Excellent Adsorption–Desorption of Ammonium by a Poly(acrylic acid)-Grafted Chitosan and Biochar Composite for Sustainable Agricultural Development

Zhang, Lixun; Tang, Shengyin; Guan, Yuntao

doi:10.1021/acssuschemeng.0c05070

Cited by 46 publications

(12 citation statements)

References 48 publications

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“…Despite the high kinetics achievable by our sample, a preliminary study was carried out and the results showed that TOC does not work well in the presence of other positively charged ions such as Na + , Mg 2+ , Ca 2+ , Sr 2+ , and Mn 2+ . Similar results were obtained in other studies on TAN removal in the presence of the competing ions. − Furthermore, as the dimensions of the current TEMPO-oxidized cellulose are not in the nanometer range, TOC could be further processed by mechanical homogenizing to reach the nanoscale range and its synergy with other materials in different forms of cellulosic porous materials could be explored further for higher adsorption capacity and to cater for the harsher water environment (i.e., municipal wastewater or seawater conditions). , …”

Section: Further Discussionsupporting

confidence: 75%

TEMPO-Oxidized Microcrystalline Cellulose for Rapid Adsorption of Ammonium

Ong

Liang

et al. 2022

Ind. Eng. Chem. Res.

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As low as 1 ppm concentration of ammonia is sufficient to pose a threat to fish cultured in the fish farm, and therefore effective ammonia removal method is necessary to minimize the ammonia concentration. In this study, cellulose, which is one of the low-cost and highly versatile green polymers, has been modified by TEMPO-mediated oxidation and first applied for ammonia removal from water. For the TEMPOoxidized cellulose of 0.78 mmol/g carboxylate group content, the adsorption capacity was measured to be 8.21 mg/g (empirically, 9.465 mg/g derived from Langmuir isotherm model) from water at pH around 7.0, which is comparable with the existing carbon-based sorbent for the reduction of ammonia. This also indicates close to 100% utilization of the carboxylate adsorption sites. In addition, equilibrium adsorption can be achieved within 5 min. The ammonium adsorption data fit the Langmuir model very well, indicating a monolayer chemical adsorption process. The adsorption performance of the material was minimally influenced by a pH range of 5.0−9.0 but substantially affected by the presence of competing ions. Despite a slight decrease in adsorption performance, the material can be regenerated and applied in a real water sample. Electrostatic interaction and hydrogen bonding between the introduced carboxylate groups and ammonium ions appear to be the adsorption mechanisms governing the material performance in ammonia removal. Further discussion on performance comparison, alternative modification methods, production cost, and potential usage of the postadsorption material is also included.

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Section: Further Discussionsupporting

confidence: 75%

TEMPO-Oxidized Microcrystalline Cellulose for Rapid Adsorption of Ammonium

Ong

Liang

et al. 2022

Ind. Eng. Chem. Res.

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“…The TBC exhibited the best response in minimizing Cd concentrations in roots, soil, and shoots by 54%, 58%, and 73%, respectively, compared to the control. Zhang et al (2020c) reported that poly (acrylic acid)-grafted chitosan and biochar composite (PAA/CTS/BC) exhibited high elimination capacity of ammonium, with the highest value of 149.25 mg/g at temperature of 25 °C, relatively greater than most reported the biochar-based materials. In addition, it has also been reported that the number of surface functional groups can be increased by modifying biochar by macromolecules, such as polyethyleneimine (Wang et al 2020), cyclodextrin (Qu et al 2020), humic acid (Zhao et al 2019), and lignin (Wu et al 2021b).…”

