일충흔유전경적생물흡부제래거제수중Hg（Ⅱ）리자。
[Objective] The aim of the study was to make research on adsorption of Chinese walnut（Juglans mandshurica Maxim.） Shell（CWS） to Hg（Ⅱ） in water.[Method] Shells of Juglans mandshurica Maxim were used as biosorption to remove Hg（Ⅱ） in water solution to explore the influence to adsorption of Hg（Ⅱ） under different conditions,like pH solution,adsorption time,and Hg（Ⅱ）.[Result] The experimental results show that when absorptivity of Hg（Ⅱ） by CWS reached the highest,pH ranged within 5.0-6.0.The adsorptivity decreased as initial Hg（Ⅱ） concentrations increased.Fourier Transform Infrared Spectroscopy（FTIR） spectrum revealed some chemical groups of CWS may affect the adsorption of Hg（Ⅱ）,such as hydroxyl groups,methyl groups,aromatic methoxyl groups,unconjugated carbonyl,and typical aromatic ring,etc.Adsorption equation can be concluded considering the biosorption process relationship with Langmuir and Frendrich isotherm.[Conclusion] The study found that CW could be employed as a promising biosorption to remove Hg（Ⅱ） from aqueous environments.