随着社会的发展，传统能源不断消耗，我们很快就要面临能源枯竭的问题。寻找新的清洁可再生能源来取代传统的化石能源将是未来研究的主要方向。氢能源被很多人认为是未来最理想的新能源，但目前大量制备氢气还需要依靠化石燃料。而在实验研究中，利用太阳能分解水来制备氢气被认为是解决能源危机的一种有前途的策略。在光催化制氢过程中，合适且高效的助催化剂的研究和开发是重点和难点问题。本文以ZIF-67金属-有机骨架制备中空CoSx多面体，并以此为g-C3N4的助催化剂。经实验证明，复合催化剂CoSx/ g-C3N4具有较好的光催化活性。作为助催化剂，中空CoSx在光催化领域具有较大的发展潜力。

With the development of society and the constant consumption of traditional energy, we will soon meet the problem of energy exhaustion. Finding new clean and renewable sources to replace traditional fossil energy will be the main direction of the future research. Hydrogen energy is considered to be the most ideal new energy source in the future, but the current large-scale preparation of hydrogen still depends on fossil fuels. In experimental research, the use of solar energy to decompose water to produce hydrogen is considered to be a promising strategy for solving the energy crisis. In the photocatalytic hydrogen production process, the research and development of suitable and efficient cocatalysts are the key and difficult issues. In this paper, hollow CoSx polyhedron was prepared from the ZIF-67 metal-organic framework and used as a cocatalyst for g-C3N4. It has been proved by experiments that the composite catalyst CoSx/g-C3N4 has good photocatalytic activity. As a cocatalyst, hollow CoSx has great potential in the field of photocatalysis.