Related Experiment Video
Updated: Jul 2, 2025
Preparation of Biopolymer Aerogels Using Green Solvents
Published on: July 4, 2016
Stereo-complex polylactide composite aerogel for crude oil adsorption
Weijian Zhang1, Mingtao Zhang2, Qiang Chen3
1State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China; State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China.
Environmentally friendly stereo-complex polylactide composite (SCC) aerogels offer efficient oil spill cleanup. These novel materials demonstrate high adsorption capacity and utilize solar energy for rapid remediation, preventing secondary pollution.
Area of Science:
- Materials Science
- Environmental Science
- Chemical Engineering
Background:
- Adsorption materials are crucial for oil spill remediation but face limitations with viscous crude oil and secondary pollution from non-degradable materials.
- Developing sustainable and efficient adsorbents is essential for effective oil spill management and environmental protection.
Purpose of the Study:
- To develop an environmentally friendly stereo-complex polylactide composite (SCC) aerogel for oil spill remediation.
- To investigate the adsorption properties, stability, and photothermal performance of the developed SCC aerogel, particularly for high-viscosity crude oil.
Main Methods:
- Fabrication of SCC aerogel using water-assisted thermally induced phase separation with 3 wt% carbon nanotubes.
- Characterization of the aerogel's hierarchical pore structure, crystallite content, and water contact angle.
- Evaluation of adsorption capacity, oil/water separation efficiency, hydrolysis resistance, and photothermal performance under simulated sunlight.
Main Results:
- The SCC aerogel exhibited a hierarchical micro/nanoscale pore structure and high stereo-complex crystallite content (35.7%).
- It demonstrated excellent water repellency (157° contact angle), superior hydrolysis resistance, and high adsorption capacity (41.2 g/g).
- Under sunlight, the aerogel showed significant photothermal performance (85°C surface temperature), reducing crude oil absorption time by 97.6% and enabling continuous recovery.
Conclusions:
- The developed SCC aerogel is a promising, eco-friendly material for efficient crude oil adsorption and remediation.
- Its unique properties, including photothermal activity, address limitations of conventional adsorbents, especially for viscous oils.
- This approach offers a sustainable route for oil spill cleanup using solar energy without causing additional environmental burden.
