Superoleophilic-hydrophobic Kapok oil sorbents via energy efficient carbonization by Yunos, Normaisarah, Müller, Julian, Chen, Soo Kien, Tan, Kar Ban, Hepp, Marco, Butz, Benjamin, Schönherr, Holger, Talib, Zainal Abidin, Md Salim, Nora Salina, Mohd Ghazali, Mohd Sabri, Lee, Oon Jew