Abstract: In this work, an efficient heterogeneous catalyst was prepared through in-situ growth of ZIF-67 on carbonized melamine foam. The crystal structure, specific surface area and morphology of CMF/ZIF-67 were characterized by X-ray diffraction (XRD), nitrogen adsorption apparatus and scanning electron microscopy (SEM). Rhodamine B (RhB) degradation was employed as a model test for evaluating potassium peroxymonosulfate (PMS) activation. The results show that the CMF/ZIF-67 heterogeneous catalyst exhibites excellent efficiency for PMS activation, and the degradation rate of RhB is up to 98% in 30 min. The other factors which could influence PMS activation were also analyzed as well, for instance, catalyst dosage, PMS dosage, pH value, temperature and RhB concentration. The experimental results show that the degradation efficiency of RhB also increases with the increase of the dosage of CMF/ZIF-67 and PMS. The degradation rate of RhB can reach more than 98% in the initial pH range of 5—7. The effect of temperature on the degradation rate of RhB conforms to the Arrhenius model, and the degradation process is a surface reaction controlled process. The results of the free radical capture experiment show that the sulfate radicals are the dominant active species for RhB degradation. After four cycles, the degradation rate of RhB still maintains above 90% with CMF/ZIF-67 catalyst. The catalyst has potential application in the field of degradation of dye wastewater due to its excellent cycling stability.
1 Hethnawi A, Nassar N N, Manasrah A D, et al. Chemical Engineering Journal, 2017, 320, 389. 2 Ponnusamy S K, Sunita V, Subburaj S. Bioresource Technology, 2017, 250, 716. 3 Isik M, Sponza D T. Separation & Purification Technology, 2008, 60(1), 64. 4 Eichlerova I, Homolka L, Nerud F. Bioresource Technology, 2006, 97(16), 2153. 5 Do T M, Byun J Y, Kima S H. Catalysis Today, 2017, 295, 48. 6 Forgacs E, Cserhati T, Oros G. Environment International, 2004, 30(7), 953. 7 Li C X, Peng W, Fang Z D, et al. Materials Reports A: Review Papers, 2018, 32(7), 2223 (in Chinese). 李晨旭, 彭伟, 方振东, 等.材料导报:综述篇, 2018, 32(7), 2223. 8 Ghauch A, Tuqan A M. Chemical Engineering Journal, 2012, 183, 162. 9 Ahmed M M, Barbati S, Doumenq P, et al. Chemical Engineering Journal, 2012, 197, 440. 10 Moradi M, Ghanbari F, Tabrizi E M. Toxicological and Environmental Chemistry, 2015, 97(6), 700. 11 Yang S Y, Ping W, Yang X, et al. Journal of Hazardous Materials, 2010, 179, 552. 12 Qi C D, Liu X T, Ma J, et al. Chemosphere, 2016, 151, 280. 13 Hu P, Long M. Applied Catalysis B: Environmental, 2016, 181, 103. 14 Duan X G, Ao Z M, Li D G,et al. Carbon, 2016, 103, 404. 15 Anipsitakis G P, Dionysiou D D. Environmental Science & Technology, 2004, 38(13), 3705. 16 Zhang B T, Zhang Y, Teng Y G, et al. Critical Reviews in Environmental Science & Technology, 2015, 45(16), 1756. 17 Du Y, Ma W, Liu P,et al. Journal of Hazardous Materials, 2016, 308, 58. 18 Chen X Y, Chen J W, Qiao X L,et al. Applied Catalysis B: Environmental, 2008, 80, 116. 19 Shukla P R, Wang S, Sun H, et al. Applied Catalysis B: Environmental, 2010, 100(3-4), 529. 20 Li X H, Guo W L, Liu Z H,et al. Applied Surface Science, 2016, 369, 130. 21 Yang Y A, Peng F A, Xiao L A, et al. Inorganic Chemistry Communications, 2020, 122, 108282. 22 Hao B, Tang Y T, Li X F, et al. Materials Reports A: Review Papers, 2020, 34(6), 11035 (in Chinese). 郝博, 唐一桐, 李雪霏, 等. 材料导报:综述篇, 2020, 34(6), 11035. 23 Zhao C C, Wu G R. Chemical Industry and Engineering Progress, 2019, 38(4), 1775. 24 Küsgens P, Zgaverdea A, Fritz H G, et al. Journal of the American Ceramic Society, 2010, 93, 2476. 25 Furtado A M B, Liu J, Wang Y, et al. Journal of Materials Chemistry A, 2011, 21, 6698. 26 He S J, Chen W. Journal of Power Sources, 2014, 262, 391. 27 Zhang Y, Zhao H Y, Du Y P. Journal of Materials Chemistry A, 2016, 4(19), 7155 28 Wang Q W, Li Y, Shen Z L, et al. Applied Surface Science, 2019, 495, 143568 29 Rastogi A, Al-Abed S R, Dionysiou D D. Applied Catalysis B: Environmental, 2009, 85(3-4), 171. 30 Wang Y X, Duan X G, Sun H. Q, et al. Chemical Engineering Journal, 2015, 266, 12. 31 Yang Q J, Choi H, Dionysiou D D. Applied Catalysis B: Environmental, 2009, 88(3-4), 462. 32 Wu C H, Yun W C, Wi-Afedzi T, et al. Journal of Colloid and Interface Science, 2018, 514,262. 33 Anipsitakis G P, Dionysiou D D. Applied Catalysis B: Environmental, 2004, 54, 155. 34 Anipsitakis G P, Dionysiou D D, Gonzalez M A. Environmental Science & Technology, 2006, 40, 1000. 35 Sharma J, Mishra I M, Dionysiou D D,et al. Chemical Engineering Journal, 2015, 276, 193. 36 Ghanbari F, Moradi M. Chemical Engineering Journal, 2016, 310, 307. 37 Guan Y H, Ma J, Ren Y M, et al. Water Research, 2013, 47(14), 5431. 38 Fan Y, Ji Y, Zheng G, et al. Chemical Engineering Journal, 2017, 330, 831.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2022, Vol. 36 
