Preparation of Activated Carbon from Holdfasts of Kelp, Large Brown Seaweed, Saccharina japonica
Preparation of Activated Carbon from Holdfasts of Kelp, Large Brown Seaweed, Saccharina japonica
复制标题
DOI：
10.4236/eng.2021.132006
复制
发表时间：
2021-02
期刊：
影响因子：
12.8
通讯作者：
O. Terakado;F. Tanaka;Yuki Tsunamori
中科院分区：
文献类型：
--
作者：
O. Terakado;F. Tanaka;Yuki Tsunamori
干海带是日本最重要的食品之一，主要用作基本成分。海带的固着物或假根通常被丢弃，因为岩石、贝壳、绳索和其他污染物缠绕在它们之间。本研究的目的是检查是否有可能通过化学活化技术，利用氯化锌，从日本收获的海带，一个流行的海带holdfasts的活性炭的制备，并研究工艺参数的影响，如碳化温度和组成的激活剂。在所考察的实验条件下，在600℃和氯化锌组成为75质量%时，观察到最大比表面积为1.7 × 103 m2/g，大于商业活性炭的比表面积。
Dried kelp is one of the most important Japanese foods mainly used as base ingredient. Holdfasts, or rhizoids, of kelp are usually discarded, as rocks, shells, ropes and other contaminants are entangled among them. The purpose of the present study was to examine whether the preparation of activated carbon from holdfasts of Saccharina japonica, a popular kelp harvested in Japan, is possible by a chemical activation technique utilizing zinc chloride, and to study the influence of the process parameters, such as carbonization temperature and the composition of the activator. Under the examined experimental conditions, maximum specific surface area of 1.7 × 103 m2/g, larger than that of a commercial activated carbon, was observed at 600℃ and the zinc chloride composition of 75 mass%.