Silica aerogels can be used as adsorbents to remove organic pollutants due to their porous microstructure and outstanding properties such as low density and high porosity. However, their application is limited due to the high cost of production. Therefore, it is recommended to use the inexpensive precursor of glass water and the low-cost ambient pressure drying. In this study, the hydrophobic mesoporous silica aerogel was prepared by water glass (WG) and methyltriethoxysilane (MTES) co-precursor with molar ratio of MTES / WG = 1.5 through the sol-gel method followed by pressure drying which used as an adsorbent. The results showed that the optimal conditions of pH = 8.5, two-stage aging, sodium ion washing, and most importantly, the use of cetyltrimethylammonium bromide as a surfactant led to the preparation of an aerogel with outstanding properties such as a low density (0.102 g/cm3), high contact angle (140°), porosity (95%), high specific area (1588 m2/g) , and the average pore size of 5.7 nm. The adsorption capacity of aerogels was measured in 6 different solvents: gasoline, oil, hexane, toluene, chloroform and ethanol. The results of adsorption capacity showed that the prepared airgel absorbed oil about 20 times, gasoline about 5.9 times, toluene about 4.4 times, and hexane about 2.7 times more than activated carbon. Repeatable adsorption characteristics of the samples were also checked by performing cycling tests for crude oil and concluded that the aerogel kept its original shape and structure until the sixth cycle and the absorption capacity showed a very small decrease until the fourth cycle.