Synthesis of silica and carbon-based nanomaterials from rice husk ash by ambient fiery and furnace sweltering using a chemical method

Sharma, Sanjeev K.; Sharma, Gaurav; Sharma, Alpana; Bhardwaj, Kirti; Preeti, Km.; Singh, K.; Kumar, Ambuj; Pal, Vinod Kumar; Choi, Eun Ha; Singh, Satendra Pal; Kaushik, N. K.

doi:10.1016/j.apsadv.2022.100225

Cited by 24 publications

(11 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The characteristic peaks at 472 cm –1 belong to the asymmetric vibration of Al–O and O–Si–O. 51 Meanwhile, the characteristic peaks at 997 and 1433 cm –1 belong to the asymmetric vibration of Si–O–Si and O–C–O, 52 respectively. The position and intensity of the three characteristic peaks changed in various sizes when BFS, RM, and As-containing sludge were compounded in different proportions.…”

Section: Resultsmentioning

confidence: 99%

“…The infrared spectra of A0-C0-As0 (a), A10-C0-As0 (b), A10-C0-As3 (c), and A10-C10-As3 (d) are shown in Figure . The characteristic peaks at 472 cm –1 belong to the asymmetric vibration of Al–O and O–Si–O . Meanwhile, the characteristic peaks at 997 and 1433 cm –1 belong to the asymmetric vibration of Si–O–Si and O–C–O, respectively.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Long-Term Stabilization/Solidification of Arsenic-Contaminated Sludge by a Blast Furnace Slag-Based Cementitious Material: Functions of CaO and NaCl

Quan

Yang

et al. 2022

ACS Omega

View full text Add to dashboard Cite

Arsenic is a kind of element widely distributed in the environment that may pose a threat to the ecological environment and human health, while effective remediation and sustainable utilization of arsenic-containing sludge is a challenge. Based on stabilization/solidification blast furnace slag-based cementitious materials (BCMs), this study innovatively proposes to improve the arsenic (As) solidification efficiency and long-term stability by using the activation mode of CaO and NaCl. The effects of different factors on the properties of the BCM were measured by unconfined compressive strength (UCS) tests, X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. The long-term stability and safety of the BCM were verified by leaching toxicity and improved three stage continuous extraction method (BCR) tests. Experimental results show that the addition of CaO provides conditions for the formation of ettringite (AFt), thus promoting the crystal growth of AFt. The addition of NaCl can promote the formation of Cl-AFt and play a good long-term stabilizing role. When the content of the alkali activator is 10% and the modulus is 1.0, the contents of CaO and NaCl are 10 and 1%, respectively. The BCM has the best efficiency in terms of UCS and As solidification. The UCS at 28 days was 5.4 MPa, and the leaching concentration of As was 0.309 mg/L, and the As solidification efficiency was up to 99.9%. In the improved BCR test, the proportions of residual and oxidizable states of arsenic increased by 19.6 and 13.5%, respectively, and the stability of heavy metals improved. These findings show that the BCM has good long-term stability and safety. Overall, this study shows that CaO and NaCl significantly increase the output of AFt and achieve the purpose of efficient and stable solidification of As by the BCM.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Long-Term Stabilization/Solidification of Arsenic-Contaminated Sludge by a Blast Furnace Slag-Based Cementitious Material: Functions of CaO and NaCl

Quan

Yang

et al. 2022

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Many researchers have significantly focused towards improving the remarkable features of these batteries. Carbon-based nanomaterials, such as, the graphene, carbon nanotubes, and graphene oxide have shown a great potential as a cathode material in energy storage devices [83][84][85].…”

Section: Lithium Titanate (Li-titanate)mentioning

confidence: 99%

“…Carbon-based nanomaterials, such as graphene, carbon nanotubes, and graphene oxide, have shown great potential as cathode materials in energy storage devices. [85][86][87] The limitation of traditional cathodes (layered, spinel, and olivine) has limited the capacity mismatch with that of silicon anodes (B1000 mA h g À1 ). Thus, to fill this gap, Li-rich oxide (LRO) materials have emerged as a potential alternative to replace future cathodes due to their high theoretical capacity (B300 mA h g À1 ) and high specific energy (B900 W h kg À1 ).…”

Section: Electrodes For Li-ion Batteriesmentioning

confidence: 99%

See 1 more Smart Citation

Progress in electrode and electrolyte materials: path to all-solid-state Li-ion batteries

Sharma

Sharma²,

Gaur

et al. 2022

Energy Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

Enhanced energy density of high entropy alloy (Fe‐Co‐Ni‐Cu‐Mn) and green graphene hybrid supercapacitor

Mohanty,

Chowde Gowda,

Gakhad

et al. 2024

Energy Storage

View full text Add to dashboard Cite

Given the growing demand for new materials for supercapacitor applications, high entropy alloys (HEAs) are being extensively investigated. They are an efficient alternative to existing energy sources due to their synergistic contribution from individual element. We demonstrate the development of nanostructured HEA (FeCoNiCuMn) as a cathode material with specific capacitance (Cs) of ~388 F g−1 (5 mV s−1). As anode material, green graphene (rice straw biochar) synthesized using pyrolysis shows a maximum Cs of ~560 F g−1 at similar scan rate (5 mV s−1). A hybrid asymmetric liquid state device was assembled using the FeCoNiCuMn nanostructured HEA and green graphene as electrodes. Utilizing the green source, the device provided a high Cs of 83.22 F g−1 at 2 A g−1. The specific energy of the device was 33.4 Wh kg−1 and specific power of 1.7 kW kg−1. The electrochemical behavior of each element in the high entropy composition was studied through post X‐ray photoelectron spectroscopy and scanning electron microscopic analysis. The chemical behavior of FeCoNiCuMn is further investigated using DFT studies. The enhanced electrochemical properties and synergistic contribution of each element of the HEA is studied via d‐band theory. The current study can be utilized to develop asymmetric hybrid supercapacitors as environmental friendly energy source.

show abstract

Synthesis of silica and carbon-based nanomaterials from rice husk ash by ambient fiery and furnace sweltering using a chemical method

Cited by 24 publications

References 53 publications

Long-Term Stabilization/Solidification of Arsenic-Contaminated Sludge by a Blast Furnace Slag-Based Cementitious Material: Functions of CaO and NaCl

Long-Term Stabilization/Solidification of Arsenic-Contaminated Sludge by a Blast Furnace Slag-Based Cementitious Material: Functions of CaO and NaCl

Progress in electrode and electrolyte materials: path to all-solid-state Li-ion batteries

Enhanced energy density of high entropy alloy (Fe‐Co‐Ni‐Cu‐Mn) and green graphene hybrid supercapacitor

Contact Info

Product

Resources

About