Cr(VI) detoxification and simultaneous selective recovery of Cr resource from wastewater via photo-chemical extraction using biomass

Yao, Ling; Shen, Zewen; Ji, Zhuoyu; Tang, Duoyue; Zhao, Guixia; Wang, Xiangke

doi:10.1016/j.scib.2022.10.013

Cited by 40 publications

(12 citation statements)

References 15 publications

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“…48 According to previous reports, the Cr VI species could be effectively reduced into Cr III , Cr IV , and Cr V species by hydroxyl groups. 49,50 Therefore, we propose that the Cr VI is reduced to Cr III by the plentiful hydroxyl groups on ZnAl-LDH-D, in which the O atom with more electronegativity donates electrons to Cr VI . The XPS O 1s spectrum further certified the decrease of hydroxyl groups and increase of surface water molecules after the adsorption process (Fig.…”

Section: Resultsmentioning

confidence: 99%

A facile, green and scalable approach to fabricate hierarchical ZnAl-LDH for efficient removal of hexavalent chromium

Liu

Zheng

et al. 2023

Mater. Adv.

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Section: Resultsmentioning

confidence: 99%

A facile, green and scalable approach to fabricate hierarchical ZnAl-LDH for efficient removal of hexavalent chromium

Liu

Zheng

et al. 2023

Mater. Adv.

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“…Photochemical extraction of Cr(VI) and studies on its detoxification are increasing due to its higher toxicity. 175 A recent study investigated the removal of arsenic using the fenton oxidation process. 176 In the pH range of 3 to 9, complete oxidation of arsenic and 95.8% removal were observed.…”

Section: Ion Exchangementioning

confidence: 99%

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Carolin

Kamalesh

Kumar³

et al. 2023

Ind. Eng. Chem. Res.

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Heavy metal pollution results in enormous environmental impacts and significant human health problems. Because of their extreme toxicity and lack of biodegradability, heavy metal ions in water are considered problematic. Although the removal of various heavy metal ions from wastewater has been widely investigated, heavy metal contamination still requires effective and suitable remediation. With special attention on heavy metal removal, this study reviews recent advances, breakthroughs, and potential applications of various physical, chemical, and biological methods. Each treatment method has specific mechanisms of interaction with metal ions, which are described in this review. The discussion in this review leads to the conclusion that adsorption has the best potential which leads to the sustainable remediation of heavy metals. In summary, the review provides a new perspective on heavy metal reduction and encourages the development of innovative strategies for heavy metal removal. The main current problems and prospects in this field are highlighted in this review.

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“…Recently, Yao et al has been reported a new mechanism of photoreduction of Cr(VI) to Cr(V) and the resulted Cr(V) precipitate converted to Cr 2 O 3 through the calcination process. [178,179] Through the utilization of environmental and human mechanical energy, this kind of reductions can be realized based on tribocatalysis. Although, tribocatalysis have advantages over piezocatalysis but still more attention is required in the development of other catalytic applications and short time water treatment based on tribocatalysis.…”

Section: Applications Of Tribocatalysismentioning

confidence: 99%

“…Recently, Yao et al has been reported a new mechanism of photoreduction of Cr(VI) to Cr(V) and the resulted Cr(V) precipitate converted to Cr 2 O 3 through the calcination process. [178,179] Through the utilization of environmental and human mechanical energy, this kind of reductions can be Reproduced from ref. [161] Copyright (2020), with the permission from Elsevier.…”

Section: Applications Of Tribocatalysismentioning

confidence: 99%

Emergence of Non‐photoresponsive Catalytic Techniques for Environmental Remediation and Energy Generation

Sharma

Khan

Kaswan

et al. 2023

Chemistry An Asian Journal

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Catalysis plays a crucial role in all the major applications and challenges in the environment, including energy generation and environmental remediation. Although photocatalysts and electrocatalysts are useful in addressing energy and environmental issues, they have some major drawbacks, such as low efficiency and easy charge recombination which limits their applications. Hence, it is imperative to design and explore new catalytic techniques that include non‐photoresponsive catalysts. In this review, the detailed possibilities, characteristics and prospects of non‐photoresponsive catalysts, such as piezocatalysts, thermocatalysts, pyrocatalysts, and tribocatalysts along with hybrid catalysts are described. The overall mechanism of each catalytic technique and its applications in different fields such as energy generation, environmental remediation, and carbon dioxide reduction are discussed.

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Cr(VI) detoxification and simultaneous selective recovery of Cr resource from wastewater via photo-chemical extraction using biomass

Cited by 40 publications

References 15 publications

A facile, green and scalable approach to fabricate hierarchical ZnAl-LDH for efficient removal of hexavalent chromium

A facile, green and scalable approach to fabricate hierarchical ZnAl-LDH for efficient removal of hexavalent chromium

A Critical Review on the Sustainable Approaches for the Removal of Toxic Heavy Metals from Water Systems

Emergence of Non‐photoresponsive Catalytic Techniques for Environmental Remediation and Energy Generation

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