[Removal Performance and Mechanism of Potassium Permanganate Modified Coconut Shell Biochar for Cd(Ⅱ) and Ni(Ⅱ) in Aquatic Environment].

In this study, coconut shell biochar modified by KMnO (MCBC) was used as the adsorbent, and its removal performance and mechanism for Cd(Ⅱ) and Ni(Ⅱ) were discussed. When the initial pH and MCBC dosage were separately 5 and 3.0 g·L, respectively, the removal efficiencies of Cd(Ⅱ) and Ni(Ⅱ) were both higher than 99%.

Antimicrobial crinane-type from the bulbs of .

A phytochemical investigation on the 90% ethanol aqueous extract of the bulbs of led to the isolation of three new crinane-type alkaloids, designated as crinumlatines A-C (). The structures of the new compounds were elucidated by spectroscopic analysis (NMR, IR, UV, and MS). The isolated alkaloids were tested for antimicrobial potentials against 5 pathogenic microorganisms.