The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Effects of Feedstock and Pyrolysis Temperature on Biochar Adsorption of Ammonium and Nitrate
Open accessAbstract
Biochar produced by pyrolysis of biomass can be used to counter nitrogen (N) pollution. The present study investigated the effects of feedstock and temperature on characteristics of biochars and their adsorption ability for ammonium N (NH4(+)-N) and nitrate N (NO3(-)-N). Twelve biochars were produced from wheat-straw (W-BC), corn-straw (C-BC) and peanut-shell (P-BC) at pyrolysis temperatures of 400, 500, 600 and 700°C. Biochar physical and chemical properties were determined and the biochars were used for N sorption experiments. The results showed that biochar yield and contents of N, hydrogen and oxygen decreased as pyrolysis temperature increased from 400°C to 700°C, whereas contents of ash, pH and carbon increased with greater pyrolysis temperature. All biochars could sorb substantial amounts of NH4(+)-N, and the sorption characteristics were well fitted to the Freundlich isotherm model. The ability of biochars to adsorb NH4(+)-N followed: C-BC>P-BC>W-BC, and the adsorption amount decreased with higher pyrolysis temperature. The ability of C-BC to sorb NH4(+)-N was the highest because it had the largest cation exchange capacity (CEC) among all biochars (e.g., C-BC400 with a CEC of 38.3 cmol kg(-1) adsorbed 2.3 mg NH4(+)-N g(-1) in solutions with 50 mg NH4(+) L(-1)). Compared with NH4(+)-N, none of NO3(-)-N was adsorbed to biochars at different NO3(-) concentrations. Instead, some NO3(-)-N was even released from the biochar materials. We conclude that biochars can be used under conditions where NH4(+)-N (or NH3) pollution is a concern, but further research is needed in terms of applying biochars to reduce NO3(-)-N pollution.
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Cites
Dynamic Molecular Structure of Plant Biomass-Derived Black Carbon (Biochar)
Keiluweit, M., Nico, P. S., Johnson, M. G., & Kleber, M. (2010) · Environmental Science & Technology · doi:10.1021/es9031419 · Cited by 3,230
A review of biochar and its use and function in soil
Sohi, S. P., Krull, E., Lopez-Capel, E., & Bol, R. (2010) · Advances in Agronomy · doi:10.1016/s0065-2113(10)05002-9 · Cited by 2,240
Black Carbon Increases Cation Exchange Capacity in Soils
Liang, B., Lehmann, J., Solomon, D., Kinyangi, J., Grossman, J., O'Neill, B., Skjemstad, J. O., Thies, J., Luizão, F. J., Petersen, J., et al. (2006) · Soil Science Society of America Journal · doi:10.2136/sssaj2005.0383 · Cited by 2,191
The forms of alkalis in the biochar produced from crop residues at different temperatures
Yuan, J.-H., Xu, R.-K., & Zhang, H. (2011) · Bioresource Technology · doi:10.1016/j.biortech.2010.11.018 · Cited by 2,029
Lehmann, J., Pereira da Silva, J., Steiner, C., Nehls, T., Zech, W., & Glaser, B. (2003) · Plant and Soil · doi:10.1023/a:1022833116184 · Cited by 1,878
Chen, B., Zhou, D., & Zhu, L. (2008) · Environmental Science & Technology · doi:10.1021/es8002684 · Cited by 1,823
Ahmad, M., Lee, S. S., Dou, X., Mohan, D., Sung, J.-K., Yang, J. E., & Ok, Y. S. (2012) · Bioresource Technology · doi:10.1016/j.biortech.2012.05.042 · Cited by 1,357
Biochar impact on nutrient leaching from a Midwestern agricultural soil
Laird, D., Fleming, P., Wang, B., Horton, R., & Karlen, D. (2010) · Geoderma · doi:10.1016/j.geoderma.2010.05.012 · Cited by 1,250
Compositions and sorptive properties of crop residue-derived chars
Chun, Y., Sheng, G., Chiou, C. T., & Xing, B. (2004) · Environmental Science & Technology · doi:10.1021/es035034w · Cited by 1,079 · cited 5×
“54), indicating the less hydrophilic surface of biochars at higher temperature [19].”
BackgroundResultInfluentialBiochar's role in mitigating soil nitrous oxide emissions: A review and meta-analysis
Cayuela, M. L., van Zwieten, L., Singh, B. P., Jeffery, S., Roig, A., & Sánchez-Monedero, M. A. (2014) · Agriculture, Ecosystems & Environment · doi:10.1016/j.agee.2013.10.009 · Cited by 1,053
Cited by
Preparation, modification and environmental application of biochar: A review
Wang, J., & Wang, S. (2019) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2019.04.282 · Cited by 2,345
Xiao, X., Chen, B., Chen, Z., Zhu, L., & Schnoor, J. L. (2018) · Environmental Science & Technology · doi:10.1021/acs.est.7b06487 · Cited by 914
Effects of biochar on soil available inorganic nitrogen: a review and meta-analysis
Nguyen, T. T. N., Xu, C.-Y., Tahmasbian, I., Che, R., Xu, Z., Zhou, X., Wallace, H. M., & Bai, S. H. (2017) · Geoderma · doi:10.1016/j.geoderma.2016.11.004 · Cited by 715
Domingues, R. R., Trugilho, P. F., Silva, C. A., Melo, I. C. N. A. D., Melo, L. C. A., Magriotis, Z. M., & Sánchez-Monedero, M. A. (2017) · PLOS ONE · doi:10.1371/journal.pone.0176884 · Cited by 654
Zhang, M., Song, G., Gelardi, D. L., Huang, L., Khan, E., Mašek, O., Parikh, S. J., & Ok, Y. S. (2020) · Water Research · doi:10.1016/j.watres.2020.116303 · Cited by 586
Metadata
- Authors
- Gai, X., Wang, H., Liu, J., Zhai, L., Liu, S., Ren, T., & Liu, H.
- Venue
- PLoS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2014-12-03
- Volume
- 9
- Issue
- 12
- Pages
- e113888
- ISSN
- 1932-6203 (ISSN-L)
- OpenAlex
- W2069986104
- Cited by
- 684
- References
- 14
- FWCI
- 17.59
- Type
- journal article
- Language
- en
- Open access
- gold
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