With the improvement of people's living standards,a large number of petroleum products,daily necessities and decorations that can produce volatile organic compounds are used in decoration,which seriously affects the indoor air quality.Interior decoration materials have be-come a research hotspot in recent years.The purpose of this paper is to develop a kind of interior wall material with good indoor formaldehyde removal effect,easily using,and low cost.In this paper,combining different heat treatment temperatures of the glaze layer,tourmaline/diat-omite-based interior wall tiles were prepared by ultrafine grinding,solid sintering,and low temperature calcination.The glaze layer under dif-ferent heat treatment temperatures was characterized by thermogravimetric-differential thermal analysis,X-ray diffraction,and scanning elec-tron microscope.The influences of heat treatment temperature on the microscopic morphology and structure of the glaze layer were analyzed.Taking formaldehyde as the target degradation product,the effects of tourmaline/diatomite-based interior wall tiles on the removal of formal-dehyde under different heat treatment temperatures of the glaze layer were investigated.The results showed that with the increase in heat treat-ment temperature,the original pores of diatomite decreased,the specific surface area decreased,and the structure of tourmaline changed.At 850℃,the surface structure of the material was slightly damaged,the strength was increased,and the removal effect of formaldehyde was bet-ter.In a 1 m3 environmental chamber,the formaldehyde removal rate reached 73.6％in 300 min.When the temperature was increased to 950℃and above,diatomite and the structure of tourmaline were destroyed,and the ability of the material to adsorb and degrade formaldehyde de-creased.

School of Environmental Science and Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China

[1]Ruqin Gao;Yingrui Huang;Enhui Wang;Xinmei Hou;Lu Pan;Guoting Li;Bingtao Liu-.Effect of heat treatment temperature of the glaze lager on the structure and the formaldehyde removal performance of an interior wall tile)[J].矿物冶金与材料学报,2022(11):2079-2085

diat,omite,diatomite

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