%0 Journal Article %T Effect of acid type and gelation pH on the structural properties of silica aerogels prepared by use of rice hull biosilica %A KARAKUZU, B. %A TEMEL, T.M. %A YÜCEL, S. %A TERZİOĞLU, P. %A ELALMIŞ, Y. %J Sigma Journal of Engineering and Natural Sciences %D 2016 %V 34 %P 175-182 %R