化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (7) : 221-225. DOI: 10.19817/j.cnki.issn1006-3536.2025.07.006

科学研究

实心球结构和核壳结构Ni₂P的合成及其吸附性能研究

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Synthesis and adsorption properties of solid sphere and core-shell structured Ni₂P

Lin Yang¹, Li Xiaojun^2,3, Yu Shuheng⁴, Wang Lina⁵, Chen Yuqiang^2,3, Hu Mingrui^2,3, Jiang Guoce^2,3

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Received		Published
2024-05-28		2025-07-20
Issue Date	Revised Date
2025-07-22	2024-05-28

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摘要

在十二烷基硫酸钠(SDS)单一表面活性剂体系和十二烷基硫酸钠(SDS)/十二烷基二甲基胺乙内酯(BS-12)复配表面活性剂体系作用下,通过溶剂热法合成了2种不同形貌的磷化二镍(Ni₂P),采用X射线粉末衍射仪、透射电子显微镜、能量色散谱仪等对产物的结构、形貌及元素组成进行了分析。结果表明:以SDS作为表面活性剂,得到的产物是实心球结构;以SDS/BS-12复配体系作为表面活性剂得到新颖、均匀的核壳球体结构;核壳结构Ni₂P由厚度为200nm的外壳和直径为750nm的内核组成,球体平均直径约为1.5μm。同时对核壳结构Ni₂P的形成机理进行了讨论。制备的实心球结构Ni₂P和核壳结构Ni₂P对有机染料孔雀石绿和刚果红吸附性能良好,在废水处理和环境保护方面具有潜在的应用价值。

Abstract

Two types of nickel phosphide (Ni₂P) with different morphologies were successfully synthesized via a solvothermal route in presence of sodium dodecyl sulfate (SDS) single surfactant and SDS/dodecyldimethylammonium ethylactone (BS-12) complex surfactant,respectively.The structure,morphology and elemental composition of the obtained products were characterized by X-ray Powder diffractometer (XRD),transmission electron microscope (TEM),and energy dispersive spectrometer (EDS).The results showed that the product obtained was solid sphere structure when SDS was employed.While a novel uniform core-shell spherical structure was obtained in presence of SDS/BS-12.The spheroid of the core-shell structure Ni₂P consisted of an outer shell with a thickness of 200nm and an inner core with an average diameter of 750nm,and the diameter was about 1.5μm.The possible formation mechanism of core-shell structure was discussed.In addition,the prepared solid spherical Ni₂P and core-shell Ni₂P possessed excellent adsorption capacity for (MG) and (CR) organic dyes,indicating their potential application value in wastewater treatment and environmental protection.

关键词

溶剂热法 / Ni₂P / 核壳结构 / 复配表面活性剂 / 吸附

Key words

solvothermal route / Ni₂P / core-shell structure / complex surfactant / adsorption

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实心球结构和核壳结构Ni₂P的合成及其吸附性能研究[J]. 化工新型材料, 2025, 53(7): 221-225 DOI:10.19817/j.cnki.issn1006-3536.2025.07.006

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