Mn-embedded porous rubber seed shell biochar for enhanced removal of copper ions and catalytic efficacy of the used adsorbent for hydrogenation of furfural

Fu, Qiuli; Xu, Ximeng; Miao, Rongrong; Wang, Minli; Zhou, Huajing; He, Liang; Guan, Qingqing

doi:10.1016/j.cej.2022.136065

Cited by 15 publications

(4 citation statements)

References 33 publications

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“…The insertion of specific heteroatoms was reported by Marques et al [117] using copper supported onto vineyard pruning waste derived from BC doped with nitrogen. The authors proved the beneficial effect of nitrogen sites in the reduction of furfural to furfuryl alcohol, reaching a conversion of up to 80% at 160 • C. As mentioned above, the insertion of heteroatoms can be performed by processing specific materials such as sewage sludge [118] or even by adsorbing metal ions from contaminated water and using the resulting BC as BCSCs [119].…”

Section: Engineering the Bc For Catalysts Productionmentioning

confidence: 87%

A Comprehensive Overview on Biochar-Based Materials for Catalytic Applications

Bartoli,

Giorcelli,

Tagliaferro

2023

Catalysts

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The development of heterogeneous catalysts is one of the pillars of modern material science. Among all supports, carbonaceous ones are the most popular due to their high surface area, limited cost, and tunable properties. Nevertheless, materials such as carbon black are produced from oil-derived sources lacking in sustainability. Pyrolytic carbon produced from biomass, known as biochar, could represent a valid solution to combine the sustainability and performance of supported catalysts. In this review, we report a comprehensive overview of the most cutting-edge applications of biochar-based catalysts, providing a reference point for both experts and newcomers. This review will provide a description of all possible applications of biochar-based catalysts, proving their sustainability for the widest range of processes.

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Section: Engineering the Bc For Catalysts Productionmentioning

confidence: 87%

A Comprehensive Overview on Biochar-Based Materials for Catalytic Applications

Bartoli,

Giorcelli,

Tagliaferro

2023

Catalysts

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“…The adsorption capacity of Cu(II) was 71.4 mg/g in lobster shell-based biochar via cation exchange, mineral precipitation, and interactions such as functional group complexation and π-electron coordination with biochar [92]. The disadvantages of raw biochar, such as surface hydrophobicity, low number of functional groups, and weak metal binding ability, limit its ability to purify heavy metals wastewater [93]. Therefore, the development of green, simple, and economical modification methods to improve its adsorption capacity for heavy metal ions has become a priority.…”

Section: Carbon-based Adsorbentsmentioning

confidence: 99%

“…Activated carbon is a black solid substance similar to granular or powdered charcoal, a carbonaceous material with highly developed porosity, high specific surface area, and relatively high mechanical strength [97]. Amorphous MnO-embedded porous rubber seed shell biochar prepared by KMnO 4 impregnation-coking activation treatment efficiently purified Cu(II)-containing wastewater in a wide pH range (>2) and increased the equilibrium adsorption capacity of Cu(II) by 3.88 times (200.59 mg/g) [93]. The modification of larch biochar with wood ash as a modifier increased the maximum removal of Cu(II) by 9.66-11.11 times (38.9 ± 2.4 mg/g, 33.8 ± 2.3 mg/g), as the alkaline cations in wood ash increased the cation exchange process occurring on the biochar surface [98].…”

Section: Carbon-based Adsorbentsmentioning

confidence: 99%

Removal of Copper Ions from Wastewater: A Review

Liu¹,

Wang

Cui

et al. 2023

IJERPH

103

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Copper pollution of the world’s water resources is becoming increasingly serious and poses a serious threat to human health and aquatic ecosystems. With reported copper concentrations in wastewater ranging from approximately 2.5 mg/L to 10,000 mg/L, a summary of remediation techniques for different contamination scenarios is essential. Therefore, it is important to develop low-cost, feasible, and sustainable wastewater removal technologies. Various methods for the removal of heavy metals from wastewater have been extensively studied in recent years. This paper reviews the current methods used to treat Cu(II)-containing wastewater and evaluates these technologies and their health effects. These technologies include membrane separation, ion exchange, chemical precipitation, electrochemistry, adsorption, and biotechnology. Thus, in this paper, we review the efforts and technological advances made so far in the pursuit of more efficient removal and recovery of Cu(II) from industrial wastewater and compare the advantages and disadvantages of each technology in terms of research prospects, technical bottlenecks, and application scenarios. Meanwhile, this study points out that achieving low health risk effluent through technology coupling is the focus of future research.

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“…Biomass has attracted extensive research attention due to its distinctive advantages, including resource-rich, clean, and eco-friendly ( 5 ). Bamboos ( 6 ), peanut shells ( 7 ), rubber seed shells ( 8 ), and pinewoods ( 9 ) have been used to produce effective activated carbon, which is used as an adsorbent in many applications and can eliminate the waste of certain resources. However, detailed studies on the adsorption of carotenoids from vegetable oils by activated carbon are rare.…”

Section: Introductionmentioning

confidence: 99%

Preparation of highly efficient p-doped porous camellia shell-based activated carbon and its adsorption of carotenoids in camellia oil

et al. 2022

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The vegetable oil industry is limited by the high cost of the refining process, and the camellia shells (CS) are beneficial to the development of the industry as a biomass raw material for camellia oil decolorization. In this study, CS-based p-doped porous activated carbon (CSHAC) obtained after the pyrolysis of H3PO4-laden CS-hydrochar (CSH) was used for the adsorption of carotenoids in camellia oil. The results showed that the adsorption efficiency of CSHAC for carotenoids was 96.5% compared to 67–87% for commercial decolorizers, and exhibited a fast adsorption rate (20 min). The results of adsorption isotherms indicated that the adsorption of carotenoids on CSHAC occurred through a multi-layer process. Furthermore, the analysis of adsorption kinetics showed that the adsorption of carotenoids by CSHAC was a complex process involving physical and chemical reactions, and chemisorption was the dominant kinetic mechanism. This superior performance of CSHAC in adsorbing carotenoids was attributed to its micro-mesoporous structure, hydrophobicity, and numerous active sites.

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Mn-embedded porous rubber seed shell biochar for enhanced removal of copper ions and catalytic efficacy of the used adsorbent for hydrogenation of furfural

Cited by 15 publications

References 33 publications

A Comprehensive Overview on Biochar-Based Materials for Catalytic Applications

A Comprehensive Overview on Biochar-Based Materials for Catalytic Applications

Removal of Copper Ions from Wastewater: A Review

Preparation of highly efficient p-doped porous camellia shell-based activated carbon and its adsorption of carotenoids in camellia oil

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