有机磁性纳米二氧化钛光催化剂的制备及光催化性能
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摘要
以4-氨基苯氧基邻苯二甲腈、二茂铁甲醛、联苯二酚为原料合成二茂铁有机磁体。通过钛酸四丁酯作为钛源,采用水热法将二氧化钛与二茂铁有机磁体进行复合,制备有机磁性纳米二氧化钛。利用X射线衍射仪、红外光谱、振动样品磁强计等一系列手段对样品进行表征,并研究了有机磁性纳米二氧化钛对亚甲基蓝的光催化降解活性。结果表明,当钛酸丁酯、乙醇和水的配比为1∶3∶10,反应温度为130℃,反应时间为4h时,有机磁性纳米二氧化钛的磁性以及催化效果最好,降解率可以达到79.4%。同时采用外加磁场对催化剂进行回收,在循环使用四次后,降解率不低于60%。
The ferrocene organic magnet is synthesized from 4-aminophenoxyphthalonitrile, ferrocene formaldehyde and biphenol. The organic magnetic nano-titanium dioxide is prepared by hydrothermally compounding the titanium dioxide with the ferrocene organic magnet with the tetrabutyl titanate as a titanium source. The samples are characterized by X-ray diffractometer, infrared spectroscopy and vibrating sample magnetometer. The photocatalytic degradation activity of organic magnetic nano-titanium dioxide for methylene blue is studied. The results show that when the ratio of butyl titanate to ethanol to water is 1∶3∶10 and the reaction temperature and time is 130°C and 4 h respectively, the magnetism and catalytic effect of organic magnetic nano-titanium dioxide is the best, and the degradation rate can reach 79.4%. And the catalyst can be recovered by using an external magnetic field, and the degradation rate is not less than 60% after recycling for 4 times.
The ferrocene organic magnet is synthesized from 4-aminophenoxyphthalonitrile, ferrocene formaldehyde and biphenol. The organic magnetic nano-titanium dioxide is prepared by hydrothermally compounding the titanium dioxide with the ferrocene organic magnet with the tetrabutyl titanate as a titanium source. The samples are characterized by X-ray diffractometer, infrared spectroscopy and vibrating sample magnetometer. The photocatalytic degradation activity of organic magnetic nano-titanium dioxide for methylene blue is studied. The results show that when the ratio of butyl titanate to ethanol to water is 1∶3∶10 and the reaction temperature and time is 130°C and 4 h respectively, the magnetism and catalytic effect of organic magnetic nano-titanium dioxide is the best, and the degradation rate can reach 79.4%. And the catalyst can be recovered by using an external magnetic field, and the degradation rate is not less than 60% after recycling for 4 times.
引文
[1]陈韶娟,马建伟.纳米二氧化钛复合抗菌剂的抗菌性及抗菌原理[C].第五届功能性纺织品及纳米技术应用研讨会论文集,2005.
[2] SCHULZ J, HOHENBERG H, PFL譈CKER F, et al. Distribution of sunscreens on skin[J]. Advanced Drug Delivery Review.2002,54(1):157~163.
[3]吕媛.双掺杂二氧化钛可见光催化剂的制备与性能研究[D].上海:华东师范大学,2008.
[4]易绍庭.基于二氧化钛微球复合光催化剂的制备及其光催化性能研究[D].南昌:南昌航空大学,2016.
[5] JING Y, BIE L J, YUAN Z H. Photoelectrochemical property of Zn Fe2O4/TiO2, double-layered films[J]. Materials Research Bulletin, 2007, 42(8):1402~1406.
[6] W FU, H YANG, L CHANG, et al. Anatase TiO2nanolayer coating on strontium ferrite nanoparticles for magnetic photocatalyst[J]. Materials Letters, 2005, 59(27):3530~3534.
[7] RANA S, SRIVASTAVA R S, SORENSSON M M, et al. Synthesis and characterization of nanoparticles with magnetic core and photocatalytic shell:Anatase TiO2-NiFe2O4, system[J]. Materials Science&Engineering B, 2005, 119(2):144~151.
[8] YE F, OHMORI A. The photocatalytic activity and photo-absorption of plasma sprayed TiO2-Fe3O4, binary oxide coatings[J].Surface&Coatings Technology, 2002, 160(1):62~67.
