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A breathing A4 paper by in situ growth of green metal-organic frameworks for air freshening and cleaning
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作者 Bo Zhang Hongwen Chen +3 位作者 Liming Jiang Youqing Shen Dan Zhao Zhuxian Zhou 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2022年第12期95-102,共8页
Surface modification of natural cellulose fibers with nanomaterials is an effective strategy for producing functional textiles for multiple applications.A4-sized printing paper is a commonly used,cheap,and easily acqu... Surface modification of natural cellulose fibers with nanomaterials is an effective strategy for producing functional textiles for multiple applications.A4-sized printing paper is a commonly used,cheap,and easily acquirable office supply which is mainly made of cellulose fibers.Here,we report green and simple nanofabrication of A4 paper to endow it with high capability for fragrance encapsulation and sustained release,and strong adsorption to indoor air pollutants.The method utilizes the sugar molecule of cellulose for in-situ growth ofγ-cyclodextrin(γ-CD)metal-organic frameworks(MOFs)on A4 paper.The obtainedγ-CD-MOF/A4 nanocomposites have superior specific surface area and high porous structure.Theγ-CD-MOF/A4 nanocomposites can effectively encapsulate fragrant molecules through host-guest interaction.Theγ-CD-MOF/A4 nanocomposites also show strong absorption capability to formaldehyde and carbon dioxide through the formation of hydrogen bonding and chemical bonds.Theseγ-CD-MOF/A4nanocomposites combine the advantages of both A4 paper andγ-CD-MOF,which can be used in indoor air freshening and cleaning. 展开更多
关键词 Metal-organic frameworks a4 printing paper In situ synthesis Fragrance encapsulation Formaldehyde removal Carbon dioxide capture
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A4纸-8B铅笔-NiAg电极的制备及对H_2O_2电还原反应的催化性能 被引量:1
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作者 蔡庄 王贵领 +7 位作者 宋聪颖 杨雪莹 胡蓉 叶克 朱凯 程魁 闫俊 曹殿学 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2018年第5期1041-1047,共7页
通过电化学沉积和化学置换两种方法制备了一种新颖的、无黏合剂的石墨修饰A4纸负载镍银电极(Ni Ag@C/A),利用X射线衍射分析(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)等方法对电极的微观形貌和相组成进行了表征.通过循环伏安法(... 通过电化学沉积和化学置换两种方法制备了一种新颖的、无黏合剂的石墨修饰A4纸负载镍银电极(Ni Ag@C/A),利用X射线衍射分析(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)等方法对电极的微观形貌和相组成进行了表征.通过循环伏安法(CV)和计时电流法(CA)对电极对H_2O_2电还原的催化性能进行了测试.结果表明,在测试的浓度范围内,当Na OH浓度为1 mol/L,H_2O_2浓度为0.6 mol/L时,Ni Ag@C/A电极的催化性能最佳;在工作电压为-0.8 V的条件下,电极上H_2O_2还原反应的电流密度可达600 m A/cm^2,表现出良好的催化活性和稳定性. 展开更多
关键词 镍银 a4 石墨 过氧化氢 电还原
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标准数字化处理——以A3幅面扫描转化处理为A4幅面为例
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作者 施建 谢燕 张园园 《中国标准化》 2018年第A01期284-287,共4页
通过对扫描软件的深入实践与研究,本文总结出2种A3幅面扫描文件拆分为A4的处理方法。该方法简便,且对文本伤害小,具有重要意义。
关键词 文本扫描 A3转a4 标准数字化
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