镍掺杂锆柱撑钛酸盐的制备、表征与光催化性能

第45卷第11期材料工程Vo1.45 No.n 2017 年11月第36 —41 页Journal of M aterials Engineering Nov. 2017 pp. 36 —41镍掺杂锆柱撑钛酸盐的制备、

表征与光催化性能

Preparation,Characterization and

Photocatalytic Activity of Nickel-doping

Hydroxyl-Zr Pillared Titanate

孙东亚u’3，何丽雯3，林碧洲3

(1厦门理工学院材料科学与工程学院，福建厦门361024;

2福建省功能材料及应用重点实验室，福建厦门361024;

3华侨大学材料科学与工程学院，福建厦门361021)

SUN Dong-ya1'2'3,H E Li-wen3,LIN Bi-zhou3

(1 College of Materials Science &，Engineering,Xiamen University

of Technology,Xiamen 361024,Fujian,China；2 Key Laboratory of

Functional Materials and Applications of Fujian Province,Xiamen

361024,Fujian,China；3 College of Materials Science &Engineering,

Huaqiao University,Xiamen 361021, Fujian,China)摘要：采用高温固相加水热合成方法制备出钛酸盐单分子层。掺镍的聚合羟基锆离子溶液与钛酸盐单分子层悬浮液共

混，通过剥离重堆积技术制得镍掺杂锆柱撑钛酸盐材料（NZPT)。用X射线衍射（XRD)、N2吸附分析、扫描/透射电镜 (SEM/HR-TEM)和紫外可见吸收光谱(UV-vis)对材料晶体结构、化学组成、微观形貌和孔结构等性质进行表征。以紫外-可见光催化降解酸性红G作为探针反应考察镍的掺人对Zr柱撑钛酸盐复合材料（ZPT)光催化活性的影响。结果表 明：掺镍柱撑材料的催化活性均高于未掺镍ZPT，其中，NZPT-0. 10呈现出最佳的催化活性，这与材料掺杂后形成的更 大比表面积以及主客体间的电子耦合有关。

关键词：柱撑材料；镍掺杂;介孔；剥离-重堆积；光催化

doi:10. 11868/j. issn. 1001-4381. 2016. 000243

中图分类号：0611. 5;0613. 51文献标识码：A 文章编号：1001-4381(2017)11-0036-06

Abstract ：A single layer of titanate was prepared by high temperature solid phase hydrothermal syn-thesis.To fabricate mesoporous nanocomposite-Ni-doped Zr-pillared titanate(N Z P T)，the exfoliated layered titanate in aqueous solution was reassembled in the presence of the hydroxyl-Zr oligocations and nickel cation by exfoliation-restacking technology.The crystal structure,chemical composition, microstructure and pore structure were characterized by powder X-ray diffraction,N2asbsorption analysis,scanning electron microscope/transmission electron microscopy and UV-vis spectra.The in-fluence of doping Ni cations on the catalytic activity of the Zr-pillared composites (ZPT)was investi-gated by the degradation of acid red G under ultraviolet and visible radiation.The results show that the Ni-containing pillared nanocomposite exhibits higher photocatalytic activities than that of ZPT without doping Ni cations,and the NZPT-0. 10 has the best photocatalytic activities of them,which are based on the bigger specific surface area and electronic coupling between the host and the guest species.

Key words ：pillared material；nickel-doped；mesoporous；exfoliation-restacking；photocatalytic

采用纳米材料，利用太阳光辐照对雾霾和污水进 光催化材料研究中具有代表性的材料[4^7]，然而由于行净化是光催化领域的研究热点之一[1^]。二氧化钛 受限于禁带宽度（3.20eV)，只能吸收太阳光中的紫外纳米材料由于其易得、光催化过程的绿色和高效成为 光。光催化反应主要应用于降解大气和水环境中的污