文章信息/Info

Title:

Comparison of As(III) removal efficiency with various Cu-based nanocomposite membranes prepared by different methods

作者:

欒紅艷; 黃海鷗

（北京師范大學(xué)，北京 100875）

Author(s):

LUAN Hongyan; HUANG Haiou

（Beijing Normal University, Beijing 100875, China）

關(guān)鍵詞:

磁控濺射; 真空蒸鍍; 真空抽濾; 銅基復(fù)合膜; As(III)去除

Keywords:

magnetron sputtering;  vacuum deposition;  vacuum filtration;  copper-based membranes;  As(III) removal

DOI:

10.7502/j.issn.1674-3962.2018.02.07

文獻(xiàn)標(biāo)志碼:

A

摘要:

磁控濺射、真空蒸鍍和真空抽濾三種方法均可制備碳納米管復(fù)合膜。運(yùn)用掃描電鏡 (SEM)、X射線光電子能譜 (XPS)和X射線衍射 (XRD)對不同復(fù)合膜的形貌和表面化學(xué)性質(zhì)進(jìn)行表征，確定復(fù)合膜的結(jié)構(gòu)對其除As效率的影響。通過實(shí)驗(yàn)探究三種方法制備的不同復(fù)合膜對As(III)的去除效率以及不同碳納米管和天然有機(jī)質(zhì)對復(fù)合膜除As效率的影響。結(jié)果表明，磁控濺射鍍銅的MWCNT-OH和MWCNT-COOH復(fù)合膜以及真空抽濾制備的MWCNT-OH復(fù)合膜對水中As(III)的去除效率最高，均能達(dá)到90%左右，但水中天然有機(jī)質(zhì)的存在會(huì)抑制磁控濺射鍍銅膜對As(III)的去除。

Abstract:

Magnetron sputtering, vacuum evaporation and vacuum filtration are three methods to prepare carbon nanotube composite membranes. To investigate the effects of composite membranes’ structure on As(III) removal, morphologies and surface chemical properties of different composite membranes were determined by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The impacts of different carbon nanotubes as well as the natural organic matter (NOM) on As(III) removal were also conducted. The results showed that MWCNT-OH and MWCNT-COOH composite membranes modified with nano-copper by magnetron sputtering and the Cu-based membrane fabricated by vacuum filtration had the highest removal efficiencies of As(III) in water, which could be up to 90%. However, the presence of natural organic matter in water inhibited the As(III) removal by these two nanocompoaite membranes.