Self-cleaning building materials: The multifaceted effects of titanium dioxide

被引：27

作者：

Paolini, Riccardo ^{[1
,2
]}

Borroni, Dario ^{[3
]}

Pedeferri, MariaPia ^{[3
]}

Diamanti, Maria Vittoria ^{[3
]}

机构：

[1] Politecn Milan, Dept Architecture Built Environm & Construct Engn, Milan, Italy

[2] Univ New South Wales, UNSW Built Environm, Sydney, NSW, Australia

[3] Politecn Milan, Dept Chem Mat & Chem Engn Giulio Natta, Via Mancinelli 7, I-20131 Milan, Italy

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 182卷

关键词：

Acid treatment; Photocatalysis; P25; Self-cleaning; Solar reflectance; TiO2; HETEROGENEOUS PHOTOCATALYSIS; TIO2; PHOTOCATALYSIS; LIGHT IRRADIATION; RHODAMINE-B; REFLECTANCE; DEGRADATION; PERFORMANCE; SURFACES; COATINGS; MORTARS;

D O I：

10.1016/j.conbuildmat.2018.06.047

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The physical integrity and photocatalytic performance of titanium dioxide (TiO2) deteriorate with aging. Here we propose a pre-treatment with nitric or sulfuric acid of commercial TiO2 nanopowders used in coating, mortars, or paints. The diffuse reflectance is increased between 1500 and 2500 nm by 0.04 and 0.06, respectively, with nitric and sulfuric acid (unaffected by neutralization). Nitric acid causes a decrease in crystallinity and photocatalytic activity, which drops by almost 20%; this drawback is prevented by post-treatment neutralization, which allows to recover initial photocatalytic efficiency and even increase it. Treatment with sulfuric acid shows no significant effect on photoactivity, instead. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：126 / 133

页数：8

共 50 条

[21] Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties
Wahyuningsih, Sayekti
Cahyono, Rochmad E.
Aini, Fitri N.
Ramelan, Ari H.
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, 2020, 15 (03): : 874 - 884
[22] Effect of plasma treatment on self-cleaning of textile fabric using titanium dioxide
Shahidi, Sheila
Ahmadi, Mohammad
Rashidi, Abosaeed
Ghoranneviss, Mahmood
MICRO & NANO LETTERS, 2015, 10 (08): : 408 - 413
[23] Amorphous titanium dioxide ultra-thin films for self-cleaning surfaces
Sabbah, Hussein
MATERIALS EXPRESS, 2013, 3 (02) : 171 - 175
[24] Ceramic insulators coated with titanium dioxide films: Properties and self-cleaning performance
Castano, Juan G.
Velilla, Esteban
Correa, Lorena
Gomez, Maryory
Echeverria, Felix
ELECTRIC POWER SYSTEMS RESEARCH, 2014, 116 : 182 - 186
[25] Nitrogen Plasma Treatment on Titanium Dioxide Films Applied in Self-cleaning Glass
Chang, Shang-Chou
Wang, Junlin
Chen, Wei
Lin, Cheng-Yi
Chan, Huang-Tian
2021 16TH INTERNATIONAL MICROSYSTEMS, PACKAGING, ASSEMBLY AND CIRCUITS TECHNOLOGY CONFERENCE (IMPACT), 2021, : 229 - 231
[26] Preparation of titanium dioxide nano particle modified photocatalytic self-cleaning concrete
Shen, Weiguo
Zhang, Chuang
Li, Qiu
Zhang, Wensheng
Cao, Liu
Ye, Jiayuan
Journal of Cleaner Production, 2015, 87 (01) : 762 - 765
[27] Effect of Polyethylene Glycol on Microstructure and Self-Cleaning Properties of Titanium Dioxide Films
Sun Xilian
Chen Penghui
Zhou Lang
Mujahid, Mohammad
ACTA OPTICA SINICA, 2018, 38 (01)
[28] Medical Textile Coated by Photocatalytic Titanium Dioxide Nanoparticles for Self-Cleaning Ability
Duy-Nam Phan
Nguyen Phuong Linh
Vu Thi Than Thuong
Minh-Thang Le
2023 1ST INTERNATIONAL CONFERENCE ON HEALTH SCIENCE AND TECHNOLOGY, ICHST 2023, 2023,
[29] Self-cleaning superhydrophobic surface based on titanium dioxide nanowires combined with polydimethylsiloxane
Zhang, Xia
Guo, Yonggang
Zhang, Zhijun
Zhang, Pingyu
APPLIED SURFACE SCIENCE, 2013, 284 : 319 - 323
[30] Preparation of titanium dioxide nano particle modified photocatalytic self-cleaning concrete
Shen, Weiguo
Zhang, Chuang
Li, Qiu
Zhang, Wensheng
Cao, Liu
Ye, Jiayuan
JOURNAL OF CLEANER PRODUCTION, 2015, 87 : 762 - 765

← 1 2 3 4 5 →