文献类型：期刊文献

英文题名：Functionalized porous nanoscale Fe3O4 particles supported biochar from peanut shell for Pb(II) ions removal from landscape wastewater

作者：Jin, Xiaojun[1,2];Liu, Renrong[1];Wang, Huifang[1];Han, Li[1];Qiu, Muqing[1];Hu, Baowei[1]

机构：[1]Shaoxing Univ, Sch Life Sci, Shaoxing 312000, Peoples R China;[2]Tongchuang Engn Design Co LTD, Shaoxing 312000, Peoples R China

年份：2022

卷号：29

期号：25

起止页码：37159

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000742624000004)、、WOS

基金：This work is financially supported by the Natural Science Foundation of Zhejiang Province, China (LGF20C030001 and LGF21C030001). Authors are very grateful for their support.

语种：英文

外文关键词：Nanoscale Fe3O4; Peanut shell; Removal; Pb(II)

外文摘要：The large amounts ofheavy metal from landscape wastewater have become serious problems of environmental pollution and risks for human health. The development of efficient novel adsorbent is a very important for treatment of heavy metal. The functionalized porous nanoscale Fe3O4 particles supported biochar from peanut shell (PS-Fe3O4) for removal of Pb(II) ions from aqueous solution was investigated. The characterization of PS-Fe3O4 composites showed that biochar was successfully coated with porous nanoscale Fe3O4 particles. The pseudo second-order kinetic model and Langmuir model were more fitted for describing the adsorption process of Pb(II) ions in solution. The adsorption process of Pb(II) ions removal by PS-Fe3O4 composites was a spontaneous and endothermic process. The adsorption mechanisms of Pb(II) ions by PS-Fe3O4 composites were mainly controlled by the chemical adsorption process. The maximum adsorption capacity of Pb(II) ions removal in solution by PS-Fe3O4 composites reached 188.68 mg/g. The removal mechanism included Fe-O coordination reaction, co-precipitation, complexation reaction, and ion exchange. PS-Fe3O4 composites were thought as a low-cost, good regeneration performance, and high efficiency adsorption material for removal of Pb(II) ions in solution.