Hydrothermal carbon microsphere (HTC) is a carbon-based fluorescent material, which can be synthesized by hydrothermal carbonization of glucose. In this article, a series of 4ZnO·B2O3·H2O:Ln3+/HTC (where Ln = Eu or Tb) composites were prepared under hydrothermal conditions. The effects of the glucose concentration on the morphology, photoluminescence (PL) intensity and emission color of Zn3.64:Eu0.24[B2O7]·H2O/HTCx and Zn3.55:Tb0.3[B2O7]·H2O/HTCy were investigated. The relationship between morphology and PL intensity of composites was discussed. The results revealed that the presence of HTC did not change the original emission color of 4ZnO·B2O3·H2O:Ln3+ (where Ln = Eu or Tb) materials, but greatly increased their PL intensity, the sphere-like morphology composites have the strongest PL intensity. The Zn3.64:Eu0.24[B2O7]·H2O/HTCx and Zn3.55:Tb0.3[B2O7]·H2O/HTCy emit bright red light and green light, respectively, under respective excitation wavelengths. The present research suggests that the 4ZnO·B2O3·H2O:Ln3+/HTC (where Ln = Eu or Tb) composites may be candidates of red and green phosphors for display and lighting applications.

热液碳微球（HTC）是一种基于碳的荧光材料，可以通过葡萄糖的水热碳化来合成。在本文中，在水热条件下制备了一系列4ZnO·B 2 O 3 ·H 2 O：Ln 3+ / HTC（其中Ln = Eu或Tb）复合材料。葡萄糖浓度对Zn 3.64：Eu 0.24 [B 2 O 7 ]·H 2 O / HTC x和Zn 3.55：Tb 0.3 [B 2 O 7 ]·的形态，光致发光（PL）强度和发射色的影响H 2 O / HTC对y进行了调查。讨论了复合材料的形貌与PL强度之间的关系。结果表明，HTC的存在并没有改变4ZnO·B 2 O 3 ·H 2 O：Ln 3+（其中Ln = Eu或Tb）材料的原始发射颜色，但是极大地增加了其PL强度，即形态复合材料具有最强的PL强度。Zn 3.64：Eu 0.24 [B 2 O 7 ]·H 2 O / HTC x和Zn 3.55：Tb 0.3 [B 2 O 7 ]·H 2 O / HTC y在各自的激发波长下分别发出明亮的红色和绿色光。本研究表明，4ZnO·B 2 O 3 ·H 2 O：Ln 3+ / HTC（其中Ln = Eu或Tb）复合材料可能是用于显示和照明应用的红色和绿色磷光体的候选材料。