Synthesis of lignin-modified silica nanoparticles from black liquor of rice straw pulping
Synthesis of lignin-modified silica nanoparticles from black liquor of rice straw pulping
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DOI：
10.1016/j.powtec.2013.06.034
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发表时间：
2013-09
影响因子：
5.2
通讯作者：
Xiaojun Zhang;Z. Zhao;Guangjun Ran;Yan Liu;Shuang Liu;Bing Zhou;Zichen Wang
中科院分区：
文献类型：
--
作者：
Xiaojun Zhang;Z. Zhao;Guangjun Ran;Yan Liu;Shuang Liu;Bing Zhou;Zichen Wang
以造纸黑液为原料，采用稻草综合利用的策略，开发了一种新型的绿色制备木质素改性纳米二氧化硅的方法。以造纸黑液中的木质素为结构导向剂控制粒径，以纸浆米尔斯废气中的CO2为沉淀剂，制备了木质素改性的纳米二氧化硅。详细研究了木质素浓度、pH值和温度对材料性能的影响，并在此基础上提出了木质素改性二氧化硅纳米粒子的合成机理。
A novel and green route was developed to prepare lignin-modified silica nanoparticles from black liquor by an integrated utilization strategy of rice straw. The lignin in black liquor was used as a structure directing reagent to control the particles' size, CO2obtained from the waste gas of pulp mills was used as a precipitating reagent and finally the lignin-modified silica nanoparticles were obtained. The effects of lignin concentration, pH and temperature on the properties of the materials have been investigated in detail, and the synthesis mechanism of the lignin-modified silica nanoparticles was proposed based on a series of experimental results.