Dual-purpose applications of magnetic phase-change microcapsules with crystalline-phase-tunable CaCO3 shell for waste heat recovery and heavy metal ion removal

Zhang, Meng; Shen, Haohai; Qian, Zhiqiang; Liu, Huan; Tian, Donglin; Wang, Xiaodong

doi:10.1016/j.est.2022.105672

Cited by 15 publications

(5 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…37,38 Many studies have identied CaCO 3 as a safe and environmentally promising material for removing dyes and heavy metals with acceptable efficiency. [39][40][41][42][43][44][45][46] Previous studies have shown CaCO 3 as a chief constituent of MSW providing additional motivation for exploring it here as a novel dye adsorbent material. 47 Finally, this work presents data to assess the feasibility of MSW as an eco-friendly adsorbent for the water removal of CR and MB under several conditions to reduce their environmental impact and promote sustainability.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Upcycling of sugar refining mud solid waste as a novel adsorbent for removing methylene blue and Congo red from wastewater

Reda Aly,

El-Demerdash,

Sadik

et al. 2024

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…37,38 Many studies have identified CaCO 3 as a safe and environmentally promising material for removing dyes and heavy metals with acceptable efficiency. 39–46 Previous studies have shown CaCO 3 as a chief constituent of MSW providing additional motivation for exploring it here as a novel dye adsorbent material. 47…”

Section: Introductionmentioning

confidence: 99%

Upcycling of sugar refining mud solid waste as a novel adsorbent for removing methylene blue and Congo red from wastewater

Reda Aly,

El-Demerdash,

Sadik

et al. 2024

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Adsorption is a method that is widely used because this method is safe, does not provide side effects that endanger health, and does not require complicated and inexpensive equipment. The first step to an effective adsorption process is choosing an adsorbent with high selectivity and capacity [6]. The adsorbent used can be in the form of disposal or utilization of biological waste such as mussel shells, where the shells contain 50-90% calcium carbonate (CaCO3) compounds, 0.69% silica dioxide (SiO2), 0.64% magnesium oxide (MgO), sodium oxide (Na2O) 0.98% and sulfite (SO3) 0.72%.…”

Section: Introductionmentioning

confidence: 99%

“…CaCO3, which undergoes the calcination process, will produce calcite (CaO). The resulting calcite can be used as an adsorbent to adsorb heavy metals [6], [7]. Shellfish production in Indonesia from 2002 to 2006 increased successively, namely by 7 tons, 2,869 tons, 12,991 tons, 16,348 tons, and 18,896 tons [8].…”

Section: Introductionmentioning

confidence: 99%

Kinetics study of copper (Cu) and chromium (Cr) adsorption using green mussel shells (Perna viridis) adsorbent

2023

View full text Add to dashboard Cite

Research has been carried out on making green mussel shell adsorbents to absorb Cu and Cr metals. The study of making green mussel shell adsorbents was carried out by thermal activation using a furnace. The results of the activated adsorbent were characterized using FTIR and SEM-EDX. Furthermore, the adsorbent was used to absorb Cu and Cr metal by using several variations, namely variations in the temperature of the adsorbent activation, adsorbent weight, pH, and contact time, and knowing the kinetic model by determining the reaction order. The results obtained from the characterization of green mussel shells contain elements of Ca, about 67.56% at an activation temperature of 500 °C and 67.34% at an activation temperature of 900 °C. The optimum conditions for Cu metal adsorption by green shell adsorbent were obtained at an activation temperature of 500 °C, using an adsorbent of 1 gram under pH 10 and a contact time of 40 minutes. Whereas for Cr metal absorption, the activation temperature was 900 °C, the mass used was 1.5 grams with pH 7 and the contact time was 40 minutes. The adsorption kinetics model of green mussel shells adsorbent on Cu and Cr metals followed pseudo-second-order.

show abstract

“…These functional SLPCM microcapsules present great potential in developing an advanced renewable energy infrastructure. In our previous study, a type of Fe 3 O 4 /CaCO 3 -based, PW microcapsule system was designed for wastewater recovery [ 17 , 18 ]. With its high latent heat capacity, the encapsulated PW can absorb and store a large amount of waste heat.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional BiOI/SiO2/Fe3O4@n-Docosane Phase-Change Microcapsules for Waste Heat Recovery and Wastewater Treatment

2023

Self Cite

View full text Add to dashboard Cite

Waste heat and organic contaminants are significant issues in water pollution, which has caused ecological problems and threatened human health. To provide an effective solution for wastewater recovery, we designed a novel type of multifunctional phase-change microcapsule. This type of microcapsule was synthesized using n-docosane as a core and a SiO2/Fe3O4 composite as a base shell through in situ interfacial polycondensation with the assistance of a Fe3O4 nanoparticle as a Pickering emulsion stabilizer, followed by the deposition of BiOI nanosheets on the surface of the SiO2/Fe3O4 composite shell. Benefiting from the n-docosane core, the resultant microcapsules obtained phase-change enthalpies of 46.8–115.7 J/g for absorbing waste heat from wastewater. The deposited BiOI nanosheets promoted photocatalysis for the microcapsules to degrade organic contaminants in wastewater. Owing to the magnetic response of the Fe3O4 nanoparticles, the separability and recyclability of the microcapsules were improved significantly by magnetic separation. Moreover, the microcapsules demonstrate outstanding phase-change reversibility, thermal cycling stability, and shape stability due to the tight SiO2/Fe3O4 composite shell. This study provides a promising approach for designing and developing multifunctional phase-change microcapsules for waste heat recovery and wastewater treatment.

show abstract

Dual-purpose applications of magnetic phase-change microcapsules with crystalline-phase-tunable CaCO3 shell for waste heat recovery and heavy metal ion removal

Cited by 15 publications

References 63 publications

Upcycling of sugar refining mud solid waste as a novel adsorbent for removing methylene blue and Congo red from wastewater

Upcycling of sugar refining mud solid waste as a novel adsorbent for removing methylene blue and Congo red from wastewater

Kinetics study of copper (Cu) and chromium (Cr) adsorption using green mussel shells (Perna viridis) adsorbent

Multifunctional BiOI/SiO2/Fe3O4@n-Docosane Phase-Change Microcapsules for Waste Heat Recovery and Wastewater Treatment

Contact Info

Product

Resources

About