化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (9) : 237-240.

开发与应用

太阳光活性Ce/Bi₂O₃生物质模板法制备及其光催化性能

^1,2,3

作者信息 +

Ce/Bi₂O₃ nanocomposite synthesized with bamboo straw as biological template and its photocatalytic performance in sunlight

Jian Shaoju^1,2,3, Wu Jinglin¹, He Minhui¹, Yang Weisen^1,2,3, Rao Ruiye^1,2,3

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文章历史 +

Received
2018-12-18
Issue Date	Revised Date
2019-10-10	2018-12-18

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摘要

以竹纤维为生物模板制备了太阳光活性的Ce掺杂Bi₂O₃催化剂。利用X射线衍射、热失重和扫描电子显微镜等方法对样品的形貌、结构和组成进行表征。以亚甲基蓝为目标污染物,探究了浸渍时间和Ce掺杂摩尔分数对Ce/Bi₂O₃在太阳光作用下光催化性能的影响。结果表明:Ce/Bi₂O₃保留了竹纤维的纤维形貌;浸渍2h制备的前驱物于马弗炉中600℃焙烧2h获得的含Ce摩尔分数为1.0%的Ce/Bi₂O₃复合材料,经太阳光照射450min后对100mL浓度为10mg/L的亚甲基蓝的降解率为87.14%,且催化剂的重复使用性良好。

Abstract

Ce-doped Bi₂O₃ nanocomposites were prepared using bamboo fiber as biological template.The morphologies,structures and components of the materials were characterized by diffraction analysis (XRD),thermogravimetric analysis (TG) and scanning electron microscope (SEM).The photocatalytic activity of Ce/Bi₂O₃ in sunlight was studied using methylene blue as the target pollutant,the effects of immersion time and doping amount on the photocatalytic performance of the nanocomposites were analyzed.The results shown that Ce/Bi₂O₃ retained the fiber morphology of bamboo fiber.The photocatalytic effect of Ce/Bi₂O₃ with 1.0% Ce addition prepared by calcined the precursors,which were immersed for 2h,at 600℃ for 2h in a muffle furnace was the best.The degradation rate of methylene blue dyes reached 87.14%,and the catalyst has good reusability.

关键词

生物模板 / 竹纤维 / Ce/Bi₂O₃ / 光催化 / 亚甲基蓝

Key words

bio-template / bamboo fiber / Ce/Bi₂O₃ / photocatalysis / methylene blue

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太阳光活性Ce/Bi₂O₃生物质模板法制备及其光催化性能[J]. 化工新型材料, 2019, 47(9): 237-240 DOI:

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