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Novel biomass-derived hybrid TiO 2 /carbon material using tar-derived secondary char to improve TiO 2 bonding to carbon matrix
Journal of Analytical and Applied Pyrolysis ( IF 6 ) Pub Date : 2018-05-01 , DOI: 10.1016/j.jaap.2018.02.013
Paweł Lisowski , Juan Carlos Colmenares , Ondřej Mašek , Dariusz Łomot , Olga Chernyayeva , Dmytro Lisovytskiy

Abstract The present paper reports on an innovative and simple route for the preparation of new hybrid materials based on TiO2 and carbonaceous supports with relatively high biochar content prepared via controlled laboratory batch pyrolysis system. Pine tar was used as a precursor for secondary char (confirmed by TGA) serving as a coating and “connecting material” between commercially available Degussa P25 TiO2 and biomass derived porous carbon support (biochar) produced from softwood or Lignin. The prepared hybrid materials were characterized by a series of physico-chemical characterization techniques such as XRD, XPS, TGA, UV–vis, XRF, SEM, COD and BET analysis. The results confirmed that the method used is viable and can be used to embed TiO2 in the structure of biochar. In aqueous phase phenol degradation, the TiO2/(secondary char-coated biochar) hybrid materials proved photocatalitically active, and especially the TiO2/secondary char-coated SWP700) showed better photocatalytic performance than the commercial TiO2 counterpart.

中文翻译:

新型生物质衍生的杂化 TiO 2 /碳材料使用焦油衍生的二次炭来改善 TiO 2 与碳基体的结合

摘要 本文报道了一种创新且简单的制备基于 TiO2 和碳质载体的新型杂化材料的路线,该材料具有相对较高的生物炭含量,通过受控实验室批量热解系统制备。松焦油被用作二次炭(由 TGA 确认)的前体,用作可商购的 Degussa P25 TiO2 和由软木或木质素生产的生物质衍生多孔碳载体(生物炭)之间的涂层和“连接材料”。通过XRD、XPS、TGA、UV-vis、XRF、SEM、COD和BET分析等一系列理化表征技术对制备的杂化材料进行了表征。结果证实所使用的方法是可行的,可用于将TiO2嵌入到生物炭的结构中。在水相苯酚降解中,
更新日期:2018-05-01
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