Antimony contamination and its risk management in complex environmental settings: A review

Bolan, Nanthi; Kumar, Manish; Singh, Ekta; Kumar, Avanish; Singh, Lal; Kumar, Sunil; Keerthanan, S.; Hoang, Son A.; El-Naggar, Ali; Vithanage, Meththika; Sarkar, Binoy; Wijesekara, Hasintha; Diyabalanage, Saranga; Sooriyakumar, Prasanthi; Vinu, Ajayan; Wang, Hailong; Kirkham, M.B.; Shaheen, Sabry M.; Rinklebe, Jörg; Siddique, Kadambot H. M.

doi:10.1016/j.envint.2021.106908

Cited by 171 publications

(46 citation statements)

References 224 publications

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“…This study reports the synthesis of CSB pyrolyzed at 350, 500, and 650 °C and its subsequent application to remove Sb(III) from aqueous solutions. The specific objectives of this study were to: (1) determine the adsorption capacity of CSB for Sb(III) under different conditions (i.e., reaction time, initial adsorbate concentration, solution pH, ionic strength, and co-existing substances); (2) unravel the Sb(III) adsorption mechanism using multiple advanced 1 Introduction Antimony (Sb) is a metalloid that belongs to Group VA of the periodic table, and the element exhibits chemical and bio-toxicological characteristics similar to arsenic (As), where oxyanions of both the elements might transform between trivalent and pentavalent species under variable redox conditions (Nishad and Bhaskarapillai 2021;Bolan et al 2022b). Antimony exists in four oxidation states (-III, 0, +III, and + V) of which Sb(III) and Sb(V) are the prevalent forms in the environment, with Sb(III) 10-time more toxic than Sb(V) (Xiong et al 2020).…”

Section: Insights Into Simultaneous Adsorption and Oxidation Of Antim...mentioning

confidence: 99%

Insights into simultaneous adsorption and oxidation of antimonite [Sb(III)] by crawfish shell-derived biochar: spectroscopic investigation and theoretical calculations

Chen

Gao

et al. 2022

Biochar

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Removal of antimonite [Sb(III)] from the aquatic environment and reducing its biotoxicity is urgently needed to safeguard environmental and human health. Herein, crawfish shell-derived biochars (CSB), pyrolyzed at 350, 500, and 650°C, were used to remediate Sb(III) in aqueous solutions. The adsorption data best fitted to the pseudo-second-order kinetic and Langmuir isotherm models. Biochar produced at 350°C (CSB350) showed the highest adsorption capacity (27.7 mg g− 1), and the maximum 78% oxidative conversion of Sb(III) to Sb(V). The adsorption results complemented with infrared (FTIR), X-ray photoelectron (XPS), and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy analyses indicated that the adsorption of Sb(III) on CSB involved electrostatic interaction, surface complexation with oxygen-containing functional groups (C = O, O = C–O), π–π coordination with aromatic C = C and C–H groups, and H-bonding with –OH group. Density functional theory calculations verified that surface complexation was the most dominant adsorption mechanism, whilst π–π coordination and H-bonding played a secondary role. Furthermore, electron spin resonance (ESR) and mediated electrochemical reduction/oxidation (MER/MEO) analyses confirmed that Sb(III) oxidation at the biochar surface was governed by persistent free radicals (PFRs) (•O2− and •OH) and the electron donating/accepting capacity (EDC/EAC) of biochar. The abundance of preferable surface functional groups, high concentration of PFRs, and high EDC conferred CSB350 the property of an optimal adsorbent/oxidant for Sb(III) removal from water. The encouraging results of this study call for future trials to apply suitable biochar for removing Sb(III) from wastewater at pilot scale and optimize the process. Graphical abstract

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Section: Insights Into Simultaneous Adsorption and Oxidation Of Antim...mentioning

confidence: 99%

Insights into simultaneous adsorption and oxidation of antimonite [Sb(III)] by crawfish shell-derived biochar: spectroscopic investigation and theoretical calculations

Chen

Gao

et al. 2022

Biochar

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“…Correlation with SOM content (Table A.5) is positive for all fractions of the element. The total content of Sb is also higher in the Bt-horizon, which indicates its possible presence in poorly soluble primary clay minerals (Bolan et al 2022; Kabata-Pendias and Szteke 2015). The complexes (F2) of Sb with organic matter are formed in the topsoil and with carbonates in the BCkhorizon.…”

Section: B1)mentioning

confidence: 97%

“…The first group (Sb, Mo, Cr and U) is characterized by relatively low mobility in the soils. Permanently low mobility of Sb in the vast majority of the samples is due to the presence of insoluble clay minerals (Bolan et al 2022;Kabata-Pendias and Szteke 2015). Low mobility of Sb in soils is also associated with just slight involvement of its F1 compounds in the biological cycle by plants (Table A.1) and the removal of easily soluble compounds of the element within slightly acidic, close to neutral (pH = 5.2-6.8) surface waters of the Mezha River (Minaeva and Andreev 2008).…”

