Carboxymethyl cellulose stabilized ZnO/biochar nanocomposites: Enhanced adsorption and inhibited photocatalytic degradation of methylene blue

Wang, Shengsen; Zhou, Yanxia; Han, Shuwen; Wang, Nong; Yin, Wang; Yin, Xianqiang; Gao, Bin; Wang, Xiaozhi; Wang, Jun

doi:10.1016/j.chemosphere.2018.01.022

Cited by 72 publications

(30 citation statements)

References 29 publications

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“…In addition to the above three modification methods, modification methods such as low-temperature plasma [72,73], organic matter grafting [74], and ozone oxidation [32] have also been studied. Low-temperature plasma modification means that plasmas generated by glow, microwave, and corona were collided with C=C on the surface of biochar, and plasmas were oxidized to the oxygen-containing functional group, and enhanced the polarity of biochar [75].…”

Section: Other Modification Methodsmentioning

confidence: 99%

Preparation and Modification of Biochar Materials and their Application in Soil Remediation

et al. 2019

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As a new functional material, biochar was usually prepared from biomass and solid wastes such as agricultural and forestry waste, sludge, livestock, and poultry manure. The wide application of biochar is due to its abilities to remove pollutants, remediate contaminated soil, and reduce greenhouse gas emissions. In this paper, the influence of preparation methods, process parameters, and modification methods on the physicochemical properties of biochar were discussed, as well as the mechanisms of biochar in the remediation of soil pollution. The biochar applications in soil remediation in the past years were summarized, such as the removal of heavy metals and persistent organic pollutants (POPs), and the improvement of soil quality. Finally, the potential risks of biochar application and the future research directions were analyzed.

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Section: Other Modification Methodsmentioning

confidence: 99%

Preparation and Modification of Biochar Materials and their Application in Soil Remediation

et al. 2019

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“…In general, many types of nanometallic oxides/hydroxides, such as aforementioned nano-Fe 3 O 4 and BiFeO 3 , have not only the functional characteristics of nanoparticles, but also the unique physical-chemical properties, such as the ferromagnetism and catalytic capacity (Zhang et al 2016;Rajapaksha et al 2016;Wang et al 2018b;Chen et al 2018b;Sun et al 2015). The combination of BCs and nanometal/ nanometallic oxides/hydroxide may endow BCs extra functionalities or strengthen its own advantages through synergetic effect.…”

Section: Nanometallic Oxides/hydroxide Biochar Compositesmentioning

confidence: 99%

“…The author attributed the significant modification in morphological and physical-chemical properties to the synergetic effect of the CEM method. Despite above CuCl 2 and MgCl 2 , various metallic salts, such as AlCl 3 , CaCl 2 , MnCl 2 and ZnCl 2 , have also been widely used to pretreat biomass in the production of biochar-based metallic oxides/ hydroxide composites (Wang et al 2018b;Fang et al 2015;Wang et al 2015c;Chemerys et al 2018;Li et al 2018e). The resulting composites usually exhibit dramatic changes in morphological and physical-chemical properties, leading to better performance in environmental treatment.…”

Section: Nanometallic Oxides/hydroxide Biochar Compositesmentioning

confidence: 99%

Biochar-based materials and their applications in removal of organic contaminants from wastewater: state-of-the-art review

Huang

Song

Chen

et al. 2019

Biochar

289

104

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As a class of famous carbon materials, biochars (BCs) and their derivative materials with excellent physicochemical properties and diversified functionalities present great potential in wastewater treatment fields. This review focuses on the latest development in reported biochar-based materials as superior adsorbents or catalysts for removing harmful organic contaminants from wastewater. The construction and properties of biochar-based materials are briefly introduced at the beginning. As one of the major factors affecting the properties of BCs, the wide diversity of feedstocks, such as agricultural and forest residues, industrial by-products as well as municipal wastes, endows BCs different chemical compositions and structures. Woody and herbaceous BCs usually have higher carbon contents, larger surface areas and strong aromaticity, which is in favor of the organic contaminant removal. Driven by the desire of more cost-effective materials, several types of biochar-based hybrid materials, such as magnetic BC composites (MBC), nanometal/nanometallic oxides/hydroxide BC composites and layered nanomaterial-coated BCs, as well as physically/chemically activated BCs, have also been developed. With the help of foreign materials, these types of hybrid BCs have excellent capacities to remove a wide range of organic contaminants, including organic dyestuff, phenols and chemical intermediates, as well as pharmaceutically active compounds, from aquatic solutions. Depending on the different types of biochar-based materials, organic contaminants can be removed by different mechanisms, such as physical adsorption, electrostatic interaction, π-π interaction and Fenton process, as well as photocatalytic degradation. In summary, the low cost, tunable surface chemistry and excellent physical-chemical properties of BCs allow it to be a potential material in organic contaminant removal. The combination of BCs with foreign materials endows BCs more functionalities and broader development opportunities. Considering the urgent demand of practical wastewater treatment, we hope more researches will focus on the applications and commercialization of biochar-based materials.

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“…In addition, the combination of biomaterials is a promising area of research. For instance, Wang et al prepared ZnO/biochar nanocomposites stabilized by carboxymethyl cellulose to enhance adsorption and photocatalytic degradation of methylene blue 17 . Yuanji Shi et al used chitosan-modified biochar to remove dissolved organics matter from biotreated coking wastewater 18 .…”

Section: Introductionmentioning

confidence: 99%

Preparation and bacteriostatic research of porous polyvinyl alcohol / biochar / nanosilver polymer gel for drinking water treatment

Zhao

Zhang

et al. 2021

Sci Rep

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Microbial contamination in drinking water has become an important threat to human health. There is thus an urgent need to develop antibacterial materials to treat drinking water. Here, porous silver-loaded biochar (C–Ag) was prepared using corn straw as the substrate and silver as the antibacterial agent. C–Ag was then uniformly distributed in polyvinyl alcohol gel beads of eluted calcium carbonate to prepare p-PVA/C–Ag antibacterial composite. The polymer composites were tested by FT-IR, XRD, SEM and TG-DSC. The results showed that C–Ag was more evenly distributed in the PVA gel spheres. Antibacterial experiments showed that p-PVA/C–Ag greatly inhibited Escherichia coli. Practical application tests revealed that p-PVA/C–Ag showed high and sustained bactericidal inhibition and reusability. Generally, p-PVA/C–Ag composite shows high potential to be applied to drinking water treatment.

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Carboxymethyl cellulose stabilized ZnO/biochar nanocomposites: Enhanced adsorption and inhibited photocatalytic degradation of methylene blue

Cited by 72 publications

References 29 publications

Preparation and Modification of Biochar Materials and their Application in Soil Remediation

Preparation and Modification of Biochar Materials and their Application in Soil Remediation

Biochar-based materials and their applications in removal of organic contaminants from wastewater: state-of-the-art review

Preparation and bacteriostatic research of porous polyvinyl alcohol / biochar / nanosilver polymer gel for drinking water treatment

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