煤炭清洁转化与化工过程自治区重点实验室新疆大学化工学院
纸质出版:2022
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[1]阿布力克木·阿布力孜.分级Cu-NiO复合材料的合成及其光催化CO_2还原性能研究[J].新疆大学学报(自然科学版)(中英文),2022,39(05):573-578.
[1]阿布力克木·阿布力孜.分级Cu-NiO复合材料的合成及其光催化CO_2还原性能研究[J].新疆大学学报(自然科学版)(中英文),2022,39(05):573-578. DOI: 10.13568/j.cnki.651094.651316.2021.09.22.0001.
DOI:10.13568/j.cnki.651094.651316.2021.09.22.0001.
采用简单的水热法合成了纳米片组装的分级NiO微球(NiO HMs),并利用煅烧法制备出掺杂不同比例Cu(1.5%、3%、4.5%)的Cu-NiO HMs复合材料,通过不同表征方法对其形貌结构进行分析.研究材料的可见光催化还原CO2的性能.结果表明Cu负载量的提高有利于材料的光吸收性能和催化稳定性.当掺杂量为4.5%时,复合材料表现出最佳的CO2还原活性,其CH_3OH的产率达到了585μmol/g cat
4 h.此外还探究了复合材料的CO2光催化还原机理.
The hierarchical NiO microspheres(NiO HMs) assembled from nanosheets were prepared by simple hydrothermal method
and the composite materials doped with diferent proportions of Cu(1.5%
3%
4.5%) were prepared by hydrothermal and calcination method. The structure and morphology of the composite materials were characterized
and the catalytic reduction of CO2 by simulated sunlight was studied. The results showed that the increase of Cu loading was beneficial to the photoabsorption and catalytic stability of the materials. When the doping content was 4.5%
the composite showed the best photocatalytic reduction ability of CO2. The yield of CH_3OH reached 585 μmol/g cat
4 h. In addition
the mechanism of photocatalytic reduction of CO2 was also analyzed.
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