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Specialty: Environmental Health
Nutrition: Chromium
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Total 1037 results found since Jan 2013.
Adsorption performance and kinetics of Cr(VI) onto activated carbons derived from the waste leaves of invasive plants Rhus typhina and Amorpha fruticosa
Environ Sci Pollut Res Int. 2023 Sep 20. doi: 10.1007/s11356-023-29833-7. Online ahead of print.ABSTRACTTo maximize the potential of biomass from invasive plants, waste leaves from Rhus typhina (RT) and Amorpha fruticosa (AF) were used to prepare activated carbons (ACs) for the efficient removal of chromium from wastewater. Six ACs were prepared by CO2 activation at 850 °C with varying flow rates (500, 1000, and 1500 mL/min) and characterized by yield, pH, N2 adsorption isotherm, FTIR, SEM, TG, and XPS. The adsorption isotherm and kinetics for chromium removal were analyzed. The outcomes showed that the ACs had mesoporous...
Source: Environmental Science and Pollution Research International - September 20, 2023 Category: Environmental Health Authors: Tuerxun Tuerhong Zaituniguli Kuerban Maryamgul Abdurahman Cai Xinbin Amanula Yimingniyazi Source Type: research
ZnO/black phosphorus/C < sub > 3 < /sub > N < sub > 4 < /sub > composite: An effective photocatalyst for Cr (VI) reduction and degradation of rhodamine B
Environ Res. 2023 Sep 15:117122. doi: 10.1016/j.envres.2023.117122. Online ahead of print.ABSTRACTWe have synthesized an n-p-n heterojunction of carbon nitride (C3N4), zinc oxide (ZnO), and black phosphorus (BP) through the sonication-stirring method. The photocatalytic ability of this composite was examined for the decomposition rhodamine B (RhB) and detoxification of hexavalent chromium ion (up to 97% during 80 min) under Xenon irradiation. The results of trapper experiments indicated that the active species were hydroxyl radical (˙OH), electron (e-), and superoxide anion radical (˙O2-). Based on the obtained potential...
Source: Environmental Research - September 17, 2023 Category: Environmental Health Authors: Sahar Moradian Ghodsi Mohammadi Ziarani Alireza Badiei Siavash Iravani Source Type: research
Analysis of soil pollution characteristics and influencing factors based on ten electroplating enterprises
This study serves as a foundation for conceptualizing site repair technology in the electroplating industry and offers a reference and methodology for pollution and source control in this and related sectors.PMID:37717896 | DOI:10.1016/j.envpol.2023.122562
Source: Environmental Pollution - September 17, 2023 Category: Environmental Health Authors: Jinjin Wei Peili Shi Guannan Cui Xin Li Minke Xu Dongyao Xu Yunfeng Xie Source Type: research
Enhanced Adsorption of Hexavalent Chromium from Aqueous Solutions by Iron- manganese Modified Cedarwood Biochar: Synthesis, Performance, Mechanism, and Variables
Bull Environ Contam Toxicol. 2023 Sep 16;111(3):43. doi: 10.1007/s00128-023-03802-9.ABSTRACTThree modified biochar (Cunninghamia lanceolata) with iron and manganese elementals (FMBCs) were successfully prepared and used to remove hexavalent chromium (Cr(VI)) from aqueous solutions. The biochar before and after decoration were characterized by advanced instruments. The adsorption capacities of modified biochar in different Cr(VI) (20 mg·L- 1, 1 mg·L- 1) solutions were 4868.28 mg·kg- 1 and 300 mg·kg- 1. The Cr(VI) removal was highest at pH 2. The possible adsorption was considered to be ion exchange adsorption, chemisorp...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2023 Category: Environmental Health Authors: Jizhuang Chu Shuhan Xin Yihang He Xin Gao Xin Zhou Yingqi Zhang Xinxin Liu Xinru Zhang Shiliang Wang Source Type: research
Effect of low molecular weight organic acids on the lead and chromium release from widely-used lead chromate pigments under sunlight irradiation
This study revealed the photodissolution mechanism of lead chromate pigment mediated by LMWOAs with different molecular structures, which helps understand the environmental photochemical behavior of the pigment. The present results emphasize the important role of DOM in the heavy metals release from commercial inorganic pigments.PMID:37716691 | DOI:10.1016/j.envpol.2023.122553
Source: Environmental Pollution - September 16, 2023 Category: Environmental Health Authors: Han Gao Huixin Li Xinwei Zhou Jing Wei Xiaolei Qu Tao Long Source Type: research
Enhanced Adsorption of Hexavalent Chromium from Aqueous Solutions by Iron- manganese Modified Cedarwood Biochar: Synthesis, Performance, Mechanism, and Variables
