The construction of p-n heterojunction for enhancing photocatalytic performance in environmental application: A review

Directional and Ultrafast Charge Transfer in Oxygen‐Vacancy‐Rich ZnO@Single‐Atom Cobalt Core‐Shell Junction for Photo‐Fenton‐Like Reaction

“…[43] The high TOC removal percentage (76.8 %) of SMX in the ZnO@SA-Co-CN + PMS + Vis system implies its excellent oxidation capacity for decomposing of TrOCs into CO 2 and H 2 O (Figure S17). [44] Besides, the ZnO@SA-Co-CN + PMS + Vis system functions well in a wide working pH range (3)(4)(5)(6)(7)(8)(9)(10)(11), maintaining over 97 % of SMX degradation (Figure 3C). In addition, more than 95 % of SMX can be eliminated after 10 successive cycles of catalytic degradation process (Figure 3D), implying the excellent stability and reusability of the ZnO@SA-Co-CN catalyst.…”

“…[6] The chargetransfer modes in p-n junction can be classified into traditional type-II and direct Z-scheme mechanisms. [7] The BIEF provides a strong driving force to accelerate charge carriers separation and transfer and to navigate their transportation paths. [8] For example, ultra-fast electron transfer (< 280 fs) from CuSnI to ZnO has been observed in the CuSnI/ZnO pn heterojunction via a type-II charge transfer pathway.…”

Embedding Carbon Quantum Dots into Crystalline Polyimide Covalent Organic Frameworks to Enhance Water Oxidation for Achieving Dual-Channel Photocatalytic H2O2 Generation in a Wide pH Range

“…At present, H 2 O 2 can be produced by traditional anthraquinone and electrochemical methods, but these methods generally have some defects, such as explosion risk, toxic byproducts, and high energy consumption. , Therefore, it has become very necessary to develop the novel manufacturing technology of H 2 O 2 . Owing to the characteristics of low energy cost, high efficiency, and easy operation, the photocatalytic technique shows excellent application prospects in the synthesis of H 2 O 2 . − Normally, photocatalytic H 2 O 2 synthesis over semiconductor can be achieved by two-electron oxygen reduction and two-electron water oxidation under light radiation. , Beyond all questions, the semiconductor photocatalyst plays an important role in the synthesis of H 2 O 2 …”

Directional and Ultrafast Charge Transfer in Oxygen‐Vacancy‐Rich ZnO@Single‐Atom Cobalt Core‐Shell Junction for Photo‐Fenton‐Like Reaction

“…[43] The high TOC removal percentage (76.8 %) of SMX in the ZnO@SA-Co-CN + PMS + Vis system implies its excellent oxidation capacity for decomposing of TrOCs into CO 2 and H 2 O (Figure S17). [44] Besides, the ZnO@SA-Co-CN + PMS + Vis system functions well in a wide working pH range (3)(4)(5)(6)(7)(8)(9)(10)(11), maintaining over 97 % of SMX degradation (Figure 3C). In addition, more than 95 % of SMX can be eliminated after 10 successive cycles of the catalytic degradation process (Figure 3D), implying the excellent stability and reusability of the ZnO@SA-Co-CN catalyst.…”