Extreme rainfall erosivity: Research advances and future perspectives.

Extreme rainfall erosivity, the capacity of intense rainfall to induce soil erosion, is vital for anticipating future impacts on soil conservation. Despite extensive research, significant differences persist in terms of understanding influencing mechanisms, potential impacts, estimation models and future trends of extreme rainfall erosivity. Quantitatively describing extreme rainfall erosivity remains a key issue in existing research.

Formation and enhancement of negative thermal quenching in emission of KGdF:Eu, Yb@GQDs.

In order to obtain a red emitting phosphor with good luminescence thermal stability, a series of KGdF:Eu, Yb@GQD (GQD: Cl-containing graphene quantum dots) red emitting phosphors have been synthesized by the co-precipitation method, and their luminescence thermal properties have also been studied in detail. It is intriguing that the negative thermal quenching (NTQ) effect is induced by the double doping of Yb, and the effect is further enhanced by GQD coating. The strongest integrated PL intensities of the optimal double doped sample and the optimal GQD-coated sample are at 130 and 170 °C, in which the corresponding integrated PL intensities are presented as 117.

Biomass-derived O, N-codoped hierarchically porous carbon prepared by black fungus and for high performance supercapacitor.

Biomass-derived carbon materials have been widely researched due to their advantages such as low cost, environmental friendliness, readily available raw materials. Black fungus and contain many kinds of amino acids. In this paper, unique O, N-codoped black fungus-derived activated carbons (FAC ), and -derived activated carbons (HAC ) were prepared by KOH chemical activation under different temperatures without adding additional reagents containing nitrogen and oxygen functional groups, respectively.