2019•ACTA PHOTONICA SINICARequires access

Preparation and Photocatalytic Properties of NiO/TiO2 Nanotubes by Hydrothermal Method

王竹梅 WANG Zhu-mei, 李月明 LI Yue-ming, Runhua Liao, 沈宗洋 SHEN Zong-yang, 左建林 ZUO Jian-lin

Abstract

采用水热法，制得了管径约为10~15 nm、管长约为10~300 nm、管壁上附着NiO纳米颗粒的TiO2纳米管复合光催化剂（NiO/TiO2）.采用X射线衍射、透射电子显微镜、扫描电镜、X射线光电子能谱及紫外-可见漫反射光谱等技术对催化剂进行了表征；以甲基橙为模拟污染物，评价了纳米管的光催化活性.结果表明：NiO晶粒与TiO2晶粒结合形成p-n异质结，有效地促进了光生电子和空穴的分离；NiO对可见光有强烈的吸收，使复合TiO2纳米管在整个可见光区域均有很好的光吸收；以上两点使NiO/TiO2纳米管可见光下的光催化活性大幅提升，500℃煅烧后纳米管对甲基橙1 h分解比由纯TiO2纳米管的7.0%提升至NiO/TiO2纳米管的95.6%.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Non-blocking I/O, Materials science, Photocatalysis, Hydrothermal circulation, Chemical engineering, Hydrothermal synthesis, Nanotechnology, Chemistry