Optimization, equilibrium, adsorption behaviour of Cu/Zn/Fe LDH and LDHBC composites towards atrazine reclamation in an aqueous environment

Lartey-Young, George

doi:10.1016/j.chemosphere.2022.133526

Cited by 26 publications

(8 citation statements)

References 56 publications

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“…The absorption peaks observed in Glu@NiFe-LDH at 3211, 1567, and 1291 cm À1 can be attributed to -NH 2 , N-H, and C-N. 42 The low-frequency bands in the range of 500-1000 cm À1 are associated with Ni-O, Fe-O, and Ni-O-Fe, which correspond to the M-O and M-O-M (M = Ni, Fe) lattice vibrations of LDH. 43 The number of active sites in the solution of the adsorbent material is greatly influenced by the specific surface area and pore distribution, which play a decisive role in the adsorption performance. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Unveiling glutamic acid-functionalized LDHs: understanding the Cr(vi) removal mechanism from microscopic and macroscopic view points

Hong,

Shi,

Ding

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Resultsmentioning

confidence: 99%

Unveiling glutamic acid-functionalized LDHs: understanding the Cr(vi) removal mechanism from microscopic and macroscopic view points

Hong,

Shi,

Ding

et al. 2023

Phys. Chem. Chem. Phys.

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“…The Box-Behnken experimental design in Design-Expert 13 was employed for the analysis. The number of experimental runs was determined following Equation ( 2) [33]. To determine the effects of pH, coagulant dosage, and temperature in Table 2 on TN, TOC, and TSS removal, 15 separate experiments were conducted.…”

Section: Response Surface Methodology and Optimizationmentioning

confidence: 99%

Application of Response Surface Methodology to Optimize Coagulation Treatment Process of Urban Drinking Water Using Polyaluminium Chloride

Yateh

Lartey-Young

et al. 2023

Water

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Many coagulants such as aluminium sulfate, ferric sulfate, and ferrous sulfate have been investigated in the past, but there is a lack of data on their effectiveness to some specific water quality parameters. This study aimed at investigating the efficiency of the coagulation water treatment process to remove pollutants such as total organic carbon (TOC), total nitrogen (TN), and total suspended solids (TSS) from urban drinking water. The polyaluminium chloride (PAC) coagulant was applied to determine the impact of the treatment process on the structure and diversity of these pollutants in urban drinking water. All water samples were collected from the Yangtze River, Baoshan district, Shanghai, China, over a period of three months which coincided with the late summer and early winter periods. Specific to different coagulant characterizations, a preliminary test was performed with three other coagulants, namely, aluminium sulfate, polyaluminium, silicate sulfate, and ferric sulfate to determine their optimal conditions for floc characterization and removal efficiencies. In summary, the overall performance of the PAC coagulant was better than that of the other three coagulants used in the pre-treatment of the sampled water. The obtained results revealed that under the optimum operating conditions, the doses of the PAC were as follows: 20, 35, 50, 65, and 80 mgL−1, respectively. The water temperature and pH were determined by using a pH meter, the TOC and TN determined by using a TOC analyzer, and the TSS by following the ASTM D2540 method. Furthermore, the response surface methodology by the Box–Behnken optimization analysis was applied to coagulant dosage, temperature, pH, and three corresponding dependent factors (TSS, TOC, and TN) to determine the best optimal conditions for the PAC performance. To determine whether or not the quadratic model adequately explained and predicted the response during the coagulation process, an analysis of variance was performed. Multiple optimal factors were identified for the urban drinking water treatment, including a pH value of 6.9, water temperature of 20.1 °C, and a coagulant dosage of 9.7 mgL−1.

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“…159,160 Young et al studied the adsorption of atrazine by Cu-Zn-Fe-LDHs and LDHs dispersed on bamboo biochar (LDHBC), and revealed the interactive effects of pH value, adsorbent dosage and initial concentration of adsorbate on the optimal adsorption performance of hydrotalcite. 161 In 2021, Hao et al successfully prepared cotton carbon/CoNiMn-LDHs (CCO/CNM), a composite material of cotton carbon and metal-organic framework material (ZIF-67), by a solvothermal method and calcination (Fig. 9l).…”

Section: Biomass Carbon Compositesmentioning

confidence: 99%

Ternary layered double hydroxide cathode materials for electrochemical energy storage: a review and perspective

Zheng

et al. 2022

Sustainable Energy Fuels

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Optimization, equilibrium, adsorption behaviour of Cu/Zn/Fe LDH and LDHBC composites towards atrazine reclamation in an aqueous environment

Cited by 26 publications

References 56 publications

Unveiling glutamic acid-functionalized LDHs: understanding the Cr(vi) removal mechanism from microscopic and macroscopic view points

Unveiling glutamic acid-functionalized LDHs: understanding the Cr(vi) removal mechanism from microscopic and macroscopic view points

Application of Response Surface Methodology to Optimize Coagulation Treatment Process of Urban Drinking Water Using Polyaluminium Chloride

Ternary layered double hydroxide cathode materials for electrochemical energy storage: a review and perspective

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