文献类型：期刊文献

英文题名：FACILE LOW-TEMPERATURE SYNTHESIS OF BENTONITE MODIFIED PEANUTS BIOCHAR AND ITS ADSORPTION PROPERTIES FOR Pb(II)

作者：Wang, Hai[1];Liu, Ren Rong[1];Tan, Liya[1];Yang, Ningcan[1];Kerkula, Anna[1];Zhang, Yaohong[2]

机构：[1]Shaoxing Univ, Sch Life Sci, Shaoxing 312000, Peoples R China;[2]Sch Chem & Chem Engn, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China

年份：2021

卷号：30

期号：1

起止页码：645

外文期刊名：FRESENIUS ENVIRONMENTAL BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000629181200073)、、Scopus(收录号：2-s2.0-85101659706)、WOS

基金：This work was supported by the Natural Science Foundation of Zhejiang Province (LZY21C030001) and National Natural Science Foundation of China (grant number 31500321).

语种：英文

外文关键词：Biochar; Bentonite; Adsorption; Pb2+

外文摘要：The adsorption properties of heavy metal Pb2+ in wastewater were studied by adding bentonite (BT) to peanuts shell biochar (BC) with pyrolysis temperature of 250 degrees C. Compared with BC, the removal effect of modified biochar (BBC) was slightly better. By adding BT, the surface area was larger and the functional group of BBC was increased. Adsorption process of Pb2+ was fitted by the Langmuir model, the adsorption kinetic was better described by the Pseudo -Second order model, It means that BBC adsorpt Ph2+ mainly by chemisorption. According to the results of the Langmuir model, the maximum adsorption capacity (q(m)) of BBC was 32,154 mg/g. The results of this study can provide a theoretical basis for its practical application in industrial wastewater treatment.