The composite material formed by zeolitic imidazolate framework ZIF-67 and graphite phase carbon nitride (g-C3N4) has certain catalytic activity.The new composite ZIF-67/g-C3N4 was synthesized by adding cetyltrimethylammonium bromide (CTAB) to further improve its performance of activating persulfate (PMS) for degrading methylene blue (MB).The materials were characterized by FT-IR,SEM,XPS and BET.The results showed that the structure and morphology of ZIF-67/g-C3N4 was changed significantly compared with ZIF-67,and the most available pore size increased from 2.58nm to 4.17nm,and the binding energy of active sites was reduced by 0.32eV.The optimal conditions of the initial MB concentration of 20mg/L,the degradation temperature of 25℃,the composite material dosage of 0.1g/L,the PMS dosage of 0.3g/L and the initial pH value of 7,with a MB degradation rate of 99.20% after 10min.The degradation process conformed to the pseudo-first order kinetic model and the modified catalyst showed good stability.
[1] 欧杰丽,刘义青,唐钰琦等.羟胺强化Cu(Ⅱ)活化过氧乙酸降解有机染料的研究[J].中国环境科学,2024,44(10):5547-5555.
[2] 靳曜瑜.印染废水排放的影响及控制措施研究[J].造纸装备及材料,2023,52(12):7-9.
[3] 宫震,付田雨,孙好芬,等.高级氧化技术处理印染废水研究进展[J].湿法冶金,2022,41(4):283-288.
[4] Preeti K,Aditya K.A remediation technique for organic and non-biodegradable pollutant[J].Results in Surfaces and Interfaces,2023,11:100122.
[5] Ma D,Yang Y,Liu B,et al.Zero-valent iron and biochar composite with high specific surface area via K2FeO4 fabrication enhances sulfadiazine removal by persulfate activation[J].Chemical Engineering Journal,2021,408:127992.
[6] 杜蕊含,尚丹,蒋欣,等.水热法制备MnO2活化过硫酸盐降解水中的四环素[J].吉林大学学报(理学版),2023,61(3):707-716.
[7] 王晨曦.基于硫酸根自由基的不同高级氧化体系降解偶氮染料橙黄G的研究[D].广州:华南理工大学,2015.
[8] Deng X,Ke Y,Ding J,et al.Construction of ZnO@CDs@Co3O4 sandwich heterostructure with multi-interfacial electron-transfer toward enhanced photocatalytic CO2 reduction[J].Chinese Chemical Letters,2024,35(4):173-178.
[9] Yan D,Zhang L,Shen L,et al.Pd nanoparticles embedded in N-enriched MOF-derived architectures for efficient oxygen reduction reaction in alkaline media[J].Green Energy & Environment,2023,8(4):1205-1215.
[10] Ji F,Jiao D,Wang H,et al.Study on adsorption performance of Fe-modified ZIF-67 Bimetallic organic framework for toluene[C].Malaysia:Universiti Tun Hussein Onn Malaysia,2023.
[11] 申学建.谷胱甘肽/酶/ZIF-67杂化纳米催化剂的制备及其催化性能的研究[D].天津:天津科技大学,2022.
[12] 韩亚宏,郭元亨,吴祺路,等.催化剂ZIF-67的制备及合成D-阿洛酮糖的工艺优化[J].食品工业科技,2024,45(21):157-163.
[13] 王烨.冻干法合成高效率电子转移的C-ZIF-67@g-C3N4光催化材料[J].哈尔滨师范大学自然科学学报,2020,36(1):47-52.
[14] 周怀中,张佩琴,孙建富,等.ZIF-67衍生SA-Co/g-C3N4催化剂活化过一硫酸盐降解染料废水的研究[J].环境污染与防治,2022,44(10):1285-1290.
[15] 苏佩东,张俊珂,肖轲,等.单层ZIF67纳米颗粒修饰的C3N4在可见光下光催化降解有机污染物(英文)[J].催化学报,2020,41(12):1894-1905.
[16] 褚一威,靳凤先,马同宇,等.十六烷基三甲基溴化铵(CTAB)辅助水热法制备介孔Nb2O5及其光催化性能[J].环境化学,2024,43(10):3527-3537.
[17] 左国强,牛海云,刘改云,等.硫氰酸钾-十六烷基三甲基溴化铵-水体系浮选分离Fe3+[J].有色金属(选矿部分),2024(1):126-131,142.
[18] Wang C H,Wang H Y,Luo R,et al.Metal-organic framework one-dimensional fibers as efficient catalysts for activating peroxymonosulfate[J].Chemical Engineering Journal,2017,330:262-271.
[19] 吴璇,孙德栋,马红超,等.ZIF-67/g-C3N4复合催化剂活化过硫酸一氢盐降解亚甲基蓝[J].大连工业大学学报,2022,41(4):275-281.
[20] Biesinger C M,Payne P B,Grosvenor P A,et al.Resolving surface chemical states in XPS analysis of first row transition metals,oxides and hydroxides:Cr,Mn,Fe,Co and Ni[J].Applied Surface Science,2011,257(7):2717-2730.
[21] Guo W L,Su S N,Yi C L,etal.Degradationofantibiotics amoxicillin by Co3O,-catalyzed peroxym-onosulfate system[J].Environmental Progress & Sustainable Energy,2013,32(2):193-197.
[22] Wu Z L,Wang Y P,Xiong Z K,et al.Core-shell magnetic Fe3O@Zn/Co-ZIFs to activate per-oxymonosulfatefor highly efficient degradation ofcarbamazepine[J].Applied Catalysis B:Environ-Mental,2020,277:119136.
基金资助
国家自然科学基金面上资助项目(22372014);南京师范大学中北学院2021院级科研项目(2021yky007);南京师范大学中北学院“大学生创新创业训练计划”项目(202313906035Y)
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