摘要
甲醛(HCHO)具有释放周期长、毒性高、来源广泛、致癌等特点,如果处理不当将对人体健康造成极大的危害。活性炭高因其高孔隙率、大比表面积的特点和丰富的表面官能团、特殊的电子结构以及特有的耐酸耐碱等物理化学性质使其成了处理各类污染物的有效吸附剂,但对甲醛而言吸附效果较差。分析了活性炭吸附甲醛效果较差的原因,归纳整理了氧化改性、负载改性、酸碱改性和等离子体改性等化学改性方法,并总结了分子动力学、格子Boltzmann法、量子化学等模拟方法。为研究增强活性炭吸附总结了不同的研究思路和研究手段,也为甲醛净化的研究提供了有益的参考。
Formaldehyde(HCHO) has the characteristics of long release cycle, high toxicity, wide sources and carcinogenicity. If it is not handled properly, it will cause great harm to human health. Activated carbon has high porosity, large specific surface area, abundant surface functional groups, special electronic structure, and unique acid and alkali resistance, so it is an effective adsorbent for the treatment of various pollutants. But its adsorption effect is poor for formaldehyde. In this paper, the reasons for the poor effect of activated carbon in adsorbing formaldehyde were analyzed, chemical modification methods were summarized, such as oxidation modification, load modification, acid-base modification and plasma modification. And molecular dynamics, lattice Boltzmann method, quantum Chemistry and other simulation methods were summarized. Different research ideas and research methods for the study of enhancing the adsorption of activated carbon were also summarized to provide useful reference for the study of formaldehyde purification.
作者
安凯博
王忠华
武传燕
贾永英
马川
AN Kai-bo;WANG Zhong-hua;WU Chuan-yan;JIA Yong-ying;MA Chuan(School of Civil and Architectural Engineering,Northeast Petroleum University,Daqing 163000,China)
出处
《当代化工》
CAS
2021年第8期1952-1955,共4页
Contemporary Chemical Industry
基金
黑龙江省优秀青年基金项目(项目编号:YQ2019E008)
东北石油大学国家自然科学基金培育基金青年重点项目(项目编号:2018GPQZ-09)
东北石油大学省杰青后备人才项目(项目编号:SJQHB202003)。
关键词
活性炭
吸附法
甲醛
化学改性
模拟
Activated carbon
Adsorption method
Formaldehyde
Chemical modification
Simulation
