纺织学报 ›› 2022, Vol. 43 ›› Issue (02): 189-195.doi: 10.13475/j.fzxb.20211103907

• 染整与化学品 • 上一篇    下一篇

外电场极化银-钛酸钡/涤纶织物制备及其光催化性能

杨腾祥1, 申国栋1,2(), 钱利江2, 胡华军2, 毛雪1,3, 孙润军1,3   

  1. 1.西安工程大学 纺织科学与工程学院, 陕西 西安 710048
    2.浙江绍兴永利印染有限公司,浙江 绍兴 312073
    3.西安工程大学 智能纺织材料与制品国家重点实验室, 陕西 西安 710048
  • 收稿日期:2021-11-05 修回日期:2021-11-15 出版日期:2022-02-15 发布日期:2022-03-15
  • 通讯作者: 申国栋
  • 作者简介:杨腾祥(1998—),男,硕士生。主要研究方向为纳米光催化材料的合成、改性及光催化机制。
  • 基金资助:
    陕西省自然科学基础研究计划资助项目(2021JQ-681);中国纺织工业联合会科技指导性项目(2020002);陕西省教育厅专项科研计划项目(18JK0335)

External electric field polarized Ag-BaTiO3/polyester fabric and its photocatalytic properties

YANG Tengxiang1, SHEN Guodong1,2(), QIAN Lijiang2, HU Huajun2, MAO Xue1,3, SUN Runjun1,3   

  1. 1. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    2. Zhejiang Shaoxing Yongli Printing and Dyeing Co., Ltd., Shaoxing, Zhejiang 312073, China
    3. State Key Laboratory of Intelligent Textile Material and Products, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
  • Received:2021-11-05 Revised:2021-11-15 Published:2022-02-15 Online:2022-03-15
  • Contact: SHEN Guodong

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摘要：

为降低光生载流子的二次复合,提高粉体光催化剂降解印染废水后的可回收性,利用施加外电场极化与表面沉积贵金属改性法制备银-钛酸钡(Ag-BaTiO3)纳米粉体,以涤纶织物为基体制备涤纶基Ag-BaTiO3复合材料(Ag-BaTiO3/涤纶织物)。对材料的微观结构和形貌进行表征,以活性黄X-B染料为目标降解物,评价极化前后Ag-BaTiO3/涤纶织物的光催化性能。结果表明:Ag-BaTiO3纳米颗粒均匀沉积在涤纶织物表面,表面沉积贵金属Ag提高了BaTiO3的可见光吸收活性;经外加电场极化处理后,Ag-BaTiO3的剩余极化强度由1.61 μC/cm2增加至4.22 μC/cm2;Ag-BaTiO3/涤纶织物对目标染料的降解率由88.36%提升至99.36%。

关键词: Ag-BaTiO3, 粉体光催化剂, 外电场极化, 涤纶织物, 光催化性能

Abstract:

In order to reduce the secondary recombination of photon-generated charge carriers and improve the recyclability of powder photocatalysts after degrading dyeing and printing wastewater, Ag-BaTiO3 nano powder was prepared by applying external electric field polarization with surface deposition of precious metal. Polyester-based Ag-BaTiO3 composite materials (Ag-BaTiO3/polyester fabric) were prepared with polyester fabric as substrate, and the microstructure and morphology of composite materials were characterized. Meanwhile, the photocatalytic properties of Ag-BaTiO3/polyester fabric before and after polarization were evaluated reactive yellow X-B dye as degradation object. The results show that Ag-BaTiO3 nano particles are deposited evenly on the polyester fabric surface. The surface deposition of precious metal Ag improves the visible light absorption activity of BaTiO3. The residual polarization strength of Ag-BaTiO3 increases from 1.61 μC/cm2 to 4.22 μC/cm2, and the degradation ratio of Ag-BaTiO3/polyester fabric over the target dye increases from 88.36% to 99.36% by applying external electric field polarization treatment.

Key words: Ag-BaTiO3, power photocatalysts, external electric field polarization, polyester fabric, photocatalytic degradation

中图分类号: 

  • TS151

图1

BaTiO3、Ag-BaTiO3、涤纶织物、BaTiO3/涤纶织物和Ag-BaTiO3/涤纶织物的XRD图谱"

图2

BaTiO3、Ag-BaTiO3、涤纶织物和织物基复合光催化材料SEM和TEM图"

图3

BaTiO3和Ag-BaTiO3的XPS图谱"

图4

外加电场极化前后的电滞回线对比图"

图5

BaTiO3和Ag-BaTiO3的紫外-可见光漫反射吸收光谱图"

图6

粉体光催化剂和涤纶织物基复合光催化材料光降解活性黄X-B染料效果"

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