详细信息
一种简单可控的Bi_2S_3@TiO_2(B)纳米异质体合成方法 被引量:1
A Facile and Controllable Method for Synthesizing Bi_2S_3@TiO_2(B) Nano-heterostructures
文献类型:期刊文献
中文题名:一种简单可控的Bi_2S_3@TiO_2(B)纳米异质体合成方法
英文题名:A Facile and Controllable Method for Synthesizing Bi_2S_3@TiO_2(B) Nano-heterostructures
第一作者:冉景榆
机构:[1]贵州理工学院化学工程学院;[2]贵州省特种功能材料2011协同创新中心;[3]中海油能源发展股份有限公司石化分公司;[4]贵州理工学院材料与冶金工程学院
第一机构:贵州理工学院化学工程学院
年份:2015
卷号:17
期号:5
起止页码:102-104
中文期刊名:遵义师范学院学报
外文期刊名:Journal of Zunyi Normal College
收录:国家哲学社会科学学术期刊数据库
基金:贵州省科学技术联合基金重点项目(黔科合LH字[2014]7357号);贵州省科学技术基金计划项目(黔科合J字[2014]2086号);贵州理工学院博士资助项目(XJGC20140604)
语种:中文
中文关键词:二氧化钛纳米线;硫化铋;声化学;光学性质
外文关键词:TiO2 nanowire; Bi2S3; sonochemistry; optical properties
摘要:介绍了一种利用声化学方法,通过改变前驱体的浓度来制备Bi2S3@TiO2(B)纳米异质体的方法。通过透射电子显微镜、XRD衍射、紫外-可见漫反射光谱等表征手段发现,Bi2S3纳米颗粒成功合成在TiO2(B)纳米线上,合成的产物可看做是Bi2S3@TiO2(B)纳米异质体。通过对Bi2S3(8%)@TiO2纳米异质体的(Ep)2和Ep作图发现,复合材料的带宽大约是1.64eV。这个结果说明,在可见光下,Bi2S3@TiO2(B)纳米异质体拥有较好的光催化性能,并且兼顾了Bi2S3和TiO2各自的优势,实验证实该材料是一种较好的光催化剂,在催化领域具有潜在的应用价值。
The controlled Bi2S3@Ti O2(B) nano-heterostructures with the precursors at different concentrations were synthesized by a sonochemical route. The morphology, crystal structure and optical property of the as-prepared Bi2S3@TiO 2(B) nano-heterostructures were characterized by TEM, XRD and UV–vis diffuse reflectance spectroscopy. The results revealed that Bi2S3nano-particles were successfully grown on the primary Ti O2 NWs. The hybrids had lengths of up to a few micrometers and had the extended absorption in the visible range. In particular, the band gap of the hybrid was 1.64 e V, which was lower than 3.2 e V of the Ti O2 in the anatase form. Due to the extended absorption in the visible range, the prepared Bi2S3@TiO 2(B) nano-heterostructures may possess high photocatalytic properties under visible light irradiation.
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