Surface modification of palm fibers has been made by different methods. This work, cellulose fibers from palm were bleached and modified by zirconium oxychloride. Cellulose fibers were coated with ZrO₂·nH₂O particles with different amount of zirconium oxychloride in acidic medium in the presence of cellulose fibers using ammonium hydroxide as the precipitating agent. The coating of hydrous zirconium oxide on cellulose fibers was carried out by scanning electron microscopy, X-ray diffraction, themogravimetric analysis, attenuated total reflectance Fourier transform infrared spectroscopy and atomic emission spectrometry with inductively coupled plasma were also techniques used to characterize the materials. Dichromate ion was adsorbed on the Cell/ZrO₂·nH₂O by immersing this solid in an aqueous solution of potassium dichromate. The analyses to determine the concentration after the adsorption were made using UV–Vis spectrum, in a wavelength of 349 nm. The results were satisfactory showing that the Cell/ZrO₂·nH₂O materials obtained presented good adsorption capacity. Results showed that the amount ZrO₂·nH₂O particles coated on cellulose fibers influenced in the sorption capacity of dichromate ions.

中文翻译：

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ZrO 2·nH 2 O颗粒包覆重铬酸根离子对棕榈纤维的改性及表征

棕榈纤维的表面改性已经通过不同的方法进行了。这项工作将棕榈的纤维素纤维漂白，并用三氯氧化锆进行了改性。在纤维素纤维存在下，使用氢氧化铵作为沉淀剂，在酸性介质中，用不同量的氯氧化锆用ZrO ₂ ·nH ₂ O颗粒包裹纤维素纤维。还通过扫描电子显微镜，X射线衍射，热重分析，衰减全反射傅里叶变换红外光谱和电感耦合等离子体原子发射光谱等技术对纤维素纤维进行了水合氧化锆涂层的表征。重铬酸根离子被吸附在Cell / ZrO ₂ ·nH上₂ Ó由重铬酸钾的水溶液中浸渍该固体。确定吸收后浓度的分析是使用349 nm波长的UV-Vis光谱进行的。结果令人满意，表明获得的Cell / ZrO ₂ ·nH ₂ O材料具有良好的吸附能力。结果表明，纤维素纤维上ZrO ₂ ·nH ₂ O的包覆量对重铬酸根离子的吸附能力有影响。