Simultaneous and fast removal of As3+, As5+, Cd2+, Cu2+, Pb2+ and F− from water with composite Fe-Ti oxides nanoparticles

Monárrez-Cordero, B.E.; Sáenz-Trevizo, A.; Bautista-Carrillo, L. M.; Silva-Vidaurri, L.G.; Miki‐Yoshida, M.; Amézaga-Madrid, P.

doi:10.1016/j.jallcom.2018.05.013

Cited by 29 publications

(7 citation statements)

References 52 publications

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“…reactions of CV onto BC-PKS are endothermic, suggesting the adsorption of CV was more favorable with increasing temperature [10,88]. In addition, ΔH 0 was 60.5 kJ/mol, indicating that CV adsorption onto BC-PKS was achieved via chemisorption, which occurs when ΔH 0 > 40 kJ/mol [89,90]. The positive values of ∆S ○ for BC-PKS signify an increase in the disorder at the interfaces between CV and BC-PKS during the CV adsorption on BC-PKS that is accompanied with changes in the CV and BC-PKS structures [10,91].…”

Section: Effects Of the Ph Of The Solutionmentioning

confidence: 99%

The Removal of Crystal Violet from Textile Wastewater Using Palm Kernel Shell-Derived Biochar

et al. 2020

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In this study, we explored the adsorption potential of biochar derived from palm kernel shell (BC-PKS) as an affordable adsorbent for the removal of crystal violet from wastewater. Kinetics, equilibrium, and thermodynamics studies were carried out to evaluate the adsorption of crystal violet onto BC-PKS. The kinetics adsorption process followed the pseudo-second-order model, indicating that the rate of adsorption is principally controlled by chemisorption. The adsorption equilibrium data were better fitted by the Langmuir isotherm model with a determination coefficient of 0.954 and a maximum adsorption of 24.45 mg/g. Thermodynamics studies found the adsorption of crystal violet by BC-PKS to be endothermic with increasing randomness at the BC-PKS/crystal violet interface. The percentage removal and adsorption capacity increased with the pH of the solution, as the negative charges on the biochar surface at high pH enhance the electrostatic attraction between crystal violet molecules and BC-PKS. Increasing the BC-PKS dosage from 0.1 to 1.0 g increased percent removal and decreased the adsorption capacity of crystal violet onto BC-PKS. Therefore, biochar from agricultural by-products, i.e., palm kernel shell, can be cost-effective adsorbents for the removal of crystal violet from textile wastewater.

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Section: Effects Of the Ph Of The Solutionmentioning

confidence: 99%

The Removal of Crystal Violet from Textile Wastewater Using Palm Kernel Shell-Derived Biochar

et al. 2020

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“…After reading full-texts of 20 records, 11 records were excluded because simultaneous adsorption is not related to HMs together. Then, 9 records were included based on the inclusion and exclusion criteria and investigated for this review (4)(5)(6)(7)(8)(9)(10)22,23). The summarized information of the included records are listed in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…Metal ions can exert indirect and direct harm to the public health once discharged into the water resources due to their non-biodegradable nature. Today, in order to protect aqueous matrices, various nanomaterials are used to remove pollutants from drinking water, wastewater and groundwater due to good performance (4,8,9,14,18). Therefore, researchers are recommended to synthesize non-toxic and safe nanoadsorbents through green methods.…”

Section: Future Perspectivesmentioning

confidence: 99%

“…As HMs have long half-life and are non-biodegradable in the environment, they have been considered as toxic substances for the public health and environment even at ppb levels (4,6,7). These toxic metals affect cardiovascular systems, immune, digestive system, and the normal functioning of neurological via accumulation in the soft tissues and living organisms (8,9). In fact, some of them like Cu and Zn are proposed as carcinogens by the United States Environmental Protection Agency (USEPA) (7,10).…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous adsorption of heavy metals from aqueous matrices by nanocomposites: A first systematic review of the evidence

