基于γ-C<sub>2</sub>S的蜂窝陶瓷常温制备与性能研究

doi:10.11896/cldb.24010136

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Abstract In the context of pollution abatement systems, the preparation of honeycomb ceramics, a pivotal constituent, conventionally necessitates elevated temperature conditions. This research introduces an innovative preparation methodology, proposing the utilization of γ-C₂S for the ambient temperature fabrication of honeycomb ceramics through a carbonation curing process, thereby obviating the need for high-temperature sintering. Employing γ-C₂S as the primary raw material and incorporating silica fume, water-reducing agents, plasticizers, and water, the plasticity of the raw mixture was meticulously controlled to attain superior mechanical properties in the honeycomb ceramics subsequent to carbonation curing. This study systematically examined the impact of thickening agent content and pre-drying protocols on the compressive strength of honeycomb ceramics. Concurrently, an in-depth analysis of the strength progression and microstructural alterations in honeycomb ceramics subjected to varying durations of carbonation was conducted. The outcomes reveal that an HPMC content of 2.5wt%, pre-drying the samples to a residual moisture content of 0.10, and 12 h of curing under 0.3 MPa CO₂ pressure yield a compressive strength of 46.8 MPa in the specimens. The genesis of aragonite-type calcium carbonate during carbonation serves to fill the pores, culminating in heightened material density. This phenomenon stands as the predominant factor contributing to the expeditious advancement of strength in the honeycomb ceramic samples. The monolithic honeycomb ceramic catalyst was made by doping 2.5wt% TiO₂, and the methyl orange degradation rate reached 45.12% after 80 min of photocatalysis.

Key words： γ-C₂S non-sintering honeycomb ceramics carbonation mechanical property TiO₂-supported

Published: 25 February 2025 Online: 2025-02-18

CLC number:

TU528

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	ZOU Jiawei
	LIU Zhichao
	WANG Fazhou

Cite this article:

ZOU Jiawei,LIU Zhichao,WANG Fazhou. Room Temperature Preparation of γ-C₂S-based Honeycomb Ceramics and Their Properties[J]. Materials Reports, 2025, 39(4): 24010136-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24010136 OR https://www.mater-rep.com/EN/Y2025/V39/I4/24010136

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