Utilization of paper wastes as renewable resource of lignocellulosic constituents has the opportunity to promote a cleaner environment and to prepare valuable materials. This paper describes our study on an isolation of low-fiber powder cellulose from two grades of wastes as feedstocks: waste newsprint paper and cardboard wrapper through recycling including a thermal defibration, an alkali treatment with a solution of NaOH with a concentration from 0.03 to 1.00 М, bleaching with a solution of Н2О2 with a concentration from 0.8 to 2.6 М followed with an acid hydrolysis of the pretreated species with a solution of HNO3 of 1.5 and 3.0 M. The impact of the pretreatment on sizes of fibers was evaluated with stereoscopic microscopy. The powder celluloses obtained as a result of the acid hydrolysis exhibited the structure of cellulose I revealed with a WAXS method and were of a high-grade purity, according to EDXA. Sorption capacities of the powder celluloses from the waste cardboard and newsprint towards a dye methylene blue were 6.67 and 8.75 mg g–1, respectively.

中文翻译：

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废纸功能材料：一、从废新闻纸和纸板到高级纤维素纤维

利用废纸作为木质纤维素成分的可再生资源有机会促进更清洁的环境并制备有价值的材料。本文描述了我们从作为原料的两种废物中分离低纤​​维粉末纤维素的研究：废新闻纸和纸板包装纸通过回收利用，包括热解纤，用浓度为 0.03 到 1.00 的 NaOH 溶液进行碱处理М，用浓度为 0.8 至 2.6 М 的 Н2О2 溶液漂白，然后用 1.5 和 3.0 M 的 HNO3 溶液酸水解预处理的物质。用立体显微镜评估预处理对纤维尺寸的影响. 根据 EDXA 的说法，酸水解获得的粉末纤维素表现出纤维素的结构 I 用 WAXS 方法揭示，并且具有高纯度。来自废纸板和新闻纸的粉末纤维素对染料亚甲蓝的吸附能力分别为 6.67 和 8.75 mg g-1。