Enhancing the adsorption function of biochar by mechanochemical graphitization for organic pollutant removal

Su, Peidong; Gao, Xueyan; Zhang, Junke; Djellabi, Ridha; Yang, Bo; Wu, Qi; Wen, Zhen

doi:10.1007/s11783-021-1418-2

Cited by 29 publications

(11 citation statements)

References 54 publications

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“…As shown in Fig. 3a, all the samples show type II adsorption-desorption isotherm with an H1 hysteresis loop, indicating the mesoporous structure of them and free single multilayer reversible adsorption process on non-porous solid surface or macroporous solid [20,31]. This is further proved by the pore size distribution of natural zeolites and Fe-Zr-zeolite as presented in Fig.…”

Section: Optimization Of Modification Conditions Of Natural Zeolitesmentioning

confidence: 52%

“…S1b and Table S3. The R 2 for Langmuir adsorption isotherm was 0.9906, which further proved that the adsorption was chemically dominated [31,51].…”

Section: Adsorption Kinetics and Isotherm Analysesmentioning

confidence: 66%

“…In another study, He et al [27] successfully prepared Zr-MOFs with a specific surface area of 740.28 m 2 /g and the maximum adsorption capacity of Freached 102.40 mg/g at pH 7.0 at the initial Fconcentration of 200 mg/L. However, above mentioned ZrO 2 -derived materials usually have a relatively high cost and regeneration poses a complex problem for water defluoridation [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing the adsorption function of F- by iron and zirconium doped zeolite: Characterization and parameter optimization

Yang

Jia

Sun

et al. 2022

Environmental Engineering Research

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This study presented an original study on the F- removal by Fe and Zr doped Gismondine-dominated Zeolite. Various modified zeolites are prepared by systematically adjusting the synthesis variables, namely pH, mass ratio of zeolite to modify agent (mZeolite:m(Fe+Zr)), mass ratio of Fe to Zr (Fe:Zr) to investigate their effects on the F- adsorption. The performance of prepared Fe-Zr-Zeolite on F- removal was examined through both statistic adsorption and dynamic adsorption. Results indicated that when the modified pH was 7, the Fe:Zr ratio was 1:1 and mZeolite:m(Fe+Zr) was 1:2, the modified natural zeolites which was named Fe-Zr-Zeolite showed the best removal efficiency on F-. Fe-Zr-Zeolite could remove over 80% when the initial concentration was less than 20 mg/L and F- adsorption followed pseudo-second-order adsorption kinetic and Langmuir adsorption isotherm, indicating that F- adsorption by Fe-Zr-Zeolite was chemically dominated. Besides, Fe-Zr-Zeolite had better removal efficiency of F- under acidic conditions than that under alkaline conditions, and the competing anions, typically, Cl-, NO3- and SO42- had negligible effect on F- removal by Fe-Zr-Zeolite. The dynamic adsorption test demonstrated that in order to maintain the high removal efficiency of F-, the filling thickness of Fe-Zr-Zeolite should be at least 30 cm and the small the flow rate is, the higher the F- removal efficiency will be.

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Section: Optimization Of Modification Conditions Of Natural Zeolitesmentioning

confidence: 52%

“…S1b and Table S3. The R 2 for Langmuir adsorption isotherm was 0.9906, which further proved that the adsorption was chemically dominated [31,51].…”

Section: Adsorption Kinetics and Isotherm Analysesmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing the adsorption function of F- by iron and zirconium doped zeolite: Characterization and parameter optimization

Yang

Jia

Sun

et al. 2022

Environmental Engineering Research

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“…70 Moreover, the easily tuned porosity and surface functionality of the char make it a promising platform for the preparation of various functional carbon materials, which can be applied in many interesting fields. A number of functional carbon materials have been prepared via the functionalization of char, and their applications can be found in the fields of catalysis, 71 energy storage, 72 pollutant removal, 73 and CO 2 capture. 74 Bio-oil produced from either pyrolysis or hydrothermal conversion of lignocellulosic biomass has been regarded as a sustainable energy fuel because its combustion generates much lower amounts of GHG than those of conventional fossil fuels.…”

