“…With the rapid development of technology and economy after the industrial revolution, environmental pollution and energy shortage have gradually been exposed to the public and become a problem that cannot be ignored and urgently needs to be solved in various countries. , In the past few decades, people have tried to replace nonrenewable fossil fuels with new energy sources, such as wind energy, geothermal energy, ocean energy, and nuclear fusion energy. − The common problems of these methods are high cost, immature technology, and secondary pollution. Solar energy as the largest source of energy is inexhaustible, and thus the splitting of water into clean hydrogen energy by solar energy has recently been widely concerned. − The development of semiconductor photocatalysts with high efficiency and low cost is the key to realize solar-driven photocatalytic water splitting. − …”