Abstract. Increasing oil spill accidents and oil industrial wastewater have led to the frequent occurrence of oily contaminants. To remedy these environmental risks, separating oil/water mixtures by absorbent materials has shown great potential. However, viscous oils are difficult to clean up with conventional materials because of their high viscosity with respect to practical applications. A photothermal (PMSQ)-vinyltrimethoxysilane (VTMS)-polypyrrole (PPy) xerogel was fabricated to heat the viscous oil by utilizing the photothermal property of PPy. The chemical structure and micronano morphology of the obtained composite xerogel were confirmed by Fourier transform infrared spectroscopy, scanning electron microscopy, and contact angle goniometry. Experiments of oil adsorption show that the PMSQ-VTMS-PPy xerogel could be applied for viscous oil/water mixture separation, exhibiting excellent properties such as water-repellency, high oil/water separation capacity, adequate buoyancy, good reusability, and easy fabrication. Such a remarkable performance of the PMSQ-VTMS-PPy photothermal xerogel is caused by the fact that crude oil could be heated by harvesting sunlight to reduce the viscosity of oil and achieve the goal of rapidly separating the oil/water mixture. Because of the facile and scalable merits, the one-pot sol–gel method presented is very suitable for industrial uses.

中文翻译：

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光热聚甲基倍半硅氧烷-乙烯基三甲氧基硅烷-聚吡咯干凝胶通过一锅法合成高效太阳能驱动的粘性油/水分离

摘要。越来越多的石油泄漏事故和石油工业废水导致油性污染物的频繁发生。为了弥补这些环境风险，通过吸收性材料分离油/水混合物已显示出巨大的潜力。然而，粘性油很难用传统材料清除，因为它们在实际应用中的粘度很高。利用PPy的光热特性，制备了光热（PMSQ）-乙烯基三甲氧基硅烷（VTMS）-聚吡咯（PPy）干凝胶以加热粘性油。通过傅里叶变换红外光谱、扫描电子显微镜和接触角测角法证实了所得复合干凝胶的化学结构和微纳米形态。油吸附实验表明，PMSQ-VTMS-PPy干凝胶可用于粘性油水混合物的分离，具有拒水性、油水分离能力高、浮力充足、重复使用性好、易于制造等优异性能。PMSQ-VTMS-PPy 光热干凝胶的如此出色的性能是由于原油可以通过收集阳光来加热以降低油的粘度并实现快速分离油/水混合物的目标。由于简便和可扩展的优点，所提出的一锅溶胶-凝胶方法非常适合工业用途。PMSQ-VTMS-PPy 光热干凝胶的如此显着性能是由于原油可以通过收集阳光加热以降低油的粘度并实现快速分离油/水混合物的目标。由于简便和可扩展的优点，所提出的一锅溶胶-凝胶方法非常适合工业用途。PMSQ-VTMS-PPy 光热干凝胶的如此显着性能是由于原油可以通过收集阳光加热以降低油的粘度并实现快速分离油/水混合物的目标。由于简便和可扩展的优点，所提出的一锅溶胶-凝胶方法非常适合工业用途。