氧化锌/硅藻土复合材料光催化性能研究
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摘要
通过直接沉淀法制备氧化锌(ZnO)及氧化锌/硅藻土复合材料。通过扫描电镜看出,制备了形貌良好的纳米氧化锌;通过红外光谱看出,出现了氧化锌的吸收峰.硅藻土含量为60%,烧结温度为300℃时,氧化锌/硅藻土复合材料对亚甲基蓝的光催化降解效果最好。经过改性后的氧化锌/硅藻土复合材料光催化效果更好,稳定性得到了提高,重复使用不影响光催化效率。
Preparation of ZnO/diatomite composite material,testing its photocatalytic properties.Prepared by direct precipitation ZnO and ZnO/diatomite composite material,Characterization of the composite material,to analysis photocatalytic activity of the composite material that degrades of methylene blue solution.Demonstrated by scanning electron microscopy(SEM),zinc oxide with good morphology were prepared;demonstrated by FTIR,appeared the absorption peak of ZnO.When diatomite with content of 60% and the sintering temperature of 300 ℃,ZnO/diatomite composite material have the best absorption effecting on UV.By direct precipitation method for preparing good morphology ZnO and ZnO/diatomite composite material.The photodegradation efficiency of Composite photocatalyst that modified by diatomite is improved.
Preparation of ZnO/diatomite composite material,testing its photocatalytic properties.Prepared by direct precipitation ZnO and ZnO/diatomite composite material,Characterization of the composite material,to analysis photocatalytic activity of the composite material that degrades of methylene blue solution.Demonstrated by scanning electron microscopy(SEM),zinc oxide with good morphology were prepared;demonstrated by FTIR,appeared the absorption peak of ZnO.When diatomite with content of 60% and the sintering temperature of 300 ℃,ZnO/diatomite composite material have the best absorption effecting on UV.By direct precipitation method for preparing good morphology ZnO and ZnO/diatomite composite material.The photodegradation efficiency of Composite photocatalyst that modified by diatomite is improved.
引文
[1] 崔玉民,韩金霞.光催化降解水中有机污染物研究现状与展望[J].燃料化学学报,2004(1):123-128.
[2]闫世成,罗文俊,李朝升,等.新型光催化材料探索和研究进展[J].中国材料进展,2010(1):1-9,53.
[3]李敦钫,郑菁,陈新益,等.光催化分解水体系和材料研究[J].化学进展,2007(4):464-477.
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[5]任秋红,龚建宇.电沉积 ZnO膜光电催化降解4-硝基酚研究[J].环境科学与技术,2010,33(5):43-46.
[6]李亚峰,赵艳红,陈平,等.负载型TiO2光催化剂的制备及光催化活性研究[J].沈阳建筑大学学报(自然科学版),2008(1):123-128.
[7]孙冲,林俊雄,汪澜.硅藻土负载TiO2的制备及对染料的吸附降解性能[J].浙江理工大学学报,2010(1):36-40.
[8]Jang Min,Min Soo-hong,Park Jae Kwang,et al.Hydrous ferric oxide incorporated diatomite for remediation of arsenic contaminated groundwater[J].Environmental Science & Technology,2007,41:3322-3328.
[2]闫世成,罗文俊,李朝升,等.新型光催化材料探索和研究进展[J].中国材料进展,2010(1):1-9,53.
[3]李敦钫,郑菁,陈新益,等.光催化分解水体系和材料研究[J].化学进展,2007(4):464-477.
[4]尹荔松,沈辉.二氧化钛光催化研究进展及应用[J].材料导报,2000(12):23-25.
[5]任秋红,龚建宇.电沉积 ZnO膜光电催化降解4-硝基酚研究[J].环境科学与技术,2010,33(5):43-46.
[6]李亚峰,赵艳红,陈平,等.负载型TiO2光催化剂的制备及光催化活性研究[J].沈阳建筑大学学报(自然科学版),2008(1):123-128.
[7]孙冲,林俊雄,汪澜.硅藻土负载TiO2的制备及对染料的吸附降解性能[J].浙江理工大学学报,2010(1):36-40.
[8]Jang Min,Min Soo-hong,Park Jae Kwang,et al.Hydrous ferric oxide incorporated diatomite for remediation of arsenic contaminated groundwater[J].Environmental Science & Technology,2007,41:3322-3328.