S-Fe改性生物炭的制备及其活化过硫酸盐优化去除磺胺甲噁唑
Preparation of Biochar Loaded Sulfur-Modified Iron Oxide and Optimal Removal of Sulfamethoxazole by Persulfate Activation
摘要: 为探讨硫改性氧化铁(S-Fe)生物炭制备及其活化过硫酸盐(PS)时去除抗生素的影响因素，采用限氧热解法和化学沉淀法将S-Fe负载于花生壳生物炭(硫铁生物炭)，并通过XRD和SEM进行表征，证明了S-Fe化合物的成功负载。随着生物炭制备温度的变化，在400℃热解条件下的硫铁生物炭对磺胺甲噁唑的去除效果最佳。运用三因素三水平响应面优化法，磺胺甲噁唑的去除率随着硫铁生物炭投加量和PS添加量的增加而增加，且PS添加量对其影响最大。去除率最大时的条件为硫铁生物炭投加量1.5 mg·mL−1，PS添加量0.97 mg·mL−1和pH值5。因此，响应面法可成功用于优化磺胺类抗生素溶液去除的最佳条件。
Abstract: In order to explore the influence of the factors on antibiotic removal when using the S-Fe biochar activated the persulfate (PS). Sulfur modified iron oxide was loaded on peanut shell biochar by limited oxygen pyrolysis and chemical precipitation. Characterization by XRD and SEM proved the successful loading of pyrite compounds. It can be concluded that the removal efficiency of sulfamethoxazole is the best with 400˚C, through the effect of biochar pyrolysis temperature on persulfate (PS) activation. With the increase of the pyrite biochar dosage and PS addition, the removal efficiency of sulfamethoxazole increased and PS addition played the most significance. When the dosage of pyrite biochar was 1.5 mg·mL−1, the dosage of PS was 0.97 mg·mL−1 and the pH value was 5, the removal efficiency could obtain the maximum value. Therefore, the response surface method can be successfully applied to optimize the optimal conditions of sulfonamide antibiotic solution removal.
文章引用：汤梓琪, 严丽丽, 李俊, 杨洁, 刘杨阳, 胡婷莛, 郭锐税, 郭鑫. S-Fe改性生物炭的制备及其活化过硫酸盐优化去除磺胺甲噁唑[J]. 环境保护前沿, 2020, 10(2): 259-268. https://doi.org/10.12677/AEP.2020.102030

参考文献

[1] Vieno, N.M., Härkki, H., Tuhkanen, T., et al. (2007) Occurrence of Pharmaceuticals in River Water and Their Elimination in a Pilot-Scale Drinking Water Treatment Plant. Environmental Science & Technology, 41, 5077-5084. [Google Scholar] [CrossRef] [PubMed]
[2] Smernik, R.J. (2009) Biochar and Sorption of Organic Compounds. In: Lehmann, J. and Joseph, S., Eds., Biochar for Environmental Management: Science and Technology, Earthscan, London, 289-230.
[3] 张江, 孙宁宁, 张景环, 等. 改性石墨烯–生物炭复合材料对磺胺类抗生素的吸附[J]. 山东化工, 2017, 46(23): 39, 46.
[4] 王开峰, 彭娜, 吴礼滨, 等. 水稻秸秆生物炭对磺胺类抗生素的吸附研究[J]. 环境科学与技术, 2017, 40(9): 61-67.
[5] Klüpfel, L., Keiluweit, M., Kleber, M., et al. (2014) Redox Properties of Plant Biomass-Derived Black Carbon (Biochar). Environmental Science & Technology, 48, 5601-5611. [Google Scholar] [CrossRef] [PubMed]
[6] 王艳, 李春花, 龚畏, 等. Fe/生物炭活化过硫酸盐降解偶氮染料金橙Ⅱ[J]. 应用化工, 2017, 46(12): 2328-2330.
[7] Fang, G., Liu, C., Gao, J., et al. (2015) Manipulation of Persistent Free Radicals in Biochar to Activate Persulfate for Contaminant Degradation. Environmental Science & Technology, 49, 5645-5653. [Google Scholar] [CrossRef] [PubMed]
[8] Fang, G., Gao, J., Liu, C., et al. (2014) Key Role of Persistent Free Radicals in Hydrogen Peroxide Activation by Biochar: Implications to Organic Contaminant Degradation. Environmental Science & Technology, 48, 1902-1910. [Google Scholar] [CrossRef] [PubMed]
[9] Yan, L.L., Kong, L., Qu, Z., et al. (2014) Magnetic Biochar Decorated with ZnS Nanocrytals for Pb(II) Removal. ACS Sustainable Chemistry Engineering, 3, 125-132. [Google Scholar] [CrossRef] 
[10] 梁宇坤. 生物炭负载纳米零价铁镍激活过硫酸盐降解诺氟沙星废水[D]: [硕士学位论文]. 太原: 太原理工大学, 2019.
[11] 李瑞祥. 微藻生物炭活化过硫酸盐高效去除水中磺胺甲噁唑的研究[D]: [硕士学位论文]. 哈尔滨: 哈尔滨工业大学, 2019.
[12] Xie, G., Xi, P., Liu, H., et al. (2012) A Facile Chemical Method to Produce Superparamagnetic Graphene Oxide-Fe3O4 Hybrid Composite and Its Application in the Removal of Dyes from Aqueous Solution. Journal of Materials Chemistry, 22, 1033-1039. [Google Scholar] [CrossRef] 
[13] 李长欣, 吕严凤, 张梦迪, 等. 热解条件对茶叶渣生物炭特性及镉污染土壤钝化效果的影响[J]. 环境工程学报, 2017, 11(12): 6504-6510.
[14] 胡静, 孙君社, 谭晓妍, 等. 响应面法优化柠檬酸去除香菇中镉工艺[J]. 食品科学, 2017, 38(14): 181-186.
[15] 李美玲, 田瑜, 李赛, 等. 响应面法优化绿色合成纳米零价铁去除水中Cr(VI)的条件及其动力学研究[J]. 中国农村水利水电, 2018(8): 113-122.
[16] 赵涛, 蒋成爱, 丘锦荣, 等. 皇竹草生物炭对水中磺胺类抗生素吸附性能研究[J]. 水处理技术, 2017, 43(4): 56-65.