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本文利用六方相硼氮碳(h-BCN)半导体光催化剂吸附钴离子,构筑不含任何贵金属成分的光催化体系,在可见光照射下,实现水的催化氧化生成氧气反应.h-BCN半导体材料由于B–N离子键的“lop-sided”效应,对金属离子具有很强的化学亲和性,利用此性质并结合其高比表面积的特性,制备出了一系列具有特殊性能的金属/h-BCN杂化层状结构.研究结果表明,在钴离子镶嵌的h-BCN(Co/h-BCN)杂化材料中,金属和载体之间的协同作用能有效促进光生载流子分离、降低反应活化能,进而提高光催化氧化水产氧性能.本文展示了利用廉价和地球高丰度元素构筑不含贵金属成份的纳米层状复合材料,有望将过渡金属催化和h-BCN光催化耦合,实现面向可持续能源转换的协同催化过程.
In this paper, hexagonal boron-carbonitride (h-BCN) semiconductor photocatalyst is used to adsorb cobalt ions to construct a photocatalytic system without any precious metal components, and under the visible light irradiation, catalytic oxidation of water is generated. B-N ionic bond “lop-sided ” effect, has a strong chemical affinity for metal ions, the use of this property combined with its high specific surface area characteristics, prepared a series of special performance of the metal / h-BCN hybrid layered structure.The results show that the synergistic interaction between the metal and the carrier can effectively promote the photocarrier separation in the h-BCN (Co / h-BCN) Reduce the reaction activation energy, and then improve the photocatalytic oxidation of aquatic oxygen performance.This paper shows that the use of cheap and high abundance elements of the earth to build non-precious metal nanocomposite composite material is expected to transition metal catalyst and h-BCN photocatalytic coupling, To achieve a collaborative catalysis process for sustainable energy conversion.