[9] WATSON S, BEYDOUN D, AMAL R. Synthesis of a novel magnetic photocatalyst by direct deposition of nanosized TiO2, crystals onto a magnetic core[J]. Journal of Photochemistry&Photobiology A Chemistry, 2002, 148(1):303~313.
[10]彭勃闻.浅谈有机高分子磁性材料的性质与应用[J].科技资讯,2016,14(35):117~119.
[11]刘爽,孙维林,何冰晶,等.有机磁体———新世纪的新材料[J].高分子通报,2004(4):1~9.
[12]于晓丽.含氮配体过渡金属配合物的合成、晶体结构及性质研究[D].大连:辽宁师范大学,2007.
[13] LAHTI P M. Magnetic properties of organic materials[M].New York:Marcel Dekker, 1999.
[14]徐磊杰.含双噻唑自组装膜和其金属配合物的制备及磁性能研究[D].杭州:浙江大学,2007.
[15]崔术新.金属钴配位聚合物基分子磁性材料的制备与性能研究[D].长春:东北师范大学,2006.
[16]高镰,郑珊,张青红,等.纳米氧化钛光催化材料及应用[M].北京:化学工业出版社,2002.
[17]张晶.纳米二氧化钛的水热制备及其光催化性能研究[D].北京:中国石油大学,2011.
[18]魏俊基.含二茂铁腈基聚合物及其电磁功能复合材料研究[D].成都:电子科技大学,2015.
[19]鄢程.二氧化钛纳米颗粒的水热法制备及工艺参数研究[D].广州:华南理工大学, 2002.
[2] SCHULZ J, HOHENBERG H, PFL譈CKER F, et al. Distribution of sunscreens on skin[J]. Advanced Drug Delivery Review.2002,54(1):157~163.
[3]吕媛.双掺杂二氧化钛可见光催化剂的制备与性能研究[D].上海:华东师范大学,2008.
[4]易绍庭.基于二氧化钛微球复合光催化剂的制备及其光催化性能研究[D].南昌:南昌航空大学,2016.
[5] JING Y, BIE L J, YUAN Z H. Photoelectrochemical property of Zn Fe2O4/TiO2, double-layered films[J]. Materials Research Bulletin, 2007, 42(8):1402~1406.
[6] W FU, H YANG, L CHANG, et al. Anatase TiO2nanolayer coating on strontium ferrite nanoparticles for magnetic photocatalyst[J]. Materials Letters, 2005, 59(27):3530~3534.
[7] RANA S, SRIVASTAVA R S, SORENSSON M M, et al. Synthesis and characterization of nanoparticles with magnetic core and photocatalytic shell:Anatase TiO2-NiFe2O4, system[J]. Materials Science&Engineering B, 2005, 119(2):144~151.
[8] YE F, OHMORI A. The photocatalytic activity and photo-absorption of plasma sprayed TiO2-Fe3O4, binary oxide coatings[J].Surface&Coatings Technology, 2002, 160(1):62~67.
[9] WATSON S, BEYDOUN D, AMAL R. Synthesis of a novel magnetic photocatalyst by direct deposition of nanosized TiO2, crystals onto a magnetic core[J]. Journal of Photochemistry&Photobiology A Chemistry, 2002, 148(1):303~313.
[10]彭勃闻.浅谈有机高分子磁性材料的性质与应用[J].科技资讯,2016,14(35):117~119.
[11]刘爽,孙维林,何冰晶,等.有机磁体———新世纪的新材料[J].高分子通报,2004(4):1~9.
[12]于晓丽.含氮配体过渡金属配合物的合成、晶体结构及性质研究[D].大连:辽宁师范大学,2007.
[13] LAHTI P M. Magnetic properties of organic materials[M].New York:Marcel Dekker, 1999.
[14]徐磊杰.含双噻唑自组装膜和其金属配合物的制备及磁性能研究[D].杭州:浙江大学,2007.
[15]崔术新.金属钴配位聚合物基分子磁性材料的制备与性能研究[D].长春:东北师范大学,2006.
[16]高镰,郑珊,张青红,等.纳米氧化钛光催化材料及应用[M].北京:化学工业出版社,2002.
[17]张晶.纳米二氧化钛的水热制备及其光催化性能研究[D].北京:中国石油大学,2011.
[18]魏俊基.含二茂铁腈基聚合物及其电磁功能复合材料研究[D].成都:电子科技大学,2015.
[19]鄢程.二氧化钛纳米颗粒的水热法制备及工艺参数研究[D].广州:华南理工大学, 2002.