Removal of acenaphthene by biochar and raw biomass with coexisting heavy metal and phenanthrene
Removal of acenaphthene by biochar and raw biomass with coexisting heavy metal and phenanthrene
复制标题
重金属和菲共存的生物炭和生物质去除苊
DOI：
10.1016/j.colsurfa.2018.08.057
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发表时间：
2018-12-05
影响因子：
5.2
通讯作者：
Yang, Chunping
中科院分区：
文献类型：
--
作者：
Lu, Li;Lin, Yan;Yang, Chunping
米麸，竹子和源自它们的生物炭被用作四个吸附剂，以从水溶液中去除艾戊烯。研究了共存的金属离子和有机化合物对吸附性能的影响。用米麸和竹子制备的生物炭的腺苷的吸附能力明显高于原始生物量。共存的Cu2+和Cr（VI）都抑制了生物炭的吸附，而生物质对腺苷的吸附受到共存离子的影响较小。共存的菲在生物炭上表现出与腺苷的明显竞争，但在生物质上没有与腺苷的竞争。分区过程是生物质上腺苷的主导吸附机制，该机制不容易受到共存物质的影响。在生物炭上均具有分区和表面吸附，并且后者受到重金属和有机化合物共存的影响更大。
Rice bran, bamboo and the biochar derived from them were used as four sorbents for the removal of acenaphthene from aqueous solution. The effects of coexisting metal ions and organic compounds on their sorption performances were investigated. The sorption capacity of acenaphthene by biochar prepared from rice bran and bamboo was significantly higher than the raw biomass. The coexisting Cu2+ and Cr(VI) both inhibited the sorption of acenaphthene by the biochar, whereas the sorption of acenaphthene by the biomass was less affected by the coexisting ions. The coexisting phenanthrene exhibited obvious competition with acenaphthene on the biochar, but it showed no competition with acenaphthene on the biomass. The partition process was a dominate sorption mechanism for acenaphthene on the biomass, which was not easily affected by the coexisting substances. Both partition and surface adsorption were enabled for acenaphthene on the biochar, and the latter was more affected by coexisting heavy metals and organic compounds.