4. Conclusion
In summary, MIL-100(Fe) exhibited excellent demulsification performance for the model emulsion. The MIL-100(Fe) preferred to demulsify at acid and hyperhaline conditions. The amphipathicity micro-domain of MIL-100(Fe) was important for demulsification. MIL-100(Fe) degraded the SDS by abstracting the hydrophilic group of SDS. This degradation for surfactant could erase the potential risk of emulsifying again. At the practical occasion, MIL-100(Fe) dehydrated the water of 79% from the crude emulsion within 5 min without any without any other assistive technologies. Therefore, this study exhibited the potential of demulsification using MOFs in the area of environmental remediation and petroleum industry. Additionally, this study could be a guidance for the development of new demulsifier to against the harsh conditions.