Reversible adsorption of metalworking fluids (MWFs) on Cu-BTC metal organic framework

doi:10.1016/j.cjche.2016.11.011

›› 2017, Vol. 25 ›› Issue (6): 768-774.DOI: 10.1016/j.cjche.2016.11.011

• Separation Science and Engineering • Previous Articles Next Articles

Reversible adsorption of metalworking fluids (MWFs) on Cu-BTC metal organic framework

Kwannapat Sorachoti^1,2, Bhuckchanya Pangkumhang³, Visanu Tanboonchuy³, Sarttrawut Tulaphol⁴, Nurak Grisdanurak^4,5

1. International Program in Hazardous Substance and Environmental Management, Graduate School, Chulalongkorn University, Bangkok, Thailand;
2. Center of Excellence on Hazardous Substance Management(HSM), Chulalongkorn University, Bangkok, Thailand;
3. Department of Environmental Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand;
4. Department of Chemical Engineering, Faculty of Engineering, Thammasat University, Pathumthani, Thailand;
5. Center of Excellence in Environmental Catalysis and Adsorption, Thammasat University, Pathumthani, Thailand

Received:2016-06-26 Revised:2016-11-23 Online:2017-08-02 Published:2017-06-28

Reversible adsorption of metalworking fluids (MWFs) on Cu-BTC metal organic framework

Kwannapat Sorachoti^1,2, Bhuckchanya Pangkumhang³, Visanu Tanboonchuy³, Sarttrawut Tulaphol⁴, Nurak Grisdanurak^4,5

1. International Program in Hazardous Substance and Environmental Management, Graduate School, Chulalongkorn University, Bangkok, Thailand;
2. Center of Excellence on Hazardous Substance Management(HSM), Chulalongkorn University, Bangkok, Thailand;
3. Department of Environmental Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand;
4. Department of Chemical Engineering, Faculty of Engineering, Thammasat University, Pathumthani, Thailand;
5. Center of Excellence in Environmental Catalysis and Adsorption, Thammasat University, Pathumthani, Thailand

通讯作者: Nurak Grisdanurak,E-mail address:gnurak@engr.tu.ac.th

Abstract

Abstract: Metalworking fluids (MWFs) are classified as hazardous substances. Due to the characteristics of the stable oil-water emulsions, it requires more costly and complicate treatment techniques to remove oil from spent MWFs. Metal organic frameworks (MOFs) are a porous network material used to remove contaminants from environment. One of the most prominent of MOFs is HKUST-1 or Cu-BTC. In this study, the Cu-BTCs were prepared by solvothermal method in various conditions and used as absorbent for removing oil micelles in MWF emulsion. The particle size of all synthesized Cu-BTCs ranged from ≈80 to 400 nm. The ability of all synthesized Cu-BTCs to remove oil micelle was greater than 95% in 60 min, while the capacity of GAC was obtained the result for only 6.8%. The maximum adsorption capacity (q_max) of oil micelles on Cu-BTCs was 1666.7 mg·g^-1. The highest removal capacity of oil micelles in MWF emulsion is greater than 99% in 24 h by using Cu-BTCs washed with either butanol or ethanol.

Key words: Metalworking fluids, Cutting fluids, Metal organic frameworks

摘要： Metalworking fluids (MWFs) are classified as hazardous substances. Due to the characteristics of the stable oil-water emulsions, it requires more costly and complicate treatment techniques to remove oil from spent MWFs. Metal organic frameworks (MOFs) are a porous network material used to remove contaminants from environment. One of the most prominent of MOFs is HKUST-1 or Cu-BTC. In this study, the Cu-BTCs were prepared by solvothermal method in various conditions and used as absorbent for removing oil micelles in MWF emulsion. The particle size of all synthesized Cu-BTCs ranged from ≈80 to 400 nm. The ability of all synthesized Cu-BTCs to remove oil micelle was greater than 95% in 60 min, while the capacity of GAC was obtained the result for only 6.8%. The maximum adsorption capacity (q_max) of oil micelles on Cu-BTCs was 1666.7 mg·g^-1. The highest removal capacity of oil micelles in MWF emulsion is greater than 99% in 24 h by using Cu-BTCs washed with either butanol or ethanol.

关键词: Metalworking fluids, Cutting fluids, Metal organic frameworks

Kwannapat Sorachoti, Bhuckchanya Pangkumhang, Visanu Tanboonchuy, Sarttrawut Tulaphol, Nurak Grisdanurak. Reversible adsorption of metalworking fluids (MWFs) on Cu-BTC metal organic framework[J]. , 2017, 25(6): 768-774.

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Reversible adsorption of metalworking fluids (MWFs) on Cu-BTC metal organic framework

Reversible adsorption of metalworking fluids (MWFs) on Cu-BTC metal organic framework

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