Laboratory of Environmental Remediation, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan.
J Hazard Mater. 2012 Feb 15;203-204:101-10. doi: 10.1016/j.jhazmat.2011.11.097. Epub 2011 Dec 9.
Graphene oxide (GO) is a highly effective adsorbent, and its absorbing capability is further enhanced through its in situ reduction with sodium hydrosulfite as the reductant. Acridine orange is the selected target to eliminate with GO as the adsorbent. Under identical conditions, GO without the in situ reduction showed a maximum adsorption capacity of 1.4 g g(-1), and GO with the in situ reduction provided a maximum adsorption capacity of 3.3 g g(-1). Sodium hydrosulfite converts carbonyl groups on GO into hydroxyl groups, which function as the key sites for the adsorption enhancement.
氧化石墨烯（GO）是一种高效的吸附剂，通过原位还原，用连二亚硫酸钠作为还原剂，可以进一步提高其吸附能力。选择吖啶橙作为目标污染物，用 GO 作为吸附剂进行去除。在相同条件下，未经原位还原的 GO 的最大吸附容量为 1.4 g g(-1)，而经过原位还原的 GO 的最大吸附容量为 3.3 g g(-1)。连二亚硫酸钠将 GO 上的羰基基团转化为羟基基团，这些基团是吸附增强的关键位点。
