Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention”
This article aims to discuss (1) the incorrect identification of Cr(III) and Cr(VI) binding energies in the Cr 2p XPS (X-ray photoelectron spectroscopy) spectra of the laden adsorbent (the nZVI-BC sample after Cr(VI) adsorption), (2) misconception regarding the Weber–Morris intraparticle diffusion m...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/26174/ http://umpir.ump.edu.my/id/eprint/26174/1/Comment%20on%20%E2%80%9Cremoval%20of%20hexavalent%20chromium%20by%20biochar%20supported%20.pdf |
| _version_ | 1848822466611249152 |
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| author | Tran, Hai Nguyen Pham, Viet Van Vo, Dai-Viet N. Nguyen-Tri, Phuong |
| author_facet | Tran, Hai Nguyen Pham, Viet Van Vo, Dai-Viet N. Nguyen-Tri, Phuong |
| author_sort | Tran, Hai Nguyen |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This article aims to discuss (1) the incorrect identification of Cr(III) and Cr(VI) binding energies in the Cr 2p XPS (X-ray photoelectron spectroscopy) spectra of the laden adsorbent (the nZVI-BC sample after Cr(VI) adsorption), (2) misconception regarding the Weber–Morris intraparticle diffusion model, and (3) inconsistency between the experiential data and the Thomas adsorption rate constants. The authors hope that our comments are beneficial for other researchers to avoid the undesirable mistakes. |
| first_indexed | 2025-11-15T02:41:41Z |
| format | Article |
| id | ump-26174 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:41:41Z |
| publishDate | 2019 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-261742019-12-06T08:25:04Z http://umpir.ump.edu.my/id/eprint/26174/ Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” Tran, Hai Nguyen Pham, Viet Van Vo, Dai-Viet N. Nguyen-Tri, Phuong QD Chemistry TP Chemical technology This article aims to discuss (1) the incorrect identification of Cr(III) and Cr(VI) binding energies in the Cr 2p XPS (X-ray photoelectron spectroscopy) spectra of the laden adsorbent (the nZVI-BC sample after Cr(VI) adsorption), (2) misconception regarding the Weber–Morris intraparticle diffusion model, and (3) inconsistency between the experiential data and the Thomas adsorption rate constants. The authors hope that our comments are beneficial for other researchers to avoid the undesirable mistakes. Elsevier 2019-10 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26174/1/Comment%20on%20%E2%80%9Cremoval%20of%20hexavalent%20chromium%20by%20biochar%20supported%20.pdf Tran, Hai Nguyen and Pham, Viet Van and Vo, Dai-Viet N. and Nguyen-Tri, Phuong (2019) Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention”. Chemosphere, 233. pp. 988-990. ISSN 0045-6535. (Published) https://doi.org/10.1016/j.chemosphere.2019.02.084 https://doi.org/10.1016/j.chemosphere.2019.02.084 |
| spellingShingle | QD Chemistry TP Chemical technology Tran, Hai Nguyen Pham, Viet Van Vo, Dai-Viet N. Nguyen-Tri, Phuong Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| title | Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| title_full | Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| title_fullStr | Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| title_full_unstemmed | Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| title_short | Comment on “removal of hexavalent chromium by biochar supported nZVI composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| title_sort | comment on “removal of hexavalent chromium by biochar supported nzvi composite : batch and fixed-bed column evaluations, mechanisms, and secondary contamination prevention” |
| topic | QD Chemistry TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/26174/ http://umpir.ump.edu.my/id/eprint/26174/ http://umpir.ump.edu.my/id/eprint/26174/ http://umpir.ump.edu.my/id/eprint/26174/1/Comment%20on%20%E2%80%9Cremoval%20of%20hexavalent%20chromium%20by%20biochar%20supported%20.pdf |