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Article
Classification and progress of extraction technologies for nonferrous metal resources
In recent years, the demand for strategic metal resources, essential for scientific and technological progress and industrial development, has multiplied. Ensuring a stable supply of these metals is critical t...
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Article
Co-hydrothermal carbonization of sewage sludge and coal slime for clean solid fuel production: a comprehensive assessment of hydrochar fuel characteristics and combustion behavior
The fuel characteristics and combustion behavior of the hydrochar obtained from the co-hydrothermal carbonization (co-HTC) of sewage sludge (SS) and coal slime (CS) were investigated. The results showed that a...
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Article
Efficient removal of bisphenol A by carbon nitride/peroxymonosulfate/solar system: multi-radical association mechanism by the morphology and crystallinity optimization
Two types of carbon nitrides were prepared by a thermal polymerization method with melamine and prefabricated supermolecules as precursors, and then used for the degradation of bisphenol A (BPA) in the presenc...
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Article
Pickering emulsion droplets and solid microspheres acting synergistically for continuous-flow cascade reactions
Integration of multiple incompatible catalysts in one continuous-flow reaction system is of paramount significance for green synthetic chemistry. Here we develop a continuous-flow cascade catalytic system by c...
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Article
A Si-K-Based Amendment Prepared by Coal Gangue and Plant Ash Could Improve the Growth of Maize Plants in Saline Soils
The aim of this study was to prepare a Si-K-based amendment by coal gangue and plant ash and clarify its feasibility for improving the growth of maize plants in saline soils.
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Article
Influence of the freeze–thaw process on coal gangue–based ecological restoration materials: performance and ecological risk assessment of heavy metals
Materials made from coal gangue (CGEr) can be used for ecological restoration in mining areas. This paper comprehensively analyzed the influence of the freeze-thaw process on the performance of CGEr and the en...
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Article
Arbuscular Mycorrhizal Fungi Induced Changes of Pb Migration and Bacterial Community in Both the Rhizosphere and Non-rhizosphere Soils of Paspalum notatum
Arbuscular mycorrhizal fungi (AMF) can form symbiosis with many plants and the effect of AMF on phytoremediation of heavy metal has been a hot topic. But the effects of AMF on pollutants and microbes in rhizos...
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Article
Combustion Characteristics and NO Emissions during Co-Combustion of Coal Gangue and Coal Slime in O2/CO2 Atmospheres
Coal slime has low ash content, and adding coal slime during coal gangue combustion may have influence on combustion character; and at this process, NO will emit, and lead to environmental pollution. O2/CO2 atmos...
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Article
Enhanced photocatalytic and settling performance of a mesoporous graphene/titanium oxide composite for wastewater treatment
A reduced graphene oxide-P25 (rGO-P25) composite was synthesized by one-step hydrothermal method. The photocatalytic degradation of Rhodamine B (RhB) by the rGO-P25 composite and its settling performance was i...
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Article
Formation of CaCO3 hollow microspheres in carbonated distiller waste from Solvay soda ash plants
For decades, distiller waste and CO2 were not the first choice for production of high valued products. Here, CaCO3 hollow microspheres, a high-value product was synthesized from such a reaction system. The synthe...
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Article
A Simple and Mild Synthesis of Zeolite Y from Bauxite Tailings for Lead Adsorption: Reusable, Efficient and Highly Selective
Zeolite Y was successfully synthesized by a hydrothermal method using bauxite tailings as starting materials to effectively remove Pb(II) from wastewater. It was shown that pure zeolite Y with typical octahedr...
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Article
Glycine-induced synthesis of vaterite by direct aqueous mineral carbonation of desulfurization gypsum
Climate change is urgently calling for rapid methods to capture atmospheric carbon dioxide (CO2). CO2 can be sequestred into gypsum from gas desulfurization by carbonation to produce calcium carbonate (CaCO3). Ho...
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Article
Quantitative characterization of climate change and its impact on aeolian desertification: a case study in northwest Shanxi of China
Aeolian desertification, a serious degradation of soil and vegetation, is one of the most important issues in arid and semi-arid regions in terms of society/economy and environment. However, there still remain...
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Article
CO2 sequestration: high conversion of gypsum into CaCO3 by ultrasonic carbonation
Offsetting global warming requires rapid methods to sequester atmospheric carbon dioxide (CO2), a major greenhouse gas. For instance, mineral carbonation of gypsum from flue gas desulfurization (FGD) is a potenti...
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Article
Selective adsorption of octadecylamine hydrochloride on the surface of KCl crystal: adsorption energy based on density functional theory
Flotation has become a significant technique for the KCl separation from NaCl-containing complex systems, but the true nature of adsorption selectivity of collector on the crystal surface of KCl is still uncle...
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Article
Open AccessLiquid marble-derived solid-liquid hybrid superparticles for CO2 capture
The design of effective CO2 capture materials is an ongoing challenge. Here we report a concept to overcome current limitations associated with both liquid and solid CO2 capture materials by exploiting a solid-li...
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Article
Preparation of a PASi-P(AM-ADB) hybrid flocculant and efficiently removal bio-refractory organics from coking wastewater
Bio-refractory organic contaminants (BOC) originating from coking wastewater is a severe threat to the environment and human health. The efficient pretreatment of coking wastewater is necessary to decrease the...
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Article
Two-step modification towards enhancing the adsorption capacity of fly ash for both inorganic Cu(II) and organic methylene blue from aqueous solution
A new adsorption material from fly ash (FA) was prepared by a two-step surface modification process, which showed higher ability for the removal of both inorganic and organic cationic pollutants from aqueous s...
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Article
Effect of surfactants on the properties of a gas-sealing coating modified with fly ash and cement
Gas leakage seriously threatens the safety of workers in coal mines. Spraying the gas-sealing coating is one of the effective methods to relieve gas leakage. However, the hydrophobic property of coal makes it ...
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Article
Converting waste coal fly ash into effective adsorbent for the removal of ammonia nitrogen in water
Converting coal fly ash waste into an adsorbent for the removal of ammonia nitrogen is an effective approach. Chemically treated highly porous converted coal fly ash was prepared through hydrothermal synthesis...
