▎ 摘　　要

Using honeysuckle extract as reductant, a green and efficient route is developed for preparing reduced graphene oxide (RGO) with high solubility (3 mg/mL) in water without stabilizers. The dispersibility of as-prepared RGO is higher compared with data reported (normally <1 mg/mL). The produced RGO can be uniformly dispersed in water and organic solvents with excellent stability even after one month. As a proof of concept, the RGO coated cotton fabric has outstanding anti-ultraviolet radiation properties with a UV protection factor (UPF) as high as 897.16, similar to 54 times higher than the non-modified cotton fabric, providing possibilities for future industrial applications, especially in anti-ultraviolet coatings and biological materials.