Facile development and structural investigations of HAp and HAp/Ta nanostructures: Photocatalytic activity against Turq blue GL dye
Facile development and structural investigations of HAp and HAp/Ta nanostructures: Photocatalytic activity against Turq blue GL dye
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DOI：
10.1088/2053-1591/ab5cd0
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发表时间：
2019-12
影响因子：
2.3
通讯作者：
M. Manoj;D. Mangalaraj;Palaniappan Meena;Aihua Yuan
中科院分区：
文献类型：
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作者：
M. Manoj;D. Mangalaraj;Palaniappan Meena;Aihua Yuan
人们日益认识到生活系统需要一个健康的环境，这导致了对用于废水处理的合适催化剂材料的需求不断增加。在这方面，在本工作中，催化剂材料羟基磷灰石和羟基磷灰石/钽（HAp/Ta）核-壳纳米结构颗粒通过简单的纳米沉淀法在没有表面活性剂、螯合剂和/或配体的情况下制备。所制备的纳米结构的颗粒的特征在于与几个分析技术，即XRD，FESEM，TEM，EDS，FTIR，拉曼，XPS和BET的帮助。HAp的平均晶粒尺寸为26 nm，通过FESEM和TEM技术证实了核壳纳米棒的形态。平均长度和宽度分别为44和16 nm。通过N2吸附等温线法研究了其比表面积、微孔性和孔容。研究了制备的HAp和HAp/Ta核壳纳米粒子在紫外光照射下对常用工业染料Turq蓝GL的光催化活性。结果表明，HAp/Ta核壳纳米棒具有比纯HAp更高的催化活性，可作为纳米光催化剂用于工业废水处理过程，以抑制水污染和保护环境。
The rising awareness of the need for a healthy environment for living systems has led to an increasing demand for suitable catalyst materials for wastewater treatment. In this connection, in the present work, the catalyst materials Hydroxyapatite and Hydroxyapatite/Tantalum (HAp/Ta) core–shell nanostructured particles were prepared through a facile nanoprecipitation method without a surfactant, chelating agents and/or ligands. The prepared nanostructured particles were characterised with the help of several analytical techniques namely XRD, FESEM, TEM, EDS, FTIR, Raman, XPS and BET. The calculated average crystallite size of HAp was found to be 26 nm and the core–shell nanorod morphology was corroborated through FESEM and TEM technique. The average length and width were found to be 44 and 16 nm respectively. The specific surface area (SSA), microporous nature and pore volume were investigated through the N2 adsorption isotherm method. The photocatalytic activity of the prepared HAp and HAp/Ta core–shell nanostructured particles was investigated on frequently used dyeing industrial dyes Turq blue GL under UV irradiation. The recorded results evince that the HAp/Ta core–shell nanorods have more catalytic activity than pure HAp and can be used as a nanophotocatalyst for industrial waste water treatment process to curb water pollution and to protect the environment.