Section: Organic Modified Biocharmentioning

confidence: 97%

Biochar for the removal of contaminants from soil and water: a review

Qiu

Liu

Ling

et al. 2022

Biochar

345

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Biochar shows significant potential to serve as a globally applicable material to remediate water and soil owing to the extensive availability of feedstocks and conducive physio-chemical surface characteristics. This review aims to highlight biochar production technologies, characteristics of biochar, and the latest advancements in immobilizing and eliminating heavy metal ions and organic pollutants in soil and water. Pyrolysis temperature, heat transfer rate, residence time, and type of feedstock are critical influential parameters. Biochar’s efficacy in managing contaminants relies on the pore size distribution, surface groups, and ion-exchange capacity. The molecular composition and physical architecture of biochar may be crucial when practically applied to water and soil. In general, biochar produced at relatively high pyrolysis temperatures can effectively manage organic pollutants via increasing surface area, hydrophobicity and microporosity. Biochar generated at lower temperatures is deemed to be more suitable for removing polar organic and inorganic pollutants through oxygen-containing functional groups, precipitation and electrostatic attraction. This review also presents the existing obstacles and future research direction related to biochar-based materials in immobilizing organic contaminants and heavy metal ions in effluents and soil. Graphical Abstract

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“…However, the excessive application of nitrogen fertilizer is contrary to their low utilizing efficiency in China. A considerable amount of nitrogen fertilizer is lost to the environment annually, accounting for 50-70% of the total applied fertilizers, which causes seriously adverse impacts on the global nitrogen cycle [2]. The nitrogen is lost gradually through ammonia volatilization, nitrification-denitrification, nitrate leaching, and runoff [3].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, our study explored the application of biochar in paddy fields with controlled-irrigation technology, simultaneously monitoring the inorganic nitrogen concentration in the surface soil solution, soil inorganic nitrogen content, urease activity, bacteria quantity, and ammonia-volatilization flux during the rice planting season. The objectives of this experiment were to: (1) determine the variation of ammonia volatilization with biochar under controlled irrigation; (2) analyze the relationship between other influencing factors (environmental properties and ammonia-oxidizing microorganism) and ammonia volatilization in paddy fields; and (3) reveal the mechanism of the effect of biochar application on ammonia-volatilization loss in paddy fields under controlled irrigation.…”

Section: Introductionmentioning

confidence: 99%

Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation

Ding

Sung-Bum

et al. 2022

Sustainability

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Ammonia volatilization is an important nitrogen loss pathway in the paddy field ecosystem which leads to low nitrogen-utilization efficiency and severe atmospheric pollution. To reveal the influence and the mechanism of biochar application on ammonia volatilization from paddy fields under controlled irrigation, field experiments were conducted in the Taihu Lake Basin in China. The experiment consisted of three levels of biochar application (0, 20, and 40 t·ha−1) and two types of irrigation management (controlled irrigation and flood irrigation). Increasing ammonia volatilization occurred after fertilization. Biochar application reduced the cumulative ammonia volatilization from controlled-irrigation paddy fields, compared with non-biochar treatment. The cumulative ammonia volatilization in controlled-irrigation paddy fields with 40 t·ha−1 biochar application was reduced by 12.27%. The decrease in ammonia volatilization was related to the change in soil physical and soil physical–chemical properties and soil microbial activities. The high biochar application (40 t·ha−1) increased the NH4+-N content in soil (p < 0.01) and soil solution (p <0.05), increased by 64.98% and 19.72%, respectively. The application also increased the soil urease activity (p < 0.01), and high biochar application (40 t·ha−1) increased soil urease activity by 33.70%. Ammonia volatilization from paddy fields was significantly correlated with the nitrogen concentration (p < 0.01) in the soil solution and soil urease activity (p < 0.05). Meanwhile, the abundance of ammonia monooxygenase subunit A (AOA) and ammonia-oxidizing bacteria (AOB) with biochar application under controlled irrigation showed an increasing trend with rice growth. The long-term application of biochar may have a relatively strong potential to inhibit ammonia volatilization. In general, the combined application of controlled irrigation and biochar provides an eco-friendly strategy for reducing farmland N loss and improving paddy field productivity.

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Excellent Adsorption–Desorption of Ammonium by a Poly(acrylic acid)-Grafted Chitosan and Biochar Composite for Sustainable Agricultural Development

Cited by 46 publications

References 48 publications

TEMPO-Oxidized Microcrystalline Cellulose for Rapid Adsorption of Ammonium

TEMPO-Oxidized Microcrystalline Cellulose for Rapid Adsorption of Ammonium

Biochar for the removal of contaminants from soil and water: a review

Impact of Biochar Application on Ammonia Volatilization from Paddy Fields under Controlled Irrigation

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