Stabilization of dissolvable biochar by soil minerals: Release reduction and organo-mineral complexes formation

Yang, Fan; Xu, Zibo; Huang, Yuandong; Tsang, Daniel C.W.; Ok, Yong Sik; Zhao, Ling; Qiu, Hao; Cao, Xinde

doi:10.1016/j.jhazmat.2021.125213

Cited by 51 publications

(18 citation statements)

References 66 publications

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“…27,35 For example, Katzourakis and Chrysikopoulos indicated that aggregation could contribute to the attachment of ENPs in porous media. 33 Liu et al 27 and Yang et al 28 indicated that chemical bonds were formed between carbon dots and minerals, as well as biochar and bentonite, in batch and aggregation experiments, respectively. Soil colloids and ENPs were also found to be strongly associated during transport experiments, even under variable flow conditions.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The unique chemical and physical properties are commonly introduced on the surface of ENPs when they are manufactured (e.g., material doping, modification) by regulating surface moieties or functional groups to achieve designed functionality (e.g., superhydrophobic/hydrophilic, antifouling, self-cleaning, etc). , In contrast, SNPs are much more complex than ENPs because of the presence of both roughness and charge heterogeneity. In addition to van der Waals (VDW) and electrical double-layer (EDL) interactions, the formation of SNP–ENP associations may also be impacted by H-bonding and Lewis acid–base interactions. − However, only a few studies have attempted to differentiate the relative contribution of these interactions on aggregation and retention processes in porous media.…”

Section: Introductionmentioning

confidence: 99%

“…The transport behavior of colloids can sometimes be reasonably described by quantifying these interactions. ,, For example, heteroaggregation between carbon nanoparticles and mineral colloids resulted in sedimentation of carbon nanoparticles due to reduced electrostatic repulsion. , However, some recent studies indicated that ENPs (e.g., CNTs) could exhibit different transport behavior from classic colloid filtration theory (CFT) and DLVO theory. , For example, Katzourakis and Chrysikopoulos indicated that aggregation could contribute to the attachment of ENPs in porous media . Liu et al and Yang et al indicated that chemical bonds were formed between carbon dots and minerals, as well as biochar and bentonite, in batch and aggregation experiments, respectively. Soil colloids and ENPs were also found to be strongly associated during transport experiments, even under variable flow conditions .…”

Section: Introductionmentioning

confidence: 99%

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Significance of Non-DLVO Interactions on the Co-Transport of Functionalized Multiwalled Carbon Nanotubes and Soil Nanoparticles in Porous Media

Zhang

Bradford

Klumpp

et al. 2022

Environ. Sci. Technol.

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Derjaguin−Landau−Verwey−Overbeek (DLVO) theory is typically used to quantify surface interactions between engineered nanoparticles (ENPs), soil nanoparticles (SNPs), and/or porous media, which are used to assess environmental risk and fate of ENPs. This study investigates the co-transport behavior of functionalized multiwalled carbon nanotubes (MWCNTs) with positively (goethite nanoparticles, GNPs) and negatively (bentonite nanoparticles, BNPs) charged SNPs in quartz sand (QS). The presence of BNPs increased the transport of MWCNTs, but GNPs inhibited the transport of MWCNTs. In addition, we, for the first time, observed that the transport of negatively (BNPs) and positively (GNPs) charged SNPs was facilitated by the presence of MWCNTs. Traditional mechanisms associated with competitive blocking, heteroaggregation, and classic DLVO calculations cannot explain such phenomena. Direct examination using batch experiments and Fourier transform infrared (FTIR) spectroscopy, asymmetric flow field flow fractionation (AF4) coupled to UV and inductively coupled plasma mass spectrometry (AF4-UV-ICP-MS), and molecular dynamics (MD) simulations demonstrated that MWCNTs-BNPs or MWCNT-GNPs complexes or aggregates can be formed during co-transport. Non-DLVO interactions (e.g., H-bonding and Lewis acid−base interaction) helped to explain observed MWCNT deposition, associations between MWCNTs and both SNPs (positively or negatively), and co-transport. This research sheds novel insight into the transport of MWCNTs and SNPs in porous media and suggests that (i) mutual effects between colloids (e.g., heteroaggregation, co-transport, and competitive blocking) need to be considered in natural soil; and (ii) non-DLVO interactions should be comprehensively considered when evaluating the environmental risk and fate of ENPs.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Significance of Non-DLVO Interactions on the Co-Transport of Functionalized Multiwalled Carbon Nanotubes and Soil Nanoparticles in Porous Media

Zhang

Bradford

Klumpp

et al. 2022

Environ. Sci. Technol.

