期刊论文

The adsorption ability of microporous benzylated wood powder to copper(II) and lead ions(II)

Zhao, Y.

中文

环境科学学报

0253-2468

2016

36

3

857-864

10.13671/j.hjkxxb.2015.0514

Supported by the National Natural Science Foundation of China(No.31100422).

本校为第一且通讯机构

以中国杉木粉为研究对象,经苄基化改性和水热处理制得多微孔苄基化木粉.同时,以多微孔苄基化木粉为吸附材料,研究了苄基化木粉的增重率、溶液的pH值、接触时间、离子初始浓度和吸附温度等因素对Cu~(2+)和Pb~(2+)吸附效果的影响,并采用红外光谱、扫描电镜、核磁共振等分析手段对木粉改性与水热处理前后的材料进行了结构表征.结果表明:木粉经苄基化改性及水热处理后所制得的多微孔苄基化木粉对Cu~(2+)和Pb~(2+)的吸附百分率比原木粉分别提高57%和209%,木粉的苄基化程度、溶液的pH值、接触时间、离子初始浓度和温度是影响Cu~(2+)和Pb~(2+)吸附百分率的重要因素.当溶液的pH值为5.5,Cu~(2+)和Pb~(2+)...

In this study, a novel microporous benzylated wood powder (MBWP) has been prepared from Chinese Fir through the benzylation modification reaction and hydrothermal treatment process, respectively. Taking the prepared MBWP as the adsorbents, effects of the MBWP's weight gain rate, solution pH, incubation time, metal ions concentration and temperature on the adsorption of Cu2+ and Pb2+ were investigated. In addition, The structure and morphology of the original wood powder and the prepared MBWP were also characterized by using of IR, SEM and NMR t...