化石燃料是不可持續的能源，由於過度開採而迅速耗盡。 從環境的角度來看，化石氣體燃燒的價值過大，導致大氣中二氧化碳排放水平急劇上升，造成全球變暖和天氣變化。 將生物質光催化轉化為氫氣是一種捕獲和儲存陽光作為化學能的方法，然後可以在環境友好的能源循環中排放。 聚（庚嗪酰亞胺）(PHI) 受到了廣泛關注，因為它具有有趣的雙重功能：在同一材料中輕質吸收和存儲光生電子。 在這項研究中，我們報告了在殼聚醣和三聚氰胺作為起始前體存在的情況下 PHI 的結構修飾。 殼聚醣-鉀-PHI (C-K-PHI) 表明在有效激發電子和促進電荷載流子轉移方面具有優勢此外，C-K-PHI 增強的光吸收改善了生物質在可見光照射下產氫過程中的光轉化。 沉積有 Pt 助催化劑的 C-K-PHI 可有效催化氫氣中濃度分別為 120 和 80 μmol.h-1 的半乳糖和葡萄糖水溶液超過 96 小時。 在420 nm單色光照射下，半乳糖和葡萄糖重整的表觀量子產率分別達到81.3%和65.2%。 本研究強調了一種通過殼聚醣重塑 PHI 結構的綠色可靠策略，從而顯著促進生物質光催化重整為 H2 釋放和高附加值精細化學品。

Due to overexploitation, fossil fuels are nonrenewable energy sources that are fast running out. The value of burning fossil fuels is excessive from an environmental standpoint; as a result, atmospheric CO2 emission levels have increased alarmingly, contributing to global warming and climatic change. It is possible to absorb and store solar energy as chemical energy through the photocatalytic reformation of biomass into hydrogen, which may subsequently be released in an eco-friendly energy cycle. Because it demonstrates an amazing double functionality-lightweight absorption and storage of photogenerated electrons in the same substance-Poly (heptazine imide) (PHI) has drawn a lot of interest. In the present work, we describe a structural alteration of PHI with chitosan and melamine acting as starting precursors. Chitosan-Potassium-PHI (C-K-PHI) is superior at successfully stimulating the electron and encouraging the transfer of charge carriers. Additionally, the better photo reforming of biomass in H¬ generation under visible irradiation was made possible by C-K-increased PHI's light absorption. Aqueous solutions of galactose and glucose in H2 were successfully catalyzed by C-K-PHI deposited with a Pt cocatalyst for more than 96 hours at 120 and 80 mol.h-1, respectively. Under 420 nm monochromatic irradiation, the AQYs of the photocatalyst reforming of galactose is 81.3% follow by 65.2% of glucose. The current work shows a safe and effective method to modify PHI's structure using chitosan, significantly enhancing the photocatalytic reforming of biomass into high-value-added fine chemicals and H2 evolution.

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