Abstract：
The current study aimed to assess the effectiveness of biochar formed from algae in the removal of Cr(VI) through the process of impregnating brown algae Sargassum hemiphyllum with KHCO3. The synthesis of KHCO3-activated biochar (KBAB-3), demonstrating remarkable adsorption capabilities for Cr(VI), was accomplished utilizing a mixture of brown algae and KHCO3 in a mass ratio of 1:3, followed by calcination at a temperature of 700 °C. Based on the empirical evidence, it can be observed that KBAB-3 shown a significant ability to adsorb Cr(VI) within a range of 60-160 mg g-1 across different environmental conditions. In addition, the KBAB-3 material demonstrated the advantageous characteristic of easy separation, allowing for the continued maintenance of a high efficiency in removing Cr(VI) even after undergoing numerous cycles of reuse. In conclusion, the application of KBAB-3, a novel adsorbent, exhibits considerable prospects for effective removal of Cr(VI) from diverse water sources in the near future.
摘要：
本研究旨在通过用KHCO3浸渍褐藻半叶藻来评估藻类形成的生物炭在去除Cr（VI）中的有效性。KHCO3活性生物炭(KBAB-3)的合成,证明了对Cr(VI)的显着吸附能力，使用质量比为1:3的褐藻和KHCO3的混合物，然后在700°C的温度下煅烧。基于经验证据，可以观察到，KBAB-3在不同的环境条件下显示出吸附60-160mgg-1范围内的Cr（VI）的显着能力。此外,KBAB-3材料表现出易于分离的有利特性，即使在经历多次重复使用循环后，也可以继续保持去除Cr（VI）的高效率。总之,KBAB-3，一种新型吸附剂的应用，在不久的将来，从各种水源中有效去除Cr（VI）具有广阔的前景。
