The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Polyethylenimine Facilitated Ethyl Cellulose for Hexavalent Chromium Removal with a Wide pH Range
Abstract
Ethyl cellulose (EC) composites modified with 20.0 wt % polyethylenimine (PEI) (PEI/ECs) demonstrated effective hexavalent chromium, [Cr(VI)], removal from solutions with a wide pH range. For example, 4.0 mg/L Cr(VI) solution with a pH below 3.0 was completely purified by 3.0 g/L PEI/ECs within 5 min, much faster than the as-received EC (2 h) and activated carbon (several hours). These PEI/ECs adsorbents has overcome the low pH limitation of Cr(VI) removal; for example, 4.0 mg/L Cr(VI) solution with a pH of 11.0 was completely purified within 15 min. These adsorbents followed chemical adsorption as revealed from the pseudo-second-order kinetic study. These PEI/ECs following the isotherm Langmuir model have a maximum adsorption capacity of 36.8 mg/g, much higher than pure EC (12 mg/g), tetrabutylammonium-modified celluloses (16.67 mg/g), and magnetic carbon (16 mg/g). The reduction of Cr(VI) to Cr(III) by the oxidation of amine groups and hydroxyl groups of PEI/ECs was verified as the main mechanism for the Cr(VI) removal.
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Cites
Polyvinyl Alcohol-Cellulose Nanofibrils-Graphene Oxide Hybrid Organic Aerogels
Javadi, A., Zheng, Q., Payen, F., Javadi, A., Altin, Y., Cai, Z., Sabo, R., & Gong, S. (2013) · ACS Applied Materials & Interfaces · doi:10.1021/am400171y · Cited by 193
Jayalakshmi, A., Rajesh, S., Senthilkumar, S., & Mohan, D. (2012) · Separation and Purification Technology · doi:10.1016/j.seppur.2012.02.010 · Cited by 59
Cited by
Ying, Y., Liu, Y., Wang, X., Mao, Y., Cao, W., Hu, P., & Peng, X. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/am5074722 · Cited by 658
Self-citationDas, S., Chakraborty, P., Ghosh, R., Paul, S., Mondal, S., Panja, A., & Nandi, A. K. (2017) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.7b02342 · Cited by 137
Xue, X., Yuan, W., Zheng, Z., Zhang, J., Ao, C., Zhao, J., Wang, Q., Zhang, W., & Lu, C. (2021) · Polymers · doi:10.3390/polym13244338 · Cited by 18
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Metadata
- Authors
- Qiu, B., Guo, J., Zhang, X., Sun, D., Gu, H., Wang, Q., Wang, H., Wang, X., Zhang, X., Weeks, B. L., Guo, Z., & Wei, S.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-11-10
- Volume
- 6
- Issue
- 22
- Pages
- 19816-19824
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2326626617
- Cited by
- 182
- References
- 2
- FWCI
- 12.64
- Type
- journal article
- Language
- en
- Open access
- closed
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