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采用天然染料提取液,添加碱和Ti O2制备复合光敏剂,利用紫外可见分光光度计(UV-Vis)测试天然染料的吸收曲线,筛选出吸收峰较大、吸光效果较强的天然染料光敏剂.对添加复合光敏剂的醋酸纤维薄膜进行光催化降解测试和差热-热重(DSC-TG)以及扫描电镜(SEM)的表征.结果表明:紫草、紫苏天然染料在可见光区域的吸收较好,且两者混合后,吸收峰线性叠加,吸光度增强;天然染料添加Na OH后,吸收峰增强并发生红移;将Ti O2加入紫草和紫苏的碱性提取液中,复合光敏剂对醋酸纤维薄膜的光催化降解效果进一步提高.
Abstract：A compound photosensitizer was prepared by adding alkali and TiO2 to the natural dyes extracted solution.Uv-vis spectrophotometer(UV-Vis) was used to test natural dyes absorption curve, and natural dyes photosensitizers with larger absorption peaks and stronger light absorption effects were selected. The cellulose acetate films added to the composite photosensitizer were used for photocatalytic degradation testing, differential thermo-thermal weight(DSC-TG) and characterization of scanning electron microscopy(SEM). The results showed that the natural dyes of Radix Arnebiae and Basil have good absorption in the visible region, and after the two kinds of natural dyes are mixed, the absorption peak is linearly superimposed and the absorbance enhanced. After Na OH is added to the natural dyes extracted solution, the absorption peaks enhanced and red shift occurrs. The photocatalytic degradation effect of compound photosensitizer on the cellulose acetate film is further improved by adding TiO2 to the alkaline extracted solution of Radix Arnebiae and Basil.
[1]梅洁,陈家楠,欧义芳.醋酸纤维素的现状与发展趋势[J].纤维素科学与技术,1999,7(4):56-62.
[2]陶美玲.新型合成纤维醋酸纤维的生产和应用[J].四川化工,2006,9(1):28-30.
[3]黄铁檩.醋酸纤维的生产工艺、研究进展及市场分析[J].河南化工,2010,27(13):20-23.
[4]郁魏魏.醋酯纤维生物降解研究[D].无锡:江南大学,2012.
[5]游天彪,谭英,唐青,等.二醋酸纤维素与聚乙二醇接枝共聚物的制备与表征[J].应用化学,2006,23(3):346-348.
[6]YAMASHITA Y,ENDO T.Biodegradation behavior of acidcontaining cellulose acetate film in soil[J].Journal of Applied Polymer Science,2005,98(1):466-473.
[7]朱青林.使用强碱及乌洛托品降解醋酸纤维丝束的比较研究[J].安徽农学通报,2006(13):50-51.
[8]FOX M A,DULAY M T.Heterogeneous photocatalysis[J].Chemical Reviews,1993,93(1):341-357.
[9]ISHIGAKI T,SUGANO W,IKE M,et al.Effect of UV irradiation on enzymatic degradation of cellulose acetate[J].Polymer Degradation and Stability,2002,78(3):505-510.
[10]GARCIA C G,POLO A S,IHA N Y M.Photoelectrochemical solar cell using extract of Eugenia jambolana Lam as a natural sensitizer[J].Anais da Academia Brasileira de Ciências,2003,75(2):163-165.
[11]苏刘花,杨存.一种紫苏精油微胶囊的制备方法及其在烟草中的应用:104178343A[P].2014-12-03.
[12]张华,李琳,王娟,等.紫苏的分步提取方法及所得提取物在卷烟中的应用:101602982[P].2009-12-16.
[13]徐萍.紫草中紫草素的提取及功能性研究[D].长春:长春工业大学,2010.
[14]纪俊玲,李海乐,席海涛,等.紫草天然染料的提取及其应用:101914305A[P].2010-12-15.
[15]邱百鸣.无尼古丁香烟-菜烟:101569437[P].2009-11-04.
[16]刘春波,李雪梅,王晓辉,等.一种能改善卷烟抽吸舒适性的滤嘴添加剂的制备方法及应用:106858715A[P].2017-06-20.
[17]杨进文,周新文,刘士新,等.紫苏烟培育的研究[J].山西农业科学,2007(12):74-75.
[18]陈森森.可生物降解的高聚物肥料包膜材料的制备和表征[D].合肥:合肥工业大学,2008.
[19]周慧芝.基于天然染料的光敏化太阳能电池的研究[D].大连:大连理工大学,2010.
[20]CALOGERO G,MARCO G D.Red Sicilian orange and purple eggplant fruits as natural sensitizers for dye-sensitized solar cells[J].Solar Energy Materials and Solar Cells,2008,92(11):1341-1346.
[21]LUO P H,NIU H J,ZHENG G,et al.From salmon pink to blue natural sensitizers for solar cells:Canna indica L.,Salvia splendens,cowberry and Solanum nigrum L[J].Spectrochimica Acta Part A:Molecular and Biomolecular Spectroscopy,2009,74(4):936-942.
[22]FURUKAWA S,LINO H,IWAMOTO T,et al.Characteristics of dye-sensitized solar cells using natural dye[J].Thin Solid Films,2009,518(2):526-529.
[23]王永忠.表面改性Ti O2光催化作用及对PVC塑料性能影响[D].杭州:浙江工业大学,2009.
[24]熊裕华.固相光催化降解聚乙烯塑料薄膜的研究[D].南昌:南昌大学,2005.
基本信息:
中图分类号:X703;O643.36
引用信息:
[1]史珺,吴扬,缪建文,等.天然染料混合二氧化钛光降解醋酸纤维的研究[J].南通大学学报(自然科学版),2018,17(02):15-19.
基金信息:
南通市应用研究项目(BK2014047)
2018-06-20
2018-06-20