Preparation and characterization of a self-dispersed and reactive TiO2/BiOBr photocatalyst for self-cleaning and ultraviolet resistant cotton fabrics. (31st August 2022)

• Record Type: Journal Article
• Authors: Wang, Kuang; Tian, Jialong; Yu, Wenhui; Lin, Ling; Qi, Zhenming; Wang, Chunxia
• Is Part Of: New journal of chemistry. Volume 46:Number 36(2022)
• Page Start: 17505
• Page End: 17516
• Publication Date: 2022-08-31
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj03910a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A novel and efficient approach is presented herein to develop self-cleaning and ultraviolet resistant cotton fabrics loaded with a self-dispersed and reactive TiO2 /BiOBr photocatalyst. Abstract : A novel and efficient approach is presented herein to develop self-cleaning and ultraviolet resistant cotton fabrics loaded with a self-dispersed and reactive TiO2 /BiOBr photocatalyst. TiO2 /BiOBr was synthesized by a facile hydrothermal method and characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) and photocatalytic activity. Amino-functionalized TiO2 /BiOBr was prepared through the reaction of 3-aminopropyltriethoxysilane with TiO2 /BiOBr and then reacted with sodium 2-(4-(4, 6-dichloro-1, 3, 5-triazine-2-ylamino)phenylsulfonyl)ethyl sulfate (SDTES) to obtain self-dispersed and reactive TiO2 /BiOBr. The chemical structure and dispersity of TiO2 /BiOBr, amino-functionalized TiO2 /BiOBr and self-dispersed and reactive TiO2 /BiOBr were revealed utilizing Fourier transform infrared spectroscopy (FTIR) and a zeta potential test. Cotton fabric was loaded with self-dispersed and reactive TiO2 /BiOBr by the dip dyeing method. XRD and SEM were employed to characterize the crystalline structure and surface morphology of cotton fabrics, respectively. In addition, the anti-ultraviolet, self-cleaning and wash fastness properties of cotton fabrics were studied. The photocatalytic test demonstrated that TiO2 /BiOBr has superior photocatalytic activity than TiO2 or BiOBr under simulated sunlight irradiation. In addition, the experimental results showed that self-dispersed and reactive TiO2 /BiOBr had commendable dispersity and storage stability. The cotton fabric loaded with self-dispersed and reactive TiO2 /BiOBr had exceptional anti-ultraviolet, self-cleaning and washing properties. The photocatalytic mechanism of self-dispersed and reactive TiO2 /BiOBr and its binding reactions with cotton fabric were proposed, which may provide a reference for broad application potential in functional textiles.