Chemically Benign Electrometallurgical Treatment of Waste-Printed Circuit Board in Polyethylene Glycol for Metal Recovery DOI
Kaixin Liu,

Qingguo Le,

Chong Wang

et al.

ACS Sustainable Resource Management, Journal Year: 2024, Volume and Issue: 1(5), P. 868 - 878

Published: April 24, 2024

The rapid growth of the electronic industry and its high turnover product rate have promoted a surge in e-waste generation. An efficient recycling strategy to recover metal content from is essential developing sustainable circular economy. Herein, we report chemically benign mild electrometallurgical approach extract metallic real industrial at room temperature atmospheric pressure poly(ethylene glycol) (PEG), solvent commonly used for commodity medical products. In this system, electrochemically oxidized ions, which are then deposited situ on cathode same reaction cell. extracted over 11 metals samples with good Faradaic efficiency (FE), calculated metal, scored as 65.1% during electrolyte reuse trials. Cu was most abundant recovered stream. PEG showed great robust properties can be reused least six times no sign composition change. Moreover, each trial improved recovery selectivity subsequent carried-over Cu2+ contributed positively depositions─the almost doubled 25.9% 45.2% after times. influence different Cu's also examined. It discovered that Al Fe strong influence, but Sn does not. We examined precious Au, Ag, Pd observed Au well an excellent FE 89.37%, Ag could not efficiently due their precipitations. summary, system offered robust, safe, electrochemical valuable e-waste.

Language: Английский

A critical review of the current progress of plastic waste recycling technology in structural materials DOI Creative Commons
Ehsan Naderi Kalali, Saeid Lotfian, Marjan E. Shabestari

et al.

Current Opinion in Green and Sustainable Chemistry, Journal Year: 2023, Volume and Issue: 40, P. 100763 - 100763

Published: Feb. 4, 2023

One of the main environmentally threatening factors is plastic waste which generates in great quantity and causes severe damage to both inhabitants environment. Commonly, generated on land ends up water bodies, resulting detrimental solid impacts aquatics via poisoning flooding marine ecosystem. Exploring various approaches convert wastes into new products known as an efficient way manage them enhance sustainability environment, discussed this article. Moreover, limitation application for construction purposes also considered. It wind that usage will significantly rectify our environment be regarded a trustworthy source materials applying conventional such concrete asphalt.

Language: Английский

Citations

137
Metal–Organic Framework-Based Materials for Wastewater Treatment: Superior Adsorbent Materials for the Removal of Hazardous Pollutants DOI Creative Commons
Harjot Kaur, Nishu Devi, Samarjeet Singh Siwal

et al.

ACS Omega, Journal Year: 2023, Volume and Issue: 8(10), P. 9004 - 9030

Published: Feb. 28, 2023

In previous years, different pollutants, for example, organic dyes, antibiotics, heavy metals, pharmaceuticals, and agricultural have been of note to the water enterprise due their insufficient reduction during standard wastewater processing methods. MOFs found potential toward management. This Review focused on synthesis process (such as traditional, electrochemical, microwave, sonochemical, mechanochemical, continuous-flow spray-drying method) MOF materials. Moreover, properties materials discussed in detail. Further, materials' applications treatment removal metal ions, waste) discussed. Additionally, we compared performances some typical MOFs-based with those other commonly used Finally, study's current challenges, future prospects, outlook highlighted.

Language: Английский

Citations

103
Hybrid Semiconductor Photocatalyst Nanomaterials for Energy and Environmental Applications: Fundamentals, Designing, and Prospects DOI Creative Commons
Kirti Bhushan Mishra, Nishu Devi, Samarjeet Singh Siwal

et al.

Advanced Sustainable Systems, Journal Year: 2023, Volume and Issue: 7(8)

Published: June 27, 2023

Abstract The degradation of fossil fuel and worse environmental conditions leads to the emergence hybrid semiconductor (SC) nanomaterials as photocatalysts. Hybrid SCs have interesting physical, mechanical, optical, chemical, electronic characteristics. Due these properties’ absorption light transfer charge takes place frequently hence act multifunctional surface. These materials should be attributed their optical electrical properties surfaces in energy production, generation, remediation, sensing, etc. When combine with noble, non‐noble metal, metal oxide, some carbon‐based materials, they explore wide applications various fields. Photocatalysis is an effective sustainable technology reduce or fix concerns corrosion problems. By going through extensive literature review, few topics are focused on designing working mechanisms materials. In this way, present review article explains properties, surface‐interface engineering, design, (energy environmental) nanomaterials, emphasizing photocatalytic nature. Additionally, appealing directions, scientific challenges, reasons behind poor stability SC photocatalyst for discussed. Finally, concluding remarks current challenges future prospects domain highlighted.

