硅酸盐通报2024，Vol.43Issue(1)：44-51,8.
负载S-g-C3N4/MgAl-CLDH光催化砂浆的去污及水化性能研究
Decontamination and Hydration Performance of Photocatalytic Mortar Loaded with S-g-C3N4/MgAl-CLDH
林淑瑾 1罗盛洋 2熊晓立2
作者信息
- 1. 福州市建设工程质量监督站,福州 350007
- 2. 福州大学土木工程学院,福州 350108
- 折叠
摘要
Abstract
In this study,a new type of photocatalytic composite material"sulfur-doped carbon nitride/calcined magnesium aluminum hydrotalcite(S-g-C3N4/MgAl-CLDH)"was synthesized and loaded on cement mortar through internal doping.The nitrogen oxide(NOx)degradation and hydration performance of photocatalytic mortar were tested.The results show that when the photocatalyst dosage is less than 5％(mass fraction),the S-g-C3N4/MgAl-CLDH content is directly proportional to the NOx degradation rate of mortar.When the photocatalyst dosage exceeds 5％,the NOx degradation performance of mortar begins to decrease due to agglomeration.In addition,due to the nucleation effect of nanomaterials,the incorporation of an appropriate amount of S-g-C3N4/MgAl-CLDH significantly improves the early(1 d)hydration degree of cement.However,due to its water absorption and agglomeration phenomenon,excess S-g-C3N4/MgAl-CLDH reduces the later hydration degree of cement.When the photocatalyst dosage is 7％,the 28 d strength of cement mortar significantly decreases compared with the control mortar.In addition,an appropriate amount of S-g-C3N4/MgAl-CLDH(3％)can improve 28 d strength of mortar due to its micro-filling effect.关键词
光催化砂浆/g-C3N4/MgAl-CLDH/氮氧化物降解/抗压强度/水泥水化Key words
photocatalytic mortar/g-C3N4/MgAl-CLDH/nitrogen oxide degradation/compressive strength/cement hydration分类
化学化工引用本文复制引用
林淑瑾,罗盛洋,熊晓立..负载S-g-C3N4/MgAl-CLDH光催化砂浆的去污及水化性能研究[J].硅酸盐通报,2024,43(1):44-51,8.
