中文摘要：

鞣质的酸通常被看作 polyphenolic 污染物质之一，它可以引起严重威胁到环境。在这研究， polyaniline 吸附物被化学氧化综合在水的答案移开鞣质的酸。与溶液和强壮的吸附的 pH 极大地改变的鞣质的酸的吸附数量在 pH 5.86.7。共存的阳离子例如 Na+ ， K+ ，和 Ca2+ ，能在 polyaniline 上提高鞣质的酸的吸附，它可以被贡献在鞣质的酸和 polyaniline 之间的静电的相互作用。吸附过程能被兰米尔模型很好描述，最大的吸附能力是 117.65 mg 据敲獡獥漠 ? 敭湡丠獵敳瑬渠浵敢 ? 映楲瑣潩 ? 慦瑣牯愠摮琠敨浲污瀠牥潦浲湡散 ? 湩琠敨琠'T? 煥極灰摥眠瑩 ? 潣扭湩摥搠癥捩獥 ? 敲灳 ' 虡 N敶祬?牡??????┸愠摮??‥癯牥琠潨敳椠?桴?畴敢眠瑩?桴?剃?污湯吗？

英文摘要：

Tannic acid is generally considered as one of polyphenolic pollutants, which may cause severe threats to the environment. In this study, polyaniline adsorbent was synthesized by chemical oxidation to remove tannic acid in aqueous solutions. The adsorption amount of tannic acid varied greatly with pH of solution and strong adsorption was at pH 5.8-6.7. Coexisting cations, such as Na＋, K＋, and Ca2＋, can enhance the adsorption of tannic acid on poly- aniline, which may be contributed to the electrostatic interaction between tannic acid and polyaniline. The adsorp- tion process could be well described by Langmuir model and the maximum adsorption capacity was 117.65 rag.g〈 at 35℃and pH 6.0. The thermodynamic parameters calculated from the adsorption isotherms indicate that the ad- sorption of tannic acid is spontaneous and endothermic process. The polyaniline saturated with tannic acid can be desorbed in alkaline solution and regenerated adsorbent can be used repeatedly with high adsorption capacity, which implies that polyaniline adsorbents have a great potential in water purification for the removal of tannic acid.