Section: ■ Emerging Technologies For Upgrading Bio-oil Into Renewable...mentioning

confidence: 99%

Thermochemical Conversion of Lignocellulosic Biomass into Mass-Producible Fuels: Emerging Technology Progress and Environmental Sustainability Evaluation

Liu

2021

ACS Environ. Au

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Lignocellulosic biomass is increasingly recognized as a carbon-neutral resource rather than an organic solid waste nowadays. It can be used for the production of various value-added chemicals and biofuels like bio-oil. However, the undesirable properties of bio-oil such as chemical instability, low heating value, high corrosivity, and high viscosity are greatly restricting the utilization of bio-oil as a drop-in fuel. As a consequence, bio-oil should be upgraded. Recently, several emerging methods, such as electrocatalytic hydrogenation, atmospheric distillation, and plasma-assisted catalysis, have been developed for improving the bio-oil quality under mild conditions. Here, we overview the new knowledge on the molecular structure of lignocellulosic biomass gained over the past years and discuss the future challenges and opportunities for further advances of the bio-oil production and upgrading from lignocellulosic biomass. The development of sustainable biomass resource recycle systems with improved efficiency and minimized environmental impacts is analyzed in details. Also, their environmental impacts and sustainability are evaluated. Lastly, the remaining knowledge gaps are identified, and the future research needs that may lead to massive production of biofuels from lignocellulosic biomass are highlighted.

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“…Several functional groups are contained in this surface like hydroxyl, carboxyl and carbonyl groups (Antón-Herrero et al, 2018). The activation of biochar surface via chemical or physical treatments and its modification with organic functions or metal deposition are relatively simple and efficient processes (Huang et al, 2021;Jia et al, 2021;Kasera et al, 2021;Leng et al, 2021;Lopez-Tenllado et al, 2021;Su et al, 2021). Moreover, the biochar is characterized by a high stability and strong resistance to harsh chemical and physical conditions, and by its biocompatibility and resistance to biological degradation (Hammes et al, 2008;Leng et al, 2019;Yıldızlı et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Versatile biogenesis of Silver-Copper nanoparticles over arylated pulp sugarcane bagasse- derived biochar: high catalytic performance

Snoussi

Chehimi

Ammar

et al. 2022

Preprint

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Agrowaste-derived materials for the supporting of nanocatalysts is attracting a great attention due to the abundance and the physicochemical features they provide as bio-sourced underlying materials. The main idea is built around the conversion of junk material into functional material, a journey of waste from "trash to treasure". Herein, we suggest a versatile method to elaborate phytochemically reduced Ag/Cu nanoparticles supported on aryl-sulfonated sugarcane bagasse pulp-derived biochar. Biochar was first prepared by a slow pyrolysis of the biomass at 500°C under N2:H2 95%:5% inert atmosphere. Thereafter, in-situ arylation of the biochar surface has been performed to obtain SO3H-biochar. Silver and copper ions loading in SO3H-biochar has been established via a wet impregnation in a hydroalcoholic medium. Finally, the natural liquid extract of sugarcane bagasse has been employed to reduce the metallic ions instead of the toxic NaBH4 very commonly used, the obtained SO3H-biochar@Ag/Cu has been characterized by XRD, XPS, SEM and RAMAN spectroscopy. The catalytic activity of the nanocomposite has been investigated in the oxidative degradation of malachite green oxalate. A total mineralization of the dye has been registered and the experimental data was found to give a relatively good fitting to the pseudo-first-order model with a mineralization apparent constant rate equals to 65 10-3 min-1.

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Enhancing the adsorption function of biochar by mechanochemical graphitization for organic pollutant removal

Cited by 29 publications

References 54 publications

Enhancing the adsorption function of F- by iron and zirconium doped zeolite: Characterization and parameter optimization

Enhancing the adsorption function of F- by iron and zirconium doped zeolite: Characterization and parameter optimization

Thermochemical Conversion of Lignocellulosic Biomass into Mass-Producible Fuels: Emerging Technology Progress and Environmental Sustainability Evaluation

Versatile biogenesis of Silver-Copper nanoparticles over arylated pulp sugarcane bagasse- derived biochar: high catalytic performance

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