以生物质材料羊毛毡为前驱体,通过热解的方法一步制备了杂原子(N,O、S和P)掺杂碳材料,并用SEM、EDS和FTIR对其进行表征。同时,用该材料作为电Fenton阴极催化降解罗丹明B废水,并对影响电Fenton过程的重要因素如:溶液的初始pH值和Fe2+的浓度进行了优化。实验结果表明,该材料有很高的催化活性,在溶液的初始pH为3,Fe2+的浓度为0.5 mmol∙L−1时,用该催化剂作为电Fenton阴极降解50 mg∙L−1的罗丹明B溶液,降解时间为120分钟,罗丹明B的去除率可达到99.5%。由于该催化剂制备方法简单,成本低,催化活性高,稳定性好,在处理有机废水方面有很好的应用前景。 The heteroatoms (N, O, S and P) doped carbon material were prepared by a facile strategy through pyrolytic treatment of wool felt, and their properties were characterized by SEM, EDS and FTIR. Meanwhile, the material was used as electro-Fenton cathode for rhodamine B degradation. The effect of significant parameters including the initial pH and Fe2+ dosage on the removal efficiency was investigated for electro-Fenton process. It was indicated that initial Fe2+ concentration of 0.5 mmol∙L−1 at pH 3 were the optimum conditions for the removal of 50 mg∙L−1 RhB solution. The degradation time was 120 min, and the removal rate of rhodamine B was 99.5%. Because the catalyst has the advantages of simple preparation method, low cost, high catalytic activity and good stability, the catalyst has a good application prospect in the treatment of organic waste water.
肖 松,朱 凯,刘诗杰,阳瑜莹,屈钧娥,王海人. 多杂原子掺杂碳材料阴极催化降解罗丹明B Catalytic Degradation of Rhodamine B by Heteroatom Doped Carbon Material[J]. 化学工程与技术, 2018, 08(01): 27-36. http://dx.doi.org/10.12677/HJCET.2018.81005
参考文献 (References)References郑继东, 陆泉芳, 俞洁, 等. 辉光放电电解等离子体降解水体中的罗丹明B [J]. 环境科学学报, 2017, 37(6): 2164-2170.Tian, J., Olajuyin, A.M., Mu, T., et al. Efficient Degradation of Rhodamine B Using Modified Graphite Felt Gas Diffusion Electrode by Electro-Fenton Process. Environmental Science & Pollution Research, 23, 11574-11583.
<br>https://doi.org/10.1007/s11356-016-6360-7Hayeeye, F., Sattar, M., Chinpa, W., et al. (2016) Kinetics and Thermody-namics of Rhodamine B Adsorption by Gelatin/Activated Carbon Composite Beads. Colloids & Surfaces A Physicochemical & Engineering Aspects.Sun, H., Shang, Y., Xu, K., et al. (2017) MnO2 Aerogels for Highly Efficient Oxidative Degradation of Rhodamine B. Rsc Advances, 7. <br>https://doi.org/10.1039/C7RA04345GRay, S.K., Kshetri, Y.K., Dhakal, D., et al. (2017) Photocatalytic Degradation of Rhodamine B and Ibuprofen with Upconversion Luminescence in Ag-BaMoO4:Er 3+/Yb3+/K+, Microcrystals. Journal of Photochemistry & Photobiology A Chemistry, 339, 36-48. <br>https://doi.org/10.1016/j.jphotochem.2017.02.014孙金香, 王海增. 废弃Mg(OH)_2/AC焙烧产物对染料吸附性能研究[J]. 中国环境科学, 2014, 34(2): 390-395.Sundararajan, M., Sailaja, V., Kennedy, L.J., et al. (2016) Photocatalytic Degradation of Rhodamine B under Visible Light Using Nanostructured Zinc Doped Cobalt Ferrite: Kinetics and Mechanism. Ceramics International, 43, 540-548.
<br>https://doi.org/10.1016/j.ceramint.2016.09.191何洋洋, 唐素琴, 康婷婷, 等. 响应面法优化硫酸根自由基高级氧化深度处理渗滤液生化尾水[J]. 中国环境科学, 2015, 35(6): 1749-1755.宿程远, 李伟光, 黄智, 等. 蒽醌类物质经多相类芬顿预处理前后对活性污泥特性的影响[J]. 中国环境科学, 2015, 35(8): 2351-2359.Moreira, F.C., Rui, A.R.B., Brillas, E., et al. (2016) Electrochemical Advanced Oxidation Processes: A Review on Their Application to Synthetic and Real Wastewaters. Applied Catalysis B Environmental, 202, 217-261.
