PubAg

Main content area

You searched for: Author "Zhang, Di" Remove constraint Author: "Zhang, Di" Journal Chemosphere Remove constraint Journal: Chemosphere Publication Year 2014 Remove constraint Publication Year: 2014
Start Over

Search

3  Search Results

1 - 3 of 3
Number of results to display per page

Search Results

1. Adsorption of antibiotic ciprofloxacin on carbon nanotubes: pH dependence and thermodynamics

Author:
Zhang, Di,   et al.   ; Li, Haibo; Han, Xiaozeng; Xing, Baoshan;     Show all 4 Authors
Source:
Chemosphere 2014 v.95 pp. 150-155
ISSN:
0045-6535
Subject:
adsorbents; adsorption; antibiotics; carbon nanotubes; ciprofloxacin; desorption; energy; entropy; environmental factors; hysteresis; models; pH; risk; sorption isotherms; surface area; temperature
Abstract:
... The environmental risks of antibiotics have attracted increasing research attention, but their environmental behaviors remain unclear. In this study, functionalized carbon nanotubes (CNTs), namely, hydroxylized (MH), carboxylized (MC), graphitized multi-walled CNTs (MG) and single-walled CNTs (SW) were used as adsorbents and ciprofloxacin (CIP) as an adsorbate to investigate the effect of pH and t ...
DOI:
10.1016/j.chemosphere.2013.08.053

2. Characterization and spacial distribution variability of chromophoric dissolved organic matter (CDOM) in the Yangtze Estuary

Author:
Zhang, Di,   et al.   ; Wang, Ying; Shen, Zhenyao; Chen, Jing; Feng, Chenghong;     Show all 5 Authors
Source:
Chemosphere 2014 v.95 pp. 353-362
ISSN:
0045-6535
Subject:
anthropogenic activities; coasts; dissolved organic matter; estuaries; fluorescence; humification; models; principal component analysis; rivers; sediments; wastes; Yangtze River
Abstract:
... The spatial characteristics and the quantity and quality of the chromophoric dissolved organic matter (CDOM) in the Yangtze Estuary, based on the abundance, degree of humification and sources, were studied using 3D fluorescence excitation emission matrix spectra (F-EEMs) with parallel factor and principal component analysis (PARAFAC–PCA). The results indicated that the CDOM abundance decreased and ...
DOI:
10.1016/j.chemosphere.2013.09.044

3. Sorption and solubility of ofloxacin and norfloxacin in water–methanol cosolvent

Author:
Zhang, Di,   et al.   ; Peng, Hongbo; Li, Hao; Wang, Chi; Pan, Bo; Xing, Baoshan;     Show all 6 Authors
Source:
Chemosphere 2014 v.103 pp. 322-328
ISSN:
0045-6535
Subject:
antibiotics; carbon nanotubes; hydrogen bonding; methanol; models; norfloxacin; ofloxacin; pollution control; prediction; risk assessment; solubility; solutes; solvents; sorption
Abstract:
... Prediction of the properties and behavior of antibiotics is important for their risk assessment and pollution control. Theoretical calculation was incorporated in our experimental study to investigate the sorption of ofloxacin (OFL) and norfloxacin (NOR) on carbon nanotubes and their solubilities in water, methanol, and their mixture. Sorption for OFL and NOR decreased as methanol volume fractions ...
DOI:
10.1016/j.chemosphere.2013.12.025