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“…Interestingly, the combined application of RSB and LCC residue could offset the negative impact of only RSB addition on soil inorganic N to some extent ( Table 4 ). This might have occurred due to the net gain of N that was caused by LCC residue as GM ( Xie et al, 2016 ); and the extra organic N input may be probably preserved by forming a biochar-organo-mineral complex which can further contribute to mineralized N in soil ( Zhang et al, 2020 ; Yang et al, 2021 ). These results demonstrate that the combination of RSB with LCC residue can be a novel and promising strategy for managing rice straw and N that can effectively mitigate the agro-environmental risks associated with reddish flooded paddy fields.…”

Section: Discussionmentioning

confidence: 99%

Combining Rice Straw Biochar With Leguminous Cover Crop as Green Manure and Mineral Fertilizer Enhances Soil Microbial Biomass and Rice Yield in South China

2022

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Whether combining rice-straw biochar (RSB) with leguminous cover crop (LCC) has synergistic effects in the rice production system or not, is still unknown. Two pot experiments were conducted to systematically explore the impacts of RSB on mass decomposition and nitrogen (N) release from LCC residues after incorporation into acidic paddy soil. Similarly, the effect of combining these two factors on soil nutrient status and microbial biomasses in the rice production system was also examined. Five treatments, namely, no N fertilizer (CK), 100% N fertilizer (150 kg N ha–1 as N100), 80% N fertilizer plus RSB (N80B), LCC (N80M), and a combination of RSB with LCC (N80BM), were included. The results indicated that biomass decomposition and N release pattern followed a double exponential decay model such that the addition of RSB slightly stimulated the rates of both mass decomposition and N release during the initial rapid phase of decomposition. Thereafter, it notably slowed down the rates of both these parameters during the relatively slower stage of incorporating LCC residues to paddy soil during early rice season. Compared to 100% N, applying 80% N in conjunction with RSB and/or LCC residue increased grain yield and its components (i.e., effective panicles, 1,000-grain weight, and fully filled grains) that subsequently increased N accumulation and its physiological use efficiency (PUEN) of rice shoot. Moreover, under 20% N, applying RSB and/or LCC residue remarkably increased the soil organic matter and total N, and soil microbial populations and biomasses, while the contents of NH4+ and NO3– were decreased in RSB-amended paddy soil (N80B and N80BM), in comparison with N100. Thus, combining RSB with LCC residue is a novel and promising management intervention for reducing mineral fertilizer use, improving soil fertility and rice production, and consequently minimizing the overall production cost in south China.

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“…Goethite (α-FeOOH; Gt) is a widely distributed iron mineral in water, soil and sediment environments and has been considered a relatively stable sorbent in the natural environment due to its high specific surface area (SSA), surface charge and abundance of Fe-OH (Coughlin and Stone, 1995;Carvalho Filho et al, 2015). It has been proven that DOM can bind Gt to form the Gt-DOM complex in the formation process of its coprecipitation with Gt or its adsorption on Gt surface, which enhances the hydrophobicity and changes the surface elemental composition and charge of Gt (Gu et al, 1994;Xue et al, 2019;Yang et al, 2021b). This can change the adsorption sites and adsorption capacity of Gt for pollutants (Mueller, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effects of dissolved black carbon bound with goethite on physicochemical properties and adsorption capacity for imidacloprid: Adsorption versus coprecipitation

Zhang

Ma²,

Meng³

et al. 2022

Front. Environ. Sci.

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Dissolved black carbon (DBC) is an important component of natural dissolved organic matter and can bind to iron minerals to form DBC-mineral complexes by adsorption and coprecipitation. However, reports regarding the difference in physicochemical properties between adsorbed and coprecipitated DBC-mineral complexes and their sorption capacity for polar organic pollutants are limited. Herein, goethite (Gt) and the adsorbed and coprecipitated complexes of DBC with Gt (SGt-DBC and CGt-DBC) were prepared, and their physicochemical properties and adsorption capacity for polar imidacloprid (IMI) were determined. The results showed that DBC could efficiently bind to Gt by coprecipitation or adsorption, leading to the aggregation of Gt particles, decreasing SSA, and increasing microporous volume, O-containing functional groups and negative charges. A greater effect was observed in CGt-DBC samples than SGt-DBC samples. CGt-DBC samples could more efficiently adsorb IMI than SGt-DBC samples, and CGt-DBC samples obtained the greatest Qmax with 68.4 mg/kg. The sorption mechanisms mainly involved hydrophobic partitioning, H-bonding, cation-π and p/π-π electron donor-acceptor interactions and electrostatic interactions. Additionally, the greater solution pH and Na+ concentration facilitated IMI adsorption on Gt and Gt-DBC samples; however, the Ca2+ solution obtained the opposite result. This effect on IMI adsorption was more pronounced for CGt-DBC samples. Therefore, the findings of this study provide a deep understanding of the interactions between Gt and DBC by adsorption and coprecipitation and their effect on the sorption of organic pollutants in natural soil and water environments.

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Stabilization of dissolvable biochar by soil minerals: Release reduction and organo-mineral complexes formation

Cited by 51 publications

References 66 publications

Significance of Non-DLVO Interactions on the Co-Transport of Functionalized Multiwalled Carbon Nanotubes and Soil Nanoparticles in Porous Media

Significance of Non-DLVO Interactions on the Co-Transport of Functionalized Multiwalled Carbon Nanotubes and Soil Nanoparticles in Porous Media

Combining Rice Straw Biochar With Leguminous Cover Crop as Green Manure and Mineral Fertilizer Enhances Soil Microbial Biomass and Rice Yield in South China

Effects of dissolved black carbon bound with goethite on physicochemical properties and adsorption capacity for imidacloprid: Adsorption versus coprecipitation

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