Journal article
Biochar/nano-zerovalent zinc-based materials for arsenic removal from contaminated water
International journal of phytoremediation, Vol.18(5), pp.442-449
10/11/2022
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Source: InCites
Abstract
In this study, we explored the potential of a newly prepared nano-zero valent zinc (nZVZn), biochar (BC)/nZVZn and BC/hydroxyapatite alginate (BC/HA-alginate) composites for the removal of inorganic As species from water. Relatively, higher percentage removal of As(III) and As(V) was obtained by nZVZn at pH 3.4 (96% and 94%, respectively) compared to BC/nZVZn (90% and 88%) and BC/HA alginate (88% and 80%) at pH 7.2. Freundlich model provided the best fit (R2 ¼ up to 0.98) for As(III) and As(V) sorption data of all the sorbents, notably for nZVZn. The pseudo-second order model well-described kinetics of As(III) and As(V) (R2 ¼ 0.99) sorption on all the sorbents. The desorption experiments demonstrated that the As removal efficiency, up to the third sorption/desorption cycle, was in the order of nZVZn BC/HA-alginate (88%) > BC/nZVZn (84%). The Fourier transform infrared spectroscopy depicted that the –OH, –COOH, Zn–O and Zn–OH surface functional groups were responsible for the sorption of As(III) or As(V) on the sorbents investigated here. This study highlights that removal of As species from water by BC/nZVZn composite can be compared with nZVZn, suggesting that integrating BC with nZVZn could efficiently remove As from As-contaminated drinking water.
Novelty statement
This is the first study to explore the potential of a newly prepared sugarcane bagasse biochar/nano-zerovalent zinc (BC/nZVZn) based composite for the removal of inorganic arsenic (As) species from water. The results indicated high percentage removal of As(III) and As(V) from water by BC/nZVZn that were comparable to nZVZn alone.
Details
- Title
- Biochar/nano-zerovalent zinc-based materials for arsenic removal from contaminated water
- Creators
- Israr Masood ul Hasan - Institute of Soil and Environmental Sciences, University of Agriculture FaisalabadHaram Javed - University of Agriculture FaisalabadMuhammad Mahroz Hussain - University of Agriculture FaisalabadMuhammad Bilal Shakoor - University of the PunjabIrshad Bibi - University of Agriculture FaisalabadMuhammad Shahid - COMSATS University Islamabad, Farwa - Donghua UniversityNengneng Xu - Donghua UniversityQunshan Wei - Donghua UniversityJinli Qiao - Donghua UniversityNabeel Khan Niazi - University of Agriculture Faisalabad
- Publication Details
- International journal of phytoremediation, Vol.18(5), pp.442-449
- Comment
- The authors are thankful to Higher Education Commission Pakistan, for providing financial support.
- Publisher
- Taylor & Francis
- Grant note
- Higher Education Commission (Project Nos. 6425/Punjab/NRPU/R&D/HEC/2016 and 6396/Punjab/NRPU/R&D/HEC/2016), Pakistan.
- Identifiers
- 991013060891402368
- Copyright
- © 2022 Taylor & Francis Group, LLC
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article