柚子皮吸附剂对甲醛的吸附性能研究  

The Adsorption Performance Study of Pomelo Peel as the Adsorbent for Formaldehyde

作　　者：陈莉[1] 布多[2] 崔小梅 昝亚玲[1] 李波 晋万军 熊晓明 Chen Li;Bu Duo;Cui Xiaomei;Zan Yaling;Li Bo;Jin Wanjun;Xiong Xiaoming(Department of Life Science,Yuncheng University,Yuncheng 044000,China;School of Ecology and Environment,Tibet University,Lhasa 850000,China;School of Chemical Engineering,Shanxi Institute of Science and Technology,Jincheng 048011,China)

机构地区：[1]运城学院生命科学系,山西运城044000 [2]西藏大学生态环境学院,西藏拉萨850000 [3]山西科技学院化学工程学院,山西晋城048011

出　　处：《中国野生植物资源》2024年第12期69-74,共6页Chinese Wild Plant Resources

基　　金：教育部人文社科规划基金项目(22YJA790006);山西省留学回国人员科技活动择优资助项目(20230046);山西省回国留学人员科研资助项目(2023-166)。

摘　　要：目的:探讨优化柚子皮作为生物吸附剂去除室内甲醛的潜力,评估其高效性与环保性,探索其作为绿色化学解决方案的可行性。方法:通过对废弃柚子皮进行皂化处理,并利用响应面分析法进一步优化吸附过程的条件。结果:确定了最佳优化工艺参数,氢氧化钠体积为75mL,乙醇体积为86.2mL,及氢氧化钠浓度为0.6mol/L。在最佳优化条件下得到的柚子皮吸附剂,甲醛理论吸附率达37.86%,实验验证为37.83%±1.52%,表明该模型具良好可靠性。与传统活性炭和硅藻土吸附材料相比,优化柚子皮显示出更优的吸附性能。电镜观察结果表明,柚子皮渣具较为疏松多孔的纤维网状结构,有助于提高吸附效率。傅里叶变换红外光谱分析揭示,在甲醛吸附过程中C≡C和C≡N键发挥重要作用。结论:经过优化处理的柚子皮不仅展现了出色的吸附性能,同时也符合绿色化学原则,为室内甲醛污染治理提供一种新的环保解决方案,为未来室内污染物的生物吸附提供了宝贵的参考依据,并促进了废物资源化和环境保护的进程。Objective:This study aims to investigate the potential of optimized pomelo peel as a bioadsorbent for removing indoor formaldehyde,assessing its efficiency,environmental friendliness,and feasibility as a green chemical solution.Methods:Discarded pomelo peels were saponified,and response surface methodology(RSM)was employed to optimize the adsorption process parameters.Results:The optimal process parameters were identified as 75 mL of sodium hydroxide,86.2 mL of ethanol,and a sodium hydroxide solution concentration of 0.6 mol/L.Under these conditions,the formaldehyde adsorption rate of the pomelo peel adsorbent reached 37.86%,with experimental validation at 37.83%±1.52%,demonstrating the reliability of the established model.Compared to traditional adsorbents such as activated carbon and diatomaceous earth,the optimized pomelo peel exhibited superior adsorption performance.Scanning electron microscopy(SEM)revealed a loose,porous fibrous network structure in the pomelo peel,contributing to enhanced adsorption efficiency.Fourier transform infrared spectroscopy(FTIR)analysis indicated that C≡C and C≡N bonds play critical roles in the formaldehyde adsorption process.Conclusion:Optimized pomelo peel not only exhibits excellent adsorption performance but also aligns with green chemistry principles,offering a novel,eco-friendly solution for indoor formaldehyde removal.This study provides valuable insights into the bioadsorption of indoor pollutants and advances waste resource utilization and environmental protection efforts.

关 键 词：甲醛 柚子皮 皂化处理 扫描电镜 傅里叶红外光谱 

分 类 号：X712[环境科学与工程—环境工程]