ชื่อผุ้ร่วมผลงาน : Prawit Nuengmatcha, Ratana Mahachai and Saksit Chanthai
ปีที่เผยแพร่ : 2558
สถานที่ตีพิมพ์ : Asian Journal of Chemistry 27 (2015) 4167-4170.
รายละเอียด : Graphene oxide (GO) was optimally produced from graphite as a starting material and was subject to functionalized with 3-mercaptopropyl-trimethoxysilane (MPTMS) to acquire thiol group (-SH) as a selective carbon-based adsorbent for the removal of mercury from aqueous solution comparing with its bare graphite (BGP). The GO-SH was characterized by Fourier transform infrared spectroscopy (FTIR) and energy dispersive X-ray spectroscopy (EDX). IR characteristic peaks appear at wave numbers of 3367(O-H), 2576 (S-H), 1719 (C=O), 1224 and 1049 (C-O), and 1160 (Si-O-C) indicating the thiol group attached. Also, EDX spectrum revealing both Si and S peaks confirms the MPTMS bound on the GO surface. For an optimal adsorption study, the effects of solution pH (pH 2-9), contact time (10-100 min) and in
