A comprehensive review on the synthesis, performance, modifications, and regeneration of activated carbon for the adsorptive removal of various water pollutants

Srivastava, Ashish; Gupta, B. R.; Majumder, Abhradeep; Gupta, Ashok Kumar; Nimbhorkar, Shripad K.

doi:10.1016/j.jece.2021.106177

Cited by 84 publications

(27 citation statements)

References 266 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where C 0 and C i are absorption densities before and after the photocatalytic reaction. The reaction rate constant, reflecting changes in the dye concentration during the reaction, was estimated according to the Ber-Lambert law (7):…”

Section: Experimental Partmentioning

confidence: 99%

“…In turn, their accumulation in the aqueous environments of wastewater can have a negative impact on the environment, as well as cause mutational effects on flora and fauna with prolonged interaction and large concentrations of accumulated dyes. All this requires new solutions in the field of disposal and neutralization of waste organic dyes, as well as their neutralization and decomposition into harmless components [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum

et al. 2022

View full text Add to dashboard Cite

The aim of this work is to study the effect of lanthanum doping on the phase formation processes in ceramics based on CaTiO3, as well as to evaluate the effectiveness of the ceramics as photocatalysts for the decomposition of the organic dye Rhodamine B. The methods used were scanning electron microscopy to evaluate the morphological features of the synthesized ceramics, X-ray diffraction to determine the phase composition and structural parameters, and UV-Vis spectroscopy to determine the optical properties of the ceramics. During the experiments it was found that an increase in the lanthanum dopant concentration from 0.05 to 0.25 mol leads to the formation of the orthorhombic phase La0.3Ca0.7TiO3 and the displacement from the ceramic structure of the impurity phase TiO2, which presence is typical for the synthesized ceramics by solid-phase synthesis. On the basis of the data of the X-ray phase analysis the dynamics of phase transformations depending on concentration of lanthanum was established: CaTiO3/TiO2 → CaTiO3/La2TiO5 → CaTiO3/La0.3Ca0.7TiO3 → La0.3Ca0.7TiO3. During the determination of photocatalytic activity it was found that the formation of La0.3Ca0.7TiO3 phase leads to an increase in the decomposition rate as well as the degree of mineralization.

show abstract

Section: Experimental Partmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In the case of chemical activation, the main part of the synthesis involves mixing with an activation agent and thermal treatment in inert atmosphere. The most widely used activation agents are strong acids like H 3 PO 4 , strong bases like NaOH and KOH, or salts such as ZnCl 2 and FeCl 3 [ 15 , 18 ]. Modern and more sustainable synthesis processes have been developed in recent years, such as hydrothermal or microwave-assisted carbonization/activation [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…The most widely used activation agents are strong acids like H 3 PO 4 , strong bases like NaOH and KOH, or salts such as ZnCl 2 and FeCl 3 [ 15 , 18 ]. Modern and more sustainable synthesis processes have been developed in recent years, such as hydrothermal or microwave-assisted carbonization/activation [ 18 , 19 ]. Another key aspect of APCs is that they can be obtained from residual biomass or other organic wastes (e.g., plastics, spent tires, etc.)…”

Section: Introductionmentioning

confidence: 99%

Carbon-Based Nanocatalysts (CnCs) for Biomass Valorization and Hazardous Organics Remediation

et al. 2022

View full text Add to dashboard Cite

The continuous increase of the demand in merchandise and fuels augments the need of modern approaches for the mass-production of renewable chemicals derived from abundant feedstocks, like biomass, as well as for the water and soil remediation pollution resulting from the anthropogenic discharge of organic compounds. Towards these directions and within the concept of circular (bio)economy, the development of efficient and sustainable catalytic processes is of paramount importance. Within this context, the design of novel catalysts play a key role, with carbon-based nanocatalysts (CnCs) representing one of the most promising class of materials. In this review, a wide range of CnCs utilized for biomass valorization towards valuable chemicals production, and for environmental remediation applications are summarized and discussed. Emphasis is given in particular on the catalytic production of 5-hydroxymethylfurfural (5-HMF) from cellulose or starch-rich food waste, the hydrogenolysis of lignin towards high bio-oil yields enriched predominately in alkyl and oxygenated phenolic monomers, the photocatalytic, sonocatalytic or sonophotocatalytic selective partial oxidation of 5-HMF to 2,5-diformylfuran (DFF) and the decomposition of organic pollutants in aqueous matrixes. The carbonaceous materials were utilized as stand-alone catalysts or as supports of (nano)metals are various types of activated micro/mesoporous carbons, graphene/graphite and the chemically modified counterparts like graphite oxide and reduced graphite oxide, carbon nanotubes, carbon quantum dots, graphitic carbon nitride, and fullerenes.

show abstract

“…The issue to have clean water has always been a topic of importance [1] and access to clean water is a major component to Sustainable Development Goal 6 [2]. Water pollution occurs because of a large number of waste discharges [3] from various sources [4][5][6][7]. One of the issues that arises in research activities from chemical laboratories is the production of organic wastewater [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Functionalization of Two-Dimensional Coordination Polymer in Small Organic Matters Removal from Organic Wastewater

Fauzi

Kondo

Elzagheid

et al. 2022

Preprint

View full text Add to dashboard Cite

Multicobalt(II) two-dimensional layer coordination polymer {[Co(bitbu-OMe)2(NCS)2]·2MeOH}n (1) was synthesized using a bis-imidazole ligand having a steric hindrance, tert-butyl, and one methoxy group expressed by bitbu-OMe (bitbu-OMe = 1,1’-[(5-tert-butyl-2-methoxybenzene-1,3-diyl)dimethanediyl]bis(1H-imidazole). Since there are two methanol molecules trapped inside each void within 1, the investigation of small organic matters removal from organic wastewater was conducted in order to reveal its ability in the purification process. The research findings indicate that 1 has the ability to capture methanol, acetone, acetonitrile, and tetrahydrofuran in organic wastewater with removal ratios of 29.17%, 63.22%, 42.77%, and 21.24%, respectively.

show abstract

A comprehensive review on the synthesis, performance, modifications, and regeneration of activated carbon for the adsorptive removal of various water pollutants

Cited by 84 publications

References 266 publications

Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum

Synthesis, Properties and Photocatalytic Activity of CaTiO3-Based Ceramics Doped with Lanthanum

Carbon-Based Nanocatalysts (CnCs) for Biomass Valorization and Hazardous Organics Remediation

Functionalization of Two-Dimensional Coordination Polymer in Small Organic Matters Removal from Organic Wastewater

Contact Info

Product

Resources

About