A composite of pyrolytic Triarrhena biochar loading with TiO2 nanoparticles has been synthesized by the sol-gel method. The composite shows a well-developed hollow mesoporous and macropore structure as characterized by XRD, BET, and SEM. When used as an absorbent to remove Congo red from aqueous solution, it was found that as-prepared composite performed better absorption capacity than single biochar or TiO2. The results suggest that biochar loading with TiO2 could be promisingly implemented as an environmentally friendly and inexpensive adsorbent for Congo red removal from wastewater.

中文翻译：

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Triarrhena Biochar负载TiO2纳米颗粒对刚果红的有效去除

已通过溶胶-凝胶法合成了负载有 TiO2 纳米颗粒的热解 Triarrhena 生物炭复合材料。XRD、BET 和 SEM 表征了该复合材料具有发育良好的中空介孔和大孔结构。当用作从水溶液中去除刚果红的吸收剂时，发现所制备的复合材料比单一生物炭或 TiO2 具有更好的吸收能力。结果表明，生物炭负载 TiO2 可以作为一种环保且廉价的吸附剂，用于从废水中去除刚果红。