Development of Eggshell Waste Incorporated with a Porous Host as a Humidity Adsorption Material  

作　　者：BOONSOOK Kanokwan NAEMCHANTHARA Patcharin LIMSUWAN Pichet NAEMCHANTHARA Kittisakchai 

机构地区：[1]Department of Physics,Faculty of Science,King Mongkut’s University of Technology Thonburi,28 Bangkok 10140,Thailand [2]Department of Material and Process Engineering Technology,29 Faculty of Engineering and Technology,King Mongkut’s University of Technology North Bangkok,30 Rayong Campus,Rayong 21120,Thailand

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第5期974-983,共10页武汉理工大学学报（材料科学英文版）

基　　金：the research professional development project under the Science Achievement Scholarship of Thailand(SAST)for education financial support。

摘　　要：The duck eggshell waste was developed to the novel desiccant that is friendly to human and environment.The calcium oxide(Ca O)and calcium chloride(CaCl_(2))as the calcium-based desiccants were prepared from eggshell waste.The Ca O desiccant derived from the eggshell waste sintering at 1300℃,while the CaCl_(2)desiccant was extracted from eggshell waste with the hydrochloric(HCl)solution at difierent concentrations from 5 to 30 wt%.The yield percentage of CaCl_(2)desiccant increased with increasing the HCl concentration to 25 wt%.The humidity adsorption behavior were investigated in the range of 75%-5%relative humidity.The results show the CaCl_(2)desiccant has the highest hydration rate.The porous host from the kaolin was sintered at different temperatures from 200 to 1000℃and incorporated with 30%w/v concentrations of CaCl_(2).The physical properties and the humid-adsorption capacity of all porous host conditions were investigated.The porous host at sintering temperature 800℃has the highest specific surface area.Moreover,the porous host at sintering temperature 800℃with the 30%w/v concentration of CaCl_(2)desiccant has the highest humid-adsorption capacity.

关 键 词：Eggshell waste Calcium chloride DESICCANT KAOLIN Porous materials 

分 类 号：TQ1[化学工程]