New photocatalysts were synthesized from graphene oxide (GO) and zinc porphyrins via non-covalent self-assembly in Pickering emulsions. The formation of surface-attached metal organic frameworks (SURMOFs) with different size of mesopores (1.1. and 1.6 nm) was confirmed by X-ray powder diffraction and BET nitrogen absorption methods. The activity of the SURMOF/GO materials in photodegradation of rhodamine 6G (Rh6G) and 1,5-dihydroxynaphtalene (DHN) were studied spectroscopically. The photocatalysts initiate aerobic oxidative photodestruction with k up to 2.3 × 10⁻¹ min⁻¹ through generation of singlet oxygen on porphyrin centers. Under anaerobic conditions, these materials assist photoreduction of the same dyes in the SURMOF micropores. The mechanisms of photodegradation assisted by SURMOF/GO hybrids were confirmed by a combination of MALDI-TOF spectroscopy, Sensor Green and terephthalic acid probing. The size of the SURMOF pores controls the reduction, which occur due to the effective charge separation between porphyrin SURMOFs and GO. The photocatalyst with larger pores can transform both Rh6G and DHN, whereas that one with smaller pores is active only with respect to small DHN molecules. The ability of as-formed SURMOF/GOs to exploit two mechanisms yielding different products of photodestruction provides a basis for creating novel ambivalent photocatalysts for selective transformations of targeted compounds in molecular mixtures.

新型光催化剂是由氧化石墨烯 (GO) 和锌卟啉在 Pickering 乳液中通过非共价自组装合成的。通过 X 射线粉末衍射和 BET 氮吸收方法证实了具有不同介孔尺寸（1.1 和 1.6 nm）的表面附着金属有机骨架（SURMOF）的形成。通过光谱研究了 SURMOF/GO 材料在光降解罗丹明 6G (Rh6G) 和 1,5-二羟基萘 (DHN) 中的活性。光催化剂以 k 高达 2.3 × 10 ^-1 min ^-1启动有氧氧化光破坏通过在卟啉中心产生单线态氧。在厌氧条件下，这些材料有助于 SURMOF 微孔中相同染料的光还原。通过 MALDI-TOF 光谱、Sensor Green 和对苯二甲酸探测的组合证实了 SURMOF/GO 杂化物辅助的光降解机制。SURMOF 孔的大小控制还原，这是由于卟啉 SURMOF 和 GO 之间的有效电荷分离而发生的。孔径较大的光催化剂可以同时转化 Rh6G 和 DHN，而孔径较小的光催化剂仅对小 DHN 分子有活性。