Language: Английский

Citations

57
Waste-to-chemicals: Green solutions for bioeconomy markets DOI Creative Commons
Kirti Bhushan Mishra, Samarjeet Singh Siwal,

S. Chandra Nayaka

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 887, P. 164006 - 164006

Published: May 10, 2023

In the fast-developing time, accumulation of waste materials is always in an uptrend due to population increases and industrialization. This excessive harms ecosystem human beings by depleting water quality, air biodiversity. Further, use fossil fuel problem-related global warming, greenhouse gases are major challenge front world. Nowadays, scientists researchers more focused on recycling utilizing different like a municipal solid (MSW), agro-industrial etc. The added environment converted into valuable products or green chemicals using chemistry principles. These fields production energy, synthesis biofertilizers textile industry fulfil need present Here we focus circular economy considering value bioeconomic market. For this purpose, sustainable development bio-economy most promising alternative, which possible incorporating latest techniques microwave-based extraction, enzyme immobilization-based removal, bioreactor-based removal etc., for valorization food materials. conversion organic vermicomposting also realised earthworms. review article focuses various types (such as MSW, agricultural, industrial, household waste, etc.), management with current glitches expected solutions that have been discussed. Furthermore, highlighted their safe contribution role

Language: Английский

Citations

55
Sustainable technologies for the recycling and upcycling of precious metals from e-waste DOI
Jinsong Xia, Ahmad Ghahreman

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 916, P. 170154 - 170154

Published: Jan. 18, 2024

Language: Английский

Citations

18
Cellulose‐based smart materials: Novel synthesis techniques, properties, and applications in energy storage and conversion devices DOI Creative Commons

Pariksha Bishnoi,

Samarjeet Singh Siwal, Vinod Kumar

et al.

Electron, Journal Year: 2024, Volume and Issue: 2(2)

Published: May 1, 2024

Abstract There has been a significant scope toward the cutting‐edge investigations in hierarchical carbon nanostructured electrodes originating from cellulosic materials, such as cellulose nanofibers, available natural and bacterial cellulose. Elements of energy storage systems (ESSs) are typically established upon inorganic/metal mixtures, carbonaceous implications, petroleum‐derived hydrocarbon chemicals. However, these conventional substances may need help fulfilling ever‐increasing needs ESSs. Nanocellulose grown significantly an impressive 1D element due to its availability, eco‐friendliness, recyclability, structural identity, simple transformation, dimensional durability. Here, this review article, we have discussed role overview cellulose‐based hydrogels Additionally, extraction sources solvents used for dissolution detail. Finally, properties (such self‐healing, transparency, strength swelling behavior), applications flexible batteries, fuel cells, solar supercapacitors carbon‐based derived cellulose) devices conclusion with existing challenges updated recent findings.

Language: Английский

Citations

11
E-waste recycling and utilization: A review of current technologies and future perspectives DOI
Kirti Bhushan Mishra, Samarjeet Singh Siwal, Vijay Kumar Thakur

et al.

Current Opinion in Green and Sustainable Chemistry, Journal Year: 2024, Volume and Issue: 47, P. 100900 - 100900

Published: Feb. 28, 2024

Language: Английский

Citations

10
Lemon peel activated carbon: A sustainable solution for lead ion removal from E-waste bioleachate DOI Creative Commons
R. Divahar,

T. Meenambal,

J. Senophiyah Mary

et al.

Sustainable Chemistry for the Environment, Journal Year: 2024, Volume and Issue: 6, P. 100094 - 100094

Published: April 12, 2024

In the investigation of sustainable materials, this study explores viability employing Lemon Activated Carbon (LAC) for bio-adsorption lead ions from e-waste bio-leachate. The novelty work lies in comprehensive analyses LAC characteristics, including particle size, surface area, zeta potential, and morphology. morphology adsorption capacity were measured using scanning electron microscope (SEM) atomic absorption spectroscopy (AAS), confirming efficacy removing bio-leachate solutions. area analysis unveiled that LAC, with a 603.7 m²/g achieved through thermal activation, exhibited competitive ion despite its lower compared to commercial-activated carbon (990 m²/g). Additionally, both CAC displayed pseudo-second-order kinetics adsorption, Langmuir isotherm model fitting well (R2 = 0.9879) LAC. amorphous nature confirmed by X-ray diffraction (XRD) FTIR revealed functional groups, highlighting their suitability adsorption. comprised 75.82% maximum at pH 6. optimized operating parameters 89.16% removal These findings highlight innovative utilization lemon peel-derived activated as environmentally friendly solution mitigating impacts bio-leachate, thus contributing advancement environmental remediation techniques.

Language: Английский

Citations

8
Recent advancements in aqueous electrowinning for metal recovery: A comprehensive review DOI
Zuowei Liu, Xueyi Guo, Zhipeng Xu

et al.

Minerals Engineering, Journal Year: 2024, Volume and Issue: 216, P. 108897 - 108897

Published: Aug. 3, 2024

Language: Английский

Citations

8
Recent Progress in Turning Waste into Catalysts for Green Syntheses DOI Creative Commons
Konstantin Wink,

Ingo Hartmann

Sustainable Chemistry, Journal Year: 2024, Volume and Issue: 5(1), P. 27 - 39

Published: March 16, 2024

The recycling of catalysts has emerged as a key solution to address environmental pollution and the scarcity natural resources. This dynamic is further reinforced by growing industrial demand for urgent need transition more sustainable production methods. In context chemical transformations, direct reuse recycled applications in particular represents an elegant route towards greener syntheses. this article, we review recent advancements homogeneous heterogeneous since 2020, emphasizing utilization waste-derived reactions. particular, consider three primary sources waste: electronic waste, spent lithium-ion batteries, wastewater. For each these waste streams, different extraction methods are explored their effectiveness obtaining suitable broad spectrum These presented studies emphasize potential contribute waste-efficient future.

Language: Английский

Citations

7