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.
作者
陈莉
布多
崔小梅
昝亚玲
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)
出处
《中国野生植物资源》
CSCD
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)。
