阴离子配比对Ni_(2)(CO_(3))(OH)_(2)臭氧分解性能的影响  

Effect of Anion Ratio on Ozone Decomposition of Ni_(2)(CO_(3))(OH)_(2)

作　　者：林玉 肖文艳 黎邦鑫 肖静祎 廖继飞 付艳[1] 张骞[1] LIN Yu;XIAO Wenyan;LI Bangxin;XIAO Jingyi;LIAO Jifei;FU Yan;ZHANG Qian(The Center of New Energy Materials and Technology,School of New Energy and Materials,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]西南石油大学新能源与材料学院,新能源材料及技术研究中心,成都610500

出　　处：《材料导报》2023年第S02期115-120,共6页Materials Reports

基　　金：四川省重大科技专项(2020ZDZX0008);四川省重大科技专项(22JBGS0001)。

摘　　要：为应对臭氧污染的传统催化材料大多在高湿度环境下存在降解性能与稳定性较差的问题,本研究通过水热法成功合成出高性能催化降解臭氧的盐酸改性碱式碳酸镍材料(NiCH-HCl),该催化剂可在90%相对湿度下稳定分解2.14μg/L臭氧12 h,去除率达80%左右。通过对材料进行石英晶体微天平(QCM)分析看出,相比纯相材料,NiCH-HCl表面对水分子吸附量明显减少,说明改性材料表面水分子吸脱附可逆;运用热重质谱联用手段发现,改性材料中CO_(3)^(2-)、OH^(-)的含量最少的NiCH-HCl 1 mL具有最佳的臭氧催化分解性能。结果表明,改变催化材料中的阴离子配比会对材料催化降解臭氧性能有影响,这为后续在高湿度环境下高活性臭氧催化分解材料的研究提供有效思路。Most of the traditional catalytic materials dealing with ozone pollution have poor degradation performance and stability in high⁃humidity environment.This study successfully synthesized high⁃performance hydrochloric acid modified basic nickel carbonate(NiCH)material for catalytic degradation of ozone through hydrothermal method,was successfully synthesized by hydrothermal method.The catalyst can stably decompose at 90%relative humidity 2.14μg/L ozone for 12 hours,with a removal rate of about 80%.Through quartz crystal microbalance(QCM)analysis of the material,it can be seen that the adsorption amount of water molecule on NiCH⁃HCl surface is significantly reduced,compared with that of pure phase material,and the surface water molecule adsorption and desorption are reversible.It is found by thermogravimetric mass spectrometry that NiCH⁃HCl 1 mL with the lowest content of CO_(3)^(2-)and OH^(-)had the best ozone⁃catalyzed decomposition performance.This study shows that changing the ratio of anions in the catalytic material can indeed have an impact on the catalytic performance of the material,which provides an effective method for the subsequent study of ozone catalytic decomposition materials with high activity in high⁃humidity environment.

关 键 词：臭氧污染 镍基催化材料 碱式碳酸镍 材料改性 

分 类 号：X511[环境科学与工程—环境工程]