Elucidation of preferential elimination of Cr(VI) via bioinspired adsorbents: a comparative assessment

Banerjee, Soumya; Barman, Sanghamitra; Halder, Gopinath

doi:10.1007/s12665-019-8117-3

Cited by 6 publications

(4 citation statements)

References 45 publications

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“…With the presence of high content of O-containing functional groups and pore volume, steam activated biochar possessed higher SA than its counterpart under CO 2 activation [90]. This ideal SA in biochar was observed to significantly improve the adsorption for Cr(Ⅵ) [91,92].…”

Section: Physical Modificationmentioning

confidence: 94%

“…Moreover, other redox sensitive elements such as Fe, Mn, and As should be taken into consideration due to the redox sensitivity. Surprisingly, Mn(II) inhibited the removal of Cr(VI) [92] while iron ions showed a negligible impact on Cr(VI) removal by pristine biochar [178]. As(III) oxidation was found to facilitate the Cr(VI) reduction of dissolved biochar via electron donation [31].…”

Section: Photocatalystmentioning

confidence: 96%

“…The ball milling process stimulated the formation of the iron carbide phase, exposition of functional groups, and shrinkage of composite hydrodynamic diameter, which resulted in the improvement of Cr(VI) removal rate [81]. The activation of steam increased the SA and converted the dominant functional groups from aldehydes acid into ethers, esters, and carbonyls, thereby increasing the adsorption of Cr(VI) [171].…”

Section: Modified Biochar As Adsorbentmentioning

confidence: 99%

“…As(III) oxidation was found to facilitate the Cr(VI) reduction of dissolved biochar via electron donation [31]. In contrast, As(V) inhibited the Cr(VI) removal [92]. In the binary system of the Cr species and interfering organic compounds, different patterns of Cr removal have been observed.…”

Section: Photocatalystmentioning

confidence: 99%

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Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

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Section: Physical Modificationmentioning

confidence: 94%

Section: Photocatalystmentioning

confidence: 96%

Section: Modified Biochar As Adsorbentmentioning

confidence: 99%

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Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

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Yang

et al. 2021

Journal of Hazardous Materials

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A comprehensive review on synthesis and application of nanocomposites for adsorption of chromium: status and future prospective

Katiyar,

Katiyar

2023

Appl Water Sci

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The presence of heavy metals in water bodies can cause major problems for human, plant, and animal life. Excessive amounts or over the prescribed limits of heavy metals in water bodies usually contaminates the water, this type of water is called polluted water and this whole process is known as water pollution. Regular consumption of heavy metal-contaminated water above prescribed limits can cause various diseases and sometimes even lead to death. Heavy metals like chromium, arsenic, lead, mercury etc. are more toxic and are easily found in water bodies due to anthropogenic and natural activities. The presence of these heavy metals in water even in tiny concentrations is dangerous to human and animal health. Due to its highly toxic nature, it is paramount to remove these pollutants from water bodies before human use. Adsorption is the best technique to remove these pollutants from wastewater based on cost, efficiency, and feasibility. For the adsorption process, a variety of adsorbent materials have been synthesized by researchers in the past few decades, and yet it remains a challenge for researchers and scientists to synthesize a cost-effective and highly efficient adsorbent. In this prospect, water treatment by adsorption process, nano-composites are emerging materials that show excellent adsorption characteristics due to their outstanding material properties, manageable and low-cost production, and excellent adsorption capacity for chromium adsorption from wastewater. The various nanocomposite adsorbent material prepared by different types of nanoparticles that are supported or embedded on biomass/biochar/graphene/polymer/etc. and used for chromium adsorption have been incorporated. The physio-chemical and structural characteristics of nanocomposites are covered in this review paper. Furthermore, the impact of various adsorption conditions, together with their benefits and drawbacks, on the effectiveness of water treatment are discussed. This thorough review concludes with a summary and some ideas about novel strategies and difficulties in the investigation of advanced and hybrid nanocomposite materials used to remove Cr(VI) from wastewater.

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Insights into the removal of Cr(VI) by a biochar–iron composite from aqueous solution: Reactivity, kinetics and mechanism

Liu

Dong

Lin

et al. 2021

Environmental Technology & Innovation

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Elucidation of preferential elimination of Cr(VI) via bioinspired adsorbents: a comparative assessment

Cited by 6 publications

References 45 publications

Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

A comprehensive review on synthesis and application of nanocomposites for adsorption of chromium: status and future prospective

Insights into the removal of Cr(VI) by a biochar–iron composite from aqueous solution: Reactivity, kinetics and mechanism

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