Mirzaee

Jaafarzadeh

Martı́nez

et al. 2021

Environ Health Eng Manag

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Background: Nanocomposites have received remarkable attention as effective adsorbents for removal of coexisting pollutants over the last decades. The presence of heavy metals (HMs) in wastewater has caused a global health concern. Therefore, the aim of this study was to review the most relevant publications reporting the use of nanostructures to simultaneous adsorption of HMs in mixed aqueous systems. Methods: In this systematic review, 9 studies were included through a systematic search in the three databases (ISI, Scopus, and PubMed) during 1990-2021. The optimal value of simultaneous adsorption parameters such as initial concentration, contact time, adsorbent dosage, and pH was discussed. Results: Findings indicate that the Langmuir and Freundlich models and the pseudo-second-order kinetic model have been widely used and the most popular models to describe the equilibrium of HMs by nanoadsorbents. This study confirmed that the simultaneous removal rate of HMs decreased with an increase in pH value. It was found that the major mechanisms of HMs adsorption onto nanostructures were electrostatic interactions and precipitation. Conclusion: Nanocomposites have remarkable adsorption performance for HMs with the highest adsorption capacity (qe(mg/g)).

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“…Furthermore, most of these studies examined the adsorption capacities of target adsorbents in single and/or binary-metal solutions at a constant liquid-to-solid (L/S) ratio [50]. Because actual industrial wastewater might be contaminated by multi-species heavy metals like Pb 2+ , Cd 2+ , Ni 2+ , Cu 2+ , and Zn 2+ , further studies are needed to examine the simultaneous removal of heavy metals fully considering the co-existence of competitive metals in wastewater [19,60]. For example, it has been reported that Cd 2+ adsorption onto cementitious adsorbents, including AAC grains, was hampered by the co-existence of Pb 2+ and Cu 2+ due to their high affinities with the tested adsorbents [61][62][63][64].…”

Section: Introductionmentioning

confidence: 99%

Steel Slag and Autoclaved Aerated Concrete Grains as Low-Cost Adsorbents to Remove Cd2+ and Pb2+ in Wastewater: Effects of Mixing Proportions of Grains and Liquid-to-Solid Ratio

Kumara

Kawamoto

2021

Sustainability

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This study investigated the applicability of industrial by-products such as steel slag (SS) and autoclaved aerated concrete (AAC) grains (<0.105, 0.105–2, 2–4.75 mm) as low-cost adsorbents for simultaneous removal of Cd2+ and Pb2+ in wastewater. A series of batch adsorption experiments was carried out in single and binary-metal solutions of Cd2+ and Pb2+ by changing the mixing proportions of SS and AAC grains. In addition, the effect of the liquid-to-solid ratio (L/S) on the removal of Cd2+ and Pb2+ in multi-metal solution was examined. Results showed that SS grains had a high affinity with Cd2+ in the single solution, while AAC grains had an affinity with Pb2+. In the binary solution, the mixtures of SS and AAC grains removed both Cd2+ and Pb2+ well; especially, the tested adsorbents of SS+AAC [1:1] and SS+AAC [1:4] mixtures achieved approximately 100% removal of both metals. Based on the results in the multi-metal solutions, the metal removal % and selectivity sequence varied depending on the mixed proportions of SS and AAC grains and L/S values. It was found that the SS+AAC [1:1] mixture of SS and AAC grains showed 100% removals of Cd2+, Pb2+, Cu2+, Ni2+, and Zn2+ simultaneously at L/S = 10 and 60.

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Simultaneous and fast removal of As3+, As5+, Cd2+, Cu2+, Pb2+ and F− from water with composite Fe-Ti oxides nanoparticles

Cited by 29 publications

References 52 publications

The Removal of Crystal Violet from Textile Wastewater Using Palm Kernel Shell-Derived Biochar

The Removal of Crystal Violet from Textile Wastewater Using Palm Kernel Shell-Derived Biochar

Simultaneous adsorption of heavy metals from aqueous matrices by nanocomposites: A first systematic review of the evidence

Steel Slag and Autoclaved Aerated Concrete Grains as Low-Cost Adsorbents to Remove Cd2+ and Pb2+ in Wastewater: Effects of Mixing Proportions of Grains and Liquid-to-Solid Ratio

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