Articles
  • Synthesis of in-situ encapsulated ZnSxSe1-x/ZrSiO4 composite as cool pigment on ceramic tiles for energy saving
  • Ti Zhanga,b, Yanmin Wanga,*, Shanjun Keb,* and Zhidong Pana

  • aSouth China University of Technology, Guangzhou 510640, China
    bFoshan Oceano Ceramics Co. Ltd., Foshan 528138, China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An in-situ encapsulated ZnSxSe1-x@ZrSiO4 composite as a cool pigment on ceramic tiles was synthesized via soft mechano-chemical (MC) pretreatment of ZrSiO4 precursors, high-shear homogeneous dispersing and subsequent sintering. The properties of ZnSxSe1-x@ZrSiO4 composite cool pigment and solar near-infrared (NIR) reflective ceramic tiles coated with the cool pigment were investigated by X-ray diffraction (XRD), Fourier transfer infrared spectroscopy (FTIR), thermogravimetry and differential scanning calorimetry (TG-DSC), scanning electron microscopy (SEM), ultraviolet-visible-near-infrared (UV-VIS-NIR) spectroscopy and infrared irradiation image analysis. The results show that compared to ceramic tiles uncoated (R* = 60.07%), solar NIR reflective ceramic tiles coated with ZnSxSe1-x@ZrSiO4 composite cool pigment have a higher solar reflectance (R* = 87.61%), indicating that the ceramic tiles coated with the cool pigment have a superior NIR reflectivity. The surface temperature of ceramic tiles coated with ZnSxSe1-x@ZrSiO4 composite is 7.2 oC lower than that of ceramic tile uncoated with the cool pigment. In addition, the energy saving of ceramic tiles coated the cool pigment can be achieved based on the energy simulation of solar NIR reflective ceramic tiles for ‘cool roof’ application in subtropical climate by a software named Design Builder 4.6.0.015


Keywords: Zircon in-situ encapsulated, ZnSxSe1-x cool pigment, Near-infrared reflectance, Solar NIR reflective ceramic tile, Energy savings, Emission reductions

This Article

  • 2022; 23(3): 326-334

    Published on Jun 30, 2022

  • 10.36410/jcpr.2022.23.3.326
  • Received on Dec 3, 2021
  • Revised on Feb 13, 2022
  • Accepted on Feb 14, 2022

Correspondence to

  • Yanmin Wang a, Shanjun Ke b
  • aSouth China University of Technology, Guangzhou 510640, China
    bFoshan Oceano Ceramics Co. Ltd., Foshan 528138, China
    Tel : +86 20 87114883 Fax: +86 20 87110273

  • E-mail: wangym@scut.edu.cn, sjkescut@163.com