基于废弃茄科植物的纳米铁/生物炭制备及其对含铬(Ⅵ)废水的吸附净化研究

doi:10.11896/cldb.23070104

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Abstract Using agricultural waste tobacco stems as raw materials, two modified methods were selected to prepare modified biochar, and the adsorption effects of biochar prepared by precursor mixing method and co-precipitation method on chromium were compared. SEM, EDS, FT-IR, BET, XRD, TEM were used to characterize biochar. The effects of single factors such as reaction pH, reaction time, initial concentration of Cr(Ⅵ) ions, and biochar addition on the adsorption effect of biochar were explored, and the fitting parameters such as kinetic model and isothermal adsorption model were used. The results showed that when pH=2, the adsorption effect was the best, the reaction time was close to saturation at 4 h, the lower the initial concentration of Cr(Ⅵ) ions, the better the adsorption effect, and the adsorption effect was close to saturation when the biochar addition amount was 0.1 g, which was more conducive to cost saving. The removal rate of Fe₂SO₄ modified biochar can be as high as 97%, the adsorption process is closer to the quasi-second-order kinetic model and the Langmuir model, and the theoretical value of adsorption is closer to the actual value.

Key words： tobacco stem waste nano iron modification dynamics biochar

Published: Online: 2024-10-12

CLC number:

X703

Fund:This work was financially supported by Key Project of Yunnan Fundamental Research Program (202301AS070011),Key S & T Project of China Tobacco Yunnan Industrial Co.,Ltd.(2022GY03),Yunnan S & T Talents and Platform Program (202105AC160058,202205AD160048),Academician and Expert Workstation of Yunnan Province,China (202205AF150024),and Kunming International S & T Cooperation Base,China (GHJD-2020026).

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	Articles by authors
	GUI Chao
	SONG Chenhao
	QIAN Wenmin
	LIU Ze
	ZHANG Wei
	Bounheng PANOUVONG
	CHEN Yubao

Cite this article:

GUI Chao,SONG Chenhao,QIAN Wenmin, et al. Preparation of Nano-Iron/Biochar Based on Waste Solanaceae Plants and Its Adsorption and Purification of Chromium(Ⅵ)-Containing Wastewater[J]. Materials Reports, 2024, 38(18): 23070104-9.

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http://www.mater-rep.com/EN/10.11896/cldb.23070104 OR http://www.mater-rep.com/EN/Y2024/V38/I18/23070104

1 Wen X, Ling L, Jiang S Z, et al. Environmental Monitoring and Assessment, 2023, 195(5), 602.
2 Jeremiah J, Laura S, Eenheng T G, et al. Environmental Science & Technology, 2006, 40(22), 7060.
3 Chen T, Zhou Z, Xu S, et al. Bioresource Technology, 2015, 190, 388.
4 Zhong X, Lu Z, Liang W, et al. Journal of Hazardous Materials, 2020, 393, 122353.
5 Yang L X, Yang Z, Jia Q, et al. Mineral Processing and Extractive Metallurgy Review, 2017, 38(6), 411.
6 Narayanan M, Srinivasan B, Shanmugasundaram S, et al. Environmental Research, 2022, 213, 542.
7 San W C, HaJin L. Carbohydrate Polymers, 2022, 98, 120028.
8 Xu J, Cao Z, Zhang Y, et al. Chemosphere, 2018, 195, 254-261.
9 Ganzoury A M, Chidiac C, Kurtz J, et al. Journal of Hazardous Materials, 2020, 393, 123212.
10 Fiyadh S S, AlSaadi A M, Jaafar Z W, et al. Journal of Cleaner Production, 2019, 230, 116225.
11 Mariana M, Khalil A H, Eenlma M M, et al. Journal of Water Process Engineering, 2021, 43, 254.
12 Qing D Q, Xian W, Li W C, et al. RSC Advances, 2018, 8(4), 1942.
13 Asikin N A, Norharyati W S W, Farhana A, et al. Journal of Chemical Technology & Biotechnology, 2022, 98(1), 282.
14 Lu D, Xin Y C, Jin J L, et al. Journal of Water Process Engineering, 2023, 53, 104265.
15 Akpinar D, Ozlem S H, Erdogan G, et al. LWT-Food Science & Technology, 2010, 43(1), 119.
16 Lin Y, Yan W, Sheng K. Waste Management & Research, 2016, 34(8), 793.
17 Agrupis S, Maekawa E, Suzuki K, et al. Journal of Wood Science, 2000, 46(3), 222.
18 Sun D, Sun S, Wang B, et al. Bioresource Technology, 2020, 297, 122471.
19 Singh M, Gupta A, Pal V, et al. Biomass Conversion and Biorefinery, 2024, 14(1), 553.
20 Sonia Y, Harita K, Suman S, et al. Applied Physics A, 2023, 129(2), 255.
21 Ren J, Li N, Li L, et al. Bioresource Technology, 2015, 178, 119.
22 Jiang Y, Li A, Deng H, et al. Bioresource Technology, 2019, 276, 183.
23 GB/T 7466-1987, Water Quality-Determination of Total Chromium, The State Environmental Protection Administration(in Chinese).
GB/T 7466-1987, 水质总铬的测定. 国家环境保护局.
24 Kong X R, Liu X R, Pi J C, et al. Nvironmental Science and Pollution Research International, 2017, 24(7), 6679.
25 Cui Y, Masud A, Aich N, et al. Journal of Hazardous Materials, 2019, 368, 477.
26 Salih H, Suhaib S, Ghosh Tushar K, et al. Environmental Processes, 2018, 5(1), 23.
27 Xiang Q, Lv K, Yu J, et al. Applied Catalysis B, Environmental, 2010, 96(3), 557.
28 Zhao Q S, Xu T, Song X P, et al. Frontiers in Bioengineering and Biotechnology, 2021, 9, 769667