Section: Exchangeable Fraction (F1)mentioning

confidence: 99%

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Vertical And Spatial Distribution Of Major And Trace Elements In Soil Catena At The Central Forest State Nature Biosphere Reserve (Se Valdai Hills, Russia)

Enchilik

Semenkov

2022

GES

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In this study, we discussed relationship between the vertical and spatial differentiation of 14 chemical elements (total content and three mobile fractions extracted by NH4 Ac, NH4 Ac with 1% EDTA and 1M HNO3 ) and the environmental factors in background Retisols and Stagnosols within a soil catena. In the A soil horizon, the extractability of elements decreased in the series Cd, Mn, Pb> Co, Ni, Cu, Fe> Zn, Bi, As> U, Cr, Mo> Sb. In the O and A horizons, total and exchangeable Mn and Zn were uptaken by plants. In the A horizon, total Bi, Cd, Pb, Sb, Mo, exchangeable As, Bi, Cd, Co, Ni, Mo, as well as As, Cd, Cu, Pb, Zn, Sb bound with Fe-Mn (hydr)oxides were sorbed by soil organic matter; Cr, Fe, Mn formed the organic complexes. In the C horizon, Cd, Fe, Mn, Sb complexes co-precipitated with carbonates. In the Bt horizon, total Cr, Cu, exchangeable Cu, Ni, as well as Cr and U bound with Fe-Mn (hydr)oxides migrated due to the lessivage. On the toeslope’s biogeochemical barrier, exchangeable Zn, Mo bound with complexes, As, Bi, and Fe bound with Fe-Mn (hydr)oxides were accumulated. In the lower part of the catena, peat accumulated the exchangeable compounds of As, Bi, Cr, Fe, Mo, Pb, U. The spatial differentiation of elements became less contrasting from the O and A horizons to the E, B and C horizons.

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“…Biochar is a relatively stable carbonaceous substance synthesize using different feedstocks such as lignocellulosic waste [ 75 , 76 ], municipal waste [ 77 , 78 ], plastic waste [ 16 ] at elevated temperatures (> 400°C) in absence of oxygen supply. Owing to its excellent cation exchange capacity, porosity, high surface area, and surface functional groups, it has been extensively applied in removal of organic and inorganic contaminants [ 79 , 80 ] additives in anaerobic digestion and composting [ 11 , 81 ], and soil amendment [ 78 ]. Due to excessive availability of bamboo biomass, it can be considered as an excellent feedstock for production of biochar via thermochemical conversion routes [ 59 ].…”

Section: Value-added Products From Bamboomentioning

confidence: 99%

Multifunctional applications of bamboo crop beyond environmental management: an Indian prospective

et al. 2022

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Increasing population, industrialization, and economic growth cause several adverse impacts on the existing environment and living being. Therefore, rising pollutants load and their mitigation strategies, as well as achieving energy requirements while reducing reliance on fossil fuels are the key areas, which needs significant consideration for sustainable environment. Since India has considerable biomass resources, bioenergy is a significant part of the country’s energy policy. However, the selection of feedstock is a crucial step in bioenergy production that could produce raw material without compromising food reserve along with the sustainable environment. Higher growth capacity of bamboo species makes them a suitable lignocellulosic substrate for the production of high-value greener products such as fuels, chemicals, and biomaterials as well as an appropriate candidate for eco-restoration of degraded land. In that context, the current review discusses the multidimensional applications of bamboo species in India. The bioenergy potency of bamboo and probability of aligning its production, cultivation, and operation with economic and social development agendas are also addressed, making it an exceptional crop in India. Additionally, its fast growth, perennial root systems, and capability to restore degraded land make it an essential part of ecological restoration. Furthermore, this review explores additional benefits of bamboo plantation on the environment, economy, and society along with future research prospects.

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Antimony contamination and its risk management in complex environmental settings: A review

Cited by 171 publications

References 224 publications

Insights into simultaneous adsorption and oxidation of antimonite [Sb(III)] by crawfish shell-derived biochar: spectroscopic investigation and theoretical calculations

Insights into simultaneous adsorption and oxidation of antimonite [Sb(III)] by crawfish shell-derived biochar: spectroscopic investigation and theoretical calculations

Vertical And Spatial Distribution Of Major And Trace Elements In Soil Catena At The Central Forest State Nature Biosphere Reserve (Se Valdai Hills, Russia)

Multifunctional applications of bamboo crop beyond environmental management: an Indian prospective

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