【摘要】 采用原位合成法制备了纳米MnO_x负载纸,并对其甲醛去除性能进行了研究。纳米MnO_x负载纸的甲醛去除性能与纳米MnO_x颗粒的沉积率之间有一定的相关性。当KMnO₄浓度为0.1 mol/L、无水乙醇用量为60 m L、反应温度和反应时间为25℃和2 h时,可制备出甲醛去除性能最优的纳米MnO_x负载纸。扫描电子显微镜观察表明,纸浆纤维的表面沉积了纳米MnO_x颗粒。X射线光电子能谱仪（XPS）分析进一步揭示了锰氧化物的生成。纳米MnO_x负载纸对甲醛的去除以催化氧化为主、可见光催化氧化为辅。纳米MnO_x负载纸在无光条件下仍可对甲醛进行有效去除。更多还原

【Abstract】 Nano MnO_x-loaded paper was prepared via in situ synthesis process,and its performance for formaldehyde removal was studied.The performance for formaldehyde removal of nano MnO_x-loaded paper had some correlation with the deposition ratio of nano MnO_x particles.When the concentration of potassium permanganate（KMnO₄） was 0.1 mol/L,the volume of absolute ethanol was 60 m L,reaction temperature was 25 ℃ and reaction time was 2 h,the nano MnO_x-loaded paper with the optimal performance for formaldehyde removal could be prepared.SEM observation indicated that nano MnO_x particles were deposited on the surface of pulp fibers.The FTIR results showed that the in situ deposition of nano MnO_xparticles did not change the chemical structure of cellulose.The XPS analysis further revealed the generation of MnO_x.Formaldehyde was removed by the nano MnO_x-loaded paper mainly via catalytic oxidation and partly via visible light photocatalytic oxidation.Formaldehyde could be effectively removed by the nano MnO_x-loaded paper in dark environment.更多还原