氟是关乎人体健康的必需元素之一,高氟或低氟的摄入都会严重危害人体健康。利用金属氧化物吸附除氟一直是环境领域研究的热点课题。简述了金属氧化物的除氟机理,综述了金属氧化物的改性方法,如掺杂改性、负载金属氧化物、复合化并归纳了改性金属氧化物的吸附机理,讨论了pH、共存离子、反应温度对改性金属氧化物除氟效果的影响。最后,展望了改性金属氧化物未来的发展趋势。
Fluorine is one of the essential elements for human health,and the intake of high or low fluorine can seriously jeopardize human health.Adsorption and removal of fluorine using metal oxides has been a hot topic in the environmental field.The mechanism of fluoride removal by metal oxides was briefly described,the modification methods of metal oxides,such as doping modification,loading metal oxides,composite,were reviewed,the adsorption mechanism of modified metal oxides was summarized,and the effects of pH,coexisting ions,and reaction temperature on the fluoride removal effect of modified metal oxides were discussed.Finally,the future development trend of the modified metal oxides was discussed.
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基金资助
安徽省自然科学基金(2208085US20);国家自然科学基金(52370001);安徽省高校协同创新项目(GXXT-2023-046);安徽省教育厅创新团队项目(2022AH010019)
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