大孔氮化硼纤维及其制备方法

张作泰; 刘飞; 李顺

张作泰

南方科技大学

南方科技大学

518000 广东省深圳市南山区学苑大道1088号

南方科技大学

518000 广东省深圳市南山区学苑大道1088号 (广东,深圳,南山区)

南方科技大学

518000 广东省深圳市南山区学苑大道1088号 (广东,深圳,南山区)

CN201810184213.2

2018-03-07

CN108441986B

2020-09-08

2020-09-08

授权

2020-09-08

授权发明

第一

一种大孔氮化硼纤维，是将丝瓜络作为碳源模板，通过硼源、氮源置换丝瓜络中的碳元素，从而得到与原有的丝瓜络基体具有相同的孔结构的大孔氮化硼纤维。制备方法：将丝瓜络清洗干燥后，将硼源和丝瓜络按配比置于双层坩埚中，其中硼源放入双层坩埚下层，丝瓜络置于上层，再将双层坩埚放入高温炉内，通入氮源，将温度升到1300‑1600℃，保持一段时间，降至室温，即得到白色丝瓜络骨架状的氮化硼纤维。本发明采用置换方式使氮化硼替代丝瓜络中的碳元素，既具有氮化硼本身的理化性能，同时又可得到与原有的丝瓜络基体相同的孔结构，比表面积大，孔隙均匀，对重金属、染料、油污类具有较强的吸附性能，在废水处理领域具有良好的应用前景。

A macroporous boron nitride fiber has a same pore structure as that of an original loofah matrix, and is obtained by using loofah sponge as a carbon source template, replacing carbon element in the loofah sponge by a boron source and a nitrogen source. A preparation method comprises the following steps: washing and drying the loofah sponge, placing the boron source and the loofah sponge respectively on the lower layer and the upper layer of a double-layer crucible according to a ratio, putting the double-layer crucible in a high temperature furnace, introducing a nitrogen source, heating to 1300 to 1600 DEG C, maintaining the temperature for a while, and cooling to room temperature to obtain the boron nitride fiber having a white loofah sponge skeleton. A substitution method is used to replace the carbon element in the loofah by boron nitride, the macroporous boron nitride fiber has the physical and chemical properties of the boron nitride, also has the same pore structure as the original loofah matrix, has a large specific surface area and uniform pores, has strong adsorption performance for heavy metals, dyes and oils, and has a good application prospect in the field of wastewater treatment.

D01F9/08

D01F9/08

（+PATENT GRANT）[2020-09-08][CN]

1

1

傅俏梅

深圳青年人专利商标代理有限公司

PatSnap

张作泰,刘飞,李顺. 大孔氮化硼纤维及其制备方法[P]. 2020-09-08.