Abstract Microspheres composed of H2SO4-protonated graphitic carbon nitride (g-C3N4) nanosheets were prepared through a template-free dialysis method. The g-C3N4 microspheres displayed a much larger band gap and greater UV light absorption in the light region of 200–300 nm compared with that of bulk g-C3N4, and thus substantially improved their UV light photocatalytic performance towards the degradation of Rhodamine B (RhB). The present work approached soft solution assembly of g-C3N4 nanosheets in a one pot manner, demonstrating a new strategy for constructing g-C3N4 nanostructures.

中文翻译：

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质子化 g-C3N4 纳米片无模板组装成具有增强紫外光光催化活性的微球

摘要 通过无模板透析法制备了由 H2SO4 质子化石墨氮化碳 (g-C3N4) 纳米片组成的微球。与块体 g-C3N4 相比，g-C3N4 微球在 200-300 nm 光区显示出更大的带隙和更大的紫外光吸收，从而大大提高了它们对降解罗丹明 B 的紫外光光催化性能。 RHB）。目前的工作以一锅方式接近 g-C3N4 纳米片的软溶液组装，展示了构建 g-C3N4 纳米结构的新策略。