陶瓷蜂窝净化材料的制备及吸附性能  

Preparation of honeycomb ceramics purification materials and their adsorption performance

作　　者：付琳 姬文晋[1] 何家俊 黄超强 李永峰[1,2] 窦永深 FU Lin;JI Wenjin;HE Jiajun;HUANG Chaoqiang;LI Yongfeng;DOU Yongshen(School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510006,China;Foshan Shunde Kinglei Environment&Technology Co.,Ltd.,Foshan 528308,China)

机构地区：[1]广东工业大学轻工化工学院,广东广州510006 [2]佛山市顺德区金磊环保科技有限公司,广东佛山528308

出　　处：《中国粉体技术》2024年第3期170-182,共13页China Powder Science and Technology

基　　金：国家自然科学基金项目,编号:22278086。

摘　　要：【目的】为了去除三甲胺异味污染物,分析不同改性方法对陶瓷蜂窝吸附净化三甲胺性能的影响。【方法】采用涂覆工艺,在陶瓷蜂窝基底上负载金属离子活性涂层制备整体式净化材料,以三甲胺的吸附容量作为净化评价指标,研究涂覆工艺参数优化和金属离子改性规律。【结果】陶瓷蜂窝净化材料的最优制备工艺条件为:胶黏剂类型为铝溶胶,添加的尿素浓度为0.9 mol/L,热处理温度为120~150℃,添加的金属离子为Ca^(2+)和Fe^(3+)、浓度为0.3 mol/L。用Ca^(2+)离子改性的陶瓷蜂窝净化材料三甲胺饱和吸附容量可达到368 mg/g,且在多次热再生后重复使用时净化性能保持不变;制备规模放大10倍后,所制得的陶瓷蜂窝材料也能保持三甲胺吸附净化性能。【结论】金属离子改性陶瓷蜂窝净化材料可有效去除三甲胺等异味污染物,具有饱和吸附量高、可多次重复使用等特点;净化材料制备规模放大后的净化性能保持重现性,具备规模化生产潜质。Objective Trimethylamine,a toxic,nitrogen-containing volatile organic compound,is widely recognized as an indoor odor pol⁃lutant,with its pungent odor significantly contributing to external air pollution.Microbiota can easily metabolize trimethylamine pollutants,leading to the formation of trimethylamine-n-oxide,which is closely linked to various cardiovascular diseases.There⁃fore,there is an urgent need to purify such odor pollutants for people's well-being.In this paper,the effects of different modifi⁃cation methods on the adsorption and purification performance of ceramic honeycomb purification materials for trimethylamine was thoroughly analyzed,ultimately aiming to achieve efficient purification of trimethylamine odor pollutants.Methods A coating technology was used to directly apply metal ion active coatings onto ceramic honeycomb substrates,forming integrated chemical purification materials.The process involved several steps:Firstly,the ceramic honeycomb substrate under⁃went pretreatment,including pickling,ultrasonic treatment,and high temperature calcination.Secondly,the pre-treated sub⁃strate was immersed into the mixed coating slurry containing aluminum sol,urea and metal ion salt for 10 h.Finally,the coating sample was extracted,residual slurry was purged,and then the sample was dried within a temperature range of 100 to 200℃for 10 h to obtain the monolithic ceramic honeycomb purification material modified with different metal ions.The static adsorption capacity of trimethylamine was employed as the evaluation index for the purification efficiency of odor pollutants.The optimiza⁃tion of coating process parameters,including adhesive type,concentration of added urea,thermal treatment temperature,and the modification of metal ions,was comprehensively examined,taking ino account different types and concentrations of metal ions.Results and Discussion The adsorption capability of the pure ceramic honeycomb substrate for trimethylamine was not promi⁃nent.However,upon modification with differen

关 键 词：净化材料 三甲胺 陶瓷蜂窝 涂覆工艺 

分 类 号：TB4[一般工业技术] TB332