In this study, novel SnNb₂O₆–ZrO₂ nanosheet composites were successfully synthesized by hydrothermal method and evaluated for the conversion of cellulose. As a result, the composite samples demonstrate excellent catalytic performance toward cellulose conversion to 5-hydroxymethylfurfural (H₆MF), a crucial green platform chemical and excellent intermediate, in a bi-phase system of THF/H₂O with the addition of NaCl. The SnNb₂O–ZrO₂ catalysts with different ZrO₂ amounts were characterized by XRD, SEM, TEM, XPS, pyridine-FTIR and Raman to investigate the properties of the samples. The Lewis acid sites and Brønsted acid sites of the samples and the interaction between SnNb₂O₆ and ZrO₂ were also discussed in this work. Since the reaction temperature, reaction time, NaCl amounts and the volume ratio of THF/H₂O were altered, the highest conversion of cellulose achieved 85% over SnNb₂O₆–5% ZrO₂ catalyst, with good selectivity (41.8%) and yield (35.5%) of HMF in THF/H₂O (volume ratio of 3:1) within 6 h at 180 °C.

本研究通过水热法成功合成了新型的SnNb ₂ O ₆ -ZrO ₂纳米片复合材料，并评价了纤维素的转化率。结果，在添加NaCl的THF / H ₂ O双相体系中，复合样品在纤维素转化为5-羟甲基糠醛（H ₆ MF）（一种关键的绿色平台化学物质和出色的中间体）方面表现出出色的催化性能。 。具有不同ZrO ₂的SnNb ₂ O–ZrO ₂催化剂通过XRD，SEM，TEM，XPS，吡啶-FTIR和拉曼光谱分析样品中的痕量，以研究样品的性能。本文还讨论了样品的路易斯酸位和布朗斯台德酸位以及SnNb ₂ O ₆和ZrO ₂之间的相互作用。由于改变了反应温度，反应时间，NaCl量和THF / H ₂ O的体积比，纤维素的最高转化率达到了SnNb ₂ O ₆ -5％ZrO ₂催化剂的85％，选择性很好（41.8％）在180°C下在6小时内在THF / H ₂ O（体积比为3：1 ）中的HMF收率（35.5％）。