摘要
以Cu(NO_3)_2·3H_2O为铜源、NaH_2PO_4·2H_2O和NaOH为构晶离子和碱源,通过一步超声波辅助液相化学法制备了单分散分级结构的Cu_2(OH)PO_4微晶。用X-射线衍射(XRD)、场发射扫描电子显微镜(FESEM)、傅里叶变换红外光谱(FT-IR)和固体紫外-可见漫反射光谱(UV-vis DRS)对所制得Cu_2(OH)PO_4样品进行了结构与光学性质测试。结果表明:制备的Cu_2(OH)PO_4微晶呈准一维的梭形结构,由纳米棒组装而成,纳米棒长度为150～200 nm,直径约为50 nm;其能带约为1.82 eV,具有可见光激发性能。光催化降解实验表明,分级结构的Cu_2(OH)PO_4微晶具有较高的催化活性,可以高效地光催化降解废水中亚甲基蓝和罗丹明B有机染料污染物。
Using Cu(NO3)2·3H2O as copper source,NaH2PO4·2H2O and NaOH as configurational anion and alkaline reagent,monodispersed hierarchical copper-hydroxyphosphate(Cu2(OH)PO4)microcrystals have been successfully synthesized via an one-pot ultrasonic-assisted aqueous chemical route.The phase,morphology and optical property of as-prepared Cu2(OH)PO4 product are investigated by X-ray diffraction(XRD),field emission scanning microscopy(FESEM),Fourier Transform infrared spectroscopy(FT-IR)and UV-vis diffuse reflectance spectra(DRS).The as-synthesized quasi one dimension Cu2(OH)PO4 microcrystals with the lengths of 1.5~2.0μm are constructed by well-ordered nanorods,having 150~200 nm in length as well as 50 nm in diameter.The band gap energies were estimated to be 1.82 eV,suggesting the visible light response.Photocatalytic results demonstrate that Cu2(OH)PO4 microcrystals exhibit higher photocatalytic performance of efficient photocatalytic degradation of organic dyes such as methylene blue(MB)and rhodamine B(RhB)in wastewater.
作者
丁爱琴
余淼
郭玉洁
徐家怡
邓崇海
DING Aiqin;RU Miao;GUO Yujie;XU Jiayi;DENG Chonghai(Department of Chemical and Materials Engineering,Hefei University,Hefei 230601,China)
出处
《皖西学院学报》
2019年第2期55-59,共5页
Journal of West Anhui University
基金
2018年安徽省自然科学基金面上项目(1808085MB40)
大学生创新创业项目资助
关键词
羟基磷酸铜
超声化学
分级结构
纳米棒
光催化活性
copper-hydroxyphosphate
sonochemistry
hirearchical structure
nanorods
photocatalytic performance
