1、 六方氮化硼 : 新型类碳材料河北省微纳氮化硼重点实验室“ 六方氮化硼制备及其应用关键技术 ” 教育部创新团队河北工业大学材料学院活性氮化硼及其在环境治理中的应用国务院 大气污染防治行动计划 规定 2017年全国地级及以上城市可吸入颗粒物的浓度比 2013年下降 10%以上；京津冀区域细颗粒物浓度下降约 25%.高比表面积、高活性氮化硼材料H2OFogH2OH2OSOX-NOX- H3O+K+ SOX-NOX-K+K+SOX-NOX- SOX-NOX-活性炭吸附 氮化硼吸附方向性 饱和性共价键效果不明显 极性键 选择性B+-N-效果显著H2O活性氮化硼强烈的脱硫、脱硝能力在环保领域的应用前景广
2、阔！开发活性氮化硼在脱硫、脱硝方面的应用研究高比表面积、高活性氮化硼材料One of the greatest problems that the world is facing today. 1.8 million children die every year from diarrhea mainly due to water contamination.Environmental pollution5Adsorption for effective environmental pollution control: convenience, easy operation, simplici
3、ty of design几种环境污染净化途径6高比表面积多孔 BN的合成T. Kawasaki, et al, J. Ceram. Soc. Jpn, 10410(1996)935Melamine diborate (M 2B ) molecular crystal: C3N6H62H3BO3 Hydrogen-bonded structureLayer-like morphology by the interlinked planar triangular H3BO3 and C3N6H6 molecules7Step 1: Boric acid + melamine M 2B precur
4、sor (80 C for 4 h)Step 2: the precursor was heated at 1460C in N2 for 4 h to obtain porous BNC3N6H62H3BO3hBN8PrecursorPorous BN-Li et al. Nanotech. 24 (2013) 155603 高比表面积多孔 BN的合成High-quality porous BN with uniform hole diameter, high purity, high surface area and large-scale yieldBET surface area:16
5、87 m2/gPore volume: 0.99 cm3/gPore sizes: 1.3 nm, 3.9 nm9type I isotherm with an H4 type broad hysteresis loop-Li et al. Nanotech. 24 (2013) 155603高比表面积多孔 BN的合成High adsorption capacity :88 wt% of MO was removed within 5 minthe maximum removal capacity: 298.3 mg/g高比表面积多孔 BN对甲基橙的吸附Adsorption isotherms
6、 of MOAdsorption rate of MOCe: equilibrium concentration; C0 : initial solution concentration qe: adsorbed amount of pollutant on the equilibrium concentration10Initial concentration of 40 mg/LAdsorption of Methyl orange (MO) - large pore volume- high density structural defects- high specific surface area -Li et al. Nanotech. 24 (2013) 155603
