海泡石-花球状BiOCl纳米复合材料的制备及其光催化性能

doi:10.11901/1005.3093.2014.452

材料研究学报

2015, Vol. 29

Issue (3): 178-184 DOI: 10.11901/1005.3093.2014.452

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海泡石-花球状BiOCl纳米复合材料的制备及其光催化性能

何明乙,张欢(

),戴亚堂,王伟,罗洪镁,王体龙,胡小平

西南科技大学材料科学与工程学院绵阳 621010

Preparation and Photocatalytic Activity of Sepiolite/Flower-Like BiOCl Nanocomposites

Mingyi HE,Huan ZHANG(

),Yatang DAI,Wei WANG,Hongmei LUO,Tilong WANG,Xiaoping HU

School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

引用本文:

何明乙,张欢,戴亚堂,王伟,罗洪镁,王体龙,胡小平. 海泡石-花球状BiOCl纳米复合材料的制备及其光催化性能[J]. 材料研究学报, 2015, 29(3): 178-184.
Mingyi HE, Huan ZHANG, Yatang DAI, Wei WANG, Hongmei LUO, Tilong WANG, Xiaoping HU. Preparation and Photocatalytic Activity of Sepiolite/Flower-Like BiOCl Nanocomposites[J]. Chinese Journal of Materials Research, 2015, 29(3): 178-184.

全文: PDF(6298 KB) HTML

摘要:

用水解沉淀法在海泡石上负载BiOCl制备出BiOCl-海泡石负载材料, 研究了温度、pH值和Bi(NO₃)₃用量对材料形貌的影响; 以罗丹明B为目标降解物, 探究了材料的光催化性能。结果表明, 控制温度、pH值和Bi(NO₃)₃用量能制备出花球状BiOCl的负载材料。BiOCl球由片状BiOCl组装而成, 并均匀分散在海泡石中; BiOCl球比纯BiOCl的光催化效果提高了14.29%-16.67%, 且具有优异的循环稳定性。

关键词 ：无机非金属材料, BiOCl, 海泡石, 光催化, 花球状

Abstract：

Sepiolite/flower-like BiOCl nanocomposites as photocatalyst have been successfully prepared by hydrolysis precipitation method. And the influence of temperature, pH and Bi(NO₃)₃ concentration on the unique morphology of the nanocomposites was investigated. Moreover, the photocatalytic activity of these nanocomposites was examined for the degradation of rhodamine B. The results show that the flower-like BiOCl is uniformly dispersed on the sepiolite and this nanocomposites exhibit a photocatalytic efficiency of 14.29%-16.67% higher than that of pure BiOCl nanosheets for the degradation of rhodamine B, and the catalyst has an excellent cycling stability.

Key words： inorganic nonmetallic materials BiOCl sepiolite photocatalysis flower-like

收稿日期: 2014-08-20

基金资助:* 国家自然科学基金51373140资助项目。

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	何明乙
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https://www.cjmr.org/CN/10.11901/1005.3093.2014.452 或 https://www.cjmr.org/CN/Y2015/V29/I3/178

图1 海泡石、BiOCl、海泡石-BiOCl的XRD图谱

图2 不同pH值条件下制备的海泡石-BiOCl的SEM像

图3 在不同温度下制备的海泡石-BiOCl的SEM像

图4 不同Bi(NO3)3量海泡石-BiOCl的SEM像

图5 BiOCl、海泡石与海泡石-BiOCl的SEM图谱

表1 罗丹明B溶液被光催化剂吸附后溶液的吸光度与浓度

图6 罗丹明B的降解过程

图7 罗丹明B被BiOCl和海泡石-BiOCl降解

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