In this paper, we present a green, low‐cost carbon material derived from waste biomass (hazelnut shell (HS) and olive residue (OR)) to fabricate a binary TiO₂/carbon composite for improving the photocatalytic performance of TiO₂ under visible light. The synthesis, characterization, and photocatalytic applications of the TiO₂/carbon composite were performed. Hydrothermal carbonization was used to obtain the carbon support materials. A series of TiO₂/carbon composite materials from waste biomass based on hydrochar, fullerene, and carbon nanotubes has been prepared for comparison purposes. Photocatalytic performances of all composites were measured by comparing methylene blue (MB) removal rates. The results show that waste biomass based hydrochar/TiO₂ composites possessed superior visible‐light photocatalytic activity compared with high technology carbons/TiO₂ composites such as fullerene and carbon nanotubes. The enhanced photodegradation capacity could be ascribed to the delocalized furanic conjugated system and functional groups of HS‐TiO₂ and OR‐TiO₂ composites.

中文翻译：

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废物生物质的水热碳化衍生的TiO2 /碳材料：高效，低成本，可见光驱动的光催化剂

在本文中，我们提出了一种绿色，低成本的碳材料，其由废物生物质（榛子壳（HS）和橄榄渣（OR））制成，以制造二元TiO ₂ /碳复合材料，以改善可见光下TiO ₂的光催化性能。光。进行了TiO ₂ /碳复合材料的合成，表征和光催化应用。使用水热碳化获得碳载体材料。TiO ₂系列为了比较的目的，已经从基于水碳，富勒烯和碳纳米管的废弃生物质中制备碳/碳复合材料。通过比较亚甲基蓝（MB）的去除率来测量所有复合材料的光催化性能。结果表明，将废生物质基于hydrochar /的TiO _2层复合材料具有高的技术的碳/二氧化钛相比具有优异的可见光的光催化活性_2个复合材料如富勒烯和碳纳米管。较高的光降解能力归因于HS-TiO ₂和OR-TiO ₂复合材料的离域呋喃共轭体系和官能团。