Effect of slightly cadmium-enriched kenaf straw on the mechanical and thermal properties of cement mortar

Liu, Xin; Wang, Hao; Fei, Zhongyu; Dai, Li; Zhang, Guangpeng; Ai, Shiyun; Guo, Yuan; Wang, Shaojie

doi:10.1080/19648189.2020.1838951

Cited by 12 publications

(3 citation statements)

References 42 publications

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“…The term E g refers to the optical energy band gap of the material whilst the value of n depends on the type of semiconductor which is 1/2 for direct transition semiconductors and 2 for indirect transition semiconductors. 19,20 Tauc plots were made for each photocatalytic film (RC and BFO1 −BFO5) and BFO by assuming that the materials are direct transition. Figures 5(c)-5(i) depict a linear region and therefore the materials obey direct transition behaviour.…”

Section: Resultsmentioning

confidence: 99%

“…The band gap energy was calculated with the aid of the linear curve of a graph plotting ( αhν ) 2 with respect to hν according to

αhν = A {((), italichν goodbreak- E_{g})}^{n}

where α , h , ν and A are respectively the absorption coefficient, Planck constant, frequency of light and a parameter associated with the effective mass allied with the valence and conduction bands of the material. The term E g refers to the optical energy band gap of the material whilst the value of n depends on the type of semiconductor which is 1/2 for direct transition semiconductors and 2 for indirect transition semiconductors 19,20 . Tauc plots were made for each photocatalytic film (RC and BFO1−BFO5) and BFO by assuming that the materials are direct transition.…”

Section: Resultsmentioning

confidence: 99%

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Regenerated cellulose fabricated from oil palm biomass integrated with bismuth ferrite for methyl orange degradation

Hassan,

Mohamad Haafiz,

Weerasooriya

et al. 2023

Polymer International

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The degradation of methyl orange (MO) as an anionic dye was evaluated with the aid of bismuth ferrite (BiFeO3) impregnated regenerated cellulose (RC) nanocomposite films as a photocatalyst. Microcrystalline cellulose (MCC) was used to obtain the RC films using the solution casting method, wherein, BiFeO3 (0‐5 wt%) was added into the MCC dissolution ionic liquid 1‐butyl,3‐methylimidazolium chloride [BMIM]Cl system. The film characterization was accomplished by Fourier transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), UV visible diffuse reflectance spectroscopy (DRS), Bruaneur–Emmett–Teller (BET) surface area, thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and Vibrational sample magnetometry (VSM). The photocatalytic performance of the film was evaluated by treating the catalyst dye mixture under direct sunlight until significant color removal of the dye was observed. The concentration of the dye at each time interval was determined with the aid of UV‐visible spectroscopy. According to the findings in characterization, BiFeO3 showed good compatibility with RC, and the impregnation of BiFeO3 in RC did not alter the physicochemical properties of pure RC. The photocatalyst showed a 90% degradation of 10 ppm MO as maximum with 3 wt% of BiFeO3 loading at pH 2 and the catalytic performance was stabilized for 4 cycles.This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%

“…The band gap energy was calculated with the aid of the linear curve of a graph plotting ( αhν ) 2 with respect to hν according to

αhν = A {((), italichν goodbreak- E_{g})}^{n}

Section: Resultsmentioning

confidence: 99%

Regenerated cellulose fabricated from oil palm biomass integrated with bismuth ferrite for methyl orange degradation

Hassan,

Mohamad Haafiz,

Weerasooriya

et al. 2023

Polymer International

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“…The use of kenaf ber to replace traditional rayon and synthetic bers to produce ber cement-based materials has great advantages, such as being 100% biodegradable, environmentally friendly, and low cost (Elsaid et al, 2011;Mahzabin et al, 2018). Cd enriched in kenaf straw do not affect the strength of the cement mortar, and the leaching concentration of the heavy metal is far below the prescribed safety limit (Liu et al, 2020).…”

Section: Harmless Utilization Of Kenaf Planting In Cd-contaminated Pa...mentioning

confidence: 99%

Phytoremediation with kenaf (Hibiscus cannabinus L.) for cadmium-contaminated paddy soil in southern China: translocation, uptake, and assessment of cultivars

Guo

Xiao

Zhao

et al. 2022

Environ Sci Pollut Res

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Kenaf (Hibiscus cannabinus L.) is suitable for growing in heavy metal-polluted soil for non-food purposes, and can be used as a potential crop to remediate heavy metal-contaminated soil. The main objective of this study was to investigate kenaf phytoextraction of cadmium (Cd), including uptake, translocation, and accumulation differences in tissues among kenaf cultivars. A eld experiment was conducted in a Cd contaminated paddy eld in southern China area with 13 kenaf cultivars in 2015 and 2016. Agronomic performance, Cd concentrations in plant tissues (root, xylem, and phloem), and biomass of different tissues of each cultivar were measured and evaluated. Signi cant differences in Cd concentrations and accumulation among tissues and cultivars were observed. The phloem had the highest Cd accumulation and transfer capability compare with the roots and xylem. Approximately 35 ~ 65g of Cd could be taken up by the aerial parts of different kenaf cultivars within every hectare of soil.The percentage of Cd uptake by the phloem ranged from 47-61% and by the xylem ranged from 38-53%. By evaluating the agronomic traits and Cd bioaccumulation capacity, Fuhong 952, Fuhong 992, and Fuhong R1 were regarded as Cd accumulators for the phytoremediation of Cd-contaminated soil. Our study clearly demonstrated that a signi cant level of Cd in the soil was taken up through the phytoremediation with kenaf. In addition, harmless utilization of kenaf planting in Cd-contaminated paddy soil was discussed.

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Asymmetric large deformation of tunnel induced by groundwater in carbonaceous shale

Zhao

Lei

Jia

et al. 2022

Bull Eng Geol Environ

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Effect of slightly cadmium-enriched kenaf straw on the mechanical and thermal properties of cement mortar

Cited by 12 publications

References 42 publications

Regenerated cellulose fabricated from oil palm biomass integrated with bismuth ferrite for methyl orange degradation

Regenerated cellulose fabricated from oil palm biomass integrated with bismuth ferrite for methyl orange degradation

Phytoremediation with kenaf (Hibiscus cannabinus L.) for cadmium-contaminated paddy soil in southern China: translocation, uptake, and assessment of cultivars

Asymmetric large deformation of tunnel induced by groundwater in carbonaceous shale

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