<br>https://doi.org/10.1016/j.apcatb.2016.08.037汤哲人, 陈泉源, 邓东升, 等. 以黄铜矿作为颗粒三维电极的电Fenton氧化处理维尼纶废水中的COD研究[J]. 中国环境科学, 2017, 37(1): 95-101.何盈盈, 孟建, 马亚利, 等. 宽pH条件下MnO/ACF复合阴极类电芬顿体系降解亚甲基蓝[J]. 化工学报, 2017, 68(1): 305-312.Guo, S., Yuan, N., Zhang, G., et al. (2016) Graphene Modified Iron Sludge Derived from Homogeneous Fenton Process as an Efficient Heterogeneous Fenton Catalyst for Degradation of Organic Pollutants. Microporous & Mesoporous Materials, 238, 62-68. <br>https://doi.org/10.1016/j.micromeso.2016.02.033Sharma, R. and Kar, K.K. (2015) Oxygen Reduction Reaction Activity of Nitrogen, Oxygen and Sulphur Containing Carbon Derived from Low-Temperature Pyrolysis of Poultry Featherfiber. Electrochimica Acta, 176, 1054-1064.
<br>https://doi.org/10.1016/j.electacta.2015.07.108Yuan, X., Wu, L., He, X., et al. (2017) Separator Modified with N, S Co-Doped Mesoporous Carbon using Egg Shell as Template for High Performance Lithium-Sulfur Batteries. Chemical Engineering Journal, 320, 178-188.
<br>https://doi.org/10.1016/j.cej.2017.03.022Wang, F., Liu, T., Guo, Y., et al. (2017) Co9S8 Activated N/S Co-Doped Carbon Tubes in Situ Grown on Carbon Nanofibers for Efficient Oxygen Reduction. Rsc Advances, 7, 34763-34769.Wu, J., Jin, C., Yang, Z., et al. (2015) Synthesis of Phosphorus-Doped Carbon Hollow Spheres as Efficient Metal-Free Electrocatalysts for Oxygen Reduction. Carbon, 82, 562-571. <br>https://doi.org/10.1016/j.carbon.2014.11.008Zhong, S., Zhou, L., Wu, L., et al. (2014) Nitrogen- and Boron-co-Doped Core-Shell Carbon Nanoparticles as Efficient Metal-Free Catalysts for Oxygen Reduction Reactions in Microbial Fuel Cells. Journal of Power Sources, 272, 344-350. <br>https://doi.org/10.1016/j.jpowsour.2014.08.114Wang, Y., Liu, Y., Liu, T., et al. (2014) Dimethyl Phthalate Degradation at Novel and Efficient Electro-Fenton Cathode. Applied Catalysis B Environmental, 156-157, 1-7.Sharma, R. and Kar, K.K. (2016) Effects of Surface Roughness and N-Content on Oxygen Reduction Reaction Activity for the Carbon-Based Catalyst Derived from Poultry Featherfiber. Electrochimica Acta, 191, 876-886.
<br>https://doi.org/10.1016/j.electacta.2016.01.166Zhu, J., Zhao, X., Xiao, M., et al. (2014) The Construction of Nitro-gen-Doped Graphitized Carbon-TiO2, Composite to Improve the Electrocatalyst for Methanol Oxidation. Carbon, 72, 114-124.
<br>https://doi.org/10.1016/j.carbon.2014.01.062Wang, H.G., Wang, Y., Li, Y., et al. (2015) Exceptional Electrochemical Performance of Nitrogen-Doped Porous Carbon for Lithium Storage. Carbon, 82, 116-123. <br>https://doi.org/10.1016/j.carbon.2014.10.041Zhao, Q., Wang, X., Xia, H., et al. (2015) Design, Preparation and Performance of Novel Three-Dimensional Hierarchically Porous Carbon for Supercapacitors. Electrochimica Acta, 173, 566-574.
<br>https://doi.org/10.1016/j.electacta.2015.05.096Zhuo, K., Sun, D., Xu, P., et al. (2017) Green Synthesis of Sulfur- and Nitrogen-co-Doped Carbon Dots using Ionic Liquid as a Precursor and Their Application in Hg2+, Detection. Journal of Luminescence, 187, 227-234.
<br>https://doi.org/10.1016/j.jlumin.2017.03.022丁炜, 张雪, 李莉, 等. 杂原子掺碳材料氧还原催化剂研究进展[J]. 电化学, 2014, 20(5): 426-438.