华东理工大学化工学院,化学工程联合国家重点实验室,上海 200237
李姜无忌(1997—),男,硕士研究生,lijiangwuji_ecust@163.com
陈立芳(1975—),女,博士,副教授,lchen@ecust.edu.cn
收稿:2019-06-10,
修回:2019-09-18,
网络首发:2026-07-24,
纸质出版:2019-10-05
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李姜无忌, 朱巧影, 陈立芳, 成洪业, 漆志文. 氧缺陷位MoO3-x的制备及其吸附性能研究[J]. 化工学报, 2019, 70(10): 3956-3966 DOI: 10.11949/0438-1157.20190648.
LIJIANG Wuji, ZHU Qiaoying, CHEN Lifang, CHENG Hongye, QI Zhiwen. Preparation of oxygen defect vacancies MoO3-x and its adsorption properties[J]. CIESC Journal, 2019, 70(10): 3956-3966 DOI: 10.11949/0438-1157.20190648.
李姜无忌, 朱巧影, 陈立芳, 成洪业, 漆志文. 氧缺陷位MoO3-x的制备及其吸附性能研究[J]. 化工学报, 2019, 70(10): 3956-3966 DOI: 10.11949/0438-1157.20190648. DOI:
LIJIANG Wuji, ZHU Qiaoying, CHEN Lifang, CHENG Hongye, QI Zhiwen. Preparation of oxygen defect vacancies MoO3-x and its adsorption properties[J]. CIESC Journal, 2019, 70(10): 3956-3966 DOI: 10.11949/0438-1157.20190648. DOI:
纺织印染废水中的有机污染物如亚甲基蓝的高效吸附净化是环境领域的重要研究课题,三氧化钼独特的片层结构极具吸附应用潜力。通过微波一步法制备了不同氧空穴浓度的氧化钼,具有不同的表面电荷分布,利用氧空穴氧化钼表面所带负电荷选择性高效吸附阳离子偶氮染料亚甲基蓝。揭示了氧空穴浓度与吸附性能之间的关系,发现氧空穴浓度越高则氧化钼吸附速率越快;吸附过程符合Langmuir等温线模型和准二级动力学模型,表明该吸附过程属于单分子层吸附,并分析了其吸附机理。氧空穴氧化钼(MoO
3-
x
)为金属氧化物在染料吸附领域的发展和应用提供一定的基础数据和理论基础。
The high-efficiency adsorption purification of organic pollutants such as methylene blue in textile printing and dyeing wastewater is an important research topic in the environmental field. The unique lamellar structure of molybdenum oxides has great potential for adsorption application. Molybdenum oxides with different oxygen vacancies concentration were prepared by one-step microwave assisted hydrothermal method. The prepared molybdenum oxides with different negative surface charge distribution were applied to the efficient selective adsorption of organic pollutant cationic azo dye methylene blue. The relationship between oxygen vacancies concentration and adsorption performance was explored. It is found that molybdenum oxide with oxygen vacancies concentration is relative to its adsorption rate. The adsorption process conforms to Langmuir isotherm model and pseudo second order kinetic model
indicating that the adsorption process belongs to monomolecular adsorption. Therefore
it provides a potential for the development and application of metal oxides in the field of dye adsorption.
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