Bull Environ Contam Toxicol. 2023 Sep 16;111(3):43. doi: 10.1007/s00128-023-03802-9.ABSTRACTThree modified biochar (Cunninghamia lanceolata) with iron and manganese elementals (FMBCs) were successfully prepared and used to remove hexavalent chromium (Cr(VI)) from aqueous solutions. The biochar before and after decoration were characterized by advanced instruments. The adsorption capacities of modified biochar in different Cr(VI) (20 mg·L- 1, 1 mg·L- 1) solutions were 4868.28 mg·kg- 1 and 300 mg·kg- 1. The Cr(VI) removal was highest at pH 2. The possible adsorption was considered to be ion exchange adsorption, chemisorp...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2023 Category: Environmental Health Authors: Jizhuang Chu Shuhan Xin Yihang He Xin Gao Xin Zhou Yingqi Zhang Xinxin Liu Xinru Zhang Shiliang Wang Source Type: research
Nutrients in overlying water affect the environmental behavior of heavy metals in coastal sediments
This study provides a theoretical basis for investigating the coupling mechanisms between heavy metals and nutrients.PMID:37714367 | DOI:10.1016/j.envres.2023.117135
Source: Environmental Research - September 15, 2023 Category: Environmental Health Authors: Xiaozhu Liu Qunqun Liu Yanqing Sheng Source Type: research
Lanthanum nanoparticle (La < sub > 2 < /sub > O < sub > 3 < /sub > )-loaded adsorbents for removal of hexavalent chromium: a kinetics, isotherm, and thermodynamic study
Environ Sci Pollut Res Int. 2023 Sep 16. doi: 10.1007/s11356-023-29834-6. Online ahead of print.ABSTRACTNanocomposite adsorbents for wastewater treatment gained popularity in recent times. In the present study, nanoparticles prepared from lanthanum have been loaded on the powdered form of aquatic plants Salvinia molesta (S. molesta) and Typha latifolia (T. latifolia). These new adsorbents were NPS (nanoparticle-loaded S. molesta) and NPT (nanoparticle-loaded T. latifolia). The batch study was carried out to assess the effect of several factors on the adsorption of Cr(VI) by novel adsorbents NPS and NPT. XRD, SEM, FTIR, EDX...
Source: Environmental Science and Pollution Research International - September 15, 2023 Category: Environmental Health Authors: Asha Singh Dinesh Arora Renu Bala Anil Khokhar Sunil Kumar Source Type: research
Nutrients in overlying water affect the environmental behavior of heavy metals in coastal sediments
This study provides a theoretical basis for investigating the coupling mechanisms between heavy metals and nutrients.PMID:37714367 | DOI:10.1016/j.envres.2023.117135
Source: Environmental Research - September 15, 2023 Category: Environmental Health Authors: Xiaozhu Liu Qunqun Liu Yanqing Sheng Source Type: research
Lanthanum nanoparticle (La < sub > 2 < /sub > O < sub > 3 < /sub > )-loaded adsorbents for removal of hexavalent chromium: a kinetics, isotherm, and thermodynamic study
Environ Sci Pollut Res Int. 2023 Sep 16. doi: 10.1007/s11356-023-29834-6. Online ahead of print.ABSTRACTNanocomposite adsorbents for wastewater treatment gained popularity in recent times. In the present study, nanoparticles prepared from lanthanum have been loaded on the powdered form of aquatic plants Salvinia molesta (S. molesta) and Typha latifolia (T. latifolia). These new adsorbents were NPS (nanoparticle-loaded S. molesta) and NPT (nanoparticle-loaded T. latifolia). The batch study was carried out to assess the effect of several factors on the adsorption of Cr(VI) by novel adsorbents NPS and NPT. XRD, SEM, FTIR, EDX...
Source: Environmental Science and Pollution Research International - September 15, 2023 Category: Environmental Health Authors: Asha Singh Dinesh Arora Renu Bala Anil Khokhar Sunil Kumar Source Type: research
Chromium removal from chromium gypsum through microwave hydrothermal crystal phase regulation
In this study, microwave hydrothermal treatment was applied to remove chromium in CG. Under optimal conditions (solid-liquid ratio of 1:5, 0.1 M sulfuric acid as liquid media, and 110 °C), over 99% of the chromium in CG can be removed within 10 min. XRD spectra indicated that 59.8% gypsum was transformed to from dihydrate gypsum to hemihydrate gypsum. The toxicity leaching test shows that chromium in CG is 377.0 mg/L before detoxification and 0.55 mg/L after detoxification, which proves that chromium in CG lattice can be efficiently removed. This work enables to significantly advance the dehydration phase transformation p...
Source: Environmental Science and Pollution Research International - September 13, 2023 Category: Environmental Health Authors: Chengzhe Liao Xiaoqin Li Jun Li Jiayi Zheng Changzhou Weng Weizhen Liu Zhang Lin Source Type: research
