Adsorption of lead over graphite oxide.

Adsorption of lead over graphite oxide.
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DOI:
10.1016/j.saa.2013.09.088
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发表时间:
2014-01-24
影响因子:
4.4
通讯作者:
Oki, Aderemi
Oki, Aderemi
中科院分区:
化学2区
文献类型:
--
作者:
Olanipekun, Opeyemi;Oyefusi, Adebola;Neelgund, Gururaj M.;Oki, Aderemi

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采用原子吸收分光光度计(AAS)测定了氧化石墨(GO)对铅的吸附效率和吸附动力学。采用石墨化学氧化法制备了GO,并用FTIR、SEM、TGA和XRD等手段对GO进行了表征。发现GO对含有50、100和150ppm Pb 2+的溶液的吸附效率分别为98、91和71%。发现GO的吸附能力高于石墨。因此,活性炭氧化去除重金属可能是一个可行的选择,以减少污染的饮用水。
The adsorption efficiency and kinetics of removal of lead in presence of graphite oxide (GO) was determined using the Atomic Absorption spectrophotometer (AAS). The GO was prepared by the chemical oxidation of graphite and characterized using FTIR, SEM, TGA and XRD. The adsorption efficiency of GO for the solution containing 50, 100 and 150 ppm of Pb2+ was found to be 98, 91 and 71% respectively. The adsorption ability of GO was found to be higher than graphite. Therefore, the oxidation of activated carbon in removal of heavy metals may be a viable option to reduce pollution in portable water.
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